Merge pull request #3653 from monopole/pinToApi

Pin to api v0.8.4

.dockerignore

@@ -0,0 +1,8 @@
+.github
+docs
+examples
+functions
+hack
+site
+travis
+*.md

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,68 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ""
+labels:
+  - kind/bug
+assignees: ""
+---
+
+<!--
+Please read this page: https://kubernetes-sigs.github.io/kustomize/contributing/bugs/ before
+filing a bug
+-->
+
+<!-- Feel free to skip the sections if they are not applicable. -->
+
+**Describe the bug**
+
+<!-- A clear and concise description of what the bug is. -->
+
+**Files that can reproduce the issue**
+
+<!--
+We cannot figure out or fix the issue if we don't know how to reproduce. Please
+provide a minimum set of files that can reproduce the issue. You can paste the
+file contents here or provide a link to a tarball or git repo.
+
+Example:
+
+kustomization.yaml
+
+```
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+...
+```
+
+resources.yaml
+
+```
+apiVersion: v1
+kind: Deployment
+...
+```
+
+...
+-->
+
+**Expected output**
+
+<!-- What's the expected output? -->
+
+**Actual output**
+
+<!-- What's the actual output? -->
+
+**Kustomize version**
+
+<!-- Please use the latest version when it's possible. -->
+
+**Platform**
+
+<!-- Linux/macOS/Windows? -->
+
+**Additional context**
+
+<!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/config.yaml

@@ -0,0 +1 @@
+blank_issues_enabled: true

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,26 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ""
+labels:
+  - kind/feature
+assignees: ""
+---
+
+<!-- Feel free to skip the sections if they are not applicable. -->
+
+**Is your feature request related to a problem? Please describe.**
+
+<!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
+
+**Describe the solution you'd like**
+
+<!-- A clear and concise description of what you want to happen. -->
+
+**Describe alternatives you've considered**
+
+<!-- A clear and concise description of any alternative solutions or features you've considered. -->
+
+**Additional context**
+
+<!-- Add any other context or screenshots about the feature request here. -->

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,9 @@
+---
+name: Question
+about: Ask a question about the kustomize
+title: "[Question]"
+labels: ""
+assignees: ""
+---
+
+<!-- Please describe your question here -->

.github/workflows/go.yml

@@ -23,7 +23,7 @@ jobs:
       uses: actions/checkout@v2
 
     - name: Lint
-      run: ./travis/kyaml-pre-commit.sh
+      run: ./scripts/kyaml-pre-commit.sh
       env:
         KUSTOMIZE_DOCKER_E2E: false # don't need to do e2e tests for linting
 

Makefile

@@ -4,8 +4,19 @@
 # Makefile for kustomize CLI and API.
 
 MYGOBIN := $(shell go env GOPATH)/bin
-SHELL := /bin/bash
+SHELL := /usr/bin/env bash
 export PATH := $(MYGOBIN):$(PATH)
+MODULES := '"cmd/config" "api/" "kustomize/" "kyaml/"'
+
+# Provide defaults for REPO_OWNER and REPO_NAME if not present.
+# Typically these values would be provided by Prow.
+ifndef REPO_OWNER
+REPO_OWNER := "kubernetes-sigs"
+endif
+
+ifndef REPO_NAME
+REPO_NAME := "kustomize"
+endif
 
 .PHONY: all
 all: verify-kustomize
@@ -15,18 +26,21 @@ verify-kustomize: \
 	lint-kustomize \
 	test-unit-kustomize-all \
 	test-examples-kustomize-against-HEAD \
-	test-examples-kustomize-against-3.6.1
+	test-examples-kustomize-against-4.0 \
+	test-examples-kustomize-against-3.10
 
 # The following target referenced by a file in
 # https://github.com/kubernetes/test-infra/tree/master/config/jobs/kubernetes-sigs/kustomize
 .PHONY: prow-presubmit-check
 prow-presubmit-check: \
 	lint-kustomize \
+	test-multi-module \
 	test-unit-kustomize-all \
-	test-examples-kustomize-against-HEAD \
-	test-examples-kustomize-against-3.6.1 \
 	test-unit-cmd-all \
-	test-go-mod
+	test-go-mod \
+	test-examples-kustomize-against-HEAD \
+	test-examples-kustomize-against-4.0 \
+	test-examples-kustomize-against-3.10
 
 .PHONY: verify-kustomize-e2e
 verify-kustomize-e2e: test-examples-e2e-kustomize
@@ -45,34 +59,42 @@ $(MYGOBIN)/golangci-lint-kustomize:
 		GO111MODULE=on go build -tags=tools -o $(MYGOBIN)/golangci-lint-kustomize github.com/golangci/golangci-lint/cmd/golangci-lint; \
 	)
 
-# Version pinned by api/go.mod
+# Install from version specified in api/go.mod.
 $(MYGOBIN)/mdrip:
 	cd api; \
 	go install github.com/monopole/mdrip
 
-# Version pinned by api/go.mod
+# Install from version specified in api/go.mod.
 $(MYGOBIN)/stringer:
 	cd api; \
 	go install golang.org/x/tools/cmd/stringer
 
-# Version pinned by api/go.mod
+# Install from version specified in api/go.mod.
 $(MYGOBIN)/goimports:
 	cd api; \
 	go install golang.org/x/tools/cmd/goimports
 
-# Install resource from whatever is checked out.
-$(MYGOBIN)/resource:
-	cd cmd/resource; \
+# Build from local source.
+$(MYGOBIN)/gorepomod:
+	cd cmd/gorepomod; \
 	go install .
 
-# To pin pluginator, use this recipe instead:
-#   cd api;
-#   go install sigs.k8s.io/kustomize/pluginator/v2
+# Build from local source.
+$(MYGOBIN)/k8scopy:
+	cd cmd/k8scopy; \
+	go install .
+
+# Build from local source.
 $(MYGOBIN)/pluginator:
-	cd pluginator; \
+	cd cmd/pluginator; \
 	go install .
 
-# Install kustomize from whatever is checked out.
+# Build from local source.
+$(MYGOBIN)/prchecker:
+	cd cmd/prchecker; \
+	go install .
+
+# Build from local source.
 $(MYGOBIN)/kustomize:
 	cd kustomize; \
 	go install .
@@ -81,8 +103,12 @@ $(MYGOBIN)/kustomize:
 install-tools: \
 	$(MYGOBIN)/goimports \
 	$(MYGOBIN)/golangci-lint-kustomize \
+	$(MYGOBIN)/gorepomod \
+	$(MYGOBIN)/helm \
+	$(MYGOBIN)/k8scopy \
 	$(MYGOBIN)/mdrip \
 	$(MYGOBIN)/pluginator \
+	$(MYGOBIN)/prchecker \
 	$(MYGOBIN)/stringer
 
 ### Begin kustomize plugin rules.
@@ -125,7 +151,8 @@ _builtinplugins = \
 	PrefixSuffixTransformer.go \
 	ReplicaCountTransformer.go \
 	SecretGenerator.go \
-	ValueAddTransformer.go
+	ValueAddTransformer.go \
+	HelmChartInflationGenerator.go
 
 # Maintaining this explicit list of generated files, and
 # adding it as a dependency to a few targets, to assure
@@ -151,6 +178,7 @@ $(pGen)/PrefixSuffixTransformer.go: $(pSrc)/prefixsuffixtransformer/PrefixSuffix
 $(pGen)/ReplicaCountTransformer.go: $(pSrc)/replicacounttransformer/ReplicaCountTransformer.go
 $(pGen)/SecretGenerator.go: $(pSrc)/secretgenerator/SecretGenerator.go
 $(pGen)/ValueAddTransformer.go: $(pSrc)/valueaddtransformer/ValueAddTransformer.go
+$(pGen)/HelmChartInflationGenerator.go: $(pSrc)/helmchartinflationgenerator/HelmChartInflationGenerator.go
 
 # The (verbose but portable) Makefile way to convert to lowercase.
 toLowerCase = $(subst A,a,$(subst B,b,$(subst C,c,$(subst D,d,$(subst E,e,$(subst F,f,$(subst G,g,$(subst H,h,$(subst I,i,$(subst J,j,$(subst K,k,$(subst L,l,$(subst M,m,$(subst N,n,$(subst O,o,$(subst P,p,$(subst Q,q,$(subst R,r,$(subst S,s,$(subst T,t,$(subst U,u,$(subst V,v,$(subst W,w,$(subst X,x,$(subst Y,y,$(subst Z,z,$1))))))))))))))))))))))))))
@@ -169,24 +197,27 @@ $(pGen)/%.go: $(MYGOBIN)/pluginator
 .PHONY: generate-kustomize-builtin-plugins
 generate-kustomize-builtin-plugins: $(builtinplugins)
 
-.PHONY: kustomize-external-go-plugin-build
-kustomize-external-go-plugin-build:
+.PHONY: build-kustomize-external-go-plugin
+build-kustomize-external-go-plugin:
 	./hack/buildExternalGoPlugins.sh ./plugin
 
-.PHONY: kustomize-external-go-plugin-clean
-kustomize-external-go-plugin-clean:
+.PHONY: clean-kustomize-external-go-plugin
+clean-kustomize-external-go-plugin:
 	./hack/buildExternalGoPlugins.sh ./plugin clean
 
 ### End kustomize plugin rules.
 
 .PHONY: lint-kustomize
 lint-kustomize: install-tools $(builtinplugins)
-	cd api; \
-	$(MYGOBIN)/golangci-lint-kustomize -c ../.golangci-kustomize.yml run ./...
-	cd kustomize; \
-	$(MYGOBIN)/golangci-lint-kustomize -c ../.golangci-kustomize.yml run ./...
-	cd pluginator; \
-	$(MYGOBIN)/golangci-lint-kustomize -c ../.golangci-kustomize.yml run ./...
+	cd api; $(MYGOBIN)/golangci-lint-kustomize \
+	  -c ../.golangci-kustomize.yml \
+	  run ./...
+	cd kustomize; $(MYGOBIN)/golangci-lint-kustomize \
+	  -c ../.golangci-kustomize.yml \
+	  run ./...
+	cd cmd/pluginator; $(MYGOBIN)/golangci-lint-kustomize \
+	  -c ../../.golangci-kustomize.yml \
+	  run ./...
 
 # Used to add non-default compilation flags when experimenting with
 # plugin-to-api compatibility checks.
@@ -194,6 +225,10 @@ lint-kustomize: install-tools $(builtinplugins)
 build-kustomize-api: $(builtinplugins)
 	cd api; go build ./...
 
+.PHONY: generate-kustomize-api
+generate-kustomize-api: $(MYGOBIN)/k8scopy
+	cd api; go generate ./...
+
 .PHONY: test-unit-kustomize-api
 test-unit-kustomize-api: build-kustomize-api
 	cd api; go test ./...  -ldflags "-X sigs.k8s.io/kustomize/api/provenance.version=v444.333.222"
@@ -213,10 +248,23 @@ test-unit-kustomize-all: \
 	test-unit-kustomize-plugins
 
 test-unit-cmd-all:
-	./travis/kyaml-pre-commit.sh
+	./scripts/kyaml-pre-commit.sh
 
 test-go-mod:
-	./travis/check-go-mod.sh
+	./scripts/check-go-mod.sh
+
+# Environment variables are defined at
+# https://github.com/kubernetes/test-infra/blob/master/prow/jobs.md#job-environment-variables
+.PHONY: test-multi-module
+test-multi-module: $(MYGOBIN)/prchecker
+	( \
+		export MYGOBIN=$(MYGOBIN); \
+		export REPO_OWNER=$(REPO_OWNER); \
+		export REPO_NAME=$(REPO_NAME); \
+		export PULL_NUMBER=$(PULL_NUMBER); \
+		export MODULES=$(MODULES); \
+		./scripts/check-multi-module.sh; \
+	)
 
 .PHONY:
 test-examples-e2e-kustomize: $(MYGOBIN)/mdrip $(MYGOBIN)/kind
@@ -233,17 +281,12 @@ test-examples-kustomize-against-HEAD: $(MYGOBIN)/kustomize $(MYGOBIN)/mdrip
 	./hack/testExamplesAgainstKustomize.sh HEAD
 
 .PHONY:
-test-examples-kustomize-against-3.6.1: $(MYGOBIN)/mdrip
-	( \
-		set -e; \
-		tag=v3.6.1; \
-		/bin/rm -f $(MYGOBIN)/kustomize; \
-		echo "Installing kustomize $$tag."; \
-		GO111MODULE=on go get sigs.k8s.io/kustomize/kustomize/v3@$${tag}; \
-		./hack/testExamplesAgainstKustomize.sh $$tag; \
-		echo "Reinstalling kustomize from HEAD."; \
-		cd kustomize; go install .; \
-	)
+test-examples-kustomize-against-4.0: $(MYGOBIN)/mdrip
+	./hack/testExamplesAgainstKustomize.sh v4@v4.0.1
+
+.PHONY:
+test-examples-kustomize-against-3.10: $(MYGOBIN)/mdrip
+	./hack/testExamplesAgainstKustomize.sh v3@v3.10.0
 
 # linux only.
 # This is for testing an example plugin that
@@ -283,16 +326,16 @@ $(MYGOBIN)/helmV3:
 	( \
 		set -e; \
 		d=$(shell mktemp -d); cd $$d; \
-		tgzFile=helm-v3.2.0-rc.1-linux-amd64.tar.gz; \
+		tgzFile=helm-v3.4.0-linux-amd64.tar.gz; \
 		wget https://get.helm.sh/$$tgzFile; \
 		tar -xvzf $$tgzFile; \
 		mv linux-amd64/helm $(MYGOBIN)/helmV3; \
 		rm -rf $$d \
 	)
 
-# Default version of helm is v2 for the time being.
-$(MYGOBIN)/helm: $(MYGOBIN)/helmV2
-	ln -s $(MYGOBIN)/helmV2 $(MYGOBIN)/helm
+# Default version of helm is v3.
+$(MYGOBIN)/helm: $(MYGOBIN)/helmV3
+	ln -s $(MYGOBIN)/helmV3 $(MYGOBIN)/helm
 
 $(MYGOBIN)/kind:
 	( \
@@ -304,14 +347,28 @@ $(MYGOBIN)/kind:
         rm -rf $$d; \
 	)
 
+# linux only.
+$(MYGOBIN)/gh:
+	( \
+		set -e; \
+		d=$(shell mktemp -d); cd $$d; \
+		tgzFile=gh_1.0.0_linux_amd64.tar.gz; \
+		wget https://github.com/cli/cli/releases/download/v1.0.0/$$tgzFile; \
+		tar -xvzf $$tgzFile; \
+		mv gh_1.0.0_linux_amd64/bin/gh  $(MYGOBIN)/gh; \
+		rm -rf $$d \
+	)
+
 .PHONY: clean
-clean: kustomize-external-go-plugin-clean
+clean: clean-kustomize-external-go-plugin
 	go clean --cache
 	rm -f $(builtinplugins)
-	rm -f $(MYGOBIN)/pluginator
 	rm -f $(MYGOBIN)/kustomize
 	rm -f $(MYGOBIN)/golangci-lint-kustomize
 
+# Handle pluginator manually.
+# rm -f $(MYGOBIN)/pluginator
+
 # Nuke the site from orbit.  It's the only way to be sure.
 .PHONY: nuke
 nuke: clean

OWNERS_ALIASES

@@ -11,3 +11,4 @@ aliases:
     - pwittrock
     - mortent
     - phanimarupaka
+    - Shell32-Natsu

README.md

@@ -9,29 +9,31 @@ patch [kubernetes style] API objects.  It's like
 [`make`], in that what it does is declared in a file,
 and it's like [`sed`], in that it emits edited text.
 
-This tool is sponsored by [sig-cli] ([KEP]), and
-inspired by [DAM].
+This tool is sponsored by [sig-cli] ([KEP]).
+
+ - [Installation instructions](https://kubernetes-sigs.github.io/kustomize/installation)
+ - [General documentation](https://kubernetes-sigs.github.io/kustomize)
+ - [Examples](examples)
 
 [![Build Status](https://prow.k8s.io/badge.svg?jobs=kustomize-presubmit-master)](https://prow.k8s.io/job-history/kubernetes-jenkins/pr-logs/directory/kustomize-presubmit-master)
 [![Go Report Card](https://goreportcard.com/badge/github.com/kubernetes-sigs/kustomize)](https://goreportcard.com/report/github.com/kubernetes-sigs/kustomize)
 
-Download a binary from the [release page], or see
-these [instructions](https://kubernetes-sigs.github.io/kustomize/installation/).
-
-Browse the [docs](https://kubernetes-sigs.github.io/kustomize/) or jump right into the
-tested [examples](examples).
-
 ## kubectl integration
 
-Since [v1.14][kubectl announcement] the kustomize build system has been included in kubectl.
+The kustomize build flow at [v2.0.3] was added
+to [kubectl v1.14][kubectl announcement].  The kustomize
+flow in kubectl has remained frozen at v2.0.3 while work
+to extract kubectl from the k/k repo, and work to remove
+kustomize's dependence on core k/k code ([#2506]) has proceeded.
+The reintegration effort is tracked in [#1500] (and its blocking
+issues).
 
-| kubectl version | kustomize version |
-|---------|--------|
-| v1.16.0 | [v2.0.3](/../../tree/v2.0.3) |
-| v1.15.x | [v2.0.3](/../../tree/v2.0.3) |
-| v1.14.x | [v2.0.3](/../../tree/v2.0.3) |
+[v2.0.3]: /../../tree/v2.0.3
+[#2506]: https://github.com/kubernetes-sigs/kustomize/issues/2506
+[#1500]: https://github.com/kubernetes-sigs/kustomize/issues/1500
 
-For examples and guides for using the kubectl integration please see the [kubectl book] or the [kubernetes documentation].
+For examples and guides for using the kubectl integration please
+see the [kubectl book] or the [kubernetes documentation].
 
 ## Usage
 
@@ -151,7 +153,7 @@ is governed by the [Kubernetes Code of Conduct].
 [imageBase]: docs/images/base.jpg
 [imageOverlay]: docs/images/overlay.jpg
 [kubectl announcement]: https://kubernetes.io/blog/2019/03/25/kubernetes-1-14-release-announcement
-[kubectl book]: https://kubectl.docs.kubernetes.io/pages/app_customization/introduction.html
+[kubectl book]: https://kubectl.docs.kubernetes.io/guides/introduction/kustomize/
 [kubernetes documentation]: https://kubernetes.io/docs/tasks/manage-kubernetes-objects/kustomization/
 [kubernetes style]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#kubernetes-style-object
 [kustomization]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#kustomization

api/builtins/AnnotationsTransformer.go

@@ -7,7 +7,6 @@ import (
 	"sigs.k8s.io/kustomize/api/filters/annotations"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -25,11 +24,14 @@ func (p *AnnotationsTransformerPlugin) Config(
 }
 
 func (p *AnnotationsTransformerPlugin) Transform(m resmap.ResMap) error {
+	if len(p.Annotations) == 0 {
+		return nil
+	}
 	for _, r := range m.Resources() {
-		err := filtersutil.ApplyToJSON(annotations.Filter{
+		err := r.ApplyFilter(annotations.Filter{
 			Annotations: p.Annotations,
 			FsSlice:     p.FieldSpecs,
-		}, r)
+		})
 		if err != nil {
 			return err
 		}

api/builtins/HashTransformer.go

@@ -28,6 +28,7 @@ func (p *HashTransformerPlugin) Transform(m resmap.ResMap) error {
 			if err != nil {
 				return err
 			}
+			res.StorePreviousId()
 			res.SetName(fmt.Sprintf("%s-%s", res.GetName(), h))
 		}
 	}

api/builtins/HelmChartInflationGenerator.go

@@ -0,0 +1,287 @@
+// Code generated by pluginator on HelmChartInflationGenerator; DO NOT EDIT.
+// pluginator {unknown  1970-01-01T00:00:00Z  }
+
+package builtins
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+	"strings"
+
+	"github.com/imdario/mergo"
+	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/api/filesys"
+	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/yaml"
+)
+
+// HelmChartInflationGeneratorPlugin is a plugin to generate resources
+// from a remote or local helm chart.
+type HelmChartInflationGeneratorPlugin struct {
+	h                *resmap.PluginHelpers
+	types.ObjectMeta `json:"metadata,omitempty" yaml:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
+	runHelmCommand   func([]string) ([]byte, error)
+	types.HelmChartArgs
+	tmpDir string
+}
+
+var KustomizePlugin HelmChartInflationGeneratorPlugin
+
+// Config uses the input plugin configurations `config` to setup the generator
+// options
+func (p *HelmChartInflationGeneratorPlugin) Config(h *resmap.PluginHelpers, config []byte) error {
+	p.h = h
+	err := yaml.Unmarshal(config, p)
+	if err != nil {
+		return err
+	}
+	tmpDir, err := filesys.NewTmpConfirmedDir()
+	if err != nil {
+		return err
+	}
+	p.tmpDir = string(tmpDir)
+	if p.ChartName == "" {
+		return fmt.Errorf("chartName cannot be empty")
+	}
+	if p.ChartHome == "" {
+		p.ChartHome = filepath.Join(p.tmpDir, "chart")
+	}
+	if p.ChartRepoName == "" {
+		p.ChartRepoName = "stable"
+	}
+	if p.HelmBin == "" {
+		p.HelmBin = "helm"
+	}
+	if p.HelmHome == "" {
+		p.HelmHome = filepath.Join(p.tmpDir, ".helm")
+	}
+	if p.Values == "" {
+		p.Values = filepath.Join(p.ChartHome, p.ChartName, "values.yaml")
+	}
+	if p.ValuesMerge == "" {
+		p.ValuesMerge = "override"
+	}
+	// runHelmCommand will run `helm` command with args provided. Return stdout
+	// and error if there is any.
+	p.runHelmCommand = func(args []string) ([]byte, error) {
+		stdout := new(bytes.Buffer)
+		stderr := new(bytes.Buffer)
+		cmd := exec.Command(p.HelmBin, args...)
+		cmd.Stdout = stdout
+		cmd.Stderr = stderr
+		cmd.Env = append(cmd.Env,
+			fmt.Sprintf("HELM_CONFIG_HOME=%s", p.HelmHome),
+			fmt.Sprintf("HELM_CACHE_HOME=%s/.cache", p.HelmHome),
+			fmt.Sprintf("HELM_DATA_HOME=%s/.data", p.HelmHome),
+		)
+		err := cmd.Run()
+		if err != nil {
+			return stdout.Bytes(),
+				errors.Wrap(
+					fmt.Errorf("failed to run command %s %s", p.HelmBin, strings.Join(args, " ")),
+					stderr.String(),
+				)
+		}
+		return stdout.Bytes(), nil
+	}
+	return nil
+}
+
+// EncodeValues for writing
+func (p *HelmChartInflationGeneratorPlugin) EncodeValues(w io.Writer) error {
+	d, err := yaml.Marshal(p.ValuesLocal)
+	if err != nil {
+		return err
+	}
+	_, err = w.Write(d)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// useValuesLocal process (merge) inflator config provided values with chart default values.yaml
+func (p *HelmChartInflationGeneratorPlugin) useValuesLocal() error {
+	// not override, merge, none
+	if !(p.ValuesMerge == "none" || p.ValuesMerge == "no" || p.ValuesMerge == "false") {
+		var pValues []byte
+		var err error
+
+		if filepath.IsAbs(p.Values) {
+			pValues, err = ioutil.ReadFile(p.Values)
+		} else {
+			pValues, err = p.h.Loader().Load(p.Values)
+		}
+		if err != nil {
+			return err
+		}
+		chValues := make(map[string]interface{})
+		err = yaml.Unmarshal(pValues, &chValues)
+		if err != nil {
+			return err
+		}
+		if p.ValuesMerge == "override" {
+			err = mergo.Merge(&chValues, p.ValuesLocal, mergo.WithOverride)
+			if err != nil {
+				return err
+			}
+		}
+		if p.ValuesMerge == "merge" {
+			err = mergo.Merge(&chValues, p.ValuesLocal)
+			if err != nil {
+				return err
+			}
+		}
+		p.ValuesLocal = chValues
+	}
+	b, err := yaml.Marshal(p.ValuesLocal)
+	if err != nil {
+		return err
+	}
+	path, err := p.writeValuesBytes(b)
+	if err != nil {
+		return err
+	}
+	p.Values = path
+	return nil
+}
+
+// copyValues will copy the relative values file into the temp directory
+// to avoid messing up with CWD.
+func (p *HelmChartInflationGeneratorPlugin) copyValues() error {
+	// only copy when the values path is not absolute
+	if filepath.IsAbs(p.Values) {
+		return nil
+	}
+	// we must use use loader to read values file
+	b, err := p.h.Loader().Load(p.Values)
+	if err != nil {
+		return err
+	}
+	path, err := p.writeValuesBytes(b)
+	if err != nil {
+		return err
+	}
+	p.Values = path
+	return nil
+}
+
+func (p *HelmChartInflationGeneratorPlugin) writeValuesBytes(b []byte) (string, error) {
+	path := filepath.Join(p.ChartHome, p.ChartName, "kustomize-values.yaml")
+	err := ioutil.WriteFile(path, b, 0644)
+	if err != nil {
+		return "", err
+	}
+	return path, nil
+}
+
+// Generate implements generator
+func (p *HelmChartInflationGeneratorPlugin) Generate() (resmap.ResMap, error) {
+	// cleanup
+	defer os.RemoveAll(p.tmpDir)
+	// check helm version. we only support V3
+	err := p.checkHelmVersion()
+	if err != nil {
+		return nil, err
+	}
+	// pull the chart
+	if !p.checkLocalChart() {
+		_, err := p.runHelmCommand(p.getPullCommandArgs())
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// inflator config valuesLocal
+	if len(p.ValuesLocal) > 0 {
+		err := p.useValuesLocal()
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		err := p.copyValues()
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// render the charts
+	stdout, err := p.runHelmCommand(p.getTemplateCommandArgs())
+	if err != nil {
+		return nil, err
+	}
+
+	return p.h.ResmapFactory().NewResMapFromBytes(stdout)
+}
+
+func (p *HelmChartInflationGeneratorPlugin) getTemplateCommandArgs() []string {
+	args := []string{"template"}
+	if p.ReleaseName != "" {
+		args = append(args, p.ReleaseName)
+	}
+	args = append(args, filepath.Join(p.ChartHome, p.ChartName))
+	if p.ReleaseNamespace != "" {
+		args = append(args, "--namespace", p.ReleaseNamespace)
+	}
+	if p.Values != "" {
+		args = append(args, "--values", p.Values)
+	}
+	args = append(args, p.ExtraArgs...)
+	return args
+}
+
+func (p *HelmChartInflationGeneratorPlugin) getPullCommandArgs() []string {
+	args := []string{"pull", "--untar", "--untardir", p.ChartHome}
+	chartName := fmt.Sprintf("%s/%s", p.ChartRepoName, p.ChartName)
+	if p.ChartVersion != "" {
+		args = append(args, "--version", p.ChartVersion)
+	}
+	if p.ChartRepoURL != "" {
+		args = append(args, "--repo", p.ChartRepoURL)
+		chartName = p.ChartName
+	}
+
+	args = append(args, chartName)
+
+	return args
+}
+
+// checkLocalChart will return true if the chart does exist in
+// local chart home.
+func (p *HelmChartInflationGeneratorPlugin) checkLocalChart() bool {
+	path := filepath.Join(p.ChartHome, p.ChartName)
+	s, err := os.Stat(path)
+	if err != nil {
+		return false
+	}
+	return s.IsDir()
+}
+
+// checkHelmVersion will return an error if the helm version is not V3
+func (p *HelmChartInflationGeneratorPlugin) checkHelmVersion() error {
+	stdout, err := p.runHelmCommand([]string{"version", "-c", "--short"})
+	if err != nil {
+		return err
+	}
+	r, err := regexp.Compile(`v\d+(\.\d+)+`)
+	if err != nil {
+		return err
+	}
+	v := string(r.Find(stdout))[1:]
+	majorVersion := strings.Split(v, ".")[0]
+	if majorVersion != "3" {
+		return fmt.Errorf("this plugin requires helm V3 but got v%s", v)
+	}
+	return nil
+}
+
+func NewHelmChartInflationGeneratorPlugin() resmap.GeneratorPlugin {
+	return &HelmChartInflationGeneratorPlugin{}
+}

api/builtins/ImageTagTransformer.go

@@ -8,10 +8,9 @@ import (
 	"regexp"
 	"strings"
 
-	"sigs.k8s.io/kustomize/api/transform"
-	"sigs.k8s.io/kustomize/api/types"
-
+	"sigs.k8s.io/kustomize/api/filters/imagetag"
 	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/yaml"
 )
 
@@ -31,18 +30,19 @@ func (p *ImageTagTransformerPlugin) Config(
 
 func (p *ImageTagTransformerPlugin) Transform(m resmap.ResMap) error {
 	for _, r := range m.Resources() {
-		for _, path := range p.FieldSpecs {
-			if !r.OrgId().IsSelected(&path.Gvk) {
-				continue
-			}
-			err := transform.MutateField(
-				r.Map(), path.PathSlice(), false, p.mutateImage)
-			if err != nil {
-				return err
-			}
+		// traverse all fields at first
+		err := r.ApplyFilter(imagetag.LegacyFilter{
+			ImageTag: p.ImageTag,
+		})
+		if err != nil {
+			return err
 		}
-		// Kept for backward compatibility
-		if err := p.findAndReplaceImage(r.Map()); err != nil && r.OrgId().Kind != `CustomResourceDefinition` {
+		// then use user specified field specs
+		err = r.ApplyFilter(imagetag.Filter{
+			ImageTag: p.ImageTag,
+			FsSlice:  p.FieldSpecs,
+		})
+		if err != nil {
 			return err
 		}
 	}

api/builtins/LabelTransformer.go

@@ -7,7 +7,6 @@ import (
 	"sigs.k8s.io/kustomize/api/filters/labels"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -25,11 +24,14 @@ func (p *LabelTransformerPlugin) Config(
 }
 
 func (p *LabelTransformerPlugin) Transform(m resmap.ResMap) error {
+	if len(p.Labels) == 0 {
+		return nil
+	}
 	for _, r := range m.Resources() {
-		err := filtersutil.ApplyToJSON(labels.Filter{
+		err := r.ApplyFilter(labels.Filter{
 			Labels:  p.Labels,
 			FsSlice: p.FieldSpecs,
-		}, r)
+		})
 		if err != nil {
 			return err
 		}

api/builtins/NamespaceTransformer.go

@@ -7,12 +7,8 @@ import (
 	"fmt"
 
 	"sigs.k8s.io/kustomize/api/filters/namespace"
-	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/resource"
-	"sigs.k8s.io/kustomize/api/transform"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -20,11 +16,6 @@ import (
 type NamespaceTransformerPlugin struct {
 	types.ObjectMeta `json:"metadata,omitempty" yaml:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
 	FieldSpecs       []types.FieldSpec `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
-
-	// YAMLSupport can be set to true to use the kyaml filter instead of the
-	// kunstruct transformer.
-	// TODO: change the default to use kyaml when it is stable
-	YAMLSupport bool `json:"yamlSupport,omitempty" yaml:"yamlSupport,omitempty"`
 }
 
 func (p *NamespaceTransformerPlugin) Config(
@@ -39,35 +30,18 @@ func (p *NamespaceTransformerPlugin) Transform(m resmap.ResMap) error {
 		return nil
 	}
 	for _, r := range m.Resources() {
-		if len(r.Map()) == 0 {
+		if r.IsEmpty() {
 			// Don't mutate empty objects?
 			continue
 		}
-
-		id := r.OrgId()
-
-		if p.YAMLSupport {
-			// use the new style transform
-			err := filtersutil.ApplyToJSON(namespace.Filter{
-				Namespace: p.Namespace,
-				FsSlice:   p.FieldSpecs,
-			}, r)
-			if err != nil {
-				return err
-			}
-		} else {
-			// use the old style transform
-			applicableFs := p.applicableFieldSpecs(id)
-			for _, fs := range applicableFs {
-				err := transform.MutateField(
-					r.Map(), fs.PathSlice(), fs.CreateIfNotPresent,
-					p.changeNamespace(r))
-				if err != nil {
-					return err
-				}
-			}
+		r.StorePreviousId()
+		err := r.ApplyFilter(namespace.Filter{
+			Namespace: p.Namespace,
+			FsSlice:   p.FieldSpecs,
+		})
+		if err != nil {
+			return err
 		}
-
 		matches := m.GetMatchingResourcesByCurrentId(r.CurId().Equals)
 		if len(matches) != 1 {
 			return fmt.Errorf(
@@ -77,74 +51,6 @@ func (p *NamespaceTransformerPlugin) Transform(m resmap.ResMap) error {
 	return nil
 }
 
-// Special casing metadata.namespace since
-// all objects have it, even "ClusterKind" objects
-// that don't exist in a namespace (the Namespace
-// object itself doesn't live in a namespace).
-func (p *NamespaceTransformerPlugin) applicableFieldSpecs(id resid.ResId) []types.FieldSpec {
-	var res []types.FieldSpec
-	for _, fs := range p.FieldSpecs {
-		if id.IsSelected(&fs.Gvk) &&
-			(fs.Path != types.MetadataNamespacePath ||
-				(fs.Path == types.MetadataNamespacePath && id.IsNamespaceableKind())) {
-			res = append(res, fs)
-		}
-	}
-	return res
-}
-
-func (p *NamespaceTransformerPlugin) changeNamespace(
-	_ *resource.Resource) func(in interface{}) (interface{}, error) {
-	return func(in interface{}) (interface{}, error) {
-		switch in.(type) {
-		case string:
-			// will happen when the metadata/namespace
-			// value is replaced
-			return p.Namespace, nil
-		case []interface{}:
-			l, _ := in.([]interface{})
-			for idx, item := range l {
-				switch item.(type) {
-				case map[string]interface{}:
-					// Will happen when mutating the subjects
-					// field of ClusterRoleBinding and RoleBinding
-					inMap, _ := item.(map[string]interface{})
-					if _, ok := inMap["name"]; !ok {
-						continue
-					}
-					name, ok := inMap["name"].(string)
-					if !ok {
-						continue
-					}
-					// The only case we need to force the namespace
-					// if for the "service account". "default" is
-					// kind of hardcoded here for right now.
-					if name != "default" {
-						continue
-					}
-					inMap["namespace"] = p.Namespace
-					l[idx] = inMap
-				default:
-					// nothing to do for right now
-				}
-			}
-			return in, nil
-		case map[string]interface{}:
-			// Will happen if the createField=true
-			// when the namespace is added to the
-			// object
-			inMap := in.(map[string]interface{})
-			if len(inMap) == 0 {
-				return p.Namespace, nil
-			} else {
-				return in, nil
-			}
-		default:
-			return in, nil
-		}
-	}
-}
-
 func NewNamespaceTransformerPlugin() resmap.TransformerPlugin {
 	return &NamespaceTransformerPlugin{}
 }

api/builtins/PatchJson6902Transformer.go

@@ -10,21 +10,17 @@ import (
 	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/filters/patchjson6902"
 	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
 type PatchJson6902TransformerPlugin struct {
 	ldr          ifc.Loader
 	decodedPatch jsonpatch.Patch
-	Target       types.PatchTarget `json:"target,omitempty" yaml:"target,omitempty"`
-	Path         string            `json:"path,omitempty" yaml:"path,omitempty"`
-	JsonOp       string            `json:"jsonOp,omitempty" yaml:"jsonOp,omitempty"`
-
-	YAMLSupport bool `json:"yamlSupport,omitempty" yaml:"yamlSupport,omitempty"`
+	Target       *types.Selector `json:"target,omitempty" yaml:"target,omitempty"`
+	Path         string          `json:"path,omitempty" yaml:"path,omitempty"`
+	JsonOp       string          `json:"jsonOp,omitempty" yaml:"jsonOp,omitempty"`
 }
 
 func (p *PatchJson6902TransformerPlugin) Config(
@@ -74,35 +70,22 @@ func (p *PatchJson6902TransformerPlugin) Config(
 }
 
 func (p *PatchJson6902TransformerPlugin) Transform(m resmap.ResMap) error {
-	id := resid.NewResIdWithNamespace(
-		resid.Gvk{
-			Group:   p.Target.Group,
-			Version: p.Target.Version,
-			Kind:    p.Target.Kind,
-		},
-		p.Target.Name,
-		p.Target.Namespace,
-	)
-	obj, err := m.GetById(id)
+	if p.Target == nil {
+		return fmt.Errorf("must specify a target for patch %s", p.JsonOp)
+	}
+	resources, err := m.Select(*p.Target)
 	if err != nil {
 		return err
 	}
-	if !p.YAMLSupport {
-		rawObj, err := obj.MarshalJSON()
+	for _, res := range resources {
+		err = res.ApplyFilter(patchjson6902.Filter{
+			Patch: p.JsonOp,
+		})
 		if err != nil {
 			return err
 		}
-		modifiedObj, err := p.decodedPatch.Apply(rawObj)
-		if err != nil {
-			return errors.Wrapf(
-				err, "failed to apply json patch '%s'", p.JsonOp)
-		}
-		return obj.UnmarshalJSON(modifiedObj)
-	} else {
-		return filtersutil.ApplyToJSON(patchjson6902.Filter{
-			Patch: p.JsonOp,
-		}, obj)
 	}
+	return nil
 }
 
 func NewPatchJson6902TransformerPlugin() resmap.TransformerPlugin {

api/builtins/PatchStrategicMergeTransformer.go

@@ -6,26 +6,20 @@ package builtins
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/api/filters/patchstrategicmerge"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
 type PatchStrategicMergeTransformerPlugin struct {
-	h             *resmap.PluginHelpers
 	loadedPatches []*resource.Resource
 	Paths         []types.PatchStrategicMerge `json:"paths,omitempty" yaml:"paths,omitempty"`
 	Patches       string                      `json:"patches,omitempty" yaml:"patches,omitempty"`
-
-	YAMLSupport bool `json:"yamlSupport,omitempty" yaml:"yamlSupport,omitempty"`
 }
 
 func (p *PatchStrategicMergeTransformerPlugin) Config(
 	h *resmap.PluginHelpers, c []byte) (err error) {
-	p.h = h
 	err = yaml.Unmarshal(c, p)
 	if err != nil {
 		return err
@@ -35,13 +29,18 @@ func (p *PatchStrategicMergeTransformerPlugin) Config(
 	}
 	if len(p.Paths) != 0 {
 		for _, onePath := range p.Paths {
-			res, err := p.h.ResmapFactory().RF().SliceFromBytes([]byte(onePath))
+			// The following oddly attempts to interpret a path string as an
+			// actual patch (instead of as a path to a file containing a patch).
+			// All tests pass if this code is commented out.  This code should
+			// be deleted; the user should use the Patches field which
+			// exists for this purpose (inline patch declaration).
+			res, err := h.ResmapFactory().RF().SliceFromBytes([]byte(onePath))
 			if err == nil {
 				p.loadedPatches = append(p.loadedPatches, res...)
 				continue
 			}
-			res, err = p.h.ResmapFactory().RF().SliceFromPatches(
-				p.h.Loader(), []types.PatchStrategicMerge{onePath})
+			res, err = h.ResmapFactory().RF().SliceFromPatches(
+				h.Loader(), []types.PatchStrategicMerge{onePath})
 			if err != nil {
 				return err
 			}
@@ -49,7 +48,7 @@ func (p *PatchStrategicMergeTransformerPlugin) Config(
 		}
 	}
 	if p.Patches != "" {
-		res, err := p.h.ResmapFactory().RF().SliceFromBytes([]byte(p.Patches))
+		res, err := h.ResmapFactory().RF().SliceFromBytes([]byte(p.Patches))
 		if err != nil {
 			return err
 		}
@@ -60,44 +59,23 @@ func (p *PatchStrategicMergeTransformerPlugin) Config(
 		return fmt.Errorf(
 			"patch appears to be empty; files=%v, Patch=%s", p.Paths, p.Patches)
 	}
-	return err
-}
-
-func (p *PatchStrategicMergeTransformerPlugin) Transform(m resmap.ResMap) error {
-	patches, err := p.h.ResmapFactory().MergePatches(p.loadedPatches)
+	// Merge the patches, looking for conflicts.
+	_, err = h.ResmapFactory().ConflatePatches(p.loadedPatches)
 	if err != nil {
 		return err
 	}
-	for _, patch := range patches.Resources() {
+	return nil
+}
+
+func (p *PatchStrategicMergeTransformerPlugin) Transform(m resmap.ResMap) error {
+	for _, patch := range p.loadedPatches {
 		target, err := m.GetById(patch.OrgId())
 		if err != nil {
 			return err
 		}
-		if !p.YAMLSupport {
-			err = target.Patch(patch.Copy())
-			if err != nil {
-				return err
-			}
-			// remove the resource from resmap
-			// when the patch is to $patch: delete that target
-			if len(target.Map()) == 0 {
-				err = m.Remove(target.CurId())
-				if err != nil {
-					return err
-				}
-			}
-		} else {
-			patchCopy := patch.DeepCopy()
-			patchCopy.SetName(target.GetName())
-			patchCopy.SetNamespace(target.GetNamespace())
-			patchCopy.SetGvk(target.GetGvk())
-			node, err := filtersutil.GetRNode(patchCopy)
-			if err != nil {
-				return err
-			}
-			err = filtersutil.ApplyToJSON(patchstrategicmerge.Filter{
-				Patch: node,
-			}, target)
+		if err = m.ApplySmPatch(
+			resource.MakeIdSet([]*resource.Resource{target}), patch); err != nil {
+			return err
 		}
 	}
 	return nil

api/builtins/PatchTransformer.go

@@ -8,13 +8,10 @@ import (
 	"strings"
 
 	jsonpatch "github.com/evanphx/json-patch"
-	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/filters/patchjson6902"
-	"sigs.k8s.io/kustomize/api/filters/patchstrategicmerge"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -24,8 +21,6 @@ type PatchTransformerPlugin struct {
 	Path         string          `json:"path,omitempty" yaml:"path,omitempty"`
 	Patch        string          `json:"patch,omitempty" yaml:"patch,omitempty"`
 	Target       *types.Selector `json:"target,omitempty" yaml:"target,omitempty"`
-
-	YAMLSupport bool `json:"yamlSupport,omitempty" yaml:"yamlSupport,omitempty"`
 }
 
 func (p *PatchTransformerPlugin) Config(
@@ -43,7 +38,6 @@ func (p *PatchTransformerPlugin) Config(
 		return fmt.Errorf(
 			"patch and path can't be set at the same time\n%s", string(c))
 	}
-
 	if p.Path != "" {
 		loaded, loadErr := h.Loader().Load(p.Path)
 		if loadErr != nil {
@@ -73,11 +67,11 @@ func (p *PatchTransformerPlugin) Config(
 }
 
 func (p *PatchTransformerPlugin) Transform(m resmap.ResMap) error {
-	if p.loadedPatch != nil {
+	if p.loadedPatch == nil {
+		return p.transformJson6902(m, p.decodedPatch)
+	} else {
 		// The patch was a strategic merge patch
 		return p.transformStrategicMerge(m, p.loadedPatch)
-	} else {
-		return p.transformJson6902(m, p.decodedPatch)
 	}
 }
 
@@ -90,41 +84,13 @@ func (p *PatchTransformerPlugin) transformStrategicMerge(m resmap.ResMap, patch
 		if err != nil {
 			return err
 		}
-		return p.applySMPatch(target, patch)
+		return target.ApplySmPatch(patch)
 	}
-
-	resources, err := m.Select(*p.Target)
+	selected, err := m.Select(*p.Target)
 	if err != nil {
 		return err
 	}
-	for _, res := range resources {
-		patchCopy := patch.DeepCopy()
-		patchCopy.SetName(res.GetName())
-		patchCopy.SetNamespace(res.GetNamespace())
-		patchCopy.SetGvk(res.GetGvk())
-		err := p.applySMPatch(res, patchCopy)
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// applySMPatch applies the provided strategic merge patch to the
-// given resource. Depending on the value of YAMLSupport, it will either
-// use the legacy implementation or the kyaml-based solution.
-func (p *PatchTransformerPlugin) applySMPatch(resource, patch *resource.Resource) error {
-	if !p.YAMLSupport {
-		return resource.Patch(patch.Copy())
-	} else {
-		node, err := filtersutil.GetRNode(patch)
-		if err != nil {
-			return err
-		}
-		return filtersutil.ApplyToJSON(patchstrategicmerge.Filter{
-			Patch: node,
-		}, resource)
-	}
+	return m.ApplySmPatch(resource.MakeIdSet(selected), patch)
 }
 
 // transformJson6902 applies the provided json6902 patch
@@ -133,13 +99,15 @@ func (p *PatchTransformerPlugin) transformJson6902(m resmap.ResMap, patch jsonpa
 	if p.Target == nil {
 		return fmt.Errorf("must specify a target for patch %s", p.Patch)
 	}
-
 	resources, err := m.Select(*p.Target)
 	if err != nil {
 		return err
 	}
 	for _, res := range resources {
-		err = p.applyJson6902Patch(res, patch)
+		res.StorePreviousId()
+		err = res.ApplyFilter(patchjson6902.Filter{
+			Patch: p.Patch,
+		})
 		if err != nil {
 			return err
 		}
@@ -147,28 +115,6 @@ func (p *PatchTransformerPlugin) transformJson6902(m resmap.ResMap, patch jsonpa
 	return nil
 }
 
-// applyJson6902Patch applies the provided patch to the given resource.
-// Depending on the value of YAMLSupport, it will either
-// use the legacy implementation or the kyaml-based solution.
-func (p *PatchTransformerPlugin) applyJson6902Patch(resource *resource.Resource, patch jsonpatch.Patch) error {
-	if !p.YAMLSupport {
-		rawObj, err := resource.MarshalJSON()
-		if err != nil {
-			return err
-		}
-		modifiedObj, err := patch.Apply(rawObj)
-		if err != nil {
-			return errors.Wrapf(
-				err, "failed to apply json patch '%s'", p.Patch)
-		}
-		return resource.UnmarshalJSON(modifiedObj)
-	} else {
-		return filtersutil.ApplyToJSON(patchjson6902.Filter{
-			Patch: p.Patch,
-		}, resource)
-	}
-}
-
 // jsonPatchFromBytes loads a Json 6902 patch from
 // a bytes input
 func jsonPatchFromBytes(

api/builtins/PrefixSuffixTransformer.go

@@ -5,31 +5,27 @@ package builtins
 
 import (
 	"errors"
-	"fmt"
-
-	"sigs.k8s.io/kustomize/api/transform"
-	"sigs.k8s.io/kustomize/api/types"
 
+	"sigs.k8s.io/kustomize/api/filters/prefixsuffix"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/yaml"
 )
 
 // Add the given prefix and suffix to the field.
 type PrefixSuffixTransformerPlugin struct {
-	Prefix     string            `json:"prefix,omitempty" yaml:"prefix,omitempty"`
-	Suffix     string            `json:"suffix,omitempty" yaml:"suffix,omitempty"`
-	FieldSpecs []types.FieldSpec `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
+	Prefix     string        `json:"prefix,omitempty" yaml:"prefix,omitempty"`
+	Suffix     string        `json:"suffix,omitempty" yaml:"suffix,omitempty"`
+	FieldSpecs types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
 }
 
-// Not placed in a file yet due to lack of demand.
-var prefixSuffixFieldSpecsToSkip = []types.FieldSpec{
-	{
-		Gvk: resid.Gvk{Kind: "CustomResourceDefinition"},
-	},
-	{
-		Gvk: resid.Gvk{Group: "apiregistration.k8s.io", Kind: "APIService"},
-	},
+// A Gvk skip list for prefix/suffix modification.
+// hard coded for now - eventually should be part of config.
+var prefixSuffixFieldSpecsToSkip = types.FsSlice{
+	{Gvk: resid.Gvk{Kind: "CustomResourceDefinition"}},
+	{Gvk: resid.Gvk{Group: "apiregistration.k8s.io", Kind: "APIService"}},
+	{Gvk: resid.Gvk{Kind: "Namespace"}},
 }
 
 func (p *PrefixSuffixTransformerPlugin) Config(
@@ -48,45 +44,40 @@ func (p *PrefixSuffixTransformerPlugin) Config(
 }
 
 func (p *PrefixSuffixTransformerPlugin) Transform(m resmap.ResMap) error {
-
 	// Even if both the Prefix and Suffix are empty we want
 	// to proceed with the transformation. This allows to add contextual
 	// information to the resources (AddNamePrefix and AddNameSuffix).
-
 	for _, r := range m.Resources() {
+		// TODO: move this test into the filter (i.e. make a better filter)
 		if p.shouldSkip(r.OrgId()) {
-			// Don't change the actual definition
-			// of a CRD.
 			continue
 		}
 		id := r.OrgId()
 		// current default configuration contains
 		// only one entry: "metadata/name" with no GVK
-		for _, path := range p.FieldSpecs {
-			if !id.IsSelected(&path.Gvk) {
-				// With the currrent default configuration,
-				// because no Gvk is specified, so a wild
-				// card
+		for _, fs := range p.FieldSpecs {
+			// TODO: this is redundant to filter (but needed for now)
+			if !id.IsSelected(&fs.Gvk) {
 				continue
 			}
-
-			if smellsLikeANameChange(&path) {
+			// TODO: move this test into the filter.
+			if smellsLikeANameChange(&fs) {
 				// "metadata/name" is the only field.
 				// this will add a prefix and a suffix
 				// to the resource even if those are
 				// empty
+
 				r.AddNamePrefix(p.Prefix)
 				r.AddNameSuffix(p.Suffix)
+				if p.Prefix != "" || p.Suffix != "" {
+					r.StorePreviousId()
+				}
 			}
-
-			// the addPrefixSuffix method will not
-			// change the name if both the prefix and suffix
-			// are empty.
-			err := transform.MutateField(
-				r.Map(),
-				path.PathSlice(),
-				path.CreateIfNotPresent,
-				p.addPrefixSuffix)
+			err := r.ApplyFilter(prefixsuffix.Filter{
+				Prefix:    p.Prefix,
+				Suffix:    p.Suffix,
+				FieldSpec: fs,
+			})
 			if err != nil {
 				return err
 			}
@@ -99,8 +90,7 @@ func smellsLikeANameChange(fs *types.FieldSpec) bool {
 	return fs.Path == "metadata/name"
 }
 
-func (p *PrefixSuffixTransformerPlugin) shouldSkip(
-	id resid.ResId) bool {
+func (p *PrefixSuffixTransformerPlugin) shouldSkip(id resid.ResId) bool {
 	for _, path := range prefixSuffixFieldSpecsToSkip {
 		if id.IsSelected(&path.Gvk) {
 			return true
@@ -109,15 +99,6 @@ func (p *PrefixSuffixTransformerPlugin) shouldSkip(
 	return false
 }
 
-func (p *PrefixSuffixTransformerPlugin) addPrefixSuffix(
-	in interface{}) (interface{}, error) {
-	s, ok := in.(string)
-	if !ok {
-		return nil, fmt.Errorf("%#v is expected to be %T", in, s)
-	}
-	return fmt.Sprintf("%s%s%s", p.Prefix, s, p.Suffix), nil
-}
-
 func NewPrefixSuffixTransformerPlugin() resmap.TransformerPlugin {
 	return &PrefixSuffixTransformerPlugin{}
 }

api/builtins/ReplicaCountTransformer.go

@@ -6,8 +6,7 @@ package builtins
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/api/transform"
-
+	"sigs.k8s.io/kustomize/api/filters/replicacount"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
@@ -30,18 +29,22 @@ func (p *ReplicaCountTransformerPlugin) Config(
 
 func (p *ReplicaCountTransformerPlugin) Transform(m resmap.ResMap) error {
 	found := false
-	for i, replicaSpec := range p.FieldSpecs {
-		matcher := p.createMatcher(i)
-		matchOriginal := m.GetMatchingResourcesByOriginalId(matcher)
-		matchCurrent := m.GetMatchingResourcesByCurrentId(matcher)
-
-		for _, res := range append(matchOriginal, matchCurrent...) {
+	for _, fs := range p.FieldSpecs {
+		matcher := p.createMatcher(fs)
+		resList := m.GetMatchingResourcesByAnyId(matcher)
+		if len(resList) > 0 {
 			found = true
-			err := transform.MutateField(
-				res.Map(), replicaSpec.PathSlice(),
-				replicaSpec.CreateIfNotPresent, p.addReplicas)
-			if err != nil {
-				return err
+			for _, r := range resList {
+				// There are redundant checks in the filter
+				// that we'll live with until resolution of
+				// https://github.com/kubernetes-sigs/kustomize/issues/2506
+				err := r.ApplyFilter(replicacount.Filter{
+					Replica:   p.Replica,
+					FieldSpec: fs,
+				})
+				if err != nil {
+					return err
+				}
 			}
 		}
 	}
@@ -59,30 +62,12 @@ func (p *ReplicaCountTransformerPlugin) Transform(m resmap.ResMap) error {
 }
 
 // Match Replica.Name and FieldSpec
-func (p *ReplicaCountTransformerPlugin) createMatcher(i int) resmap.IdMatcher {
+func (p *ReplicaCountTransformerPlugin) createMatcher(fs types.FieldSpec) resmap.IdMatcher {
 	return func(r resid.ResId) bool {
-		return r.Name == p.Replica.Name &&
-			r.Gvk.IsSelected(&p.FieldSpecs[i].Gvk)
+		return r.Name == p.Replica.Name && r.Gvk.IsSelected(&fs.Gvk)
 	}
 }
 
-func (p *ReplicaCountTransformerPlugin) addReplicas(in interface{}) (interface{}, error) {
-	switch m := in.(type) {
-	case int64:
-		// Was already in the field.
-	case map[string]interface{}:
-		if len(m) != 0 {
-			// A map was already in the replicas field, don't want to
-			// discard this data silently.
-			return nil, fmt.Errorf("%#v is expected to be %T", in, m)
-		}
-		// Just got added, default type is map, but we can return anything.
-	default:
-		return nil, fmt.Errorf("%#v is expected to be %T", in, m)
-	}
-	return p.Replica.Count, nil
-}
-
 func NewReplicaCountTransformerPlugin() resmap.TransformerPlugin {
 	return &ReplicaCountTransformerPlugin{}
 }

api/builtins/ValueAddTransformer.go

@@ -13,7 +13,6 @@ import (
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -119,15 +118,15 @@ func (p *ValueAddTransformerPlugin) Transform(m resmap.ResMap) (err error) {
 		// TODO: consider t.NotSelector if implemented
 		for _, res := range resources {
 			if t.FieldPath == types.MetadataNamespacePath {
-				err = filtersutil.ApplyToJSON(namespace.Filter{
+				err = res.ApplyFilter(namespace.Filter{
 					Namespace: p.Value,
-				}, res)
+				})
 			} else {
-				err = filtersutil.ApplyToJSON(valueadd.Filter{
+				err = res.ApplyFilter(valueadd.Filter{
 					Value:            p.Value,
 					FieldPath:        t.FieldPath,
 					FilePathPosition: t.FilePathPosition,
-				}, res)
+				})
 			}
 			if err != nil {
 				return err

api/filesys/confirmeddir_test.go

@@ -4,6 +4,7 @@
 package filesys_test
 
 import (
+	"os"
 	"path/filepath"
 	"testing"
 
@@ -98,6 +99,7 @@ func TestNewTempConfirmDir(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
+	defer os.RemoveAll(string(tmp))
 
 	delinked, err := filepath.EvalSymlinks(string(tmp))
 	if err != nil {

api/filters/annotations/annotations.go

@@ -24,15 +24,16 @@ type Filter struct {
 var _ kio.Filter = Filter{}
 
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
-	keys := filtersutil.SortedMapKeys(f.Annotations)
+	keys := yaml.SortedMapKeys(f.Annotations)
 	_, err := kio.FilterAll(yaml.FilterFunc(
 		func(node *yaml.RNode) (*yaml.RNode, error) {
 			for _, k := range keys {
 				if err := node.PipeE(fsslice.Filter{
-					FsSlice:    f.FsSlice,
-					SetValue:   fsslice.SetEntry(k, f.Annotations[k], yaml.StringTag),
+					FsSlice: f.FsSlice,
+					SetValue: filtersutil.SetEntry(
+						k, f.Annotations[k], yaml.NodeTagString),
 					CreateKind: yaml.MappingNode, // Annotations are MappingNodes.
-					CreateTag:  "!!map",
+					CreateTag:  yaml.NodeTagMap,
 				}); err != nil {
 					return nil, err
 				}

api/filters/annotations/example_test.go

@@ -28,7 +28,9 @@ metadata:
 `)}},
 		Filters: []kio.Filter{Filter{
 			Annotations: map[string]string{
-				"foo": "bar",
+				"foo":          "bar",
+				"booleanValue": "true",
+				"numberValue":  "42",
 			},
 			FsSlice: fss,
 		}},
@@ -44,12 +46,16 @@ metadata:
 	// metadata:
 	//   name: instance
 	//   annotations:
+	//     booleanValue: "true"
 	//     foo: bar
+	//     numberValue: "42"
 	// ---
 	// apiVersion: example.com/v1
 	// kind: Bar
 	// metadata:
 	//   name: instance
 	//   annotations:
+	//     booleanValue: "true"
 	//     foo: bar
+	//     numberValue: "42"
 }

api/filters/fieldspec/doc.go

@@ -0,0 +1,6 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+// Package fieldspec contains a yaml.Filter to modify a resource
+// that matches the FieldSpec.
+package fieldspec

api/filters/fieldspec/example_test.go

@@ -0,0 +1,61 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package fieldspec_test
+
+import (
+	"bytes"
+	"log"
+	"os"
+
+	. "sigs.k8s.io/kustomize/api/filters/fieldspec"
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/kio"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+func ExampleFilter() {
+	in := &kio.ByteReader{
+		Reader: bytes.NewBufferString(`
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: instance
+`),
+	}
+	fltr := Filter{
+		CreateKind: yaml.ScalarNode,
+		SetValue:   filtersutil.SetScalar("green"),
+		FieldSpec:  types.FieldSpec{Path: "a/b", CreateIfNotPresent: true},
+	}
+
+	err := kio.Pipeline{
+		Inputs:  []kio.Reader{in},
+		Filters: []kio.Filter{kio.FilterAll(fltr)},
+		Outputs: []kio.Writer{kio.ByteWriter{Writer: os.Stdout}},
+	}.Execute()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// Output:
+	// apiVersion: example.com/v1
+	// kind: Foo
+	// metadata:
+	//   name: instance
+	// a:
+	//   b: green
+	// ---
+	// apiVersion: example.com/v1
+	// kind: Bar
+	// metadata:
+	//   name: instance
+	// a:
+	//   b: green
+}

api/filters/fieldspec/fieldspec.go

@@ -1,24 +1,38 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package fsslice
+package fieldspec
 
 import (
+	"fmt"
 	"strings"
 
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
+	"sigs.k8s.io/kustomize/api/internal/utils"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/errors"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
-// fieldSpecFilter applies a single fieldSpec to a single object
-// fieldSpecFilter stores internal state and should not be reused
-type fieldSpecFilter struct {
+var _ yaml.Filter = Filter{}
+
+// Filter possibly mutates its object argument using a FieldSpec.
+// If the object matches the FieldSpec, and the node found
+// by following the fieldSpec's path is non-null, this filter calls
+// the setValue function on the node at the end of the path.
+// If any part of the path doesn't exist, the filter returns
+// without doing anything and without error, unless it was set
+// to create the path. If set to create, it creates a tree of maps
+// along the path, and the leaf node gets the setValue called on it.
+// Error on GVK mismatch, empty or poorly formed path.
+// Filter expect kustomize style paths, not JSON paths.
+// Filter stores internal state and should not be reused
+type Filter struct {
 	// FieldSpec contains the path to the value to set.
 	FieldSpec types.FieldSpec `yaml:"fieldSpec"`
 
 	// Set the field using this function
-	SetValue SetFn
+	SetValue filtersutil.SetFn
 
 	// CreateKind defines the type of node to create if the field is not found
 	CreateKind yaml.Kind
@@ -29,69 +43,87 @@ type fieldSpecFilter struct {
 	path []string
 }
 
-func (fltr fieldSpecFilter) Filter(obj *yaml.RNode) (*yaml.RNode, error) {
+func (fltr Filter) Filter(obj *yaml.RNode) (*yaml.RNode, error) {
 	// check if the FieldSpec applies to the object
 	if match, err := isMatchGVK(fltr.FieldSpec, obj); !match || err != nil {
 		return obj, errors.Wrap(err)
 	}
-	fltr.path = strings.Split(fltr.FieldSpec.Path, "/")
-	if err := fltr.filter(obj); err != nil {
+	fltr.path = utils.PathSplitter(fltr.FieldSpec.Path)
+	err := fltr.filter(obj)
+	if err != nil {
 		s, _ := obj.String()
 		return nil, errors.WrapPrefixf(err,
-			"obj %v at path %v", s, fltr.FieldSpec.Path)
+			"considering field '%s' of object\n%v", fltr.FieldSpec.Path, s)
 	}
 	return obj, nil
 }
 
-func (fltr fieldSpecFilter) filter(obj *yaml.RNode) error {
+// Recursively called.
+func (fltr Filter) filter(obj *yaml.RNode) error {
 	if len(fltr.path) == 0 {
 		// found the field -- set its value
 		return fltr.SetValue(obj)
 	}
+	if obj.IsTaggedNull() || obj.IsNil() {
+		return nil
+	}
 	switch obj.YNode().Kind {
 	case yaml.SequenceNode:
-		return fltr.seq(obj)
+		return fltr.handleSequence(obj)
 	case yaml.MappingNode:
-		return fltr.field(obj)
+		return fltr.handleMap(obj)
+	case yaml.AliasNode:
+		return fltr.filter(yaml.NewRNode(obj.YNode().Alias))
+	default:
+		return errors.Errorf("expected sequence or mapping node")
 	}
-	// not found -- this might be an error since the type doesn't match
-
-	return errors.Errorf("unsupported yaml node")
 }
 
-// field calls filter on the field matching the next path element
-func (fltr fieldSpecFilter) field(obj *yaml.RNode) error {
+// handleMap calls filter on the map field matching the next path element
+func (fltr Filter) handleMap(obj *yaml.RNode) error {
 	fieldName, isSeq := isSequenceField(fltr.path[0])
-
+	if fieldName == "" {
+		return fmt.Errorf("cannot set or create an empty field name")
+	}
 	// lookup the field matching the next path element
-	var lookupField yaml.Filter
+	var operation yaml.Filter
 	var kind yaml.Kind
-	var tag string
+	tag := yaml.NodeTagEmpty
 	switch {
 	case !fltr.FieldSpec.CreateIfNotPresent || fltr.CreateKind == 0 || isSeq:
-		// dont' create the field if we don't find it
-		lookupField = yaml.Lookup(fieldName)
+		// don't create the field if we don't find it
+		operation = yaml.Lookup(fieldName)
+		if isSeq {
+			// The query path thinks this field should be a sequence;
+			// accept this hint for use later if the tag is NodeTagNull.
+			kind = yaml.SequenceNode
+		}
 	case len(fltr.path) <= 1:
 		// create the field if it is missing: use the provided node kind
-		lookupField = yaml.LookupCreate(fltr.CreateKind, fieldName)
+		operation = yaml.LookupCreate(fltr.CreateKind, fieldName)
 		kind = fltr.CreateKind
 		tag = fltr.CreateTag
 	default:
 		// create the field if it is missing: must be a mapping node
-		lookupField = yaml.LookupCreate(yaml.MappingNode, fieldName)
+		operation = yaml.LookupCreate(yaml.MappingNode, fieldName)
 		kind = yaml.MappingNode
-		tag = "!!map"
+		tag = yaml.NodeTagMap
 	}
 
 	// locate (or maybe create) the field
-	field, err := obj.Pipe(lookupField)
-	if err != nil || field == nil {
+	field, err := obj.Pipe(operation)
+	if err != nil {
 		return errors.WrapPrefixf(err, "fieldName: %s", fieldName)
 	}
+	if field == nil {
+		// No error if field not found.
+		return nil
+	}
 
-	// if the value exists, but is null, then change it to the creation type
+	// if the value exists, but is null and kind is set,
+	// then change it to the creation type
 	// TODO: update yaml.LookupCreate to support this
-	if field.YNode().Tag == "!!null" {
+	if field.YNode().Tag == yaml.NodeTagNull && yaml.IsCreate(kind) {
 		field.YNode().Kind = kind
 		field.YNode().Tag = tag
 	}
@@ -104,9 +136,9 @@ func (fltr fieldSpecFilter) field(obj *yaml.RNode) error {
 }
 
 // seq calls filter on all sequence elements
-func (fltr fieldSpecFilter) seq(obj *yaml.RNode) error {
+func (fltr Filter) handleSequence(obj *yaml.RNode) error {
 	if err := obj.VisitElements(func(node *yaml.RNode) error {
-		// recurse on each element -- re-allocating a fieldSpecFilter is
+		// recurse on each element -- re-allocating a Filter is
 		// not strictly required, but is more consistent with field
 		// and less likely to have side effects
 		// keep the entire path -- it does not contain parts for sequences
@@ -115,16 +147,14 @@ func (fltr fieldSpecFilter) seq(obj *yaml.RNode) error {
 		return errors.WrapPrefixf(err,
 			"visit traversal on path: %v", fltr.path)
 	}
-
 	return nil
 }
 
 // isSequenceField returns true if the path element is for a sequence field.
 // isSequence also returns the path element with the '[]' suffix trimmed
 func isSequenceField(name string) (string, bool) {
-	isSeq := strings.HasSuffix(name, "[]")
-	name = strings.TrimSuffix(name, "[]")
-	return name, isSeq
+	shorter := strings.TrimSuffix(name, "[]")
+	return shorter, shorter != name
 }
 
 // isMatchGVK returns true if the fs.GVK matches the obj GVK.

api/filters/fieldspec/fieldspec_test.go

@@ -0,0 +1,564 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package fieldspec_test
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/api/filters/fieldspec"
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
+	"sigs.k8s.io/kustomize/kyaml/kio"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+func TestFilter_Filter(t *testing.T) {
+	testCases := map[string]struct {
+		input     string
+		expected  string
+		filter    fieldspec.Filter
+		fieldSpec string
+		error     string
+	}{
+		"path not found": {
+			fieldSpec: `
+path: a/b
+group: foo
+kind: Bar
+`,
+			input: `
+apiVersion: foo
+kind: Bar
+xxx:
+`,
+			expected: `
+apiVersion: foo
+kind: Bar
+xxx:
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+		"empty path": {
+			fieldSpec: `
+group: foo
+kind: Bar
+`,
+			input: `
+apiVersion: foo
+kind: Bar
+xxx:
+`,
+			expected: `
+apiVersion: foo
+kind: Bar
+xxx:
+`,
+			error: `considering field '' of object
+apiVersion: foo
+kind: Bar
+xxx:
+: cannot set or create an empty field name`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		"update": {
+			fieldSpec: `
+path: a/b
+group: foo
+kind: Bar
+`,
+			input: `
+apiVersion: foo/v1beta1
+kind: Bar
+a:
+  b: c
+`,
+			expected: `
+apiVersion: foo/v1beta1
+kind: Bar
+a:
+  b: e
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		"update-kind-not-match": {
+			fieldSpec: `
+path: a/b
+group: foo
+kind: Bar1
+`,
+			input: `
+apiVersion: foo/v1beta1
+kind: Bar2
+a:
+  b: c
+`,
+			expected: `
+apiVersion: foo/v1beta1
+kind: Bar2
+a:
+  b: c
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		"update-group-not-match": {
+			fieldSpec: `
+path: a/b
+group: foo1
+kind: Bar
+`,
+			input: `
+apiVersion: foo2/v1beta1
+kind: Bar
+a:
+  b: c
+`,
+			expected: `
+apiVersion: foo2/v1beta1
+kind: Bar
+a:
+  b: c
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		"update-version-not-match": {
+			fieldSpec: `
+path: a/b
+group: foo
+version: v1beta1
+kind: Bar
+`,
+			input: `
+apiVersion: foo/v1beta2
+kind: Bar
+a:
+  b: c
+`,
+			expected: `
+apiVersion: foo/v1beta2
+kind: Bar
+a:
+  b: c
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		"bad-version": {
+			fieldSpec: `
+path: a/b
+group: foo
+version: v1beta1
+kind: Bar
+`,
+			input: `
+apiVersion: foo/v1beta2/something
+kind: Bar
+a:
+  b: c
+`,
+			expected: `
+apiVersion: foo/v1beta2/something
+kind: Bar
+a:
+  b: c
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		"bad-meta": {
+			fieldSpec: `
+path: a/b
+group: foo
+version: v1beta1
+kind: Bar
+`,
+			input: `
+a:
+  b: c
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+			error: "missing Resource metadata",
+		},
+
+		"miss-match-type": {
+			fieldSpec: `
+path: a/b/c
+kind: Bar
+`,
+			input: `
+kind: Bar
+a:
+  b: a
+`,
+			error: `considering field 'a/b/c' of object
+kind: Bar
+a:
+  b: a
+: expected sequence or mapping node`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		"add": {
+			fieldSpec: `
+path: a/b/c/d
+group: foo
+create: true
+kind: Bar
+`,
+			input: `
+apiVersion: foo/v1beta1
+kind: Bar
+a: {}
+`,
+			expected: `
+apiVersion: foo/v1beta1
+kind: Bar
+a: {b: {c: {d: e}}}
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+
+		"update-in-sequence": {
+			fieldSpec: `
+path: a/b[]/c/d
+group: foo
+kind: Bar
+`,
+			input: `
+apiVersion: foo/v1beta1
+kind: Bar
+a:
+  b:
+  - c:
+      d: a
+`,
+			expected: `
+apiVersion: foo/v1beta1
+kind: Bar
+a:
+  b:
+  - c:
+      d: e
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		// Don't create a sequence
+		"empty-sequence-no-create": {
+			fieldSpec: `
+path: a/b[]/c/d
+group: foo
+create: true
+kind: Bar
+`,
+			input: `
+apiVersion: foo/v1beta1
+kind: Bar
+a: {}
+`,
+			expected: `
+apiVersion: foo/v1beta1
+kind: Bar
+a: {}
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+
+		// Create a new field for an element in a sequence
+		"empty-sequence-create": {
+			fieldSpec: `
+path: a/b[]/c/d
+group: foo
+create: true
+kind: Bar
+`,
+			input: `
+apiVersion: foo/v1beta1
+kind: Bar
+a:
+  b:
+  - c: {}
+`,
+			expected: `
+apiVersion: foo/v1beta1
+kind: Bar
+a:
+  b:
+  - c: {d: e}
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+
+		"group v1": {
+			fieldSpec: `
+path: a/b
+group: v1
+create: true
+kind: Bar
+`,
+			input: `
+apiVersion: v1
+kind: Bar
+`,
+			expected: `
+apiVersion: v1
+kind: Bar
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+
+		"version v1": {
+			fieldSpec: `
+path: a/b
+version: v1
+create: true
+kind: Bar
+`,
+			input: `
+apiVersion: v1
+kind: Bar
+`,
+			expected: `
+apiVersion: v1
+kind: Bar
+a:
+  b: e
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+
+		"successfully set field on array entry no sequence hint": {
+			fieldSpec: `
+path: spec/containers/image
+version: v1
+kind: Bar
+`,
+			input: `
+apiVersion: v1
+kind: Bar
+spec:
+  containers:
+  - image: foo
+`,
+			expected: `
+apiVersion: v1
+kind: Bar
+spec:
+  containers:
+  - image: bar
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+
+		"successfully set field on array entry with sequence hint": {
+			fieldSpec: `
+path: spec/containers[]/image
+version: v1
+kind: Bar
+`,
+			input: `
+apiVersion: v1
+kind: Bar
+spec:
+  containers:
+  - image: foo
+`,
+			expected: `
+apiVersion: v1
+kind: Bar
+spec:
+  containers:
+  - image: bar
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+		"failure to set field on array entry with sequence hint in path": {
+			fieldSpec: `
+path: spec/containers[]/image
+version: v1
+kind: Bar
+`,
+			input: `
+apiVersion: v1
+kind: Bar
+spec:
+  containers:
+`,
+			expected: `
+apiVersion: v1
+kind: Bar
+spec:
+  containers: []
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+
+		"failure to set field on array entry, no sequence hint in path": {
+			fieldSpec: `
+path: spec/containers/image
+version: v1
+kind: Bar
+`,
+			input: `
+apiVersion: v1
+kind: Bar
+spec:
+  containers:
+`,
+			expected: `
+apiVersion: v1
+kind: Bar
+spec:
+  containers:
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+		"fieldname with slash '/'": {
+			fieldSpec: `
+path: a/b\/c/d
+version: v1
+kind: Bar
+`,
+			input: `
+apiVersion: v1
+kind: Bar
+a:
+  b/c:
+    d: foo
+`,
+			expected: `
+apiVersion: v1
+kind: Bar
+a:
+  b/c:
+    d: bar
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+		"fieldname with multiple '/'": {
+			fieldSpec: `
+path: a/b\/c/d\/e/f
+version: v1
+kind: Bar
+`,
+			input: `
+apiVersion: v1
+kind: Bar
+a:
+  b/c:
+    d/e:
+      f: foo
+`,
+			expected: `
+apiVersion: v1
+kind: Bar
+a:
+  b/c:
+    d/e:
+      f: bar
+`,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
+		},
+	}
+
+	for n := range testCases {
+		tc := testCases[n]
+		t.Run(n, func(t *testing.T) {
+			err := yaml.Unmarshal([]byte(tc.fieldSpec), &tc.filter.FieldSpec)
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+
+			out := &bytes.Buffer{}
+			rw := &kio.ByteReadWriter{
+				Reader:                bytes.NewBufferString(tc.input),
+				Writer:                out,
+				OmitReaderAnnotations: true,
+			}
+
+			// run the filter
+			err = kio.Pipeline{
+				Inputs:  []kio.Reader{rw},
+				Filters: []kio.Filter{kio.FilterAll(tc.filter)},
+				Outputs: []kio.Writer{rw},
+			}.Execute()
+			if tc.error != "" {
+				if !assert.EqualError(t, err, tc.error) {
+					t.FailNow()
+				}
+				// stop rest of test
+				return
+			}
+
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+
+			// check results
+			if !assert.Equal(t,
+				strings.TrimSpace(tc.expected),
+				strings.TrimSpace(out.String())) {
+				t.FailNow()
+			}
+		})
+	}
+}

api/filters/fieldspec/gvk.go

@@ -1,6 +1,6 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
-package fsslice
+package fieldspec
 
 import (
 	"strings"

api/filters/fieldspec/gvk_test.go

@@ -1,6 +1,6 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
-package fsslice
+package fieldspec
 
 import (
 	"strings"

api/filters/filtersutil/filtersutil.go

@@ -1,21 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package filtersutil
-
-import (
-	"sort"
-)
-
-// SortedMapKeys returns a sorted slice of keys to the given map.
-// Writing this function never gets old.
-func SortedMapKeys(m map[string]string) []string {
-	keys := make([]string, len(m))
-	i := 0
-	for k := range m {
-		keys[i] = k
-		i++
-	}
-	sort.Strings(keys)
-	return keys
-}

api/filters/filtersutil/setters.go

@@ -0,0 +1,33 @@
+package filtersutil
+
+import (
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+// SetFn is a function that accepts an RNode to possibly modify.
+type SetFn func(*yaml.RNode) error
+
+// SetScalar returns a SetFn to set a scalar value
+func SetScalar(value string) SetFn {
+	return func(node *yaml.RNode) error {
+		return node.PipeE(yaml.FieldSetter{StringValue: value})
+	}
+}
+
+// SetEntry returns a SetFn to set an entry in a map
+func SetEntry(key, value, tag string) SetFn {
+	n := &yaml.Node{
+		Kind:  yaml.ScalarNode,
+		Value: value,
+		Tag:   tag,
+	}
+	if tag == yaml.NodeTagString && yaml.IsYaml1_1NonString(n) {
+		n.Style = yaml.DoubleQuotedStyle
+	}
+	return func(node *yaml.RNode) error {
+		return node.PipeE(yaml.FieldSetter{
+			Name:  key,
+			Value: yaml.NewRNode(n),
+		})
+	}
+}

api/filters/fsslice/doc.go

@@ -1,6 +1,6 @@
 // Copyright 2020 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-// Package fsslice contains a yaml.Filter to modify a resource using an
-// FsSlice to identify fields to be updated within the resource.
+// Package fsslice contains a yaml.Filter to modify a resource if
+// it matches one or more FieldSpec entries.
 package fsslice

api/filters/fsslice/example_test.go

@@ -8,6 +8,7 @@ import (
 	"log"
 	"os"
 
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/filters/fsslice"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/kio"
@@ -30,7 +31,7 @@ metadata:
 	}
 	fltr := fsslice.Filter{
 		CreateKind: yaml.ScalarNode,
-		SetValue:   fsslice.SetScalar("green"),
+		SetValue:   filtersutil.SetScalar("green"),
 		FsSlice: []types.FieldSpec{
 			{Path: "a/b", CreateIfNotPresent: true},
 		},

api/filters/fsslice/fsslice.go

@@ -4,48 +4,22 @@
 package fsslice
 
 import (
+	"sigs.k8s.io/kustomize/api/filters/fieldspec"
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
-// SetFn sets a value
-type SetFn func(*yaml.RNode) error
-
-// SetScalar returns a SetFn to set a scalar value
-func SetScalar(value string) SetFn {
-	return func(node *yaml.RNode) error {
-		return node.PipeE(yaml.FieldSetter{StringValue: value})
-	}
-}
-
-// SetEntry returns a SetFn to set an entry in a map
-func SetEntry(key, value, tag string) SetFn {
-	n := &yaml.Node{
-		Kind:  yaml.ScalarNode,
-		Value: value,
-		Tag:   tag,
-	}
-	if tag == yaml.StringTag && yaml.IsYaml1_1NonString(n) {
-		n.Style = yaml.DoubleQuotedStyle
-	}
-	return func(node *yaml.RNode) error {
-		return node.PipeE(yaml.FieldSetter{
-			Name:  key,
-			Value: yaml.NewRNode(n),
-		})
-	}
-
-}
-
 var _ yaml.Filter = Filter{}
 
-// Filter uses an FsSlice to modify fields on a single object
+// Filter ranges over an FsSlice to modify fields on a single object.
+// An FsSlice is a range of FieldSpecs. A FieldSpec is a GVK plus a path.
 type Filter struct {
 	// FieldSpecList list of FieldSpecs to set
 	FsSlice types.FsSlice `yaml:"fsSlice"`
 
 	// SetValue is called on each field that matches one of the FieldSpecs
-	SetValue SetFn
+	SetValue filtersutil.SetFn
 
 	// CreateKind is used to create fields that do not exist
 	CreateKind yaml.Kind
@@ -59,7 +33,7 @@ func (fltr Filter) Filter(obj *yaml.RNode) (*yaml.RNode, error) {
 		// apply this FieldSpec
 		// create a new filter for each iteration because they
 		// store internal state about the field paths
-		_, err := (&fieldSpecFilter{
+		_, err := (&fieldspec.Filter{
 			FieldSpec:  fltr.FsSlice[i],
 			SetValue:   fltr.SetValue,
 			CreateKind: fltr.CreateKind,

api/filters/fsslice/fsslice_test.go

@@ -9,335 +9,77 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"sigs.k8s.io/kustomize/api/filters/fsslice"
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
+	. "sigs.k8s.io/kustomize/api/filters/fsslice"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 type TestCase struct {
-	name     string
 	input    string
 	expected string
-	filter   fsslice.Filter
+	filter   Filter
 	fsSlice  string
 	error    string
 }
 
-var tests = []TestCase{
-	{
-		name: "update",
+var tests = map[string]TestCase{
+	"empty": {
 		fsSlice: `
-- path: a/b
-  group: foo
-  kind: Bar
 `,
 		input: `
-apiVersion: foo/v1beta1
+apiVersion: foo/v1
 kind: Bar
-a:
-  b: c
 `,
 		expected: `
-apiVersion: foo/v1beta1
+apiVersion: foo/v1
 kind: Bar
-a:
-  b: e
 `,
-		filter: fsslice.Filter{
-			SetValue: fsslice.SetScalar("e"),
-		},
-	},
-
-	{
-		name: "update-kind-not-match",
-		fsSlice: `
-- path: a/b
-  group: foo
-  kind: Bar1
-`,
-		input: `
-apiVersion: foo/v1beta1
-kind: Bar2
-a:
-  b: c
-`,
-		expected: `
-apiVersion: foo/v1beta1
-kind: Bar2
-a:
-  b: c
-`,
-		filter: fsslice.Filter{
-			SetValue: fsslice.SetScalar("e"),
-		},
-	},
-
-	{
-		name: "update-group-not-match",
-		fsSlice: `
-- path: a/b
-  group: foo1
-  kind: Bar
-`,
-		input: `
-apiVersion: foo2/v1beta1
-kind: Bar
-a:
-  b: c
-`,
-		expected: `
-apiVersion: foo2/v1beta1
-kind: Bar
-a:
-  b: c
-`,
-		filter: fsslice.Filter{
-			SetValue: fsslice.SetScalar("e"),
-		},
-	},
-
-	{
-		name: "update-version-not-match",
-		fsSlice: `
-- path: a/b
-  group: foo
-  version: v1beta1
-  kind: Bar
-`,
-		input: `
-apiVersion: foo/v1beta2
-kind: Bar
-a:
-  b: c
-`,
-		expected: `
-apiVersion: foo/v1beta2
-kind: Bar
-a:
-  b: c
-`,
-		filter: fsslice.Filter{
-			SetValue: fsslice.SetScalar("e"),
-		},
-	},
-
-	{
-		name: "bad-version",
-		fsSlice: `
-- path: a/b
-  group: foo
-  version: v1beta1
-  kind: Bar
-`,
-		input: `
-apiVersion: foo/v1beta2/something
-kind: Bar
-a:
-  b: c
-`,
-		expected: `
-apiVersion: foo/v1beta2/something
-kind: Bar
-a:
-  b: c
-`,
-		filter: fsslice.Filter{
-			SetValue: fsslice.SetScalar("e"),
-		},
-	},
-
-	{
-		name: "bad-meta",
-		fsSlice: `
-- path: a/b
-  group: foo
-  version: v1beta1
-  kind: Bar
-`,
-		input: `
-a:
-  b: c
-`,
-		filter: fsslice.Filter{
-			SetValue: fsslice.SetScalar("e"),
-		},
-		error: "missing Resource metadata",
-	},
-
-	{
-		name: "miss-match-type",
-		fsSlice: `
-- path: a/b/c
-  kind: Bar
-`,
-		input: `
-kind: Bar
-a:
-  b: a
-`,
-		error: "obj kind: Bar\na:\n  b: a\n at path a/b/c: unsupported yaml node",
-		filter: fsslice.Filter{
-			SetValue: fsslice.SetScalar("e"),
-		},
-	},
-
-	{
-		name: "add",
-		fsSlice: `
-- path: a/b/c/d
-  group: foo
-  create: true
-  kind: Bar
-`,
-		input: `
-apiVersion: foo/v1beta1
-kind: Bar
-a: {}
-`,
-		expected: `
-apiVersion: foo/v1beta1
-kind: Bar
-a: {b: {c: {d: e}}}
-`,
-		filter: fsslice.Filter{
-			SetValue:   fsslice.SetScalar("e"),
+		filter: Filter{
+			SetValue:   filtersutil.SetScalar("e"),
 			CreateKind: yaml.ScalarNode,
 		},
 	},
-
-	{
-		name: "update-in-sequence",
-		fsSlice: `
-- path: a/b[]/c/d
-  group: foo
-  kind: Bar
-`,
-		input: `
-apiVersion: foo/v1beta1
-kind: Bar
-a:
-  b:
-  - c:
-      d: a
-`,
-		expected: `
-apiVersion: foo/v1beta1
-kind: Bar
-a:
-  b:
-  - c:
-      d: e
-`,
-		filter: fsslice.Filter{
-			SetValue: fsslice.SetScalar("e"),
-		},
-	},
-
-	// Don't create a sequence
-	{
-		name: "empty-sequence-no-create",
-		fsSlice: `
-- path: a/b[]/c/d
-  group: foo
-  create: true
-  kind: Bar
-`,
-		input: `
-apiVersion: foo/v1beta1
-kind: Bar
-a: {}
-`,
-		expected: `
-apiVersion: foo/v1beta1
-kind: Bar
-a: {}
-`,
-		filter: fsslice.Filter{
-			SetValue:   fsslice.SetScalar("e"),
-			CreateKind: yaml.ScalarNode,
-		},
-	},
-
-	// Create a new field for an element in a sequence
-	{
-		name: "empty-sequence-create",
-		fsSlice: `
-- path: a/b[]/c/d
-  group: foo
-  create: true
-  kind: Bar
-`,
-		input: `
-apiVersion: foo/v1beta1
-kind: Bar
-a:
-  b:
-  - c: {}
-`,
-		expected: `
-apiVersion: foo/v1beta1
-kind: Bar
-a:
-  b:
-  - c: {d: e}
-`,
-		filter: fsslice.Filter{
-			SetValue:   fsslice.SetScalar("e"),
-			CreateKind: yaml.ScalarNode,
-		},
-	},
-
-	{
-		name: "group v1",
+	"two": {
 		fsSlice: `
 - path: a/b
-  group: v1
+  group: foo
+  version: v1
   create: true
   kind: Bar
-`,
-		input: `
-apiVersion: v1
-kind: Bar
-`,
-		expected: `
-apiVersion: v1
-kind: Bar
-`,
-		filter: fsslice.Filter{
-			SetValue:   fsslice.SetScalar("e"),
-			CreateKind: yaml.ScalarNode,
-		},
-	},
-
-	{
-		name: "version v1",
-		fsSlice: `
-- path: a/b
+- path: q/r[]/s/t
+  group: foo
   version: v1
   create: true
   kind: Bar
 `,
 		input: `
-apiVersion: v1
+apiVersion: foo/v1
 kind: Bar
+q:
+  r:
+  - s: {}
 `,
 		expected: `
-apiVersion: v1
+apiVersion: foo/v1
 kind: Bar
+q:
+  r:
+  - s: {t: e}
 a:
   b: e
 `,
-		filter: fsslice.Filter{
-			SetValue:   fsslice.SetScalar("e"),
+		filter: Filter{
+			SetValue:   filtersutil.SetScalar("e"),
 			CreateKind: yaml.ScalarNode,
 		},
 	},
 }
 
-func TestFilter_Filter(t *testing.T) {
-	for i := range tests {
-		test := tests[i]
-		t.Run(test.name, func(t *testing.T) {
+func TestFilter(t *testing.T) {
+	for name := range tests {
+		test := tests[name]
+		t.Run(name, func(t *testing.T) {
 			err := yaml.Unmarshal([]byte(test.fsSlice), &test.filter.FsSlice)
 			if !assert.NoError(t, err) {
 				t.FailNow()

api/filters/imagetag/imagetag.go

@@ -4,17 +4,24 @@
 package imagetag
 
 import (
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/filters/fsslice"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
+// Filter modifies an "image tag", the value used to specify the
+// name, tag, version digest etc. of (docker) container images
+// used by a pod template.
 type Filter struct {
 	// imageTag is the tag we want to apply to the inputs
+	// The name of the image is used as a key, and other fields
+	// can specify a new name, tag, etc.
 	ImageTag types.Image `json:"imageTag,omitempty" yaml:"imageTag,omitempty"`
 
-	// FsSlice contains the FieldSpecs to locate the namespace field
+	// FsSlice contains the FieldSpecs to locate an image field,
+	// e.g. Path: "spec/myContainers[]/image"
 	FsSlice types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
 }
 
@@ -26,6 +33,12 @@ func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 }
 
 func (f Filter) filter(node *yaml.RNode) (*yaml.RNode, error) {
+	// FsSlice is an allowlist, not a denyList, so to deny
+	// something via configuration a new config mechanism is
+	// needed. Until then, hardcode it.
+	if f.isOnDenyList(node) {
+		return node, nil
+	}
 	if err := node.PipeE(fsslice.Filter{
 		FsSlice:  f.FsSlice,
 		SetValue: updateImageTagFn(f.ImageTag),
@@ -35,7 +48,19 @@ func (f Filter) filter(node *yaml.RNode) (*yaml.RNode, error) {
 	return node, nil
 }
 
-func updateImageTagFn(imageTag types.Image) fsslice.SetFn {
+func (f Filter) isOnDenyList(node *yaml.RNode) bool {
+	meta, err := node.GetMeta()
+	if err != nil {
+		// A missing 'meta' field will cause problems elsewhere;
+		// ignore it here to keep the signature simple.
+		return false
+	}
+	// Ignore CRDs
+	// https://github.com/kubernetes-sigs/kustomize/issues/890
+	return meta.Kind == `CustomResourceDefinition`
+}
+
+func updateImageTagFn(imageTag types.Image) filtersutil.SetFn {
 	return func(node *yaml.RNode) error {
 		return node.PipeE(imageTagUpdater{
 			ImageTag: imageTag,

api/filters/imagetag/imagetag_test.go

@@ -19,6 +19,162 @@ func TestImageTagUpdater_Filter(t *testing.T) {
 		filter         Filter
 		fsSlice        types.FsSlice
 	}{
+		"ignore CustomResourceDefinition": {
+			input: `
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: whatever
+spec:
+  containers:
+  - image: whatever
+`,
+			expectedOutput: `
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: whatever
+spec:
+  containers:
+  - image: whatever
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:    "whatever",
+					NewName: "theImageShouldNotChangeInACrd",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/containers/image",
+				},
+			},
+		},
+
+		"legacy multiple images in containers": {
+			input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+spec:
+  containers:
+  - image: nginx:1.2.1
+  - image: nginx:2.1.2
+`,
+			expectedOutput: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+spec:
+  containers:
+  - image: apache@12345
+  - image: apache@12345
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:    "nginx",
+					NewName: "apache",
+					Digest:  "12345",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/containers/image",
+				},
+			},
+		},
+		"legacy both containers and initContainers": {
+			input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+spec:
+  containers:
+  - image: nginx:1.2.1
+  - image: tomcat:1.2.3
+  initContainers:
+  - image: nginx:1.2.1
+  - image: apache:1.2.3
+`,
+			expectedOutput: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+spec:
+  containers:
+  - image: apache:3.2.1
+  - image: tomcat:1.2.3
+  initContainers:
+  - image: apache:3.2.1
+  - image: apache:1.2.3
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:    "nginx",
+					NewName: "apache",
+					NewTag:  "3.2.1",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/containers/image",
+				},
+				{
+					Path: "spec/initContainers/image",
+				},
+			},
+		},
+		"legacy updates at multiple depths": {
+			input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+spec:
+  containers:
+  - image: nginx:1.2.1
+  - image: tomcat:1.2.3
+  template:
+    spec:
+      initContainers:
+      - image: nginx:1.2.1
+      - image: apache:1.2.3
+`,
+			expectedOutput: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+spec:
+  containers:
+  - image: apache:3.2.1
+  - image: tomcat:1.2.3
+  template:
+    spec:
+      initContainers:
+      - image: apache:3.2.1
+      - image: apache:1.2.3
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:    "nginx",
+					NewName: "apache",
+					NewTag:  "3.2.1",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/containers/image",
+				},
+				{
+					Path: "spec/template/spec/initContainers/image",
+				},
+			},
+		},
 		"update with digest": {
 			input: `
 apiVersion: example.com/v1
@@ -49,6 +205,7 @@ spec:
 				},
 			},
 		},
+
 		"multiple matches in sequence": {
 			input: `
 apiVersion: example.com/v1
@@ -85,6 +242,422 @@ spec:
 				},
 			},
 		},
+
+		"new Tag": {
+			input: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: nginx:1.7.9
+        name: nginx-tagged
+      - image: nginx:latest
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: nginx
+        name: nginx-notag
+      - image: nginx@sha256:111111111111111111
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine`,
+			expectedOutput: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: nginx:v2
+        name: nginx-tagged
+      - image: nginx:v2
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: nginx:v2
+        name: nginx-notag
+      - image: nginx:v2
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:   "nginx",
+					NewTag: "v2",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/template/spec/containers[]/image",
+				},
+				{
+					Path: "spec/template/spec/initContainers[]/image",
+				},
+			},
+		},
+		"newImage": {
+			input: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: nginx:1.7.9
+        name: nginx-tagged
+      - image: nginx:latest
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: nginx
+        name: nginx-notag
+      - image: nginx@sha256:111111111111111111
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			expectedOutput: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: busybox:1.7.9
+        name: nginx-tagged
+      - image: busybox:latest
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: busybox
+        name: nginx-notag
+      - image: busybox@sha256:111111111111111111
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:    "nginx",
+					NewName: "busybox",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/template/spec/containers[]/image",
+				},
+				{
+					Path: "spec/template/spec/initContainers[]/image",
+				},
+			},
+		},
+		"newImageAndTag": {
+			input: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: nginx:1.7.9
+        name: nginx-tagged
+      - image: nginx:latest
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: nginx
+        name: nginx-notag
+      - image: nginx@sha256:111111111111111111
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			expectedOutput: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: busybox:v3
+        name: nginx-tagged
+      - image: busybox:v3
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: busybox:v3
+        name: nginx-notag
+      - image: busybox:v3
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:    "nginx",
+					NewName: "busybox",
+					NewTag:  "v3",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/template/spec/containers[]/image",
+				},
+				{
+					Path: "spec/template/spec/initContainers[]/image",
+				},
+			},
+		},
+		"newDigest": {
+			input: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: nginx:1.7.9
+        name: nginx-tagged
+      - image: nginx:latest
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: nginx
+        name: nginx-notag
+      - image: nginx@sha256:111111111111111111
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			expectedOutput: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: nginx@sha256:222222222222222222
+        name: nginx-tagged
+      - image: nginx@sha256:222222222222222222
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: nginx@sha256:222222222222222222
+        name: nginx-notag
+      - image: nginx@sha256:222222222222222222
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:   "nginx",
+					Digest: "sha256:222222222222222222",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/template/spec/containers/image",
+				},
+				{
+					Path: "spec/template/spec/initContainers/image",
+				},
+			},
+		},
+		"newImageAndDigest": {
+			input: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: nginx:1.7.9
+        name: nginx-tagged
+      - image: nginx:latest
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: nginx
+        name: nginx-notag
+      - image: nginx@sha256:111111111111111111
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			expectedOutput: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: busybox@sha256:222222222222222222
+        name: nginx-tagged
+      - image: busybox@sha256:222222222222222222
+        name: nginx-latest
+      - image: foobar:1
+        name: replaced-with-digest
+      - image: postgres:1.8.0
+        name: postgresdb
+      initContainers:
+      - image: busybox@sha256:222222222222222222
+        name: nginx-notag
+      - image: busybox@sha256:222222222222222222
+        name: nginx-sha256
+      - image: alpine:1.8.0
+        name: init-alpine
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:    "nginx",
+					NewName: "busybox",
+					Digest:  "sha256:222222222222222222",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/template/spec/containers[]/image",
+				},
+				{
+					Path: "spec/template/spec/initContainers[]/image",
+				},
+			},
+		},
+		"emptyContainers": {
+			input: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  containers:
+`,
+			expectedOutput: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  containers: []
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:   "nginx",
+					NewTag: "v2",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/containers[]/image",
+					//					CreateIfNotPresent: true,
+				},
+			},
+		},
+		"tagWithBraces": {
+			input: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: some.registry.io/my-image:{GENERATED_TAG}
+        name: my-image
+`,
+			expectedOutput: `
+group: apps
+apiVersion: v1
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    spec:
+      containers:
+      - image: some.registry.io/my-image:my-fixed-tag
+        name: my-image
+`,
+			filter: Filter{
+				ImageTag: types.Image{
+					Name:   "some.registry.io/my-image",
+					NewTag: "my-fixed-tag",
+				},
+			},
+			fsSlice: []types.FieldSpec{
+				{
+					Path: "spec/template/spec/containers[]/image",
+				},
+				{
+					Path: "spec/template/spec/initContainers[]/image",
+				},
+			},
+		},
 	}
 
 	for tn, tc := range testCases {

api/filters/labels/labels.go

@@ -25,15 +25,16 @@ type Filter struct {
 var _ kio.Filter = Filter{}
 
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
-	keys := filtersutil.SortedMapKeys(f.Labels)
+	keys := yaml.SortedMapKeys(f.Labels)
 	_, err := kio.FilterAll(yaml.FilterFunc(
 		func(node *yaml.RNode) (*yaml.RNode, error) {
 			for _, k := range keys {
 				if err := node.PipeE(fsslice.Filter{
-					FsSlice:    f.FsSlice,
-					SetValue:   fsslice.SetEntry(k, f.Labels[k], yaml.StringTag),
+					FsSlice: f.FsSlice,
+					SetValue: filtersutil.SetEntry(
+						k, f.Labels[k], yaml.NodeTagString),
 					CreateKind: yaml.MappingNode, // Labels are MappingNodes.
-					CreateTag:  "!!map",
+					CreateTag:  yaml.NodeTagMap,
 				}); err != nil {
 					return nil, err
 				}

api/filters/nameref/doc.go

@@ -0,0 +1,3 @@
+// Package nameref contains a kio.Filter implementation of the kustomize
+// name reference transformer.
+package nameref

api/filters/nameref/nameref.go

@@ -0,0 +1,402 @@
+package nameref
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/api/filters/fieldspec"
+	"sigs.k8s.io/kustomize/api/resid"
+	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/resource"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/filtersutil"
+	"sigs.k8s.io/kustomize/kyaml/kio"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+// Filter updates a name references.
+type Filter struct {
+	// Referrer refers to another resource X by X's name.
+	// E.g. A Deployment can refer to a ConfigMap.
+	// The Deployment is the Referrer,
+	// the ConfigMap is the ReferralTarget.
+	// This filter seeks to repair the reference in Deployment, given
+	// that the ConfigMap's name may have changed.
+	Referrer *resource.Resource
+
+	// NameFieldToUpdate is the field in the Referrer
+	// that holds the name requiring an update.
+	// This is the field to write.
+	NameFieldToUpdate types.FieldSpec
+
+	// ReferralTarget is the source of the new value for
+	// the name, always in the 'metadata/name' field.
+	// This is the field to read.
+	ReferralTarget resid.Gvk
+
+	// Set of resources to scan to find the ReferralTarget.
+	ReferralCandidates resmap.ResMap
+}
+
+// At time of writing, in practice this is called with a slice with only
+// one entry, the node also referred to be the resource in the Referrer field.
+func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
+	return kio.FilterAll(yaml.FilterFunc(f.run)).Filter(nodes)
+}
+
+// The node passed in here is the same node as held in Referrer;
+// that's how the referrer's name field is updated.
+// Currently, however, this filter still needs the extra methods on Referrer
+// to consult things like the resource Id, its namespace, etc.
+// TODO(3455): No filter should use the Resource api; all information
+// about names should come from annotations, with helper methods
+// on the RNode object.  Resource should get stupider, RNode smarter.
+func (f Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
+	if err := f.confirmNodeMatchesReferrer(node); err != nil {
+		// sanity check.
+		return nil, err
+	}
+	if err := node.PipeE(fieldspec.Filter{
+		FieldSpec: f.NameFieldToUpdate,
+		SetValue:  f.set,
+	}); err != nil {
+		return nil, errors.Wrapf(
+			err, "updating name reference in '%s' field of '%s'",
+			f.NameFieldToUpdate.Path, f.Referrer.CurId().String())
+	}
+	return node, nil
+}
+
+// This function is called on the node found at FieldSpec.Path.
+// It's some node in the Referrer.
+func (f Filter) set(node *yaml.RNode) error {
+	if yaml.IsMissingOrNull(node) {
+		return nil
+	}
+	switch node.YNode().Kind {
+	case yaml.ScalarNode:
+		return f.setScalar(node)
+	case yaml.MappingNode:
+		return f.setMapping(node)
+	case yaml.SequenceNode:
+		return applyFilterToSeq(seqFilter{
+			setScalarFn:  f.setScalar,
+			setMappingFn: f.setMapping,
+		}, node)
+	default:
+		return fmt.Errorf("node must be a scalar, sequence or map")
+	}
+}
+
+// This method used when NameFieldToUpdate doesn't lead to
+// one scalar field (typically called 'name'), but rather
+// leads to a map field (called anything). In this case we
+// must complete the field path, looking for both  a 'name'
+// and a 'namespace' field to help select the proper
+// ReferralTarget to read the name and namespace from.
+func (f Filter) setMapping(node *yaml.RNode) error {
+	if node.YNode().Kind != yaml.MappingNode {
+		return fmt.Errorf("expect a mapping node")
+	}
+	nameNode, err := node.Pipe(yaml.FieldMatcher{Name: "name"})
+	if err != nil {
+		return errors.Wrap(err, "trying to match 'name' field")
+	}
+	if nameNode == nil {
+		// This is a _configuration_ error; the field path
+		// specified in NameFieldToUpdate.Path doesn't resolve
+		// to a map with a 'name' field, so we have no idea what
+		// field to update with a new name.
+		return fmt.Errorf("path config error; no 'name' field in node")
+	}
+	candidates, err := f.filterMapCandidatesByNamespace(node)
+	if err != nil {
+		return err
+	}
+	oldName := nameNode.YNode().Value
+	referral, err := f.selectReferral(oldName, candidates)
+	if err != nil || referral == nil {
+		// Nil referral means nothing to do.
+		return err
+	}
+	f.recordTheReferral(referral)
+	if referral.GetName() == oldName && referral.GetNamespace() == "" {
+		// The name has not changed, nothing to do.
+		return nil
+	}
+	if err = node.PipeE(yaml.FieldSetter{
+		Name:        "name",
+		StringValue: referral.GetName(),
+	}); err != nil {
+		return err
+	}
+	if referral.GetNamespace() == "" {
+		// Don't write an empty string into the namespace field, as
+		// it should not replace the value "default".  The empty
+		// string is handled as a wild card here, not as an implicit
+		// specification of the "default" k8s namespace.
+		return nil
+	}
+	return node.PipeE(yaml.FieldSetter{
+		Name:        "namespace",
+		StringValue: referral.GetNamespace(),
+	})
+}
+
+func (f Filter) filterMapCandidatesByNamespace(
+	node *yaml.RNode) ([]*resource.Resource, error) {
+	namespaceNode, err := node.Pipe(yaml.FieldMatcher{Name: "namespace"})
+	if err != nil {
+		return nil, errors.Wrap(err, "trying to match 'namespace' field")
+	}
+	if namespaceNode == nil {
+		return f.ReferralCandidates.Resources(), nil
+	}
+	namespace := namespaceNode.YNode().Value
+	nsMap := f.ReferralCandidates.GroupedByOriginalNamespace()
+	if candidates, ok := nsMap[namespace]; ok {
+		return candidates, nil
+	}
+	nsMap = f.ReferralCandidates.GroupedByCurrentNamespace()
+	// This could be nil, or an empty list.
+	return nsMap[namespace], nil
+}
+
+func (f Filter) setScalar(node *yaml.RNode) error {
+	referral, err := f.selectReferral(
+		node.YNode().Value, f.ReferralCandidates.Resources())
+	if err != nil || referral == nil {
+		// Nil referral means nothing to do.
+		return err
+	}
+	f.recordTheReferral(referral)
+	if referral.GetName() == node.YNode().Value {
+		// The name has not changed, nothing to do.
+		return nil
+	}
+	return node.PipeE(yaml.FieldSetter{StringValue: referral.GetName()})
+}
+
+// In the resource, make a note that it is referred to by the Referrer.
+func (f Filter) recordTheReferral(referral *resource.Resource) {
+	referral.AppendRefBy(f.Referrer.CurId())
+}
+
+// getRoleRefGvk returns a Gvk in the roleRef field. Return error
+// if the roleRef, roleRef/apiGroup or roleRef/kind is missing.
+func getRoleRefGvk(res json.Marshaler) (*resid.Gvk, error) {
+	n, err := filtersutil.GetRNode(res)
+	if err != nil {
+		return nil, err
+	}
+	roleRef, err := n.Pipe(yaml.Lookup("roleRef"))
+	if err != nil {
+		return nil, err
+	}
+	if roleRef.IsNil() {
+		return nil, fmt.Errorf("roleRef cannot be found in %s", n.MustString())
+	}
+	apiGroup, err := roleRef.Pipe(yaml.Lookup("apiGroup"))
+	if err != nil {
+		return nil, err
+	}
+	if apiGroup.IsNil() {
+		return nil, fmt.Errorf(
+			"apiGroup cannot be found in roleRef %s", roleRef.MustString())
+	}
+	kind, err := roleRef.Pipe(yaml.Lookup("kind"))
+	if err != nil {
+		return nil, err
+	}
+	if kind.IsNil() {
+		return nil, fmt.Errorf(
+			"kind cannot be found in roleRef %s", roleRef.MustString())
+	}
+	return &resid.Gvk{
+		Group: apiGroup.YNode().Value,
+		Kind:  kind.YNode().Value,
+	}, nil
+}
+
+// sieveFunc returns true if the resource argument satisfies some criteria.
+type sieveFunc func(*resource.Resource) bool
+
+// doSieve uses a function to accept or ignore resources from a list.
+// If list is nil, returns immediately.
+// It's a filter obviously, but that term is overloaded here.
+func doSieve(list []*resource.Resource, fn sieveFunc) (s []*resource.Resource) {
+	for _, r := range list {
+		if fn(r) {
+			s = append(s, r)
+		}
+	}
+	return
+}
+
+func acceptAll(r *resource.Resource) bool {
+	return true
+}
+
+func previousNameMatches(name string) sieveFunc {
+	return func(r *resource.Resource) bool {
+		for _, id := range r.PrevIds() {
+			if id.Name == name {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+func previousIdSelectedByGvk(gvk *resid.Gvk) sieveFunc {
+	return func(r *resource.Resource) bool {
+		for _, id := range r.PrevIds() {
+			if id.IsSelected(gvk) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+// If the we are updating a 'roleRef/name' field, the 'apiGroup' and 'kind'
+// fields in the same 'roleRef' map must be considered.
+// If either object is cluster-scoped (!IsNamespaceableKind), there
+// can be a referral.
+// E.g. a RoleBinding (which exists in a namespace) can refer
+// to a ClusterRole (cluster-scoped) object.
+// https://kubernetes.io/docs/reference/access-authn-authz/rbac/#role-and-clusterrole
+// Likewise, a ClusterRole can refer to a Secret (in a namespace).
+// Objects in different namespaces generally cannot refer to other
+// with some exceptions (e.g. RoleBinding and ServiceAccount are both
+// namespaceable, but the former can refer to accounts in other namespaces).
+func (f Filter) roleRefFilter() sieveFunc {
+	if !strings.HasSuffix(f.NameFieldToUpdate.Path, "roleRef/name") {
+		return acceptAll
+	}
+	roleRefGvk, err := getRoleRefGvk(f.Referrer)
+	if err != nil {
+		return acceptAll
+	}
+	return previousIdSelectedByGvk(roleRefGvk)
+}
+
+func prefixSuffixEquals(other resource.ResCtx) sieveFunc {
+	return func(r *resource.Resource) bool {
+		return r.PrefixesSuffixesEquals(other)
+	}
+}
+
+func (f Filter) sameCurrentNamespaceAsReferrer() sieveFunc {
+	referrerCurId := f.Referrer.CurId()
+	if !referrerCurId.IsNamespaceableKind() {
+		// If the referrer is cluster-scoped, let anything through.
+		return acceptAll
+	}
+	return func(r *resource.Resource) bool {
+		if !r.CurId().IsNamespaceableKind() {
+			// Allow cluster-scoped through.
+			return true
+		}
+		if r.GetKind() == "ServiceAccount" {
+			// Allow service accounts through, even though they
+			// are in a namespace.  A RoleBinding in another namespace
+			// can reference them.
+			return true
+		}
+		return referrerCurId.IsNsEquals(r.CurId())
+	}
+}
+
+// selectReferral picks the best referral from a list of candidates.
+func (f Filter) selectReferral(
+	// The name referral that may need to be updated.
+	oldName string,
+	candidates []*resource.Resource) (*resource.Resource, error) {
+	candidates = doSieve(candidates, previousNameMatches(oldName))
+	candidates = doSieve(candidates, previousIdSelectedByGvk(&f.ReferralTarget))
+	candidates = doSieve(candidates, f.roleRefFilter())
+	candidates = doSieve(candidates, f.sameCurrentNamespaceAsReferrer())
+	if len(candidates) == 1 {
+		return candidates[0], nil
+	}
+	candidates = doSieve(candidates, prefixSuffixEquals(f.Referrer))
+	if len(candidates) == 1 {
+		return candidates[0], nil
+	}
+	if len(candidates) == 0 {
+		return nil, nil
+	}
+	if allNamesAreTheSame(candidates) {
+		// Just take the first one.
+		return candidates[0], nil
+	}
+	ids := getIds(candidates)
+	f.failureDetails(candidates)
+	return nil, fmt.Errorf(" found multiple possible referrals: %s", ids)
+}
+
+func (f Filter) failureDetails(resources []*resource.Resource) {
+	fmt.Printf(
+		"\n**** Too many possible referral targets to referrer:\n%s\n",
+		f.Referrer.MustYaml())
+	for i, r := range resources {
+		fmt.Printf(
+			"--- possible referral %d:\n%s", i, r.MustYaml())
+		fmt.Println("------")
+	}
+}
+
+func allNamesAreTheSame(resources []*resource.Resource) bool {
+	name := resources[0].GetName()
+	for i := 1; i < len(resources); i++ {
+		if name != resources[i].GetName() {
+			return false
+		}
+	}
+	return true
+}
+
+func getIds(rs []*resource.Resource) string {
+	var result []string
+	for _, r := range rs {
+		result = append(result, r.CurId().String())
+	}
+	return strings.Join(result, ", ")
+}
+
+func checkEqual(k, a, b string) error {
+	if a != b {
+		return fmt.Errorf(
+			"node-referrerOriginal '%s' mismatch '%s' != '%s'",
+			k, a, b)
+	}
+	return nil
+}
+
+func (f Filter) confirmNodeMatchesReferrer(node *yaml.RNode) error {
+	meta, err := node.GetMeta()
+	if err != nil {
+		return err
+	}
+	gvk := f.Referrer.GetGvk()
+	if err = checkEqual(
+		"APIVersion", meta.APIVersion, gvk.ApiVersion()); err != nil {
+		return err
+	}
+	if err = checkEqual(
+		"Kind", meta.Kind, gvk.Kind); err != nil {
+		return err
+	}
+	if err = checkEqual(
+		"Name", meta.Name, f.Referrer.GetName()); err != nil {
+		return err
+	}
+	if err = checkEqual(
+		"Namespace", meta.Namespace, f.Referrer.GetNamespace()); err != nil {
+		return err
+	}
+	return nil
+}

api/filters/nameref/nameref_test.go

@@ -0,0 +1,789 @@
+package nameref
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/api/provider"
+	"sigs.k8s.io/kustomize/api/resid"
+	"sigs.k8s.io/kustomize/api/resmap"
+	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
+	"sigs.k8s.io/kustomize/api/types"
+)
+
+func TestNamerefFilter(t *testing.T) {
+	testCases := map[string]struct {
+		referrerOriginal string
+		candidates       string
+		referrerFinal    string
+		filter           Filter
+		originalNames    []string
+	}{
+		"simple scalar": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: NotSecret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "newName2"},
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: newName
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+		},
+		"sequence": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+seq:
+- oldName1
+- oldName2
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: NotSecret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName1", "newName2"},
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+seq:
+- newName
+- oldName2
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "seq"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+		},
+		"mapping": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+map:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: NotSecret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "newName2"},
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+map:
+  name: newName
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "map"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+		},
+		"mapping with namespace": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+  namespace: someNs
+map:
+  name: oldName
+  namespace: someNs
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+  namespace: someNs
+---
+apiVersion: apps/v1
+kind: NotSecret
+metadata:
+  name: newName2
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: thirdName
+`,
+			originalNames: []string{"oldName", "oldName", "oldName"},
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+  namespace: someNs
+map:
+  name: newName
+  namespace: someNs
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "map"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+		},
+		"null value": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+map:
+  name: null
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: NotSecret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "newName2"},
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+map:
+  name: null
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "map"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			factory := provider.NewDefaultDepProvider().GetResourceFactory()
+			referrer, err := factory.FromBytes([]byte(tc.referrerOriginal))
+			if err != nil {
+				t.Fatal(err)
+			}
+			tc.filter.Referrer = referrer
+
+			resMapFactory := resmap.NewFactory(factory, nil)
+			candidatesRes, err := factory.SliceFromBytesWithNames(
+				tc.originalNames, []byte(tc.candidates))
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			candidates := resMapFactory.FromResourceSlice(candidatesRes)
+			tc.filter.ReferralCandidates = candidates
+
+			result := filtertest_test.RunFilter(t, tc.referrerOriginal, tc.filter)
+			if !assert.Equal(t,
+				strings.TrimSpace(tc.referrerFinal),
+				strings.TrimSpace(result)) {
+				t.FailNow()
+			}
+		})
+	}
+}
+
+func TestNamerefFilterUnhappy(t *testing.T) {
+	testCases := map[string]struct {
+		referrerOriginal string
+		candidates       string
+		referrerFinal    string
+		filter           Filter
+		originalNames    []string
+	}{
+		"multiple match": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			referrerFinal: "",
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+		},
+		"no name": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  notName: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			referrerFinal: "",
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			factory := provider.NewDefaultDepProvider().GetResourceFactory()
+			referrer, err := factory.FromBytes([]byte(tc.referrerOriginal))
+			if err != nil {
+				t.Fatal(err)
+			}
+			tc.filter.Referrer = referrer
+
+			resMapFactory := resmap.NewFactory(factory, nil)
+			candidatesRes, err := factory.SliceFromBytesWithNames(
+				tc.originalNames, []byte(tc.candidates))
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			candidates := resMapFactory.FromResourceSlice(candidatesRes)
+			tc.filter.ReferralCandidates = candidates
+
+			_, err = filtertest_test.RunFilterE(t, tc.referrerOriginal, tc.filter)
+			if err == nil {
+				t.Fatalf("expect an error")
+			}
+			if tc.referrerFinal != "" && !assert.EqualError(t, err, tc.referrerFinal) {
+				t.FailNow()
+			}
+		})
+	}
+}
+
+func TestCandidatesWithDifferentPrefixSuffix(t *testing.T) {
+	testCases := map[string]struct {
+		referrerOriginal string
+		candidates       string
+		referrerFinal    string
+		filter           Filter
+		originalNames    []string
+		prefix           []string
+		suffix           []string
+		inputPrefix      string
+		inputSuffix      string
+		err              bool
+	}{
+		"prefix match": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix1", "prefix2"},
+			suffix:        []string{"", "suffix2"},
+			inputPrefix:   "prefix1",
+			inputSuffix:   "",
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: newName
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"suffix match": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"", "prefix2"},
+			suffix:        []string{"suffix1", "suffix2"},
+			inputPrefix:   "",
+			inputSuffix:   "suffix1",
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: newName
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"prefix suffix both match": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix1", "prefix2"},
+			suffix:        []string{"suffix1", "suffix2"},
+			inputPrefix:   "prefix1",
+			inputSuffix:   "suffix1",
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: newName
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"multiple match: both": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix", "prefix"},
+			suffix:        []string{"suffix", "suffix"},
+			inputPrefix:   "prefix",
+			inputSuffix:   "suffix",
+			referrerFinal: "",
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: true,
+		},
+		"multiple match: only prefix": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix", "prefix"},
+			suffix:        []string{"", ""},
+			inputPrefix:   "prefix",
+			inputSuffix:   "",
+			referrerFinal: "",
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: true,
+		},
+		"multiple match: only suffix": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"", ""},
+			suffix:        []string{"suffix", "suffix"},
+			inputPrefix:   "",
+			inputSuffix:   "suffix",
+			referrerFinal: "",
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: true,
+		},
+		"no match: neither match": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix1", "prefix2"},
+			suffix:        []string{"suffix1", "suffix2"},
+			inputPrefix:   "prefix",
+			inputSuffix:   "suffix",
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"no match: prefix doesn't match": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix1", "prefix2"},
+			suffix:        []string{"suffix", "suffix"},
+			inputPrefix:   "prefix",
+			inputSuffix:   "suffix",
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"no match: suffix doesn't match": {
+			referrerOriginal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix", "prefix"},
+			suffix:        []string{"suffix1", "suffix2"},
+			inputPrefix:   "prefix",
+			inputSuffix:   "suffix",
+			referrerFinal: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			filter: Filter{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			factory := provider.NewDefaultDepProvider().GetResourceFactory()
+			referrer, err := factory.FromBytes([]byte(tc.referrerOriginal))
+			if err != nil {
+				t.Fatal(err)
+			}
+			if tc.inputPrefix != "" {
+				referrer.AddNamePrefix(tc.inputPrefix)
+			}
+			if tc.inputSuffix != "" {
+				referrer.AddNameSuffix(tc.inputSuffix)
+			}
+			tc.filter.Referrer = referrer
+
+			resMapFactory := resmap.NewFactory(factory, nil)
+			candidatesRes, err := factory.SliceFromBytesWithNames(
+				tc.originalNames, []byte(tc.candidates))
+			if err != nil {
+				t.Fatal(err)
+			}
+			for i := range candidatesRes {
+				if tc.prefix[i] != "" {
+					candidatesRes[i].AddNamePrefix(tc.prefix[i])
+				}
+				if tc.suffix[i] != "" {
+					candidatesRes[i].AddNameSuffix(tc.suffix[i])
+				}
+			}
+
+			candidates := resMapFactory.FromResourceSlice(candidatesRes)
+			tc.filter.ReferralCandidates = candidates
+
+			if !tc.err {
+				if !assert.Equal(t,
+					strings.TrimSpace(tc.referrerFinal),
+					strings.TrimSpace(
+						filtertest_test.RunFilter(
+							t, tc.referrerOriginal, tc.filter))) {
+					t.FailNow()
+				}
+			} else {
+				_, err := filtertest_test.RunFilterE(
+					t, tc.referrerOriginal, tc.filter)
+				if err == nil {
+					t.Fatalf("an error is expected")
+				}
+			}
+		})
+	}
+}

api/filters/nameref/seqfilter.go

@@ -0,0 +1,57 @@
+package nameref
+
+import (
+	"fmt"
+
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+type setFn func(*yaml.RNode) error
+
+type seqFilter struct {
+	setScalarFn  setFn
+	setMappingFn setFn
+}
+
+func (sf seqFilter) Filter(node *yaml.RNode) (*yaml.RNode, error) {
+	if yaml.IsMissingOrNull(node) {
+		return node, nil
+	}
+	switch node.YNode().Kind {
+	case yaml.ScalarNode:
+		// Kind: Role/ClusterRole
+		// FieldSpec is rules.resourceNames
+		err := sf.setScalarFn(node)
+		return node, err
+	case yaml.MappingNode:
+		// Kind: RoleBinding/ClusterRoleBinding
+		// FieldSpec is subjects
+		// Note: The corresponding fieldSpec had been changed from
+		// from path: subjects/name to just path: subjects. This is
+		// what get mutatefield to request the mapping of the whole
+		// map containing namespace and name instead of just a simple
+		// string field containing the name
+		err := sf.setMappingFn(node)
+		return node, err
+	default:
+		return node, fmt.Errorf(
+			"%#v is expected to be either a string or a map of string", node)
+	}
+}
+
+// applyFilterToSeq will apply the filter to each element in the sequence node
+func applyFilterToSeq(filter yaml.Filter, node *yaml.RNode) error {
+	if node.YNode().Kind != yaml.SequenceNode {
+		return fmt.Errorf("expect a sequence node but got %v", node.YNode().Kind)
+	}
+
+	for _, elem := range node.Content() {
+		rnode := yaml.NewRNode(elem)
+		err := rnode.PipeE(filter)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

api/filters/nameref/seqfilter_test.go

@@ -0,0 +1,80 @@
+package nameref
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+func SeqFilter(node *yaml.RNode) (*yaml.RNode, error) {
+	if node.YNode().Value == "aaa" {
+		node.YNode().SetString("ccc")
+	}
+	return node, nil
+}
+
+func TestApplyFilterToSeq(t *testing.T) {
+	fltr := yaml.FilterFunc(SeqFilter)
+
+	testCases := map[string]struct {
+		input  string
+		expect string
+	}{
+		"replace in seq": {
+			input: `
+- aaa
+- bbb`,
+			expect: `
+- ccc
+- bbb`,
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			node, err := yaml.Parse(tc.input)
+			if err != nil {
+				t.Fatal(err)
+			}
+			err = applyFilterToSeq(fltr, node)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if !assert.Equal(t,
+				strings.TrimSpace(tc.expect),
+				strings.TrimSpace(node.MustString())) {
+				t.Fatalf("expect:\n%s\nactual:\n%s",
+					strings.TrimSpace(tc.expect),
+					strings.TrimSpace(node.MustString()))
+			}
+		})
+	}
+}
+
+func TestApplyFilterToSeqUnhappy(t *testing.T) {
+	fltr := yaml.FilterFunc(SeqFilter)
+
+	testCases := map[string]struct {
+		input string
+	}{
+		"replace in seq": {
+			input: `
+aaa`,
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			node, err := yaml.Parse(tc.input)
+			if err != nil {
+				t.Fatal(err)
+			}
+			err = applyFilterToSeq(fltr, node)
+			if err == nil {
+				t.Fatalf("expect an error")
+			}
+		})
+	}
+}

api/filters/namespace/namespace.go

@@ -4,6 +4,8 @@
 package namespace
 
 import (
+	"sigs.k8s.io/kustomize/api/filters/fieldspec"
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/filters/fsslice"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/kio"
@@ -42,9 +44,9 @@ func (ns Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
 	// transformations based on data -- :)
 	err := node.PipeE(fsslice.Filter{
 		FsSlice:    ns.FsSlice,
-		SetValue:   fsslice.SetScalar(ns.Namespace),
+		SetValue:   filtersutil.SetScalar(ns.Namespace),
 		CreateKind: yaml.ScalarNode, // Namespace is a ScalarNode
-		CreateTag:  yaml.StringTag,
+		CreateTag:  yaml.NodeTagString,
 	})
 	return node, err
 }
@@ -67,13 +69,13 @@ func (ns Filter) hacks(obj *yaml.RNode) error {
 // metaNamespaceHack is a hack for implementing the namespace transform
 // for the metadata.namespace field on namespace scoped resources.
 // namespace scoped resources are determined by NOT being present
-// in a blacklist of cluster-scoped resource types (by apiVersion and kind).
+// in a hard-coded list of cluster-scoped resource types (by apiVersion and kind).
 //
 // This hack should be updated to allow individual resources to specify
 // if they are cluster scoped through either an annotation on the resources,
 // or through inlined OpenAPI on the resource as a YAML comment.
 func (ns Filter) metaNamespaceHack(obj *yaml.RNode, meta yaml.ResourceMeta) error {
-	gvk := fsslice.GetGVK(meta)
+	gvk := fieldspec.GetGVK(meta)
 	if !gvk.IsNamespaceableKind() {
 		return nil
 	}
@@ -81,7 +83,7 @@ func (ns Filter) metaNamespaceHack(obj *yaml.RNode, meta yaml.ResourceMeta) erro
 		FsSlice: []types.FieldSpec{
 			{Path: types.MetadataNamespacePath, CreateIfNotPresent: true},
 		},
-		SetValue:   fsslice.SetScalar(ns.Namespace),
+		SetValue:   filtersutil.SetScalar(ns.Namespace),
 		CreateKind: yaml.ScalarNode, // Namespace is a ScalarNode
 	}
 	_, err := f.Filter(obj)
@@ -110,7 +112,7 @@ func (ns Filter) roleBindingHack(obj *yaml.RNode, meta yaml.ResourceMeta) error
 	// Lookup the namespace field on all elements.
 	// We should change the fieldspec so this isn't necessary.
 	obj, err := obj.Pipe(yaml.Lookup(subjectsField))
-	if err != nil || yaml.IsEmpty(obj) {
+	if err != nil || yaml.IsMissingOrNull(obj) {
 		return err
 	}
 
@@ -123,7 +125,7 @@ func (ns Filter) roleBindingHack(obj *yaml.RNode, meta yaml.ResourceMeta) error
 		name, err := o.Pipe(
 			yaml.Lookup("name"), yaml.Match("default"),
 		)
-		if err != nil || yaml.IsEmpty(name) {
+		if err != nil || yaml.IsMissingOrNull(name) {
 			return err
 		}
 

api/filters/namespace/namespace_test.go

@@ -194,47 +194,47 @@ metadata:
 	{
 		name: "update-clusterrolebinding",
 		input: `
-apiVersion: example.com/v1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 subjects:
 - name: default
 ---
-apiVersion: example.com/v1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 subjects:
 - name: default
   namespace: foo
 ---
-apiVersion: example.com/v1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 subjects:
 - name: something
 ---
-apiVersion: example.com/v1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 subjects:
 - name: something
   namespace: foo
 `,
 		expected: `
-apiVersion: example.com/v1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 subjects:
 - name: default
   namespace: bar
 ---
-apiVersion: example.com/v1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 subjects:
 - name: default
   namespace: bar
 ---
-apiVersion: example.com/v1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 subjects:
 - name: something
 ---
-apiVersion: example.com/v1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 subjects:
 - name: something

api/filters/patchstrategicmerge/patchstrategicmerge.go

@@ -1,6 +1,10 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package patchstrategicmerge
 
 import (
+	"sigs.k8s.io/kustomize/api/konfig"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 	"sigs.k8s.io/kustomize/kyaml/yaml/merge2"
@@ -12,10 +16,22 @@ type Filter struct {
 
 var _ kio.Filter = Filter{}
 
+// Filter does a strategic merge patch, which can delete nodes.
 func (pf Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
-	return kio.FilterAll(yaml.FilterFunc(pf.run)).Filter(nodes)
-}
-
-func (pf Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
-	return merge2.Merge(pf.Patch, node)
+	var result []*yaml.RNode
+	for i := range nodes {
+		r, err := merge2.Merge(
+			pf.Patch, nodes[i],
+			yaml.MergeOptions{
+				ListIncreaseDirection: yaml.MergeOptionsListPrepend,
+			},
+		)
+		if err != nil {
+			return nil, err
+		}
+		if !konfig.FlagEnableKyamlDefaultValue || r != nil {
+			result = append(result, r)
+		}
+	}
+	return result, nil
 }

api/filters/patchstrategicmerge/patchstrategicmerge_test.go

@@ -15,6 +15,101 @@ func TestFilter(t *testing.T) {
 		patch    *yaml.RNode
 		expected string
 	}{
+		"simple": {
+			input: `apiVersion: v1
+kind: Deployment
+metadata:
+  name: clown
+spec:
+  numReplicas: 1
+`,
+			patch: yaml.MustParse(`apiVersion: v1
+kind: Deployment
+metadata:
+  name: clown
+spec:
+  numReplicas: 999
+`),
+			expected: `apiVersion: v1
+kind: Deployment
+metadata:
+  name: clown
+spec:
+  numReplicas: 999
+`,
+		},
+		"nullMapEntry1": {
+			input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: my-foo
+spec:
+  bar:
+    B:
+    C: Z
+`,
+			patch: yaml.MustParse(`
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: my-foo
+spec:
+  bar:
+    C: Z
+    D: W
+  baz:
+    hello: world
+`),
+			expected: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: my-foo
+spec:
+  bar:
+    C: Z
+    D: W
+  baz:
+    hello: world
+`,
+		},
+		"nullMapEntry2": {
+			input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: my-foo
+spec:
+  bar:
+    C: Z
+    D: W
+  baz:
+    hello: world
+`,
+			patch: yaml.MustParse(`
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: my-foo
+spec:
+  bar:
+    B:
+    C: Z
+`),
+			expected: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: my-foo
+spec:
+  bar:
+    C: Z
+    D: W
+  baz:
+    hello: world
+`,
+		},
 		"simple patch": {
 			input: `
 apiVersion: apps/v1
@@ -67,10 +162,10 @@ spec:
   template:
     spec:
       containers:
+      - name: foo0
       - name: foo1
       - name: foo2
       - name: foo3
-      - name: foo0
 `,
 		},
 		"volumes patch": {
@@ -107,10 +202,10 @@ spec:
   template:
     spec:
       volumes:
+      - name: foo0
       - name: foo1
       - name: foo2
       - name: foo3
-      - name: foo0
 `,
 		},
 		"nested patch": {
@@ -142,6 +237,498 @@ spec:
   - name: nginx
     args:
     - def
+`,
+		},
+		"remove mapping - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+        $patch: delete   
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers: []
+`,
+		},
+		"replace mapping - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      $patch: replace
+      containers:
+      - name: new
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: new
+`,
+		},
+		"merge mapping - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test1
+        $patch: merge   
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test1
+`,
+		},
+		"remove list - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - whatever
+      - $patch: delete
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec: {}
+`,
+		},
+		"replace list - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: replace
+        image: replace
+      - $patch: replace   
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: replace
+        image: replace
+`,
+		},
+		"merge list - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test2
+        image: test2
+      - $patch: merge   
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test2
+        image: test2
+      - name: test
+        image: test
+`,
+		},
+		"list map keys - add a port, no names": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: test-deployment
+spec:
+ template:
+   spec:
+     containers:
+     - image: test-image
+       name: test-deployment
+       ports:
+       - containerPort: 8080
+         protocol: TCP
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: test-deployment
+spec:
+ template:
+   spec:
+     containers:
+     - image: test-image
+       name: test-deployment
+       ports:
+       - containerPort: 8080
+         protocol: UDP
+       - containerPort: 80
+         protocol: UDP
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+spec:
+  template:
+    spec:
+      containers:
+      - image: test-image
+        name: test-deployment
+        ports:
+        - containerPort: 8080
+          protocol: UDP
+        - containerPort: 80
+          protocol: UDP
+        - containerPort: 8080
+          protocol: TCP
+`,
+		},
+		"list map keys - add name to port": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: test-deployment
+spec:
+ template:
+   spec:
+     containers:
+     - image: test-image
+       name: test-deployment
+       ports:
+       - containerPort: 8080
+         protocol: UDP
+       - containerPort: 8080
+         protocol: TCP
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: test-deployment
+spec:
+ template:
+   spec:
+     containers:
+     - image: test-image
+       name: test-deployment
+       ports:
+       - containerPort: 8080
+         protocol: UDP
+         name: UDP-name-patch
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+spec:
+  template:
+    spec:
+      containers:
+      - image: test-image
+        name: test-deployment
+        ports:
+        - containerPort: 8080
+          protocol: UDP
+          name: UDP-name-patch
+        - containerPort: 8080
+          protocol: TCP
+`,
+		},
+		"list map keys - replace port name": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: test-deployment
+spec:
+ template:
+   spec:
+     containers:
+     - image: test-image
+       name: test-deployment
+       ports:
+       - containerPort: 8080
+         protocol: UDP
+         name: UDP-name-original
+       - containerPort: 8080
+         protocol: TCP
+         name: TCP-name-original
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: test-deployment
+spec:
+ template:
+   spec:
+     containers:
+     - image: test-image
+       name: test-deployment
+       ports:
+       - containerPort: 8080
+         protocol: UDP
+         name: UDP-name-patch
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+spec:
+  template:
+    spec:
+      containers:
+      - image: test-image
+        name: test-deployment
+        ports:
+        - containerPort: 8080
+          protocol: UDP
+          name: UDP-name-patch
+        - containerPort: 8080
+          protocol: TCP
+          name: TCP-name-original
+`,
+		},
+		"list map keys - add a port, no protocol": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: test-deployment
+spec:
+ template:
+   spec:
+     containers:
+     - image: test-image
+       name: test-deployment
+       ports:
+       - containerPort: 8080
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: test-deployment
+spec:
+ template:
+   spec:
+     containers:
+     - image: test-image
+       name: test-deployment
+       ports:
+       - containerPort: 80
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+spec:
+  template:
+    spec:
+      containers:
+      - image: test-image
+        name: test-deployment
+        ports:
+        - containerPort: 80
+        - containerPort: 8080
+`,
+		},
+
+		// Test for issue #3513
+		// Currently broken; when one port has only containerPort, the output
+		// should not merge containerPort 8301 together
+		// This occurs because when protocol is missing on the first port,
+		// the merge code uses [containerPort] as the merge key rather than
+		// [containerPort, protocol]
+		"list map keys - protocol only present on some ports": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+spec:
+  template:
+    spec:
+      containers:
+      - name: consul
+        image: "dashicorp/consul:1.9.1"
+        ports:
+        - containerPort: 8500
+          name: http
+        - containerPort: 8301
+          protocol: "TCP"
+        - containerPort: 8301
+          protocol: "UDP"
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+  labels:
+    test: label
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+  labels:
+    test: label
+spec:
+  template:
+    spec:
+      containers:
+      - name: consul
+        image: "dashicorp/consul:1.9.1"
+        ports:
+        - containerPort: 8301
+          protocol: "TCP"
+        - containerPort: 8301
+          protocol: "UDP"
+        - containerPort: 8500
+          name: http
 `,
 		},
 	}

api/filters/prefixsuffix/example_test.go

@@ -9,12 +9,11 @@ import (
 	"os"
 
 	"sigs.k8s.io/kustomize/api/filters/prefixsuffix"
-	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
+	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 )
 
 func ExampleFilter() {
-	fss := builtinconfig.MakeDefaultConfig().NamePrefix
 	err := kio.Pipeline{
 		Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(`
 apiVersion: example.com/v1
@@ -27,7 +26,8 @@ kind: Bar
 metadata:
   name: instance
 `)}},
-		Filters: []kio.Filter{prefixsuffix.Filter{Prefix: "baz-", FsSlice: fss}},
+		Filters: []kio.Filter{prefixsuffix.Filter{
+			Prefix: "baz-", FieldSpec: types.FieldSpec{Path: "metadata/name"}}},
 		Outputs: []kio.Writer{kio.ByteWriter{Writer: os.Stdout}},
 	}.Execute()
 	if err != nil {

api/filters/prefixsuffix/prefixsuffix.go

@@ -6,7 +6,8 @@ package prefixsuffix
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/api/filters/fsslice"
+	"sigs.k8s.io/kustomize/api/filters/fieldspec"
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
@@ -17,28 +18,26 @@ type Filter struct {
 	Prefix string `json:"prefix,omitempty" yaml:"prefix,omitempty"`
 	Suffix string `json:"suffix,omitempty" yaml:"suffix,omitempty"`
 
-	FsSlice types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
+	FieldSpec types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
 }
 
 var _ kio.Filter = Filter{}
 
-func (ns Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
-	return kio.FilterAll(yaml.FilterFunc(ns.run)).Filter(nodes)
+func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
+	return kio.FilterAll(yaml.FilterFunc(f.run)).Filter(nodes)
 }
 
-// Run runs the filter on a single node rather than a slice
-func (ns Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
-	// transformations based on data -- :)
-	err := node.PipeE(fsslice.Filter{
-		FsSlice:    ns.FsSlice,
-		SetValue:   ns.set,
+func (f Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
+	err := node.PipeE(fieldspec.Filter{
+		FieldSpec:  f.FieldSpec,
+		SetValue:   f.evaluateField,
 		CreateKind: yaml.ScalarNode, // Name is a ScalarNode
-		CreateTag:  yaml.StringTag,
+		CreateTag:  yaml.NodeTagString,
 	})
 	return node, err
 }
 
-func (ns Filter) set(node *yaml.RNode) error {
-	return fsslice.SetScalar(fmt.Sprintf(
-		"%s%s%s", ns.Prefix, node.YNode().Value, ns.Suffix))(node)
+func (f Filter) evaluateField(node *yaml.RNode) error {
+	return filtersutil.SetScalar(fmt.Sprintf(
+		"%s%s%s", f.Prefix, node.YNode().Value, f.Suffix))(node)
 }

api/filters/prefixsuffix/prefixsuffix_test.go

@@ -9,14 +9,12 @@ import (
 
 	"github.com/stretchr/testify/assert"
 	"sigs.k8s.io/kustomize/api/filters/prefixsuffix"
-	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
 	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
 	"sigs.k8s.io/kustomize/api/types"
 )
 
-var tests = []TestCase{
-	{
-		name: "prefix",
+var tests = map[string]TestCase{
+	"prefix": {
 		input: `
 apiVersion: example.com/v1
 kind: Foo
@@ -40,10 +38,10 @@ metadata:
   name: foo-instance
 `,
 		filter: prefixsuffix.Filter{Prefix: "foo-"},
+		fs:     types.FieldSpec{Path: "metadata/name"},
 	},
 
-	{
-		name: "suffix",
+	"suffix": {
 		input: `
 apiVersion: example.com/v1
 kind: Foo
@@ -67,10 +65,10 @@ metadata:
   name: instance-foo
 `,
 		filter: prefixsuffix.Filter{Suffix: "-foo"},
+		fs:     types.FieldSpec{Path: "metadata/name"},
 	},
 
-	{
-		name: "prefix-suffix",
+	"prefix-suffix": {
 		input: `
 apiVersion: example.com/v1
 kind: Foo
@@ -94,10 +92,10 @@ metadata:
   name: bar-instance-foo
 `,
 		filter: prefixsuffix.Filter{Prefix: "bar-", Suffix: "-foo"},
+		fs:     types.FieldSpec{Path: "metadata/name"},
 	},
 
-	{
-		name: "data-fieldspecs",
+	"data-fieldspecs": {
 		input: `
 apiVersion: example.com/v1
 kind: Foo
@@ -119,7 +117,7 @@ a:
 apiVersion: example.com/v1
 kind: Foo
 metadata:
-  name: foo-instance
+  name: instance
 a:
   b:
     c: foo-d
@@ -127,35 +125,28 @@ a:
 apiVersion: example.com/v1
 kind: Bar
 metadata:
-  name: foo-instance
+  name: instance
 a:
   b:
     c: foo-d
 `,
 		filter: prefixsuffix.Filter{Prefix: "foo-"},
-		fsslice: []types.FieldSpec{
-			{
-				Path: "a/b/c",
-			},
-		},
+		fs:     types.FieldSpec{Path: "a/b/c"},
 	},
 }
 
 type TestCase struct {
-	name     string
 	input    string
 	expected string
 	filter   prefixsuffix.Filter
-	fsslice  types.FsSlice
+	fs       types.FieldSpec
 }
 
-var config = builtinconfig.MakeDefaultConfig()
-
 func TestFilter(t *testing.T) {
-	for i := range tests {
-		test := tests[i]
-		t.Run(test.name, func(t *testing.T) {
-			test.filter.FsSlice = append(config.NamePrefix, test.fsslice...)
+	for name := range tests {
+		test := tests[name]
+		t.Run(name, func(t *testing.T) {
+			test.filter.FieldSpec = test.fs
 			if !assert.Equal(t,
 				strings.TrimSpace(test.expected),
 				strings.TrimSpace(

api/filters/refvar/doc.go

@@ -0,0 +1,3 @@
+// Package refvar contains a kio.Filter implementation of the kustomize
+// refvar transformer (find and replace $(FOO) style variables in strings).
+package refvar

api/filters/refvar/expand.go

@@ -1,12 +1,12 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-// Package expansion provides functions find and replace $(FOO) style variables in strings.
-package expansion
+package refvar
 
 import (
-	"bytes"
 	"fmt"
+	"log"
+	"strings"
 )
 
 const (
@@ -17,38 +17,64 @@ const (
 
 // syntaxWrap returns the input string wrapped by the expansion syntax.
 func syntaxWrap(input string) string {
-	return string(operator) + string(referenceOpener) + input + string(referenceCloser)
+	var sb strings.Builder
+	sb.WriteByte(operator)
+	sb.WriteByte(referenceOpener)
+	sb.WriteString(input)
+	sb.WriteByte(referenceCloser)
+	return sb.String()
 }
 
-// MappingFuncFor returns a mapping function for use with Expand that
-// implements the expansion semantics defined in the expansion spec; it
-// returns the input string wrapped in the expansion syntax if no mapping
-// for the input is found.
-func MappingFuncFor(
-	counts map[string]int,
-	context ...map[string]interface{}) func(string) interface{} {
-	return func(input string) interface{} {
-		for _, vars := range context {
-			val, ok := vars[input]
-			if ok {
-				counts[input]++
-				switch typedV := val.(type) {
-				case string, int64, float64, bool:
-					return typedV
-				default:
-					return syntaxWrap(input)
-				}
+// MappingFunc maps a string to anything.
+type MappingFunc func(string) interface{}
+
+// MakePrimitiveReplacer returns a MappingFunc that uses a map to do
+// replacements, and a histogram to count map hits.
+//
+// Func behavior:
+//
+// If the input key is NOT found in the map, the key is wrapped up as
+// as a variable declaration string and returned, e.g. key FOO becomes $(FOO).
+// This string is presumably put back where it was found, and might get replaced
+// later.
+//
+// If the key is found in the map, the value is returned if it is a primitive
+// type (string, bool, number), and the hit is counted.
+//
+// If it's not a primitive type (e.g. a map, struct, func, etc.) then this
+// function doesn't know what to do with it and it returns the key wrapped up
+// again as if it had not been replaced.  This should probably be an error.
+func MakePrimitiveReplacer(
+	counts map[string]int, someMap map[string]interface{}) MappingFunc {
+	return func(key string) interface{} {
+		if value, ok := someMap[key]; ok {
+			switch typedV := value.(type) {
+			case string, int, int32, int64, float32, float64, bool:
+				counts[key]++
+				return typedV
+			default:
+				// If the value is some complicated type (e.g. a map or struct),
+				// this function doesn't know how to jam it into a string,
+				// so just pretend it was a cache miss.
+				// Likely this should be an error instead of a silent failure,
+				// since the programmer passed an impossible value.
+				log.Printf(
+					"MakePrimitiveReplacer: bad replacement type=%T val=%v",
+					typedV, typedV)
+				return syntaxWrap(key)
 			}
 		}
-		return syntaxWrap(input)
+		// If unable to return the mapped variable, return it
+		// as it was found, and a later mapping might be able to
+		// replace it.
+		return syntaxWrap(key)
 	}
 }
 
-// Expand replaces variable references in the input string according to
-// the expansion spec using the given mapping function to resolve the
-// values of variables.
-func Expand(input string, mapping func(string) interface{}) interface{} {
-	var buf bytes.Buffer
+// DoReplacements replaces variable references in the input string
+// using the mapping function.
+func DoReplacements(input string, mapping MappingFunc) interface{} {
+	var buf strings.Builder
 	checkpoint := 0
 	for cursor := 0; cursor < len(input); cursor++ {
 		if input[cursor] == operator && cursor+1 < len(input) {

api/filters/refvar/expand_test.go

@@ -1,13 +1,14 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package expansion_test
+package refvar_test
 
 import (
 	"fmt"
 	"testing"
 
-	. "sigs.k8s.io/kustomize/api/internal/accumulator/expansion"
+	"github.com/stretchr/testify/assert"
+	. "sigs.k8s.io/kustomize/api/filters/refvar"
 )
 
 type expected struct {
@@ -15,6 +16,48 @@ type expected struct {
 	edited string
 }
 
+func TestPrimitiveReplacer(t *testing.T) {
+	varCounts := make(map[string]int)
+	f := MakePrimitiveReplacer(
+		varCounts,
+		map[string]interface{}{
+			"FOO":        "bar",
+			"ZOO":        "$(FOO)-1",
+			"BLU":        "$(ZOO)-2",
+			"EIGHT":      8,
+			"PI":         3.14159,
+			"ZINT":       "$(INT)",
+			"BOOL":       "true",
+			"HUGENUMBER": int64(9223372036854775807),
+			"CRAZYMAP":   map[string]int{"crazy": 200},
+			"ZBOOL":      "$(BOOL)",
+		})
+	assert.Equal(t, "$()", f(""))
+	assert.Equal(t, "$(      )", f("      "))
+	assert.Equal(t, "$(florida)", f("florida"))
+	assert.Equal(t, "$(0)", f("0"))
+	assert.Equal(t, "bar", f("FOO"))
+	assert.Equal(t, "bar", f("FOO"))
+	assert.Equal(t, "bar", f("FOO"))
+	assert.Equal(t, 8, f("EIGHT"))
+	assert.Equal(t, 8, f("EIGHT"))
+	assert.Equal(t, 3.14159, f("PI"))
+	assert.Equal(t, "true", f("BOOL"))
+	assert.Equal(t, int64(9223372036854775807), f("HUGENUMBER"))
+	assert.Equal(t, "$(FOO)-1", f("ZOO"))
+	assert.Equal(t, "$(CRAZYMAP)", f("CRAZYMAP"))
+	assert.Equal(t,
+		map[string]int{
+			"FOO":        3,
+			"EIGHT":      2,
+			"BOOL":       1,
+			"PI":         1,
+			"ZOO":        1,
+			"HUGENUMBER": 1,
+		},
+		varCounts)
+}
+
 func TestMapReference(t *testing.T) {
 	type env struct {
 		Name  string
@@ -51,7 +94,7 @@ func TestMapReference(t *testing.T) {
 		},
 	}
 
-	declaredEnv := map[string]interface{}{
+	varMap := map[string]interface{}{
 		"FOO":   "bar",
 		"ZOO":   "$(FOO)-1",
 		"BLU":   "$(ZOO)-2",
@@ -61,11 +104,11 @@ func TestMapReference(t *testing.T) {
 		"ZBOOL": "$(BOOL)",
 	}
 
-	counts := make(map[string]int)
-	mapping := MappingFuncFor(counts, declaredEnv)
-
+	varCounts := make(map[string]int)
 	for _, env := range envs {
-		declaredEnv[env.Name] = Expand(fmt.Sprintf("%v", env.Value), mapping)
+		varMap[env.Name] = DoReplacements(
+			fmt.Sprintf("%v", env.Value),
+			MakePrimitiveReplacer(varCounts, varMap))
 	}
 
 	expectedEnv := map[string]expected{
@@ -79,45 +122,20 @@ func TestMapReference(t *testing.T) {
 	}
 
 	for k, v := range expectedEnv {
-		if e, a := v, declaredEnv[k]; e.edited != a || e.count != counts[k] {
+		if e, a := v, varMap[k]; e.edited != a || e.count != varCounts[k] {
 			t.Errorf("Expected %v count=%d, got %v count=%d",
-				e.edited, e.count, a, counts[k])
+				e.edited, e.count, a, varCounts[k])
 		} else {
-			delete(declaredEnv, k)
+			delete(varMap, k)
 		}
 	}
 
-	if len(declaredEnv) != 0 {
-		t.Errorf("Unexpected keys in declared env: %v", declaredEnv)
+	if len(varMap) != 0 {
+		t.Errorf("Unexpected keys in declared env: %v", varMap)
 	}
 }
 
 func TestMapping(t *testing.T) {
-	context := map[string]interface{}{
-		"VAR_A":     "A",
-		"VAR_B":     "B",
-		"VAR_C":     "C",
-		"VAR_REF":   "$(VAR_A)",
-		"VAR_EMPTY": "",
-	}
-	doExpansionTest(t, context)
-}
-
-func TestMappingDual(t *testing.T) {
-	context := map[string]interface{}{
-		"VAR_A":     "A",
-		"VAR_EMPTY": "",
-	}
-	context2 := map[string]interface{}{
-		"VAR_B":   "B",
-		"VAR_C":   "C",
-		"VAR_REF": "$(VAR_A)",
-	}
-
-	doExpansionTest(t, context, context2)
-}
-
-func doExpansionTest(t *testing.T, context ...map[string]interface{}) {
 	cases := []struct {
 		name     string
 		input    string
@@ -333,11 +351,17 @@ func doExpansionTest(t *testing.T, context ...map[string]interface{}) {
 			expected: "\n",
 		},
 	}
-
 	for _, tc := range cases {
 		counts := make(map[string]int)
-		mapping := MappingFuncFor(counts, context...)
-		expanded := Expand(fmt.Sprintf("%v", tc.input), mapping)
+		expanded := DoReplacements(
+			fmt.Sprintf("%v", tc.input),
+			MakePrimitiveReplacer(counts, map[string]interface{}{
+				"VAR_A":     "A",
+				"VAR_B":     "B",
+				"VAR_C":     "C",
+				"VAR_REF":   "$(VAR_A)",
+				"VAR_EMPTY": "",
+			}))
 		if e, a := tc.expected, expanded; e != a {
 			t.Errorf("%v: expected %q, got %q", tc.name, e, a)
 		}
@@ -347,8 +371,7 @@ func doExpansionTest(t *testing.T, context ...map[string]interface{}) {
 		}
 		if len(tc.counts) > 0 {
 			for k, expectedCount := range tc.counts {
-				c, ok := counts[k]
-				if ok {
+				if c, ok := counts[k]; ok {
 					if c != expectedCount {
 						t.Errorf(
 							"%v: k=%s, expected count %d, got %d",

api/filters/refvar/refvar.go

@@ -0,0 +1,110 @@
+package refvar
+
+import (
+	"fmt"
+	"strconv"
+
+	"sigs.k8s.io/kustomize/api/filters/fieldspec"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/kio"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+// Filter updates $(VAR) style variables with values.
+// The fieldSpecs are the places to look for occurrences of $(VAR).
+type Filter struct {
+	MappingFunc MappingFunc     `json:"mappingFunc,omitempty" yaml:"mappingFunc,omitempty"`
+	FieldSpec   types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
+}
+
+func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
+	return kio.FilterAll(yaml.FilterFunc(f.run)).Filter(nodes)
+}
+
+func (f Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
+	err := node.PipeE(fieldspec.Filter{
+		FieldSpec: f.FieldSpec,
+		SetValue:  f.set,
+	})
+	return node, err
+}
+
+func (f Filter) set(node *yaml.RNode) error {
+	if yaml.IsMissingOrNull(node) {
+		return nil
+	}
+	switch node.YNode().Kind {
+	case yaml.ScalarNode:
+		return f.setScalar(node)
+	case yaml.MappingNode:
+		return f.setMap(node)
+	case yaml.SequenceNode:
+		return f.setSeq(node)
+	default:
+		return fmt.Errorf("invalid type encountered %v", node.YNode().Kind)
+	}
+}
+
+func updateNodeValue(node *yaml.Node, newValue interface{}) {
+	switch newValue := newValue.(type) {
+	case int:
+		node.Value = strconv.FormatInt(int64(newValue), 10)
+		node.Tag = yaml.NodeTagInt
+	case int32:
+		node.Value = strconv.FormatInt(int64(newValue), 10)
+		node.Tag = yaml.NodeTagInt
+	case int64:
+		node.Value = strconv.FormatInt(newValue, 10)
+		node.Tag = yaml.NodeTagInt
+	case bool:
+		node.SetString(strconv.FormatBool(newValue))
+		node.Tag = yaml.NodeTagBool
+	case float32:
+		node.SetString(strconv.FormatFloat(float64(newValue), 'f', -1, 32))
+		node.Tag = yaml.NodeTagFloat
+	case float64:
+		node.SetString(strconv.FormatFloat(newValue, 'f', -1, 64))
+		node.Tag = yaml.NodeTagFloat
+	default:
+		node.SetString(newValue.(string))
+		node.Tag = yaml.NodeTagString
+	}
+	node.Style = 0
+}
+
+func (f Filter) setScalar(node *yaml.RNode) error {
+	if !yaml.IsYNodeString(node.YNode()) {
+		return nil
+	}
+	v := DoReplacements(node.YNode().Value, f.MappingFunc)
+	updateNodeValue(node.YNode(), v)
+	return nil
+}
+
+func (f Filter) setMap(node *yaml.RNode) error {
+	contents := node.YNode().Content
+	for i := 0; i < len(contents); i += 2 {
+		if !yaml.IsYNodeString(contents[i]) {
+			return fmt.Errorf(
+				"invalid map key: value='%s', tag='%s'",
+				contents[i].Value, contents[i].Tag)
+		}
+		if !yaml.IsYNodeString(contents[i+1]) {
+			continue
+		}
+		newValue := DoReplacements(contents[i+1].Value, f.MappingFunc)
+		updateNodeValue(contents[i+1], newValue)
+	}
+	return nil
+}
+
+func (f Filter) setSeq(node *yaml.RNode) error {
+	for _, item := range node.YNode().Content {
+		if !yaml.IsYNodeString(item) {
+			return fmt.Errorf("invalid value type expect a string")
+		}
+		newValue := DoReplacements(item.Value, f.MappingFunc)
+		updateNodeValue(item, newValue)
+	}
+	return nil
+}

api/filters/refvar/refvar_test.go

@@ -0,0 +1,299 @@
+package refvar_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	. "sigs.k8s.io/kustomize/api/filters/refvar"
+	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+var makeMf = func(theMap map[string]interface{}) MappingFunc {
+	ignored := make(map[string]int)
+	return MakePrimitiveReplacer(ignored, theMap)
+}
+
+func TestFilter(t *testing.T) {
+
+	testCases := map[string]struct {
+		input    string
+		expected string
+		filter   Filter
+	}{
+		"simple scalar": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+spec:
+  replicas: $(VAR)`,
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+spec:
+  replicas: 5`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					"VAR": int64(5),
+				}),
+				FieldSpec: types.FieldSpec{Path: "spec/replicas"},
+			},
+		},
+		"non-string scalar": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+spec:
+  replicas: 1`,
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+spec:
+  replicas: 1`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					"VAR": int64(5),
+				}),
+				FieldSpec: types.FieldSpec{Path: "spec/replicas"},
+			},
+		},
+		"wrong path": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+spec:
+  replicas: 1`,
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+spec:
+  replicas: 1`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					"VAR": int64(5),
+				}),
+				FieldSpec: types.FieldSpec{Path: "a/b/c"},
+			},
+		},
+		"sequence": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+- $(FOO)
+- $(BAR)
+- $(BAZ)
+- $(FOO)+$(BAR)
+- $(BOOL)
+- $(FLOAT)`,
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+- foo
+- bar
+- $(BAZ)
+- foo+bar
+- false
+- 1.23`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					"FOO":   "foo",
+					"BAR":   "bar",
+					"BOOL":  false,
+					"FLOAT": 1.23,
+				}),
+				FieldSpec: types.FieldSpec{Path: "data"},
+			},
+		},
+		"maps": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  FOO: $(FOO)
+  BAR: $(BAR)
+  BAZ: $(BAZ)
+  PLUS: $(FOO)+$(BAR)`,
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  FOO: foo
+  BAR: bar
+  BAZ: $(BAZ)
+  PLUS: foo+bar`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					"FOO": "foo",
+					"BAR": "bar",
+				}),
+				FieldSpec: types.FieldSpec{Path: "data"},
+			},
+		},
+		"complicated case": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  slice1:
+  - $(FOO)
+  slice2:
+    FOO: $(FOO)
+    BAR: $(BAR)
+    BOOL: false
+    INT: 0
+    SLICE:
+    - $(FOO)`,
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  slice1:
+  - $(FOO)
+  slice2:
+    FOO: foo
+    BAR: bar
+    BOOL: false
+    INT: 0
+    SLICE:
+    - $(FOO)`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					"FOO": "foo",
+					"BAR": "bar",
+				}),
+				FieldSpec: types.FieldSpec{Path: "data/slice2"},
+			},
+		},
+		"null value": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  FOO: null`,
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  FOO: null`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					// no replacements!
+				}),
+				FieldSpec: types.FieldSpec{Path: "data/FOO"},
+			},
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			if !assert.Equal(t,
+				strings.TrimSpace(tc.expected),
+				strings.TrimSpace(
+					filtertest_test.RunFilter(t, tc.input, tc.filter))) {
+				t.FailNow()
+			}
+		})
+	}
+}
+
+func TestFilterUnhappy(t *testing.T) {
+	testCases := map[string]struct {
+		input         string
+		expectedError string
+		filter        Filter
+	}{
+		"non-string in sequence": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  slice:
+  - false`,
+			expectedError: `considering field 'data/slice' of object
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+  annotations:
+    config.kubernetes.io/index: '0'
+data:
+  slice:
+  - false
+: invalid value type expect a string`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					"VAR": int64(5),
+				}),
+				FieldSpec: types.FieldSpec{Path: "data/slice"},
+			},
+		},
+		"invalid key in map": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  1: str`,
+			expectedError: `considering field 'data' of object
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+  annotations:
+    config.kubernetes.io/index: '0'
+data:
+  1: str
+: invalid map key: value='1', tag='` + yaml.NodeTagInt + `'`,
+			filter: Filter{
+				MappingFunc: makeMf(map[string]interface{}{
+					"VAR": int64(5),
+				}),
+				FieldSpec: types.FieldSpec{Path: "data"},
+			},
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			_, err := filtertest_test.RunFilterE(t, tc.input, tc.filter)
+			if !assert.EqualError(t, err, tc.expectedError) {
+				t.FailNow()
+			}
+		})
+	}
+}

api/filters/replicacount/example_test.go

@@ -33,10 +33,8 @@ spec:
 				Count: 42,
 				Name:  "instance",
 			},
-			FsSlice: types.FsSlice{
-				{
-					Path: "spec/template/replicas",
-				},
+			FieldSpec: types.FieldSpec{
+				Path: "spec/template/replicas",
 			},
 		}},
 		Outputs: []kio.Writer{kio.ByteWriter{Writer: os.Stdout}},

api/filters/replicacount/replicacount.go

@@ -3,7 +3,8 @@ package replicacount
 import (
 	"strconv"
 
-	"sigs.k8s.io/kustomize/api/filters/fsslice"
+	"sigs.k8s.io/kustomize/api/filters/fieldspec"
+	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
@@ -11,10 +12,8 @@ import (
 
 // Filter updates/sets replicas fields using the fieldSpecs
 type Filter struct {
-	Replica types.Replica `json:"replica,omitempty" yaml:"replica,omitempty"`
-
-	// FsSlice contains the FieldSpecs to locate the namespace field
-	FsSlice types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
+	Replica   types.Replica   `json:"replica,omitempty" yaml:"replica,omitempty"`
+	FieldSpec types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
 }
 
 var _ kio.Filter = Filter{}
@@ -23,27 +22,16 @@ func (rc Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	return kio.FilterAll(yaml.FilterFunc(rc.run)).Filter(nodes)
 }
 
-// run processes each node individually.
 func (rc Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
-	meta, err := node.GetMeta()
-	if err != nil {
-		return nil, err
-	}
-
-	// only update resources where the name matches the Replica name.
-	if meta.Name != rc.Replica.Name {
-		return node, nil
-	}
-
-	err = node.PipeE(fsslice.Filter{
-		FsSlice:    rc.FsSlice,
+	err := node.PipeE(fieldspec.Filter{
+		FieldSpec:  rc.FieldSpec,
 		SetValue:   rc.set,
 		CreateKind: yaml.ScalarNode, // replicas is a ScalarNode
-		CreateTag:  yaml.IntTag,
+		CreateTag:  yaml.NodeTagInt,
 	})
 	return node, err
 }
 
 func (rc Filter) set(node *yaml.RNode) error {
-	return fsslice.SetScalar(strconv.FormatInt(rc.Replica.Count, 10))(node)
+	return filtersutil.SetScalar(strconv.FormatInt(rc.Replica.Count, 10))(node)
 }

api/filters/replicacount/replicacount_test.go

@@ -5,19 +5,16 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
 	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
 	"sigs.k8s.io/kustomize/api/types"
 )
 
 func TestFilter(t *testing.T) {
-	var config = builtinconfig.MakeDefaultConfig()
 
 	testCases := map[string]struct {
 		input    string
 		expected string
 		filter   Filter
-		fsslice  types.FsSlice
 	}{
 		"update field": {
 			input: `
@@ -41,11 +38,7 @@ spec:
 					Name:  "dep",
 					Count: 42,
 				},
-			},
-			fsslice: types.FsSlice{
-				{
-					Path: "spec/replicas",
-				},
+				FieldSpec: types.FieldSpec{Path: "spec/replicas"},
 			},
 		},
 		"add field": {
@@ -73,9 +66,7 @@ spec:
 					Name:  "cus",
 					Count: 42,
 				},
-			},
-			fsslice: types.FsSlice{
-				{
+				FieldSpec: types.FieldSpec{
 					Path:               "spec/template/replicas",
 					CreateIfNotPresent: true,
 				},
@@ -108,9 +99,7 @@ spec:
 					Name:  "cus",
 					Count: 42,
 				},
-			},
-			fsslice: types.FsSlice{
-				{
+				FieldSpec: types.FieldSpec{
 					Path:               "spec/template/replicas",
 					CreateIfNotPresent: true,
 				},
@@ -140,9 +129,7 @@ spec:
 					Name:  "cus",
 					Count: 42,
 				},
-			},
-			fsslice: types.FsSlice{
-				{
+				FieldSpec: types.FieldSpec{
 					Path: "spec/template/replicas",
 				},
 			},
@@ -154,7 +141,6 @@ kind: Custom
 metadata:
   name: cus
 spec:
-  replicas: 5
   template:
     replicas: 5
 `,
@@ -164,7 +150,6 @@ kind: Custom
 metadata:
   name: cus
 spec:
-  replicas: 42
   template:
     replicas: 42
 `,
@@ -173,21 +158,13 @@ spec:
 					Name:  "cus",
 					Count: 42,
 				},
-			},
-			fsslice: types.FsSlice{
-				{
-					Path: "spec/template/replicas",
-				},
-				{
-					Path: "spec/replicas",
-				},
+				FieldSpec: types.FieldSpec{Path: "spec/template/replicas"},
 			},
 		},
 	}
 
 	for tn, tc := range testCases {
 		t.Run(tn, func(t *testing.T) {
-			tc.filter.FsSlice = append(config.Replicas, tc.fsslice...)
 			if !assert.Equal(t,
 				strings.TrimSpace(tc.expected),
 				strings.TrimSpace(

api/filters/valueadd/valueadd.go

@@ -98,7 +98,17 @@ var _ kio.Filter = Filter{}
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	_, err := kio.FilterAll(yaml.FilterFunc(
 		func(node *yaml.RNode) (*yaml.RNode, error) {
-			fields := strings.Split(f.FieldPath, "/")
+			var fields []string
+			// if there is forward slash '/' in the field name, a back slash '\'
+			// will be used to escape it.
+			for _, f := range strings.Split(f.FieldPath, "/") {
+				if len(fields) > 0 && strings.HasSuffix(fields[len(fields)-1], "\\") {
+					concatField := strings.TrimSuffix(fields[len(fields)-1], "\\") + "/" + f
+					fields = append(fields[:len(fields)-1], concatField)
+				} else {
+					fields = append(fields, f)
+				}
+			}
 			// TODO: support SequenceNode.
 			// Presumably here one could look for array indices (digits) at
 			// the end of the field path (as described in IETF RFC 6902 JSON),

api/filters/valueadd/valueadd_test.go

@@ -94,6 +94,20 @@ spec:
 				FilePathPosition: 2,
 			},
 		},
+		"backSlash": {
+			input: `
+kind: SomeKind
+`,
+			expectedOutput: `
+kind: SomeKind
+spec:
+  resourceRef/external: valueAdded
+`,
+			filter: Filter{
+				Value:     "valueAdded",
+				FieldPath: "spec/resourceRef\\/external",
+			},
+		},
 	}
 
 	for tn, tc := range testCases {

api/go.mod

@@ -1,21 +1,18 @@
 module sigs.k8s.io/kustomize/api
 
-go 1.14
+go 1.15
 
 require (
 	github.com/evanphx/json-patch v4.5.0+incompatible
+	github.com/go-errors/errors v1.0.1
 	github.com/go-openapi/spec v0.19.5
-	github.com/golangci/golangci-lint v1.21.0
+	github.com/google/go-cmp v0.4.0
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
-	github.com/pkg/errors v0.8.1
+	github.com/imdario/mergo v0.3.5
+	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.4.0
-	github.com/yujunz/go-getter v1.4.1-lite
-	golang.org/x/tools v0.0.0-20191010075000-0337d82405ff
 	gopkg.in/yaml.v2 v2.3.0
-	k8s.io/api v0.17.0
-	k8s.io/apimachinery v0.17.0
-	k8s.io/client-go v0.17.0
-	k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a
-	sigs.k8s.io/kustomize/kyaml v0.3.4
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
+	sigs.k8s.io/kustomize/kyaml v0.10.13
 	sigs.k8s.io/yaml v1.2.0
 )

api/go.sum

@@ -1,43 +1,21 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-github.com/360EntSecGroup-Skylar/excelize v1.4.1/go.mod h1:vnax29X2usfl7HHkBrX5EvSCJcmH3dT9luvxzu8iGAE=
-github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
-github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
-github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
-github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/OpenPeeDeeP/depguard v1.0.1 h1:VlW4R6jmBIv3/u1JNlawEvJMM4J+dPORPaZasQee8Us=
-github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
-github.com/PuerkitoBio/goquery v1.5.0/go.mod h1:qD2PgZ9lccMbQlc7eEOjaeRlFQON7xY8kdmcsrnKqMg=
-github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
-github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
-github.com/andybalholm/cascadia v1.0.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
-github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d h1:xDfNPAt8lFiC1UJrqV3uuy861HCTo708pDMbjHHdCas=
-github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d/go.mod h1:6QX/PXZ00z/TKoufEY6K/a0k6AhaJrQKdFe6OfVXsa4=
-github.com/bombsimon/wsl v1.2.5 h1:9gTOkIwVtoDZywvX802SDHokeX4kW1cKnV8ZTVAPkRs=
-github.com/bombsimon/wsl v1.2.5/go.mod h1:43lEF/i0kpXbLCeDXL9LMT8c92HyBywXb0AsgMHYngM=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
@@ -45,14 +23,10 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
-github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
-github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
-github.com/davecgh/go-spew v0.0.0-20151105211317-5215b55f46b2/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -60,33 +34,18 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZm
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
-github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
-github.com/dustmop/soup v1.1.2-0.20190516214245-38228baa104e/go.mod h1:CgNC6SGbT+Xb8wGGvzilttZL1mc5sQ/5KkcxsZttMIk=
-github.com/elazarl/goproxy v0.0.0-20170405201442-c4fc26588b6e/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
-github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633 h1:H2pdYOb3KQ1/YsqVWoWNLQO+fusocsw354rqGTZtAgw=
-github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
-github.com/evanphx/json-patch v4.2.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/evanphx/json-patch v4.5.0+incompatible h1:ouOWdg56aJriqS0huScTkVXPC5IcNrDCXZ6OoTAWu7M=
 github.com/evanphx/json-patch v4.5.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
-github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
-github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/ghodss/yaml v0.0.0-20150909031657-73d445a93680/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/globalsign/mgo v0.0.0-20180905125535-1ca0a4f7cbcb/go.mod h1:xkRDCp4j0OGD1HRkm4kmhM+pmpv3AKq5SU7GMg4oO/Q=
 github.com/globalsign/mgo v0.0.0-20181015135952-eeefdecb41b8/go.mod h1:xkRDCp4j0OGD1HRkm4kmhM+pmpv3AKq5SU7GMg4oO/Q=
-github.com/go-critic/go-critic v0.3.5-0.20190904082202-d79a9f0c64db h1:GYXWx7Vr3+zv833u+8IoXbNnQY0AdXsxAgI0kX7xcwA=
-github.com/go-critic/go-critic v0.3.5-0.20190904082202-d79a9f0c64db/go.mod h1:+sE8vrLDS2M0pZkBk0wy6+nLdKexVDrl/jBqQOTDThA=
 github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
-github.com/go-lintpack/lintpack v0.5.2 h1:DI5mA3+eKdWeJ40nU4d6Wc26qmdG8RCi/btYq0TuRN0=
-github.com/go-lintpack/lintpack v0.5.2/go.mod h1:NwZuYi2nUHho8XEIZ6SIxihrnPoqBTDqfpXvXAN0sXM=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
-github.com/go-logr/logr v0.1.0/go.mod h1:ixOQHD9gLJUVQQ2ZOR7zLEifBX6tGkNJF4QyIY7sIas=
-github.com/go-ole/go-ole v1.2.1/go.mod h1:7FAglXiTm7HKlQRDeOQ6ZNUHidzCWXuZWq/1dTyBNF8=
 github.com/go-openapi/analysis v0.0.0-20180825180245-b006789cd277/go.mod h1:k70tL6pCuVxPJOHXQ+wIac1FUrvNkHolPie/cLEU6hI=
 github.com/go-openapi/analysis v0.17.0/go.mod h1:IowGgpVeD0vNm45So8nr+IcQ3pxVtpRoBWb8PVZO0ik=
 github.com/go-openapi/analysis v0.18.0/go.mod h1:IowGgpVeD0vNm45So8nr+IcQ3pxVtpRoBWb8PVZO0ik=
@@ -95,13 +54,11 @@ github.com/go-openapi/analysis v0.19.5/go.mod h1:hkEAkxagaIvIP7VTn8ygJNkd4kAYON2
 github.com/go-openapi/errors v0.17.0/go.mod h1:LcZQpmvG4wyF5j4IhA73wkLFQg+QJXOQHVjmcZxhka0=
 github.com/go-openapi/errors v0.18.0/go.mod h1:LcZQpmvG4wyF5j4IhA73wkLFQg+QJXOQHVjmcZxhka0=
 github.com/go-openapi/errors v0.19.2/go.mod h1:qX0BLWsyaKfvhluLejVpVNwNRdXZhEbTA4kxxpKBC94=
-github.com/go-openapi/jsonpointer v0.0.0-20160704185906-46af16f9f7b1/go.mod h1:+35s3my2LFTysnkMfxsJBAMHj/DoqoB9knIWoYG/Vk0=
 github.com/go-openapi/jsonpointer v0.17.0/go.mod h1:cOnomiV+CVVwFLk0A/MExoFMjwdsUdVpsRhURCKh+3M=
 github.com/go-openapi/jsonpointer v0.18.0/go.mod h1:cOnomiV+CVVwFLk0A/MExoFMjwdsUdVpsRhURCKh+3M=
 github.com/go-openapi/jsonpointer v0.19.2/go.mod h1:3akKfEdA7DF1sugOqz1dVQHBcuDBPKZGEoHC/NkiQRg=
 github.com/go-openapi/jsonpointer v0.19.3 h1:gihV7YNZK1iK6Tgwwsxo2rJbD1GTbdm72325Bq8FI3w=
 github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
-github.com/go-openapi/jsonreference v0.0.0-20160704190145-13c6e3589ad9/go.mod h1:W3Z9FmVs9qj+KR4zFKmDPGiLdk1D9Rlm7cyMvf57TTg=
 github.com/go-openapi/jsonreference v0.17.0/go.mod h1:g4xxGn04lDIRh0GJb5QlpE3HfopLOL6uZrK/VgnsK9I=
 github.com/go-openapi/jsonreference v0.18.0/go.mod h1:g4xxGn04lDIRh0GJb5QlpE3HfopLOL6uZrK/VgnsK9I=
 github.com/go-openapi/jsonreference v0.19.2/go.mod h1:jMjeRr2HHw6nAVajTXJ4eiUwohSTlpa0o73RUL1owJc=
@@ -115,7 +72,6 @@ github.com/go-openapi/loads v0.19.4/go.mod h1:zZVHonKd8DXyxyw4yfnVjPzBjIQcLt0CCs
 github.com/go-openapi/runtime v0.0.0-20180920151709-4f900dc2ade9/go.mod h1:6v9a6LTXWQCdL8k1AO3cvqx5OtZY/Y9wKTgaoP6YRfA=
 github.com/go-openapi/runtime v0.19.0/go.mod h1:OwNfisksmmaZse4+gpV3Ne9AyMOlP1lt4sK4FXt0O64=
 github.com/go-openapi/runtime v0.19.4/go.mod h1:X277bwSUBxVlCYR3r7xgZZGKVvBd/29gLDlFGtJ8NL4=
-github.com/go-openapi/spec v0.0.0-20160808142527-6aced65f8501/go.mod h1:J8+jY1nAiCcj+friV/PDoE1/3eeccG9LYBs0tYvLOWc=
 github.com/go-openapi/spec v0.17.0/go.mod h1:XkF/MOi14NmjsfZ8VtAKf8pIlbZzyoTvZsdfssdxcBI=
 github.com/go-openapi/spec v0.18.0/go.mod h1:XkF/MOi14NmjsfZ8VtAKf8pIlbZzyoTvZsdfssdxcBI=
 github.com/go-openapi/spec v0.19.2/go.mod h1:sCxk3jxKgioEJikev4fgkNmwS+3kuYdJtcsZsD5zxMY=
@@ -127,7 +83,6 @@ github.com/go-openapi/strfmt v0.18.0/go.mod h1:P82hnJI0CXkErkXi8IKjPbNBM6lV6+5pL
 github.com/go-openapi/strfmt v0.19.0/go.mod h1:+uW+93UVvGGq2qGaZxdDeJqSAqBqBdl+ZPMF/cC8nDY=
 github.com/go-openapi/strfmt v0.19.3/go.mod h1:0yX7dbo8mKIvc3XSKp7MNfxw4JytCfCD6+bY1AVL9LU=
 github.com/go-openapi/strfmt v0.19.5/go.mod h1:eftuHTlB/dI8Uq8JJOyRlieZf+WkkxUuk0dgdHXr2Qk=
-github.com/go-openapi/swag v0.0.0-20160704191624-1d0bd113de87/go.mod h1:DXUve3Dpr1UfpPtxFw+EFuQ41HhCWZfha5jSVRG7C7I=
 github.com/go-openapi/swag v0.17.0/go.mod h1:AByQ+nYG6gQg71GINrmuDXCPWdL640yX49/kXLo40Tg=
 github.com/go-openapi/swag v0.18.0/go.mod h1:AByQ+nYG6gQg71GINrmuDXCPWdL640yX49/kXLo40Tg=
 github.com/go-openapi/swag v0.19.2/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
@@ -137,130 +92,40 @@ github.com/go-openapi/validate v0.18.0/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+
 github.com/go-openapi/validate v0.19.2/go.mod h1:1tRCw7m3jtI8eNWEEliiAqUIcBztB2KDnRCRMUi7GTA=
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-golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20181011042414-1f849cf54d09/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20181117154741-2ddaf7f79a09/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190110163146-51295c7ec13a/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190125232054-d66bd3c5d5a6/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190311215038-5c2858a9cfe5/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190322203728-c1a832b0ad89/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190521203540-521d6ed310dd/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190614205625-5aca471b1d59/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190617190820-da514acc4774/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
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-golang.org/x/tools v0.0.0-20190910044552-dd2b5c81c578/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20190930201159-7c411dea38b0/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191010075000-0337d82405ff h1:XdBG6es/oFDr1HwaxkxgVve7NB281QhxgK/i4voubFs=
-golang.org/x/tools v0.0.0-20191010075000-0337d82405ff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
-google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
@@ -538,53 +272,19 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
-gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
-gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
-gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
-gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v3 v3.0.0-20191120175047-4206685974f2 h1:XZx7nhd5GMaZpmDaEHFVafUZC7ya0fuo7cSJ3UCKYmM=
-gopkg.in/yaml.v3 v3.0.0-20191120175047-4206685974f2/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
-honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-k8s.io/api v0.17.0 h1:H9d/lw+VkZKEVIUc8F3wgiQ+FUXTTr21M87jXLU7yqM=
-k8s.io/api v0.17.0/go.mod h1:npsyOePkeP0CPwyGfXDHxvypiYMJxBWAMpQxCaJ4ZxI=
-k8s.io/apimachinery v0.17.0 h1:xRBnuie9rXcPxUkDizUsGvPf1cnlZCFu210op7J7LJo=
-k8s.io/apimachinery v0.17.0/go.mod h1:b9qmWdKlLuU9EBh+06BtLcSf/Mu89rWL33naRxs1uZg=
-k8s.io/client-go v0.17.0 h1:8QOGvUGdqDMFrm9sD6IUFl256BcffynGoe80sxgTEDg=
-k8s.io/client-go v0.17.0/go.mod h1:TYgR6EUHs6k45hb6KWjVD6jFZvJV4gHDikv/It0xz+k=
-k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
-k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
-k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
-k8s.io/klog v1.0.0 h1:Pt+yjF5aB1xDSVbau4VsWe+dQNzA0qv1LlXdC2dF6Q8=
-k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
-k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a h1:UcxjrRMyNx/i/y8G7kPvLyy7rfbeuf1PYyBf973pgyU=
-k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
-k8s.io/utils v0.0.0-20191114184206-e782cd3c129f/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed h1:WX1yoOaKQfddO/mLzdV4wptyWgoH/6hwLs7QHTixo0I=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b h1:DxJ5nJdkhDlLok9K6qO+5290kphDJbHOQO1DFFFTeBo=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f h1:Cq7MalBHYACRd6EesksG1Q8EoIAKOsiZviGKbOLIej4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw=
-sigs.k8s.io/kustomize/kyaml v0.3.4 h1:RhxnabYltv4mdD5+I7pIaJtae+eaTn4TiZqPT7K+C7A=
-sigs.k8s.io/kustomize/kyaml v0.3.4/go.mod h1:XJL84E6sOFeNrQ7CADiemc1B0EjIxHo3OhW4o1aJYNw=
-sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
-sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/kustomize/kyaml v0.10.13 h1:edizZj6kVwFgE2Wy6cpzt+qacKmjgGoTBzNtAz6+Cl4=
+sigs.k8s.io/kustomize/kyaml v0.10.13/go.mod h1:JX33L0fyBEfdkidfYQwF50t7UrjatnF+j0F9ikkhTWI=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4 h1:JPJh2pk3+X4lXAkZIk2RuE/7/FoK9maXw+TNPJhVS/c=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

api/hasher/hasher.go

@@ -8,6 +8,8 @@ import (
 	"encoding/json"
 	"fmt"
 	"sort"
+
+	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 // SortArrayAndComputeHash sorts a string array and
@@ -50,3 +52,105 @@ func Encode(hex string) (string, error) {
 func Hash(data string) string {
 	return fmt.Sprintf("%x", sha256.Sum256([]byte(data)))
 }
+
+// HashRNode returns the hash value of input RNode
+func HashRNode(node *yaml.RNode) (string, error) {
+	// get node kind
+	kindNode, err := node.Pipe(yaml.FieldMatcher{Name: "kind"})
+	if err != nil {
+		return "", err
+	}
+	kind := kindNode.YNode().Value
+
+	// calculate hash for different kinds
+	encoded := ""
+	switch kind {
+	case "ConfigMap":
+		encoded, err = encodeConfigMap(node)
+	case "Secret":
+		encoded, err = encodeSecret(node)
+	default:
+		var encodedBytes []byte
+		encodedBytes, err = json.Marshal(node.YNode())
+		encoded = string(encodedBytes)
+	}
+	if err != nil {
+		return "", err
+	}
+	return Encode(Hash(encoded))
+}
+
+func getNodeValues(node *yaml.RNode, paths []string) (map[string]interface{}, error) {
+	values := make(map[string]interface{})
+	for _, p := range paths {
+		vn, err := node.Pipe(yaml.Lookup(p))
+		if err != nil {
+			return map[string]interface{}{}, err
+		}
+		if vn == nil {
+			values[p] = ""
+			continue
+		}
+		if vn.YNode().Kind != yaml.ScalarNode {
+			vs, err := vn.MarshalJSON()
+			if err != nil {
+				return map[string]interface{}{}, err
+			}
+			// data, binaryData and stringData are all maps
+			var v map[string]interface{}
+			json.Unmarshal(vs, &v)
+			values[p] = v
+		} else {
+			values[p] = vn.YNode().Value
+		}
+	}
+	return values, nil
+}
+
+// encodeConfigMap encodes a ConfigMap.
+// Data, Kind, and Name are taken into account.
+// BinaryData is included if it's not empty to avoid useless key in output.
+func encodeConfigMap(node *yaml.RNode) (string, error) {
+	// get fields
+	paths := []string{"metadata/name", "data", "binaryData"}
+	values, err := getNodeValues(node, paths)
+	if err != nil {
+		return "", err
+	}
+	m := map[string]interface{}{"kind": "ConfigMap", "name": values["metadata/name"],
+		"data": values["data"]}
+	if _, ok := values["binaryData"].(map[string]interface{}); ok {
+		m["binaryData"] = values["binaryData"]
+	}
+
+	// json.Marshal sorts the keys in a stable order in the encoding
+	data, err := json.Marshal(m)
+	if err != nil {
+		return "", err
+	}
+	return string(data), nil
+}
+
+// encodeSecret encodes a Secret.
+// Data, Kind, Name, and Type are taken into account.
+// StringData is included if it's not empty to avoid useless key in output.
+func encodeSecret(node *yaml.RNode) (string, error) {
+	// get fields
+	paths := []string{"type", "metadata/name", "data", "stringData"}
+	values, err := getNodeValues(node, paths)
+	if err != nil {
+		return "", err
+	}
+	m := map[string]interface{}{"kind": "Secret", "type": values["type"],
+		"name": values["metadata/name"], "data": values["data"]}
+	if _, ok := values["stringData"].(map[string]interface{}); ok {
+		m["stringData"] = values["stringData"]
+	}
+
+	// json.Marshal sorts the keys in a stable order in the encoding
+	data, err := json.Marshal(m)
+	if err != nil {
+		return "", err
+	}
+	return string(data), nil
+}

api/hasher/hasher_test.go

@@ -1,12 +1,13 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package hasher_test
+package hasher
 
 import (
+	"strings"
 	"testing"
 
-	. "sigs.k8s.io/kustomize/api/hasher"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 func TestSortArrayAndComputeHash(t *testing.T) {
@@ -39,3 +40,314 @@ func TestHash(t *testing.T) {
 		t.Errorf("expected hash %q but got %q", expect, sum)
 	}
 }
+
+func TestConfigMapHash(t *testing.T) {
+	cases := []struct {
+		desc   string
+		cmYaml string
+		hash   string
+		err    string
+	}{
+		// empty map
+		{"empty data", `
+apiVersion: v1
+kind: ConfigMap`, "6ct58987ht", ""},
+		// one key
+		{"one key", `
+apiVersion: v1
+kind: ConfigMap
+data: 
+  one: ""`, "9g67k2htb6", ""},
+		// three keys (tests sorting order)
+		{"three keys", `
+apiVersion: v1
+kind: ConfigMap
+data:
+  two: 2
+  one: ""
+  three: 3`, "7757f9kkct", ""},
+		// empty binary data map
+		{"empty binary data", `
+apiVersion: v1
+kind: ConfigMap`, "6ct58987ht", ""},
+		// one key with binary data
+		{"one key with binary data", `
+apiVersion: v1
+kind: ConfigMap
+binaryData:
+  one: ""`, "6mtk2m274t", ""},
+		// three keys with binary data (tests sorting order)
+		{"three keys with binary data", `
+apiVersion: v1
+kind: ConfigMap
+binaryData:
+  two: 2
+  one: ""
+  three: 3`, "9th7kc28dg", ""},
+		// two keys, one with string and another with binary data
+		{"two keys with one each", `
+apiVersion: v1
+kind: ConfigMap
+data:
+  one: ""
+binaryData:
+  two: ""`, "698h7c7t9m", ""},
+	}
+
+	for _, c := range cases {
+		node, err := yaml.Parse(c.cmYaml)
+		if err != nil {
+			t.Fatal(err)
+		}
+		h, err := HashRNode(node)
+		if SkipRest(t, c.desc, err, c.err) {
+			continue
+		}
+		if c.hash != h {
+			t.Errorf("case %q, expect hash %q but got %q", c.desc, c.hash, h)
+		}
+	}
+}
+
+func TestSecretHash(t *testing.T) {
+	cases := []struct {
+		desc       string
+		secretYaml string
+		hash       string
+		err        string
+	}{
+		// empty map
+		{"empty data", `
+apiVersion: v1
+kind: Secret
+type: my-type`, "5gmgkf8578", ""},
+		// one key
+		{"one key", `
+apiVersion: v1
+kind: Secret
+type: my-type
+data:
+  one: ""`, "74bd68bm66", ""},
+		// three keys (tests sorting order)
+		{"three keys", `
+apiVersion: v1
+kind: Secret
+type: my-type
+data:
+  two: 2
+  one: ""
+  three: 3`, "4gf75c7476", ""},
+		// with stringdata
+		{"stringdata", `
+apiVersion: v1
+kind: Secret
+type: my-type
+data:
+  one: ""
+stringData:
+  two: 2`, "c4h4264gdb", ""},
+		// empty stringdata
+		{"empty stringdata", `
+apiVersion: v1
+kind: Secret
+type: my-type
+data:
+  one: ""`, "74bd68bm66", ""},
+	}
+
+	for _, c := range cases {
+		node, err := yaml.Parse(c.secretYaml)
+		if err != nil {
+			t.Fatal(err)
+		}
+		h, err := HashRNode(node)
+		if SkipRest(t, c.desc, err, c.err) {
+			continue
+		}
+		if c.hash != h {
+			t.Errorf("case %q, expect hash %q but got %q", c.desc, c.hash, h)
+		}
+	}
+}
+
+func TestUnstructuredHash(t *testing.T) {
+	cases := []struct {
+		desc         string
+		unstructured string
+		hash         string
+		err          string
+	}{
+		{"minimal", `
+apiVersion: test/v1
+kind: TestResource
+metadata:
+  name: my-resource`, "244782mkb7", ""},
+		{"with spec", `
+apiVersion: test/v1
+kind: TestResource
+metadata:
+  name: my-resource
+spec:
+  foo: 1
+  bar: abc`, "59m2mdccg4", ""},
+	}
+
+	for _, c := range cases {
+		node, err := yaml.Parse(c.unstructured)
+		if err != nil {
+			t.Fatal(err)
+		}
+		h, err := HashRNode(node)
+		if SkipRest(t, c.desc, err, c.err) {
+			continue
+		}
+		if c.hash != h {
+			t.Errorf("case %q, expect hash %q but got %q", c.desc, c.hash, h)
+		}
+	}
+}
+
+func TestEncodeConfigMap(t *testing.T) {
+	cases := []struct {
+		desc   string
+		cmYaml string
+		expect string
+		err    string
+	}{
+		// empty map
+		{"empty data", `
+apiVersion: v1
+kind: ConfigMap`, `{"data":"","kind":"ConfigMap","name":""}`, ""},
+		// one key
+		{"one key", `
+apiVersion: v1
+kind: ConfigMap
+data: 
+  one: ""`, `{"data":{"one":""},"kind":"ConfigMap","name":""}`, ""},
+		// three keys (tests sorting order)
+		{"three keys", `
+apiVersion: v1
+kind: ConfigMap
+data:
+  two: 2
+  one: ""
+  three: 3`, `{"data":{"one":"","three":3,"two":2},"kind":"ConfigMap","name":""}`, ""},
+		// empty binary map
+		{"empty data", `
+apiVersion: v1
+kind: ConfigMap`, `{"data":"","kind":"ConfigMap","name":""}`, ""},
+		// one key with binary data
+		{"one key", `
+apiVersion: v1
+kind: ConfigMap
+binaryData:
+  one: ""`, `{"binaryData":{"one":""},"data":"","kind":"ConfigMap","name":""}`, ""},
+		// three keys with binary data (tests sorting order)
+		{"three keys", `
+apiVersion: v1
+kind: ConfigMap
+binaryData:
+  two: 2
+  one: ""
+  three: 3`, `{"binaryData":{"one":"","three":3,"two":2},"data":"","kind":"ConfigMap","name":""}`, ""},
+		// two keys, one string and one binary values
+		{"two keys with one each", `
+apiVersion: v1
+kind: ConfigMap
+data:
+  one: ""
+binaryData:
+  two: ""`, `{"binaryData":{"two":""},"data":{"one":""},"kind":"ConfigMap","name":""}`, ""},
+	}
+	for _, c := range cases {
+		node, err := yaml.Parse(c.cmYaml)
+		if err != nil {
+			t.Fatal(err)
+		}
+		s, err := encodeConfigMap(node)
+		if SkipRest(t, c.desc, err, c.err) {
+			continue
+		}
+		if s != c.expect {
+			t.Errorf("case %q, expect %q but got %q from encode %#v", c.desc, c.expect, s, c.cmYaml)
+		}
+	}
+}
+
+func TestEncodeSecret(t *testing.T) {
+	cases := []struct {
+		desc       string
+		secretYaml string
+		expect     string
+		err        string
+	}{
+		// empty map
+		{"empty data", `
+apiVersion: v1
+kind: Secret
+type: my-type`, `{"data":"","kind":"Secret","name":"","type":"my-type"}`, ""},
+		// one key
+		{"one key", `
+apiVersion: v1
+kind: Secret
+type: my-type
+data:
+  one: ""`, `{"data":{"one":""},"kind":"Secret","name":"","type":"my-type"}`, ""},
+		// three keys (tests sorting order) - note json.Marshal base64 encodes the values because they come in as []byte
+		{"three keys", `
+apiVersion: v1
+kind: Secret
+type: my-type
+data:
+  two: 2
+  one: ""
+  three: 3`, `{"data":{"one":"","three":3,"two":2},"kind":"Secret","name":"","type":"my-type"}`, ""},
+		// with stringdata
+		{"stringdata", `
+apiVersion: v1
+kind: Secret
+type: my-type
+data:
+  one: ""
+stringData:
+  two: 2`, `{"data":{"one":""},"kind":"Secret","name":"","stringData":{"two":2},"type":"my-type"}`, ""},
+		// empty stringdata
+		{"empty stringdata", `
+apiVersion: v1
+kind: Secret
+type: my-type
+data:
+  one: ""`, `{"data":{"one":""},"kind":"Secret","name":"","type":"my-type"}`, ""},
+	}
+	for _, c := range cases {
+		node, err := yaml.Parse(c.secretYaml)
+		if err != nil {
+			t.Fatal(err)
+		}
+		s, err := encodeSecret(node)
+		if SkipRest(t, c.desc, err, c.err) {
+			continue
+		}
+		if s != c.expect {
+			t.Errorf("case %q, expect %q but got %q from encode %#v", c.desc, c.expect, s, c.secretYaml)
+		}
+	}
+}
+
+// SkipRest returns true if there was a non-nil error or if we expected an error that didn't happen,
+// and logs the appropriate error on the test object.
+// The return value indicates whether we should skip the rest of the test case due to the error result.
+func SkipRest(t *testing.T, desc string, err error, contains string) bool {
+	if err != nil {
+		if len(contains) == 0 {
+			t.Errorf("case %q, expect nil error but got %q", desc, err.Error())
+		} else if !strings.Contains(err.Error(), contains) {
+			t.Errorf("case %q, expect error to contain %q but got %q", desc, contains, err.Error())
+		}
+		return true
+	} else if len(contains) > 0 {
+		t.Errorf("case %q, expect error to contain %q but got nil error", desc, contains)
+		return true
+	}
+	return false
+}

api/ifc/ifc.go

@@ -38,35 +38,76 @@ type Loader interface {
 	Cleanup() error
 }
 
-// Kunstructured allows manipulation of k8s objects
-// that do not have Golang structs.
+// Kunstructured represents a Kubernetes Resource Model object.
 type Kunstructured interface {
+	// Several uses.
 	Copy() Kunstructured
+
+	// GetAnnotations returns the k8s annotations.
 	GetAnnotations() map[string]string
-	GetBool(path string) (bool, error)
+
+	// GetData returns a top-level "data" field, as in a ConfigMap.
+	GetDataMap() map[string]string
+
+	// GetData returns a top-level "binaryData" field, as in a ConfigMap.
+	GetBinaryDataMap() map[string]string
+
+	// Used by ResAccumulator and ReplacementTransformer.
 	GetFieldValue(string) (interface{}, error)
-	GetFloat64(path string) (float64, error)
+
+	// Used by Resource.OrgId
 	GetGvk() resid.Gvk
-	GetInt64(path string) (int64, error)
+
+	// Used by resource.Factory.SliceFromBytes
 	GetKind() string
+
+	// GetLabels returns the k8s labels.
 	GetLabels() map[string]string
-	GetMap(path string) (map[string]interface{}, error)
+
+	// Used by Resource.CurId and resource factory.
 	GetName() string
+
+	// Used by special case code in
+	// ResMap.SubsetThatCouldBeReferencedByResource
 	GetSlice(path string) ([]interface{}, error)
+
+	// GetString returns the value of a string field.
+	// Used by Resource.GetNamespace
 	GetString(string) (string, error)
-	GetStringMap(path string) (map[string]string, error)
-	GetStringSlice(string) ([]string, error)
+
+	// Several uses.
 	Map() map[string]interface{}
+
+	// Used by Resource.AsYAML and Resource.String
 	MarshalJSON() ([]byte, error)
+
+	// Used by resWrangler.Select
 	MatchesAnnotationSelector(selector string) (bool, error)
+
+	// Used by resWrangler.Select
 	MatchesLabelSelector(selector string) (bool, error)
-	Patch(Kunstructured) error
+
+	// SetAnnotations replaces the k8s annotations.
 	SetAnnotations(map[string]string)
+
+	// SetDataMap sets a top-level "data" field, as in a ConfigMap.
+	SetDataMap(map[string]string)
+
+	// SetDataMap sets a top-level "binaryData" field, as in a ConfigMap.
+	SetBinaryDataMap(map[string]string)
+	// Used by PatchStrategicMergeTransformer.
 	SetGvk(resid.Gvk)
+
+	// SetLabels replaces the k8s labels.
 	SetLabels(map[string]string)
-	SetMap(map[string]interface{})
+
+	// SetName changes the name.
 	SetName(string)
+
+	// SetNamespace changes the namespace.
 	SetNamespace(string)
+
+	// Needed, for now, by kyaml/filtersutil.ApplyToJSON.
 	UnmarshalJSON([]byte) error
 }
 

api/internal/accumulator/loadconfigfromcrds.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/go-openapi/spec"
 	"github.com/pkg/errors"
-	"k8s.io/kube-openapi/pkg/common"
 	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
@@ -18,8 +17,16 @@ import (
 	"sigs.k8s.io/yaml"
 )
 
+// OpenAPIDefinition describes single type.
+// Normally these definitions are auto-generated using gen-openapi.
+// Same as in k8s.io / kube-openapi / pkg / common.
+type OpenAPIDefinition struct {
+	Schema       spec.Schema
+	Dependencies []string
+}
+
 type myProperties map[string]spec.Schema
-type nameToApiMap map[string]common.OpenAPIDefinition
+type nameToApiMap map[string]OpenAPIDefinition
 
 // LoadConfigFromCRDs parse CRD schemas from paths into a TransformerConfig
 func LoadConfigFromCRDs(
@@ -162,7 +169,7 @@ func loadCrdIntoConfig(
 				err = theConfig.AddNamereferenceFieldSpec(
 					builtinconfig.NameBackReferences{
 						Gvk: resid.Gvk{Kind: kind, Version: version},
-						FieldSpecs: []types.FieldSpec{
+						Referrers: []types.FieldSpec{
 							makeFs(theGvk, append(path, propName, nameKey))},
 					})
 				if err != nil {

api/internal/accumulator/loadconfigfromcrds_test.go

@@ -8,10 +8,9 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/api/filesys"
-	"sigs.k8s.io/kustomize/api/loader"
-
 	. "sigs.k8s.io/kustomize/api/internal/accumulator"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
+	"sigs.k8s.io/kustomize/api/loader"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/types"
 )
@@ -140,21 +139,19 @@ func TestLoadCRDs(t *testing.T) {
 	nbrs := []builtinconfig.NameBackReferences{
 		{
 			Gvk: resid.Gvk{Kind: "Secret", Version: "v1"},
-			FieldSpecs: []types.FieldSpec{
+			Referrers: []types.FieldSpec{
 				{
-					CreateIfNotPresent: false,
-					Gvk:                resid.Gvk{Kind: "MyKind"},
-					Path:               "spec/secretRef/name",
+					Gvk:  resid.Gvk{Kind: "MyKind"},
+					Path: "spec/secretRef/name",
 				},
 			},
 		},
 		{
 			Gvk: resid.Gvk{Kind: "Bee", Version: "v1beta1"},
-			FieldSpecs: []types.FieldSpec{
+			Referrers: []types.FieldSpec{
 				{
-					CreateIfNotPresent: false,
-					Gvk:                resid.Gvk{Kind: "MyKind"},
-					Path:               "spec/beeRef/name",
+					Gvk:  resid.Gvk{Kind: "MyKind"},
+					Path: "spec/beeRef/name",
 				},
 			},
 		},

api/internal/accumulator/namereferencetransformer.go

@@ -7,22 +7,26 @@ import (
 	"fmt"
 	"log"
 
+	"sigs.k8s.io/kustomize/api/filters/nameref"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
-	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
-	"sigs.k8s.io/kustomize/api/transform"
 )
 
 type nameReferenceTransformer struct {
 	backRefs []builtinconfig.NameBackReferences
 }
 
+const doDebug = false
+
 var _ resmap.Transformer = &nameReferenceTransformer{}
 
+type filterMap map[*resource.Resource][]nameref.Filter
+
 // newNameReferenceTransformer constructs a nameReferenceTransformer
 // with a given slice of NameBackReferences.
-func newNameReferenceTransformer(br []builtinconfig.NameBackReferences) resmap.Transformer {
+func newNameReferenceTransformer(
+	br []builtinconfig.NameBackReferences) resmap.Transformer {
 	if br == nil {
 		log.Fatal("backrefs not expected to be nil")
 	}
@@ -35,13 +39,61 @@ func newNameReferenceTransformer(br []builtinconfig.NameBackReferences) resmap.T
 //
 // For example, a HorizontalPodAutoscaler (HPA)
 // necessarily refers to a Deployment, the thing that
-// the HPA scales. The Deployment name might change
-// (e.g. prefix added), and the reference in the HPA
-// has to be fixed.
+// an HPA scales. In this case:
 //
-// In the outer loop over the ResMap below, say we
-// encounter a specific HPA. Then, in scanning backrefs,
-// we encounter an entry like
+//   - the HPA instance is the Referrer,
+//   - the Deployment instance is the ReferralTarget.
+//
+// If the Deployment's name changes, e.g. a prefix is added,
+// then the HPA's reference to the Deployment must be fixed.
+//
+func (t *nameReferenceTransformer) Transform(m resmap.ResMap) error {
+	fMap := t.determineFilters(m.Resources())
+	debug(fMap)
+	for r, fList := range fMap {
+		c := m.SubsetThatCouldBeReferencedByResource(r)
+		for _, f := range fList {
+			f.Referrer = r
+			f.ReferralCandidates = c
+			if err := f.Referrer.ApplyFilter(f); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func debug(fMap filterMap) {
+	if !doDebug {
+		return
+	}
+	fmt.Printf("filterMap has %d entries:\n", len(fMap))
+	rCount := 0
+	for r, fList := range fMap {
+		yml, _ := r.AsYAML()
+		rCount++
+		fmt.Printf(`
+---- %3d. possible referrer -------------
+%s
+---------`, rCount, string(yml),
+		)
+		for i, f := range fList {
+			fmt.Printf(`
+%3d/%3d update: %s
+          from: %s
+`, rCount, i+1, f.NameFieldToUpdate.Path, f.ReferralTarget,
+			)
+		}
+	}
+}
+
+// Produce a map from referrer resources that might need to be fixed
+// to filters that might fix them.  The keys to this map are potential
+// referrers, so won't include resources like ConfigMap or Secret.
+//
+// In the inner loop over the resources below, say we
+// encounter an HPA instance. Then, in scanning the set
+// of all known backrefs, we encounter an entry like
 //
 //   - kind: Deployment
 //     fieldSpecs:
@@ -50,220 +102,53 @@ func newNameReferenceTransformer(br []builtinconfig.NameBackReferences) resmap.T
 //
 // This entry says that an HPA, via its
 // 'spec/scaleTargetRef/name' field, may refer to a
-// Deployment.  This match to HPA means we may need to
-// modify the value in its 'spec/scaleTargetRef/name'
-// field, by searching for the thing it refers to,
-// and getting its new name.
+// Deployment.
 //
-// As a filter, and search optimization, we compute a
-// subset of all resources that the HPA could refer to,
-// by excluding objects from other namespaces, and
-// excluding objects that don't have the same prefix-
-// suffix mods as the HPA.
-//
-// We look in this subset for all Deployment objects
-// with a resId that has a Name matching the field value
-// present in the HPA.  If no match do nothing; if more
-// than one match, it's an error.
-//
-// We overwrite the HPA name field with the value found
-// in the Deployment's name field (the name in the raw
-// object - the modified name - not the unmodified name
-// in the Deployment's resId).
-//
-// This process assumes that the name stored in a ResId
-// (the ResMap key) isn't modified by name transformers.
-// Name transformers should only modify the name in the
-// body of the resource object (the value in the ResMap).
-//
-func (o *nameReferenceTransformer) Transform(m resmap.ResMap) error {
-	// TODO: Too much looping, here and in transitive calls.
-	for _, referrer := range m.Resources() {
-		var candidates resmap.ResMap
-		for _, target := range o.backRefs {
-			for _, fSpec := range target.FieldSpecs {
-				if referrer.OrgId().IsSelected(&fSpec.Gvk) {
-					if candidates == nil {
-						candidates = m.SubsetThatCouldBeReferencedByResource(referrer)
-					}
-					err := transform.MutateField(
-						referrer.Map(),
-						fSpec.PathSlice(),
-						fSpec.CreateIfNotPresent,
-						o.getNewNameFunc(
-							// referrer could be an HPA instance,
-							// target could be Gvk for Deployment,
-							// candidate a list of resources "reachable"
-							// from the HPA.
-							referrer, target.Gvk, candidates))
-					if err != nil {
-						return err
+// This means that a filter will need to hunt for the right Deployment,
+// obtain it's new name, and write that name into the HPA's
+// 'spec/scaleTargetRef/name' field. Return a filter that can do that.
+func (t *nameReferenceTransformer) determineFilters(
+	resources []*resource.Resource) (fMap filterMap) {
+	fMap = make(filterMap)
+	for _, backReference := range t.backRefs {
+		for _, referrerSpec := range backReference.Referrers {
+			for _, res := range resources {
+				if res.OrgId().IsSelected(&referrerSpec.Gvk) {
+					// If this is true, the res might be a referrer, and if
+					// so, the name reference it holds might need an update.
+					if resHasField(res, referrerSpec.Path) {
+						// Optimization - the referrer has the field
+						// that might need updating.
+						fMap[res] = append(fMap[res], nameref.Filter{
+							// Name field to write in the Referrer.
+							// If the path specified here isn't found in
+							// the Referrer, nothing happens (no error,
+							// no field creation).
+							NameFieldToUpdate: referrerSpec,
+							// Specification of object class to read from.
+							// Always read from metadata/name field.
+							ReferralTarget: backReference.Gvk,
+						})
 					}
 				}
 			}
 		}
 	}
-	return nil
+	return fMap
 }
 
-// selectReferral picks the referral among a subset of candidates.
-// It returns the current name and namespace of the selected candidate.
-// Note that the content of the referricalCandidateSubset slice is most of the time
-// identical to the referralCandidates resmap. Still in some cases, such
-// as ClusterRoleBinding, the subset only contains the resources of a specific
-// namespace.
-func (o *nameReferenceTransformer) selectReferral(
-	oldName string,
-	referrer *resource.Resource,
-	target resid.Gvk,
-	referralCandidates resmap.ResMap,
-	referralCandidateSubset []*resource.Resource) (interface{}, interface{}, error) {
-
-	for _, res := range referralCandidateSubset {
-		id := res.OrgId()
-		if id.IsSelected(&target) && res.GetOriginalName() == oldName {
-			matches := referralCandidates.GetMatchingResourcesByOriginalId(id.Equals)
-			// If there's more than one match, there's no way
-			// to know which one to pick, so emit error.
-			if len(matches) > 1 {
-				return nil, nil, fmt.Errorf(
-					"multiple matches for %s:\n  %v",
-					id, getIds(matches))
-			}
-			// In the resource, note that it is referenced
-			// by the referrer.
-			res.AppendRefBy(referrer.CurId())
-			// Return transformed name of the object,
-			// complete with prefixes, hashes, etc.
-			return res.GetName(), res.GetNamespace(), nil
-		}
-	}
-
-	return oldName, nil, nil
-}
-
-// utility function to replace a simple string by the new name
-func (o *nameReferenceTransformer) getSimpleNameField(
-	oldName string,
-	referrer *resource.Resource,
-	target resid.Gvk,
-	referralCandidates resmap.ResMap,
-	referralCandidateSubset []*resource.Resource) (interface{}, error) {
-
-	newName, _, err := o.selectReferral(oldName, referrer, target,
-		referralCandidates, referralCandidateSubset)
-
-	return newName, err
-}
-
-// utility function to replace name field within a map[string]interface{}
-// and leverage the namespace field.
-func (o *nameReferenceTransformer) getNameAndNsStruct(
-	inMap map[string]interface{},
-	referrer *resource.Resource,
-	target resid.Gvk,
-	referralCandidates resmap.ResMap) (interface{}, error) {
-
-	// Example:
-	if _, ok := inMap["name"]; !ok {
-		return nil, fmt.Errorf(
-			"%#v is expected to contain a name field", inMap)
-	}
-	oldName, ok := inMap["name"].(string)
-	if !ok {
-		return nil, fmt.Errorf(
-			"%#v is expected to contain a name field of type string", oldName)
-	}
-
-	subset := referralCandidates.Resources()
-	if namespacevalue, ok := inMap["namespace"]; ok {
-		namespace := namespacevalue.(string)
-		bynamespace := referralCandidates.GroupedByOriginalNamespace()
-		if _, ok := bynamespace[namespace]; !ok {
-			return inMap, nil
-		}
-		subset = bynamespace[namespace]
-	}
-
-	newname, newnamespace, err := o.selectReferral(oldName, referrer, target,
-		referralCandidates, subset)
-	if err != nil {
-		return nil, err
-	}
-
-	if (newname == oldName) && (newnamespace == nil) {
-		// no candidate found.
-		return inMap, nil
-	}
-
-	inMap["name"] = newname
-	if newnamespace != "" {
-		// We don't want value "" to replace value "default" since
-		// the empty string is handled as a wild card here not default namespace
-		// by kubernetes.
-		inMap["namespace"] = newnamespace
-	}
-	return inMap, nil
-
-}
-
-func (o *nameReferenceTransformer) getNewNameFunc(
-	referrer *resource.Resource,
-	target resid.Gvk,
-	referralCandidates resmap.ResMap) func(in interface{}) (interface{}, error) {
-	return func(in interface{}) (interface{}, error) {
-		switch thing := in.(type) {
-		case string:
-			return o.getSimpleNameField(thing, referrer, target,
-				referralCandidates, referralCandidates.Resources())
-		case map[string]interface{}:
-			// Kind: ValidatingWebhookConfiguration
-			// FieldSpec is webhooks/clientConfig/service
-			return o.getNameAndNsStruct(thing, referrer, target,
-				referralCandidates)
-		case []interface{}:
-			for idx, item := range thing {
-				switch value := item.(type) {
-				case string:
-					// Kind: Role/ClusterRole
-					// FieldSpec is rules.resourceNames
-					newName, err := o.getSimpleNameField(value, referrer, target,
-						referralCandidates, referralCandidates.Resources())
-					if err != nil {
-						return nil, err
-					}
-					thing[idx] = newName
-				case map[string]interface{}:
-					// Kind: RoleBinding/ClusterRoleBinding
-					// FieldSpec is subjects
-					// Note: The corresponding fieldSpec had been changed from
-					// from path: subjects/name to just path: subjects. This is
-					// what get mutatefield to request the mapping of the whole
-					// map containing namespace and name instead of just a simple
-					// string field containing the name
-					newMap, err := o.getNameAndNsStruct(value, referrer, target,
-						referralCandidates)
-					if err != nil {
-						return nil, err
-					}
-					thing[idx] = newMap
-				default:
-					return nil, fmt.Errorf(
-						"%#v is expected to be either a []string or a []map[string]interface{}", in)
-				}
-			}
-			return in, nil
-		default:
-			return nil, fmt.Errorf(
-				"%#v is expected to be either a string or a []interface{}", in)
-		}
-	}
-}
-
-func getIds(rs []*resource.Resource) []string {
-	var result []string
-	for _, r := range rs {
-		result = append(result, r.CurId().String()+"\n")
-	}
-	return result
+// TODO: check res for field existence here to avoid extra work.
+// res.GetFieldValue, which uses yaml.Lookup under the hood, doesn't know
+// how to parse fieldspec-style paths that make no distinction
+// between maps and sequences.  This means it cannot lookup commonly
+// used "indeterminate" paths like
+//    spec/containers/env/valueFrom/configMapKeyRef/name
+// ('containers' is a list, not a map).
+// However, the fieldspec filter does know how to handle this;
+// extract that code and call it here?
+func resHasField(res *resource.Resource, path string) bool {
+	return true
+	// fld := strings.Join(utils.PathSplitter(path), ".")
+	// _, e := res.GetFieldValue(fld)
+	// return e == nil
 }

api/internal/accumulator/namereferencetransformer_test.go

@@ -8,17 +8,17 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
-	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/api/konfig"
+	"sigs.k8s.io/kustomize/api/provider"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/resource"
 	resmaptest_test "sigs.k8s.io/kustomize/api/testutils/resmaptest"
 )
 
+const notEqualErrFmt = "expected (self) doesn't match actual (other): %v"
+
 func TestNameReferenceHappyRun(t *testing.T) {
-	rf := resource.NewFactory(
-		kunstruct.NewKunstructuredFactoryImpl())
-	m := resmaptest_test.NewRmBuilder(t, rf).AddWithName(
+	m := resmaptest_test.NewRmBuilderDefault(t).AddWithName(
 		"cm1",
 		map[string]interface{}{
 			"apiVersion": "v1",
@@ -220,6 +220,7 @@ func TestNameReferenceHappyRun(t *testing.T) {
 						"secret1",
 						"secret1",
 						"secret2",
+						"cm1",
 					},
 				},
 			},
@@ -261,7 +262,8 @@ func TestNameReferenceHappyRun(t *testing.T) {
 			},
 		}).ResMap()
 
-	expected := resmaptest_test.NewSeededRmBuilder(t, rf, m.ShallowCopy()).ReplaceResource(
+	expected := resmaptest_test.NewSeededRmBuilderDefault(
+		t, m.ShallowCopy()).ReplaceResource(
 		map[string]interface{}{
 			"group":      "apps",
 			"apiVersion": "v1",
@@ -422,6 +424,7 @@ func TestNameReferenceHappyRun(t *testing.T) {
 						"someprefix-secret1-somehash",
 						"someprefix-secret1-somehash",
 						"secret2",
+						"someprefix-cm1-somehash",
 					},
 				},
 			},
@@ -470,19 +473,17 @@ func TestNameReferenceHappyRun(t *testing.T) {
 	}
 
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
 func TestNameReferenceUnhappyRun(t *testing.T) {
-	rf := resource.NewFactory(
-		kunstruct.NewKunstructuredFactoryImpl())
 	tests := []struct {
 		resMap      resmap.ResMap
 		expectedErr string
 	}{
 		{
-			resMap: resmaptest_test.NewRmBuilder(t, rf).Add(
+			resMap: resmaptest_test.NewRmBuilderDefault(t).Add(
 				map[string]interface{}{
 					"apiVersion": "rbac.authorization.k8s.io/v1",
 					"kind":       "ClusterRole",
@@ -502,7 +503,7 @@ func TestNameReferenceUnhappyRun(t *testing.T) {
 				}).ResMap(),
 			expectedErr: "is expected to be"},
 		{
-			resMap: resmaptest_test.NewRmBuilder(t, rf).Add(
+			resMap: resmaptest_test.NewRmBuilderDefault(t).Add(
 				map[string]interface{}{
 					"apiVersion": "rbac.authorization.k8s.io/v1",
 					"kind":       "ClusterRole",
@@ -520,7 +521,27 @@ func TestNameReferenceUnhappyRun(t *testing.T) {
 						},
 					},
 				}).ResMap(),
-			expectedErr: "is expected to contain a name field"},
+			// TODO(#3304): DECISION - kyaml better; not a bug.
+			expectedErr: konfig.IfApiMachineryElseKyaml(
+				`updating name reference in 'rules/resourceNames' field of `+
+					`'rbac.authorization.k8s.io_v1_ClusterRole|~X|cr'`+
+					`: considering field 'rules/resourceNames' of object
+{"apiVersion": "rbac.authorization.k8s.io/v1", "kind": "ClusterRole", "metadata": {
+    "name": "cr"}, "rules": [{"resourceNames": {"foo": "bar"}, "resources": ["secrets"]}]}
+: visit traversal on path: [resourceNames]: path config error; no 'name' field in node`,
+				`updating name reference in 'rules/resourceNames' field of `+
+					`'rbac.authorization.k8s.io_v1_ClusterRole|~X|cr'`+
+					`: considering field 'rules/resourceNames' of object
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: cr
+rules:
+- resourceNames:
+    foo: bar
+  resources:
+  - secrets
+: visit traversal on path: [resourceNames]: path config error; no 'name' field in node`)},
 	}
 
 	nrt := newNameReferenceTransformer(builtinconfig.MakeDefaultConfig().NameReference)
@@ -531,15 +552,14 @@ func TestNameReferenceUnhappyRun(t *testing.T) {
 		}
 
 		if !strings.Contains(err.Error(), test.expectedErr) {
-			t.Fatalf("Incorrect error.\nExpected: %s, but got %v",
+			t.Fatalf("Incorrect error.\nExpected:\n %s\nGot:\n%v",
 				test.expectedErr, err)
 		}
 	}
 }
 
 func TestNameReferencePersistentVolumeHappyRun(t *testing.T) {
-	rf := resource.NewFactory(
-		kunstruct.NewKunstructuredFactoryImpl())
+	rf := provider.NewDefaultDepProvider().GetResourceFactory()
 
 	v1 := rf.FromMapWithName(
 		"volume1",
@@ -590,7 +610,7 @@ func TestNameReferencePersistentVolumeHappyRun(t *testing.T) {
 	v2.AppendRefBy(c2.CurId())
 
 	if err := m1.ErrorIfNotEqualLists(m2); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -664,9 +684,7 @@ const (
 // object with the same original names (uniquename) in different namespaces
 // and with different current Id.
 func TestNameReferenceNamespace(t *testing.T) {
-	rf := resource.NewFactory(
-		kunstruct.NewKunstructuredFactoryImpl())
-	m := resmaptest_test.NewRmBuilder(t, rf).
+	m := resmaptest_test.NewRmBuilderDefault(t).
 		// Add ConfigMap with the same org name in noNs, "ns1" and "ns2" namespaces
 		AddWithName(orgname, map[string]interface{}{
 			"apiVersion": "v1",
@@ -715,7 +733,7 @@ func TestNameReferenceNamespace(t *testing.T) {
 		AddWithNsAndName(ns1, orgname, deploymentMap(ns1, prefixedname, orgname, orgname)).
 		AddWithNsAndName(ns2, orgname, deploymentMap(ns2, suffixedname, orgname, orgname)).ResMap()
 
-	expected := resmaptest_test.NewSeededRmBuilder(t, rf, m.ShallowCopy()).
+	expected := resmaptest_test.NewSeededRmBuilderDefault(t, m.ShallowCopy()).
 		ReplaceResource(deploymentMap(defaultNs, modifiedname, modifiedname, modifiedname)).
 		ReplaceResource(deploymentMap(ns1, prefixedname, prefixedname, prefixedname)).
 		ReplaceResource(deploymentMap(ns2, suffixedname, suffixedname, suffixedname)).ResMap()
@@ -726,8 +744,9 @@ func TestNameReferenceNamespace(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
+	m.RemoveBuildAnnotations()
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -735,9 +754,7 @@ func TestNameReferenceNamespace(t *testing.T) {
 // object with the same original names (uniquename) in different namespaces
 // and with different current Id.
 func TestNameReferenceClusterWide(t *testing.T) {
-	rf := resource.NewFactory(
-		kunstruct.NewKunstructuredFactoryImpl())
-	m := resmaptest_test.NewRmBuilder(t, rf).
+	m := resmaptest_test.NewRmBuilderDefault(t).
 		// Add ServiceAccount with the same org name in noNs, "ns1" and "ns2" namespaces
 		AddWithName(orgname, map[string]interface{}{
 			"apiVersion": "v1",
@@ -789,9 +806,9 @@ func TestNameReferenceClusterWide(t *testing.T) {
 				"name": modifiedname,
 			},
 			"roleRef": map[string]interface{}{
-				"apiVersion": "rbac.authorization.k8s.io/v1",
-				"kind":       "ClusterRole",
-				"name":       orgname,
+				"apiGroup": "rbac.authorization.k8s.io",
+				"kind":     "ClusterRole",
+				"name":     orgname,
 			},
 			"subjects": []interface{}{
 				map[string]interface{}{
@@ -816,7 +833,7 @@ func TestNameReferenceClusterWide(t *testing.T) {
 				},
 			}}).ResMap()
 
-	expected := resmaptest_test.NewSeededRmBuilder(t, rf, m.ShallowCopy()).
+	expected := resmaptest_test.NewSeededRmBuilderDefault(t, m.ShallowCopy()).
 		ReplaceResource(
 			map[string]interface{}{
 				"apiVersion": "rbac.authorization.k8s.io/v1",
@@ -845,9 +862,9 @@ func TestNameReferenceClusterWide(t *testing.T) {
 					"name": modifiedname,
 				},
 				"roleRef": map[string]interface{}{
-					"apiVersion": "rbac.authorization.k8s.io/v1",
-					"kind":       "ClusterRole",
-					"name":       modifiedname,
+					"apiGroup": "rbac.authorization.k8s.io",
+					"kind":     "ClusterRole",
+					"name":     modifiedname,
 				},
 				// The following tests required a change in
 				// getNameFunc implementation in order to leverage
@@ -889,8 +906,9 @@ func TestNameReferenceClusterWide(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
+	m.RemoveBuildAnnotations()
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -898,9 +916,7 @@ func TestNameReferenceClusterWide(t *testing.T) {
 // object with the same original names (uniquename) in different namespaces
 // and with different current Id.
 func TestNameReferenceNamespaceTransformation(t *testing.T) {
-	rf := resource.NewFactory(
-		kunstruct.NewKunstructuredFactoryImpl())
-	m := resmaptest_test.NewRmBuilder(t, rf).
+	m := resmaptest_test.NewRmBuilderDefault(t).
 		AddWithNsAndName(ns4, orgname, map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "Secret",
@@ -937,9 +953,9 @@ func TestNameReferenceNamespaceTransformation(t *testing.T) {
 				"name": modifiedname,
 			},
 			"roleRef": map[string]interface{}{
-				"apiVersion": "rbac.authorization.k8s.io/v1",
-				"kind":       "ClusterRole",
-				"name":       orgname,
+				"apiGroup": "rbac.authorization.k8s.io",
+				"kind":     "ClusterRole",
+				"name":     orgname,
 			},
 			"subjects": []interface{}{
 				map[string]interface{}{
@@ -964,7 +980,7 @@ func TestNameReferenceNamespaceTransformation(t *testing.T) {
 				},
 			}}).ResMap()
 
-	expected := resmaptest_test.NewSeededRmBuilder(t, rf, m.ShallowCopy()).
+	expected := resmaptest_test.NewSeededRmBuilderDefault(t, m.ShallowCopy()).
 		ReplaceResource(
 			map[string]interface{}{
 				"apiVersion": "rbac.authorization.k8s.io/v1",
@@ -973,9 +989,9 @@ func TestNameReferenceNamespaceTransformation(t *testing.T) {
 					"name": modifiedname,
 				},
 				"roleRef": map[string]interface{}{
-					"apiVersion": "rbac.authorization.k8s.io/v1",
-					"kind":       "ClusterRole",
-					"name":       modifiedname,
+					"apiGroup": "rbac.authorization.k8s.io",
+					"kind":     "ClusterRole",
+					"name":     modifiedname,
 				},
 				// The following tests required a change in
 				// getNameFunc implementation in order to leverage
@@ -1017,8 +1033,9 @@ func TestNameReferenceNamespaceTransformation(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
+	m.RemoveBuildAnnotations()
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -1026,9 +1043,7 @@ func TestNameReferenceNamespaceTransformation(t *testing.T) {
 // It validates the change done is IsSameFuzzyNamespace which
 // uses the IsNsEquals method instead of the simple == operator.
 func TestNameReferenceCandidateSelection(t *testing.T) {
-	rf := resource.NewFactory(
-		kunstruct.NewKunstructuredFactoryImpl())
-	m := resmaptest_test.NewRmBuilder(t, rf).
+	m := resmaptest_test.NewRmBuilderDefault(t).
 		AddWithName("cm1", map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -1045,7 +1060,7 @@ func TestNameReferenceCandidateSelection(t *testing.T) {
 		AddWithName("deploy1", deploymentMap("", "p1-deploy1", "cm1", "secret1")).
 		ResMap()
 
-	expected := resmaptest_test.NewSeededRmBuilder(t, rf, m.ShallowCopy()).
+	expected := resmaptest_test.NewSeededRmBuilderDefault(t, m.ShallowCopy()).
 		ReplaceResource(deploymentMap("", "p1-deploy1", "p1-cm1-hash", "p1-secret1-hash")).
 		ResMap()
 
@@ -1055,7 +1070,8 @@ func TestNameReferenceCandidateSelection(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
+	m.RemoveBuildAnnotations()
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }

api/internal/accumulator/refvartransformer.go

@@ -4,12 +4,8 @@
 package accumulator
 
 import (
-	"fmt"
-
-	expansion2 "sigs.k8s.io/kustomize/api/internal/accumulator/expansion"
-
+	"sigs.k8s.io/kustomize/api/filters/refvar"
 	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/transform"
 	"sigs.k8s.io/kustomize/api/types"
 )
 
@@ -17,7 +13,6 @@ type refVarTransformer struct {
 	varMap            map[string]interface{}
 	replacementCounts map[string]int
 	fieldSpecs        []types.FieldSpec
-	mappingFunc       func(string) interface{}
 }
 
 // newRefVarTransformer returns a new refVarTransformer
@@ -31,66 +26,12 @@ func newRefVarTransformer(
 	}
 }
 
-// replaceVars accepts as 'in' a string, or string array, which can have
-// embedded instances of $VAR style variables, e.g. a container command string.
-// The function returns the string with the variables expanded to their final
-// values.
-func (rv *refVarTransformer) replaceVars(in interface{}) (interface{}, error) {
-	switch vt := in.(type) {
-	case []interface{}:
-		var xs []interface{}
-		for _, a := range in.([]interface{}) {
-			x, ok := a.(string)
-			if !ok {
-				return nil, fmt.Errorf("expected array of strings, found %v", in)
-			}
-			xs = append(xs, expansion2.Expand(x, rv.mappingFunc))
-		}
-		return xs, nil
-	case map[string]interface{}:
-		inMap := in.(map[string]interface{})
-		xs := make(map[string]interface{}, len(inMap))
-		for k, v := range inMap {
-			s, ok := v.(string)
-			if !ok {
-				// This field can not contain a $(VAR) since it is not
-				// of string type. For instance .spec.replicas: 3 in
-				// a Deployment object
-				xs[k] = v
-			} else {
-				// This field can potentially contains a $(VAR) since it is
-				// of string type. For instance .spec.replicas: $(REPLICAS)
-				// in a Deployment object
-				xs[k] = expansion2.Expand(s, rv.mappingFunc)
-			}
-		}
-		return xs, nil
-	case interface{}:
-		s, ok := in.(string)
-		if !ok {
-			// This field can not contain a $(VAR) since it is not of string type.
-			return in, nil
-		}
-		// This field can potentially contain a $(VAR) since it is
-		// of string type.
-		return expansion2.Expand(s, rv.mappingFunc), nil
-	// staticcheck erroneously claims that `case nil`
-	// is unreachable here, so suppressing it.
-	//nolint:staticcheck
-	case nil:
-		return nil, nil
-	default:
-		return "", fmt.Errorf("invalid type encountered %T", vt)
-	}
-}
-
 // UnusedVars returns slice of Var names that were unused
 // after a Transform run.
 func (rv *refVarTransformer) UnusedVars() []string {
 	var unused []string
 	for k := range rv.varMap {
-		_, ok := rv.replacementCounts[k]
-		if !ok {
+		if _, ok := rv.replacementCounts[k]; !ok {
 			unused = append(unused, k)
 		}
 	}
@@ -100,16 +41,15 @@ func (rv *refVarTransformer) UnusedVars() []string {
 // Transform replaces $(VAR) style variables with values.
 func (rv *refVarTransformer) Transform(m resmap.ResMap) error {
 	rv.replacementCounts = make(map[string]int)
-	rv.mappingFunc = expansion2.MappingFuncFor(
-		rv.replacementCounts, rv.varMap)
+	mf := refvar.MakePrimitiveReplacer(rv.replacementCounts, rv.varMap)
 	for _, res := range m.Resources() {
 		for _, fieldSpec := range rv.fieldSpecs {
-			if res.OrgId().IsSelected(&fieldSpec.Gvk) {
-				if err := transform.MutateField(
-					res.Map(), fieldSpec.PathSlice(),
-					false, rv.replaceVars); err != nil {
-					return err
-				}
+			err := res.ApplyFilter(refvar.Filter{
+				MappingFunc: mf,
+				FieldSpec:   fieldSpec,
+			})
+			if err != nil {
+				return err
 			}
 		}
 	}

api/internal/accumulator/refvartransformer_test.go

@@ -7,10 +7,9 @@ import (
 	"reflect"
 	"testing"
 
-	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/api/konfig"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/resource"
 	resmaptest_test "sigs.k8s.io/kustomize/api/testutils/resmaptest"
 	"sigs.k8s.io/kustomize/api/types"
 )
@@ -25,14 +24,12 @@ func TestRefVarTransformer(t *testing.T) {
 		res    resmap.ResMap
 		unused []string
 	}
-	testCases := []struct {
-		description string
-		given       given
-		expected    expected
-		errMessage  string
+	testCases := map[string]struct {
+		given      given
+		expected   expected
+		errMessage string
 	}{
-		{
-			description: "var replacement in map[string]",
+		"var replacement in map[string]": {
 			given: given{
 				varMap: map[string]interface{}{
 					"FOO": "replacementForFoo",
@@ -44,11 +41,9 @@ func TestRefVarTransformer(t *testing.T) {
 					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/map"},
 					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/slice"},
 					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/interface"},
-					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/nil"},
 					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/num"},
 				},
-				res: resmaptest_test.NewRmBuilder(
-					t, resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl())).
+				res: resmaptest_test.NewRmBuilderDefault(t).
 					Add(map[string]interface{}{
 						"apiVersion": "v1",
 						"kind":       "ConfigMap",
@@ -63,7 +58,7 @@ func TestRefVarTransformer(t *testing.T) {
 								"item4": "$(BAZ)+$(BAZ)",
 								"item5": "$(BOO)",
 								"item6": "if $(BOO)",
-								"item7": 2019,
+								"item7": int64(2019),
 							},
 							"slice": []interface{}{
 								"$(FOO)",
@@ -74,13 +69,11 @@ func TestRefVarTransformer(t *testing.T) {
 								"if $(BOO)",
 							},
 							"interface": "$(FOO)",
-							"nil":       nil,
-							"num":       2019,
+							"num":       int64(2019),
 						}}).ResMap(),
 			},
 			expected: expected{
-				res: resmaptest_test.NewRmBuilder(
-					t, resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl())).
+				res: resmaptest_test.NewRmBuilderDefault(t).
 					Add(map[string]interface{}{
 						"apiVersion": "v1",
 						"kind":       "ConfigMap",
@@ -95,7 +88,7 @@ func TestRefVarTransformer(t *testing.T) {
 								"item4": "5+5",
 								"item5": true,
 								"item6": "if true",
-								"item7": 2019,
+								"item7": int64(2019),
 							},
 							"slice": []interface{}{
 								"replacementForFoo",
@@ -106,21 +99,18 @@ func TestRefVarTransformer(t *testing.T) {
 								"if true",
 							},
 							"interface": "replacementForFoo",
-							"nil":       nil,
-							"num":       2019,
+							"num":       int64(2019),
 						}}).ResMap(),
 				unused: []string{"BAR"},
 			},
 		},
-		{
-			description: "var replacement panic in map[string]",
+		"var replacement panic in map[string]": {
 			given: given{
 				varMap: map[string]interface{}{},
 				fs: []types.FieldSpec{
 					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/slice"},
 				},
-				res: resmaptest_test.NewRmBuilder(
-					t, resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl())).
+				res: resmaptest_test.NewRmBuilderDefault(t).
 					Add(map[string]interface{}{
 						"apiVersion": "v1",
 						"kind":       "ConfigMap",
@@ -131,24 +121,66 @@ func TestRefVarTransformer(t *testing.T) {
 							"slice": []interface{}{5}, // noticeably *not* a []string
 						}}).ResMap(),
 			},
-			errMessage: "expected array of strings, found [5]",
+			// TODO(#3304): DECISION - kyaml better; not a bug.
+			errMessage: konfig.IfApiMachineryElseKyaml(
+				`considering field 'data/slice' of object
+{"apiVersion": "v1", "data": {"slice": [5]}, "kind": "ConfigMap", "metadata": {"name": "cm1"}}
+: invalid value type expect a string`,
+				`considering field 'data/slice' of object
+apiVersion: v1
+data:
+  slice:
+  - 5
+kind: ConfigMap
+metadata:
+  name: cm1
+: invalid value type expect a string`,
+			),
+		},
+		"var replacement in nil": {
+			given: given{
+				varMap: map[string]interface{}{},
+				fs: []types.FieldSpec{
+					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/nil"},
+				},
+				res: resmaptest_test.NewRmBuilderDefault(t).
+					Add(map[string]interface{}{
+						"apiVersion": "v1",
+						"kind":       "ConfigMap",
+						"metadata": map[string]interface{}{
+							"name": "cm1",
+						},
+						"data": map[string]interface{}{
+							"nil": nil, // noticeably *not* a []string
+						}}).ResMap(),
+			},
+			expected: expected{
+				res: resmaptest_test.NewRmBuilderDefault(t).
+					Add(map[string]interface{}{
+						"apiVersion": "v1",
+						"kind":       "ConfigMap",
+						"metadata": map[string]interface{}{
+							"name": "cm1",
+						},
+						"data": map[string]interface{}{
+							"nil": nil, // noticeably *not* a []string
+						}}).ResMap(),
+			},
 		},
 	}
 
-	for _, tc := range testCases {
-		t.Run(tc.description, func(t *testing.T) {
-			// arrange
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
 			tr := newRefVarTransformer(tc.given.varMap, tc.given.fs)
-
-			// act
 			err := tr.Transform(tc.given.res)
-
-			// assert
 			if tc.errMessage != "" {
 				if err == nil {
 					t.Fatalf("missing expected error %v", tc.errMessage)
 				} else if err.Error() != tc.errMessage {
-					t.Fatalf("actual error doesn't match expected error: \nACTUAL: %v\nEXPECTED: %v", err.Error(), tc.errMessage)
+					t.Fatalf(`actual error doesn't match expected error:
+ACTUAL: %v
+EXPECTED: %v`,
+						err.Error(), tc.errMessage)
 				}
 			} else {
 				if err != nil {
@@ -158,7 +190,13 @@ func TestRefVarTransformer(t *testing.T) {
 				a, e := tc.given.res, tc.expected.res
 				if !reflect.DeepEqual(a, e) {
 					err = e.ErrorIfNotEqualLists(a)
-					t.Fatalf("actual doesn't match expected: \nACTUAL:\n%v\nEXPECTED:\n%v\nERR: %v", a, e, err)
+					t.Fatalf(`actual doesn't match expected:
+ACTUAL:
+%v
+EXPECTED:
+%v
+ERR: %v`,
+						a, e, err)
 				}
 			}
 		})

api/internal/accumulator/resaccumulator.go

@@ -41,13 +41,11 @@ func (ra *ResAccumulator) Vars() []types.Var {
 	return ra.varSet.AsSlice()
 }
 
-func (ra *ResAccumulator) AppendAll(
-	resources resmap.ResMap) error {
+func (ra *ResAccumulator) AppendAll(resources resmap.ResMap) error {
 	return ra.resMap.AppendAll(resources)
 }
 
-func (ra *ResAccumulator) AbsorbAll(
-	resources resmap.ResMap) error {
+func (ra *ResAccumulator) AbsorbAll(resources resmap.ResMap) error {
 	return ra.resMap.AbsorbAll(resources)
 }
 
@@ -61,6 +59,15 @@ func (ra *ResAccumulator) GetTransformerConfig() *builtinconfig.TransformerConfi
 	return ra.tConfig
 }
 
+// MergeVars accumulates vars into ResAccumulator.
+// A Var is a tuple of name, object reference and field reference.
+// This func takes a list of vars from the current kustomization file and
+// annotates the accumulated resources with the names of the vars that match
+// those resources.  E.g. if there's a var named "sam" that wants to get
+// its data from a ConfigMap named "james", and the resource list contains a
+// ConfigMap named "james", then that ConfigMap will be annotated with the
+// var name "sam".  Later this annotation is used to find the data for "sam"
+// by digging into a particular fieldpath of "james".
 func (ra *ResAccumulator) MergeVars(incoming []types.Var) error {
 	for _, v := range incoming {
 		targetId := resid.NewResIdWithNamespace(v.ObjRef.GVK(), v.ObjRef.Name, v.ObjRef.Namespace)
@@ -70,7 +77,7 @@ func (ra *ResAccumulator) MergeVars(incoming []types.Var) error {
 			// wildcard search on the namespace hence we still use GvknEquals
 			idMatcher = targetId.Equals
 		}
-		matched := ra.resMap.GetMatchingResourcesByOriginalId(idMatcher)
+		matched := ra.resMap.GetMatchingResourcesByAnyId(idMatcher)
 		if len(matched) > 1 {
 			return fmt.Errorf(
 				"found %d resId matches for var %s "+
@@ -106,12 +113,10 @@ func (ra *ResAccumulator) findVarValueFromResources(v types.Var) (interface{}, e
 						"field specified in var '%v' "+
 							"not found in corresponding resource", v)
 				}
-
 				return s, nil
 			}
 		}
 	}
-
 	return "", fmt.Errorf(
 		"var '%v' cannot be mapped to a field "+
 			"in the set of known resources", v)
@@ -127,10 +132,8 @@ func (ra *ResAccumulator) makeVarReplacementMap() (map[string]interface{}, error
 		if err != nil {
 			return nil, err
 		}
-
 		result[v.Name] = s
 	}
-
 	return result, nil
 }
 
@@ -161,6 +164,6 @@ func (ra *ResAccumulator) FixBackReferences() (err error) {
 	if ra.tConfig.NameReference == nil {
 		return nil
 	}
-	return ra.Transform(newNameReferenceTransformer(
-		ra.tConfig.NameReference))
+	return ra.Transform(
+		newNameReferenceTransformer(ra.tConfig.NameReference))
 }

api/internal/accumulator/resaccumulator_test.go

@@ -12,7 +12,7 @@ import (
 
 	. "sigs.k8s.io/kustomize/api/internal/accumulator"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
-	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/api/provider"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
@@ -20,16 +20,14 @@ import (
 	"sigs.k8s.io/kustomize/api/types"
 )
 
-func makeResAccumulator(t *testing.T) (*ResAccumulator, *resource.Factory) {
+func makeResAccumulator(t *testing.T) *ResAccumulator {
 	ra := MakeEmptyAccumulator()
 	err := ra.MergeConfig(builtinconfig.MakeDefaultConfig())
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	rf := resource.NewFactory(
-		kunstruct.NewKunstructuredFactoryImpl())
 	err = ra.AppendAll(
-		resmaptest_test.NewRmBuilder(t, rf).
+		resmaptest_test.NewRmBuilderDefault(t).
 			Add(map[string]interface{}{
 				"apiVersion": "apps/v1",
 				"kind":       "Deployment",
@@ -66,11 +64,11 @@ func makeResAccumulator(t *testing.T) (*ResAccumulator, *resource.Factory) {
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	return ra, rf
+	return ra
 }
 
 func TestResolveVarsHappy(t *testing.T) {
-	ra, _ := makeResAccumulator(t)
+	ra := makeResAccumulator(t)
 	err := ra.MergeVars([]types.Var{
 		{
 			Name: "SERVICE_ONE",
@@ -99,7 +97,7 @@ func TestResolveVarsHappy(t *testing.T) {
 }
 
 func TestResolveVarsOneUnused(t *testing.T) {
-	ra, _ := makeResAccumulator(t)
+	ra := makeResAccumulator(t)
 	err := ra.MergeVars([]types.Var{
 		{
 			Name: "SERVICE_ONE",
@@ -140,11 +138,10 @@ func expectLog(t *testing.T, log bytes.Buffer, expect string) {
 }
 
 func TestResolveVarsVarNeedsDisambiguation(t *testing.T) {
-	ra, rf := makeResAccumulator(t)
-
+	ra := makeResAccumulator(t)
 	rm0 := resmap.New()
 	err := rm0.Append(
-		rf.FromMap(
+		provider.NewDefaultDepProvider().GetResourceFactory().FromMap(
 			map[string]interface{}{
 				"apiVersion": "v1",
 				"kind":       "Service",
@@ -213,8 +210,7 @@ func makeVarToNamepaceAndPath(
 }
 
 func TestResolveVarConflicts(t *testing.T) {
-	rf := resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl())
-
+	rf := provider.NewDefaultDepProvider().GetResourceFactory()
 	// create configmaps in foo and bar namespaces with `data.provider` values.
 	fooAws := makeNamespacedConfigMapWithDataProviderValue("foo", "aws")
 	barAws := makeNamespacedConfigMapWithDataProviderValue("bar", "aws")
@@ -261,7 +257,7 @@ func TestResolveVarConflicts(t *testing.T) {
 }
 
 func TestResolveVarsGoodResIdBadField(t *testing.T) {
-	ra, _ := makeResAccumulator(t)
+	ra := makeResAccumulator(t)
 	err := ra.MergeVars([]types.Var{
 		{
 			Name: "SERVICE_ONE",
@@ -286,7 +282,7 @@ func TestResolveVarsGoodResIdBadField(t *testing.T) {
 }
 
 func TestResolveVarsUnmappableVar(t *testing.T) {
-	ra, _ := makeResAccumulator(t)
+	ra := makeResAccumulator(t)
 	err := ra.MergeVars([]types.Var{
 		{
 			Name: "SERVICE_THREE",
@@ -310,7 +306,7 @@ func TestResolveVarsUnmappableVar(t *testing.T) {
 }
 
 func TestResolveVarsWithNoambiguation(t *testing.T) {
-	ra1, rf := makeResAccumulator(t)
+	ra1 := makeResAccumulator(t)
 	err := ra1.MergeVars([]types.Var{
 		{
 			Name: "SERVICE_ONE",
@@ -327,7 +323,7 @@ func TestResolveVarsWithNoambiguation(t *testing.T) {
 	// Create another accumulator having a resource with different prefix
 	ra2 := MakeEmptyAccumulator()
 
-	m := resmaptest_test.NewRmBuilder(t, rf).
+	m := resmaptest_test.NewRmBuilderDefault(t).
 		Add(map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "Deployment",
@@ -348,19 +344,20 @@ func TestResolveVarsWithNoambiguation(t *testing.T) {
 					},
 				},
 			}}).
+		// Make it seem like this resource
+		// went through a prefix transformer.
 		Add(map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "Service",
 			"metadata": map[string]interface{}{
-				"name": "backendOne",
+				"name": "sub-backendOne",
+				"annotations": map[string]interface{}{
+					"config.kubernetes.io/previousNames":      "backendOne",
+					"config.kubernetes.io/previousNamespaces": "default",
+					"config.kubernetes.io/prefixes":           "sub-",
+				},
 			}}).ResMap()
 
-	// Make it seem like this resource
-	// went through a prefix transformer.
-	r := m.GetByIndex(1)
-	r.AddNamePrefix("sub-")
-	r.SetName("sub-backendOne") // original name remains "backendOne"
-
 	err = ra2.AppendAll(m)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)

api/internal/conflict/factory.go

@@ -0,0 +1,23 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package conflict
+
+import (
+	"sigs.k8s.io/kustomize/api/resid"
+	"sigs.k8s.io/kustomize/api/resource"
+)
+
+type cdFactory struct{}
+
+var _ resource.ConflictDetectorFactory = &cdFactory{}
+
+// NewFactory returns a new conflict detector factory.
+func NewFactory() resource.ConflictDetectorFactory {
+	return &cdFactory{}
+}
+
+// New returns an instance of smPatchMergeOnlyDetector.
+func (c cdFactory) New(_ resid.Gvk) (resource.ConflictDetector, error) {
+	return &smPatchMergeOnlyDetector{}, nil
+}

api/internal/conflict/smpatchmergeonlydetector.go

@@ -0,0 +1,33 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package conflict
+
+import (
+	"sigs.k8s.io/kustomize/api/resource"
+)
+
+// smPatchMergeOnlyDetector ignores conflicts,
+// but does real strategic merge patching.
+// This is part of an effort to eliminate dependence on
+// apimachinery package to allow kustomize integration
+// into kubectl (#2506 and #1500)
+type smPatchMergeOnlyDetector struct{}
+
+var _ resource.ConflictDetector = &smPatchMergeOnlyDetector{}
+
+func (c *smPatchMergeOnlyDetector) HasConflict(
+	_, _ *resource.Resource) (bool, error) {
+	return false, nil
+}
+
+// There's at least one case that doesn't work.  Suppose one has a
+// Deployment with a volume with the bizarre "emptyDir: {}" entry.
+// If you want to get rid of this entry via a patch containing
+// the entry "emptyDir: null", then the following won't work,
+// because null entries are eliminated.
+func (c *smPatchMergeOnlyDetector) MergePatches(
+	r, patch *resource.Resource) (*resource.Resource, error) {
+	err := r.ApplySmPatch(patch)
+	return r, err
+}

api/internal/crawl/README.md

@@ -217,7 +217,7 @@ overview of each component with the following sections going into more details.
 
 The overall structure is outlined in the following figure:
 ![overview](
-https://sigs.k8s.io/kustomize/internal/tools/pictures/sys_arch.png)
+https://github.com/kubernetes-sigs/kustomize/blob/master/api/internal/crawl/pictures/token_config.png)
 
 #### Crawler
 The leftmost component consists of a crawler with an http cache of GitHub

api/internal/crawl/doc/doc.go

@@ -7,14 +7,13 @@ import (
 	"sort"
 	"strings"
 
-	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
 	"sigs.k8s.io/kustomize/api/konfig"
+	"sigs.k8s.io/kustomize/api/provider"
+	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/yaml"
 )
 
-var fileReader = kunstruct.NewKunstructuredFactoryImpl()
-
 // This document is meant to be used at the elasticsearch document type.
 // Fields are serialized as-is to elasticsearch, where indices are built
 // to facilitate text search queries. Identifiers, Values, FilePath,
@@ -42,6 +41,7 @@ type KustomizationDocument struct {
 	Kinds       []string `json:"kinds,omitempty"`
 	Identifiers []string `json:"identifiers,omitempty"`
 	Values      []string `json:"values,omitempty"`
+	resFactory  *resource.Factory
 }
 
 type set map[string]struct{}
@@ -52,6 +52,7 @@ func (doc *KustomizationDocument) Copy() *KustomizationDocument {
 		Kinds:       doc.Kinds,
 		Identifiers: doc.Identifiers,
 		Values:      doc.Values,
+		resFactory:  provider.NewDefaultDepProvider().GetResourceFactory(),
 	}
 }
 
@@ -150,7 +151,7 @@ func (doc *KustomizationDocument) readBytes() ([]map[string]interface{}, error)
 	}
 
 	configs := make([]map[string]interface{}, 0)
-	ks, err := fileReader.SliceFromBytes(data)
+	ks, err := doc.resFactory.SliceFromBytes(data)
 	if err != nil {
 		return nil, fmt.Errorf("unable to parse resource: %v", err)
 	}

api/internal/crawl/go.mod

@@ -1,6 +1,6 @@
 module sigs.k8s.io/kustomize/api/internal/crawl
 
-go 1.14
+go 1.15
 
 require (
 	github.com/elastic/go-elasticsearch/v6 v6.8.5

api/internal/crawl/go.sum

@@ -1,38 +1,20 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-github.com/360EntSecGroup-Skylar/excelize v1.4.1/go.mod h1:vnax29X2usfl7HHkBrX5EvSCJcmH3dT9luvxzu8iGAE=
-github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
-github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
-github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
-github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
-github.com/PuerkitoBio/goquery v1.5.0/go.mod h1:qD2PgZ9lccMbQlc7eEOjaeRlFQON7xY8kdmcsrnKqMg=
-github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
+github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
+github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
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 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-k8s.io/api v0.17.0 h1:H9d/lw+VkZKEVIUc8F3wgiQ+FUXTTr21M87jXLU7yqM=
-k8s.io/api v0.17.0/go.mod h1:npsyOePkeP0CPwyGfXDHxvypiYMJxBWAMpQxCaJ4ZxI=
-k8s.io/apimachinery v0.17.0 h1:xRBnuie9rXcPxUkDizUsGvPf1cnlZCFu210op7J7LJo=
-k8s.io/apimachinery v0.17.0/go.mod h1:b9qmWdKlLuU9EBh+06BtLcSf/Mu89rWL33naRxs1uZg=
-k8s.io/client-go v0.17.0 h1:8QOGvUGdqDMFrm9sD6IUFl256BcffynGoe80sxgTEDg=
-k8s.io/client-go v0.17.0/go.mod h1:TYgR6EUHs6k45hb6KWjVD6jFZvJV4gHDikv/It0xz+k=
-k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
-k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
-k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
-k8s.io/klog v1.0.0 h1:Pt+yjF5aB1xDSVbau4VsWe+dQNzA0qv1LlXdC2dF6Q8=
-k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
-k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a h1:UcxjrRMyNx/i/y8G7kPvLyy7rfbeuf1PYyBf973pgyU=
-k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
-k8s.io/utils v0.0.0-20191114184206-e782cd3c129f/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw=
-sigs.k8s.io/kustomize/kyaml v0.3.4/go.mod h1:XJL84E6sOFeNrQ7CADiemc1B0EjIxHo3OhW4o1aJYNw=
-sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
-sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
-sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/kustomize/kyaml v0.10.13 h1:edizZj6kVwFgE2Wy6cpzt+qacKmjgGoTBzNtAz6+Cl4=
+sigs.k8s.io/kustomize/kyaml v0.10.13/go.mod h1:JX33L0fyBEfdkidfYQwF50t7UrjatnF+j0F9ikkhTWI=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

api/internal/crawl/index/elasticsearch.go

@@ -191,7 +191,8 @@ func (idx *index) Put(uniqueID string, doc interface{}) error {
 	}
 
 	if exists {
-		docBytes, err := json.Marshal(doc)
+		var docBytes []byte
+		docBytes, err = json.Marshal(doc)
 		if err != nil {
 			return err
 		}
@@ -204,12 +205,14 @@ func (idx *index) Put(uniqueID string, doc interface{}) error {
 			Body:       bytes.NewReader(body),
 			DocumentID: uniqueID,
 		}
-		res, err := req.Do(idx.ctx, idx.client)
+		var res *esapi.Response
+		res, err = req.Do(idx.ctx, idx.client)
 
 		err = idx.responseErrorOrNil("could not update document",
 			res, err, ignoreResponseBody)
 	} else {
-		body, err := json.Marshal(doc)
+		var body []byte
+		body, err = json.Marshal(doc)
 		if err != nil {
 			return err
 		}
@@ -219,7 +222,8 @@ func (idx *index) Put(uniqueID string, doc interface{}) error {
 			Body:       bytes.NewReader(body),
 			DocumentID: uniqueID,
 		}
-		res, err := req.Do(idx.ctx, idx.client)
+		var res *esapi.Response
+		res, err = req.Do(idx.ctx, idx.client)
 
 		err = idx.responseErrorOrNil("could not insert document",
 			res, err, ignoreResponseBody)

api/internal/generators/configmap.go

@@ -0,0 +1,45 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package generators
+
+import (
+	"sigs.k8s.io/kustomize/api/ifc"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+// MakeConfigMap makes a configmap.
+//
+// ConfigMap: https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.19/#configmap-v1-core
+//
+// ConfigMaps and Secrets are similar.
+//
+// Both objects have a `data` field, which contains a map from keys to
+// values that must be UTF-8 valid strings.  Such data might be simple text,
+// or whoever made the data may have done so by performing a base64 encoding
+// on binary data. Regardless, k8s has no means to know this, so it treats
+// the data field as a string.
+//
+// The ConfigMap has an additional field `binaryData`, also a map, but its
+// values are _intended_ to be interpreted as a base64 encoding of []byte,
+// by whatever makes use of the ConfigMap.
+//
+// In a ConfigMap, any key used in `data` cannot also be used in `binaryData`
+// and vice-versa.  A key must be unique across both maps.
+func MakeConfigMap(
+	ldr ifc.KvLoader, args *types.ConfigMapArgs) (rn *yaml.RNode, err error) {
+	rn, err = makeBaseNode("ConfigMap", args.Name, args.Namespace)
+	if err != nil {
+		return nil, err
+	}
+	m, err := makeValidatedDataMap(ldr, args.Name, args.KvPairSources)
+	if err != nil {
+		return nil, err
+	}
+	if err = rn.LoadMapIntoConfigMapData(m); err != nil {
+		return nil, err
+	}
+	copyLabelsAndAnnotations(rn, args.Options)
+	return rn, nil
+}

api/internal/generators/configmap_test.go

@@ -0,0 +1,223 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package generators_test
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/api/filesys"
+	. "sigs.k8s.io/kustomize/api/internal/generators"
+	"sigs.k8s.io/kustomize/api/kv"
+	"sigs.k8s.io/kustomize/api/loader"
+	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
+	"sigs.k8s.io/kustomize/api/types"
+)
+
+var binaryHello = []byte{
+	0xff, // non-utf8
+	0x68, // h
+	0x65, // e
+	0x6c, // l
+	0x6c, // l
+	0x6f, // o
+}
+
+func manyHellos(count int) (result []byte) {
+	for i := 0; i < count; i++ {
+		result = append(result, binaryHello...)
+	}
+	return
+}
+
+func TestMakeConfigMap(t *testing.T) {
+	type expected struct {
+		out    string
+		errMsg string
+	}
+
+	testCases := map[string]struct {
+		args types.ConfigMapArgs
+		exp  expected
+	}{
+		"construct config map from env": {
+			args: types.ConfigMapArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "envConfigMap",
+					KvPairSources: types.KvPairSources{
+						EnvSources: []string{
+							filepath.Join("configmap", "app.env"),
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: envConfigMap
+data:
+  DB_PASSWORD: qwerty
+  DB_USERNAME: admin
+`,
+			},
+		},
+		"construct config map from text file": {
+			args: types.ConfigMapArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "fileConfigMap1",
+					KvPairSources: types.KvPairSources{
+						FileSources: []string{
+							filepath.Join("configmap", "app-init.ini"),
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: fileConfigMap1
+data:
+  app-init.ini: |
+    FOO=bar
+    BAR=baz
+`,
+			},
+		},
+		"construct config map from text and binary file": {
+			args: types.ConfigMapArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "fileConfigMap2",
+					KvPairSources: types.KvPairSources{
+						FileSources: []string{
+							filepath.Join("configmap", "app-init.ini"),
+							filepath.Join("configmap", "app.bin"),
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: fileConfigMap2
+data:
+  app-init.ini: |
+    FOO=bar
+    BAR=baz
+binaryData:
+  app.bin: |
+    /2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbG
+    xv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hl
+    bGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv/2
+    hlbGxv/2hlbGxv/2hlbGxv/2hlbGxv
+`,
+			},
+		},
+		"construct config map from literal": {
+			args: types.ConfigMapArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "literalConfigMap1",
+					KvPairSources: types.KvPairSources{
+						LiteralSources: []string{"a=x", "b=y", "c=\"Hello World\"", "d='true'"},
+					},
+					Options: &types.GeneratorOptions{
+						Labels: map[string]string{
+							"foo": "bar",
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: literalConfigMap1
+  labels:
+    foo: 'bar'
+data:
+  a: x
+  b: y
+  c: Hello World
+  d: "true"
+`,
+			},
+		},
+		"construct config map from literal with GeneratorOptions in ConfigMapArgs": {
+			args: types.ConfigMapArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "literalConfigMap2",
+					KvPairSources: types.KvPairSources{
+						LiteralSources: []string{"a=x", "b=y", "c=\"Hello World\"", "d='true'"},
+					},
+					Options: &types.GeneratorOptions{
+						Labels: map[string]string{
+							"veggie": "celery",
+							"dog":    "beagle",
+							"cat":    "annoying",
+						},
+						Annotations: map[string]string{
+							"river": "Missouri",
+							"city":  "Iowa City",
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: literalConfigMap2
+  labels:
+    cat: 'annoying'
+    dog: 'beagle'
+    veggie: 'celery'
+  annotations:
+    city: 'Iowa City'
+    river: 'Missouri'
+data:
+  a: x
+  b: y
+  c: Hello World
+  d: "true"
+`,
+			},
+		},
+	}
+	fSys := filesys.MakeFsInMemory()
+	fSys.WriteFile(
+		filesys.RootedPath("configmap", "app.env"),
+		[]byte("DB_USERNAME=admin\nDB_PASSWORD=qwerty\n"))
+	fSys.WriteFile(
+		filesys.RootedPath("configmap", "app-init.ini"),
+		[]byte("FOO=bar\nBAR=baz\n"))
+	fSys.WriteFile(
+		filesys.RootedPath("configmap", "app.bin"),
+		manyHellos(30))
+	kvLdr := kv.NewLoader(
+		loader.NewFileLoaderAtRoot(fSys),
+		valtest_test.MakeFakeValidator())
+
+	for n := range testCases {
+		tc := testCases[n]
+		t.Run(n, func(t *testing.T) {
+			rn, err := MakeConfigMap(kvLdr, &tc.args)
+			if err != nil {
+				if !assert.EqualError(t, err, tc.exp.errMsg) {
+					t.FailNow()
+				}
+				return
+			}
+			if tc.exp.errMsg != "" {
+				t.Fatalf("%s: should return error '%s'", n, tc.exp.errMsg)
+			}
+			output := rn.MustString()
+			if !assert.Equal(t, tc.exp.out, output) {
+				t.FailNow()
+			}
+		})
+	}
+}

api/internal/generators/secret.go

@@ -0,0 +1,58 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package generators
+
+import (
+	"sigs.k8s.io/kustomize/api/ifc"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+// MakeSecret makes a kubernetes Secret.
+//
+// Secret: https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.19/#secret-v1-core
+//
+// ConfigMaps and Secrets are similar.
+//
+// Like a ConfigMap, a Secret has a `data` field, but unlike a ConfigMap it has
+// no `binaryData` field.
+//
+// All of a Secret's data is assumed to be opaque in nature, and assumed to be
+// base64 encoded from its original representation, regardless of whether the
+// original data was UTF-8 text or binary.
+//
+// This encoding provides no secrecy. It's just a neutral, common means to
+// represent opaque text and binary data.  Beneath the base64 encoding
+// is presumably further encoding under control of the Secret's consumer.
+//
+// A Secret has string field `type` which holds an identifier, used by the
+// client, to choose the algorithm to interpret the `data` field.  Kubernetes
+// cannot make use of this data; it's up to a controller or some pod's service
+// to interpret the value, using `type` as a clue as to how to do this.
+func MakeSecret(
+	ldr ifc.KvLoader, args *types.SecretArgs) (rn *yaml.RNode, err error) {
+	rn, err = makeBaseNode("Secret", args.Name, args.Namespace)
+	if err != nil {
+		return nil, err
+	}
+	t := "Opaque"
+	if args.Type != "" {
+		t = args.Type
+	}
+	if _, err := rn.Pipe(
+		yaml.FieldSetter{
+			Name:  "type",
+			Value: yaml.NewStringRNode(t)}); err != nil {
+		return nil, err
+	}
+	m, err := makeValidatedDataMap(ldr, args.Name, args.KvPairSources)
+	if err != nil {
+		return nil, err
+	}
+	if err = rn.LoadMapIntoSecretData(m); err != nil {
+		return nil, err
+	}
+	copyLabelsAndAnnotations(rn, args.Options)
+	return rn, nil
+}

api/internal/generators/secret_test.go

@@ -0,0 +1,231 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package generators_test
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/api/filesys"
+	. "sigs.k8s.io/kustomize/api/internal/generators"
+	"sigs.k8s.io/kustomize/api/kv"
+	"sigs.k8s.io/kustomize/api/loader"
+	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
+	"sigs.k8s.io/kustomize/api/types"
+)
+
+func TestMakeSecret(t *testing.T) {
+	type expected struct {
+		out    string
+		errMsg string
+	}
+
+	testCases := map[string]struct {
+		args types.SecretArgs
+		exp  expected
+	}{
+		"construct secret from env": {
+			args: types.SecretArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "envSecret",
+					KvPairSources: types.KvPairSources{
+						EnvSources: []string{
+							filepath.Join("secret", "app.env"),
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: Secret
+metadata:
+  name: envSecret
+type: Opaque
+data:
+  DB_PASSWORD: cXdlcnR5
+  DB_USERNAME: YWRtaW4=
+`,
+			},
+		},
+		"construct secret from text file": {
+			args: types.SecretArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "fileSecret1",
+					KvPairSources: types.KvPairSources{
+						FileSources: []string{
+							filepath.Join("secret", "app-init.ini"),
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: Secret
+metadata:
+  name: fileSecret1
+type: Opaque
+data:
+  app-init.ini: Rk9PPWJhcgpCQVI9YmF6Cg==
+`,
+			},
+		},
+		"construct secret from text and binary file": {
+			args: types.SecretArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "fileSecret2",
+					KvPairSources: types.KvPairSources{
+						FileSources: []string{
+							filepath.Join("secret", "app-init.ini"),
+							filepath.Join("secret", "app.bin"),
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: Secret
+metadata:
+  name: fileSecret2
+type: Opaque
+data:
+  app-init.ini: Rk9PPWJhcgpCQVI9YmF6Cg==
+  app.bin: //0=
+`,
+			},
+		},
+		"construct secret from literal": {
+			args: types.SecretArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "literalSecret1",
+					KvPairSources: types.KvPairSources{
+						LiteralSources: []string{"a=x", "b=y", "c=\"Hello World\"", "d='true'"},
+					},
+					Options: &types.GeneratorOptions{
+						Labels: map[string]string{
+							"foo": "bar",
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: Secret
+metadata:
+  name: literalSecret1
+  labels:
+    foo: 'bar'
+type: Opaque
+data:
+  a: eA==
+  b: eQ==
+  c: SGVsbG8gV29ybGQ=
+  d: dHJ1ZQ==
+`,
+			},
+		},
+		"construct secret with type": {
+			args: types.SecretArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "literalSecret1",
+					KvPairSources: types.KvPairSources{
+						LiteralSources: []string{"a=x"},
+					},
+					Options: &types.GeneratorOptions{
+						Labels: map[string]string{
+							"foo": "bar",
+						},
+					},
+				},
+				Type: "foobar",
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: Secret
+metadata:
+  name: literalSecret1
+  labels:
+    foo: 'bar'
+type: foobar
+data:
+  a: eA==
+`,
+			},
+		},
+		"construct secret from literal with GeneratorOptions in SecretArgs": {
+			args: types.SecretArgs{
+				GeneratorArgs: types.GeneratorArgs{
+					Name: "literalSecret2",
+					KvPairSources: types.KvPairSources{
+						LiteralSources: []string{"a=x", "b=y", "c=\"Hello World\"", "d='true'"},
+					},
+					Options: &types.GeneratorOptions{
+						Labels: map[string]string{
+							"veggie": "celery",
+							"dog":    "beagle",
+							"cat":    "annoying",
+						},
+						Annotations: map[string]string{
+							"river": "Missouri",
+							"city":  "Iowa City",
+						},
+					},
+				},
+			},
+			exp: expected{
+				out: `apiVersion: v1
+kind: Secret
+metadata:
+  name: literalSecret2
+  labels:
+    cat: 'annoying'
+    dog: 'beagle'
+    veggie: 'celery'
+  annotations:
+    city: 'Iowa City'
+    river: 'Missouri'
+type: Opaque
+data:
+  a: eA==
+  b: eQ==
+  c: SGVsbG8gV29ybGQ=
+  d: dHJ1ZQ==
+`,
+			},
+		},
+	}
+	fSys := filesys.MakeFsInMemory()
+	fSys.WriteFile(
+		filesys.RootedPath("secret", "app.env"),
+		[]byte("DB_USERNAME=admin\nDB_PASSWORD=qwerty\n"))
+	fSys.WriteFile(
+		filesys.RootedPath("secret", "app-init.ini"),
+		[]byte("FOO=bar\nBAR=baz\n"))
+	fSys.WriteFile(
+		filesys.RootedPath("secret", "app.bin"),
+		[]byte{0xff, 0xfd})
+	kvLdr := kv.NewLoader(
+		loader.NewFileLoaderAtRoot(fSys),
+		valtest_test.MakeFakeValidator())
+
+	for n := range testCases {
+		tc := testCases[n]
+		t.Run(n, func(t *testing.T) {
+			rn, err := MakeSecret(kvLdr, &tc.args)
+			if err != nil {
+				if !assert.EqualError(t, err, tc.exp.errMsg) {
+					t.FailNow()
+				}
+				return
+			}
+			if tc.exp.errMsg != "" {
+				t.Fatalf("%s: should return error '%s'", n, tc.exp.errMsg)
+			}
+			output := rn.MustString()
+			if !assert.Equal(t, tc.exp.out, output) {
+				t.FailNow()
+			}
+		})
+	}
+}

api/internal/generators/utils.go

@@ -0,0 +1,78 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package generators
+
+import (
+	"fmt"
+
+	"github.com/go-errors/errors"
+	"sigs.k8s.io/kustomize/api/ifc"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+func makeBaseNode(kind, name, namespace string) (*yaml.RNode, error) {
+	rn, err := yaml.Parse(fmt.Sprintf(`
+apiVersion: v1
+kind: %s
+`, kind))
+	if err != nil {
+		return nil, err
+	}
+	if name == "" {
+		return nil, errors.Errorf("a configmap must have a name")
+	}
+	if _, err := rn.Pipe(yaml.SetK8sName(name)); err != nil {
+		return nil, err
+	}
+	if namespace != "" {
+		if _, err := rn.Pipe(yaml.SetK8sNamespace(namespace)); err != nil {
+			return nil, err
+		}
+	}
+	return rn, nil
+}
+
+func makeValidatedDataMap(
+	ldr ifc.KvLoader, name string, sources types.KvPairSources) (map[string]string, error) {
+	pairs, err := ldr.Load(sources)
+	if err != nil {
+		return nil, errors.WrapPrefix(err, "loading KV pairs", 0)
+	}
+	knownKeys := make(map[string]string)
+	for _, p := range pairs {
+		// legal key: alphanumeric characters, '-', '_' or '.'
+		if err := ldr.Validator().ErrIfInvalidKey(p.Key); err != nil {
+			return nil, err
+		}
+		if _, ok := knownKeys[p.Key]; ok {
+			return nil, errors.Errorf(
+				"configmap %s illegally repeats the key `%s`", name, p.Key)
+		}
+		knownKeys[p.Key] = p.Value
+	}
+	return knownKeys, nil
+}
+
+// copyLabelsAndAnnotations copies labels and annotations from
+// GeneratorOptions into the given object.
+func copyLabelsAndAnnotations(
+	rn *yaml.RNode, opts *types.GeneratorOptions) error {
+	if opts == nil {
+		return nil
+	}
+	for _, k := range yaml.SortedMapKeys(opts.Labels) {
+		v := opts.Labels[k]
+		if _, err := rn.Pipe(yaml.SetLabel(k, v)); err != nil {
+			return err
+		}
+	}
+	for _, k := range yaml.SortedMapKeys(opts.Annotations) {
+		v := opts.Annotations[k]
+		if _, err := rn.Pipe(yaml.SetAnnotation(k, v)); err != nil {
+			return err
+		}
+	}
+	return nil
+}

api/internal/git/cloner.go

@@ -4,10 +4,6 @@
 package git
 
 import (
-	"log"
-	"os/exec"
-
-	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/filesys"
 )
 
@@ -18,71 +14,29 @@ type Cloner func(repoSpec *RepoSpec) error
 // to say, some remote API, to obtain a local clone of
 // a remote repo.
 func ClonerUsingGitExec(repoSpec *RepoSpec) error {
-	gitProgram, err := exec.LookPath("git")
-	if err != nil {
-		return errors.Wrap(err, "no 'git' program on path")
-	}
-	repoSpec.Dir, err = filesys.NewTmpConfirmedDir()
+	r, err := newCmdRunner()
 	if err != nil {
 		return err
 	}
-
-	if repoSpec.Ref == "" {
-		repoSpec.Ref = "master"
+	repoSpec.Dir = r.dir
+	if err = r.run("init"); err != nil {
+		return err
 	}
-	cmd := exec.Command(
-		gitProgram,
-		"clone",
-		"--depth=1",
-		repoSpec.CloneSpec(),
-		repoSpec.Dir.String())
-	out, err := cmd.CombinedOutput()
-	if err != nil {
-		log.Printf("Error cloning git repo: %s", out)
-		return errors.Wrapf(
-			err,
-			"trouble cloning git repo %v in %s",
-			repoSpec.CloneSpec(), repoSpec.Dir.String())
+	if err = r.run(
+		"remote", "add", "origin", repoSpec.CloneSpec()); err != nil {
+		return err
 	}
-
-	cmd = exec.Command(
-		gitProgram,
-		"fetch",
-		"--depth=1",
-		"origin",
-		repoSpec.Ref)
-	cmd.Dir = repoSpec.Dir.String()
-	out, err = cmd.CombinedOutput()
-	if err != nil {
-		log.Printf("Error fetching ref: %s", out)
-		return errors.Wrapf(err, "trouble fetching %s", repoSpec.Ref)
+	ref := "HEAD"
+	if repoSpec.Ref != "" {
+		ref = repoSpec.Ref
 	}
-
-	cmd = exec.Command(
-		gitProgram,
-		"checkout",
-		"FETCH_HEAD")
-	cmd.Dir = repoSpec.Dir.String()
-	out, err = cmd.CombinedOutput()
-	if err != nil {
-		log.Printf("Error checking out ref: %s", out)
-		return errors.Wrapf(err, "trouble checking out %s", repoSpec.Ref)
+	if err = r.run("fetch", "--depth=1", "origin", ref); err != nil {
+		return err
 	}
-
-	cmd = exec.Command(
-		gitProgram,
-		"submodule",
-		"update",
-		"--init",
-		"--recursive")
-	cmd.Dir = repoSpec.Dir.String()
-	out, err = cmd.CombinedOutput()
-	if err != nil {
-		log.Printf("Error fetching submodules: %s", out)
-		return errors.Wrapf(err, "trouble fetching submodules for %s", repoSpec.CloneSpec())
+	if err = r.run("checkout", "FETCH_HEAD"); err != nil {
+		return err
 	}
-
-	return nil
+	return r.run("submodule", "update", "--init", "--recursive")
 }
 
 // DoNothingCloner returns a cloner that only sets

api/internal/git/gitrunner.go

@@ -0,0 +1,58 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package git
+
+import (
+	"os/exec"
+	"time"
+
+	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/api/filesys"
+	"sigs.k8s.io/kustomize/api/internal/utils"
+)
+
+// Arbitrary, but non-infinite, timeout for running commands.
+const defaultDuration = 27 * time.Second
+
+// gitRunner runs the external git binary.
+type gitRunner struct {
+	gitProgram string
+	duration   time.Duration
+	dir        filesys.ConfirmedDir
+}
+
+// newCmdRunner returns a gitRunner if it can find the binary.
+// It also creats a temp directory for cloning repos.
+func newCmdRunner() (*gitRunner, error) {
+	gitProgram, err := exec.LookPath("git")
+	if err != nil {
+		return nil, errors.Wrap(err, "no 'git' program on path")
+	}
+	dir, err := filesys.NewTmpConfirmedDir()
+	if err != nil {
+		return nil, err
+	}
+	return &gitRunner{
+		gitProgram: gitProgram,
+		duration:   defaultDuration,
+		dir:        dir,
+	}, nil
+}
+
+// run a command with a timeout.
+func (r gitRunner) run(args ...string) error {
+	//nolint: gosec
+	cmd := exec.Command(r.gitProgram, args...)
+	cmd.Dir = r.dir.String()
+	return utils.TimedCall(
+		cmd.String(),
+		r.duration,
+		func() error {
+			_, err := cmd.CombinedOutput()
+			if err != nil {
+				return errors.Wrapf(err, "git cmd = '%s'", cmd.String())
+			}
+			return err
+		})
+}

api/internal/k8sdeps/configmapandsecret/configmapfactory.go

@@ -1,68 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package configmapandsecret generates configmaps and secrets per generator rules.
-package configmapandsecret
-
-import (
-	"fmt"
-	"unicode/utf8"
-
-	"github.com/pkg/errors"
-	corev1 "k8s.io/api/core/v1"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func makeFreshConfigMap(
-	args *types.ConfigMapArgs) *corev1.ConfigMap {
-	cm := &corev1.ConfigMap{}
-	cm.APIVersion = "v1"
-	cm.Kind = "ConfigMap"
-	cm.Name = args.Name
-	cm.Namespace = args.Namespace
-	cm.Data = map[string]string{}
-	return cm
-}
-
-// MakeConfigMap returns a new ConfigMap, or nil and an error.
-func (f *Factory) MakeConfigMap(args *types.ConfigMapArgs) (*corev1.ConfigMap, error) {
-	all, err := f.kvLdr.Load(args.KvPairSources)
-	if err != nil {
-		return nil, errors.Wrap(err, "loading KV pairs")
-	}
-	cm := makeFreshConfigMap(args)
-	for _, p := range all {
-		err = f.addKvToConfigMap(cm, p)
-		if err != nil {
-			return nil, errors.Wrap(err, "trouble mapping")
-		}
-	}
-	f.copyLabelsAndAnnotations(cm, args.Options)
-	return cm, nil
-}
-
-// addKvToConfigMap adds the given key and data to the given config map.
-// Error if key invalid, or already exists.
-func (f *Factory) addKvToConfigMap(configMap *corev1.ConfigMap, p types.Pair) error {
-	if err := f.kvLdr.Validator().ErrIfInvalidKey(p.Key); err != nil {
-		return err
-	}
-	// If the configmap data contains byte sequences that are all in the UTF-8
-	// range, we will write it to .Data
-	if utf8.Valid([]byte(p.Value)) {
-		if _, entryExists := configMap.Data[p.Key]; entryExists {
-			return fmt.Errorf(keyExistsErrorMsg, p.Key, configMap.Data)
-		}
-		configMap.Data[p.Key] = p.Value
-		return nil
-	}
-	// otherwise, it's BinaryData
-	if configMap.BinaryData == nil {
-		configMap.BinaryData = map[string][]byte{}
-	}
-	if _, entryExists := configMap.BinaryData[p.Key]; entryExists {
-		return fmt.Errorf(keyExistsErrorMsg, p.Key, configMap.BinaryData)
-	}
-	configMap.BinaryData[p.Key] = []byte(p.Value)
-	return nil
-}

api/internal/k8sdeps/configmapandsecret/configmapfactory_test.go

@@ -1,189 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configmapandsecret
-
-import (
-	"path/filepath"
-	"reflect"
-	"testing"
-
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/api/filesys"
-	"sigs.k8s.io/kustomize/api/kv"
-	"sigs.k8s.io/kustomize/api/loader"
-	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func makeEnvConfigMap(name string) *corev1.ConfigMap {
-	return &corev1.ConfigMap{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "ConfigMap",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string]string{
-			"DB_USERNAME": "admin",
-			"DB_PASSWORD": "somepw",
-		},
-	}
-}
-
-func makeFileConfigMap(name string) *corev1.ConfigMap {
-	return &corev1.ConfigMap{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "ConfigMap",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string]string{
-			"app-init.ini": `FOO=bar
-BAR=baz
-`,
-		},
-		BinaryData: map[string][]byte{
-			"app.bin": {0xff, 0xfd},
-		},
-	}
-}
-
-func makeLiteralConfigMap(name string, labels, annotations map[string]string) *corev1.ConfigMap {
-	cm := &corev1.ConfigMap{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "ConfigMap",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string]string{
-			"a": "x",
-			"b": "y",
-			"c": "Hello World",
-			"d": "true",
-		},
-	}
-	if labels != nil {
-		cm.SetLabels(labels)
-	}
-	if annotations != nil {
-		cm.SetAnnotations(annotations)
-	}
-	return cm
-}
-
-func TestConstructConfigMap(t *testing.T) {
-	type testCase struct {
-		description string
-		input       types.ConfigMapArgs
-		expected    *corev1.ConfigMap
-	}
-
-	testCases := []testCase{
-		{
-			description: "construct config map from env",
-			input: types.ConfigMapArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "envConfigMap",
-					KvPairSources: types.KvPairSources{
-						EnvSources: []string{
-							filepath.Join("configmap", "app.env"),
-						},
-					},
-				},
-			},
-			expected: makeEnvConfigMap("envConfigMap"),
-		},
-		{
-			description: "construct config map from file",
-			input: types.ConfigMapArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "fileConfigMap",
-					KvPairSources: types.KvPairSources{
-						FileSources: []string{
-							filepath.Join("configmap", "app-init.ini"),
-							filepath.Join("configmap", "app.bin"),
-						},
-					},
-				},
-			},
-			expected: makeFileConfigMap("fileConfigMap"),
-		},
-		{
-			description: "construct config map from literal",
-			input: types.ConfigMapArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "literalConfigMap",
-					KvPairSources: types.KvPairSources{
-						LiteralSources: []string{"a=x", "b=y", "c=\"Hello World\"", "d='true'"},
-					},
-					Options: &types.GeneratorOptions{
-						Labels: map[string]string{
-							"foo": "bar",
-						},
-					},
-				},
-			},
-			expected: makeLiteralConfigMap("literalConfigMap", map[string]string{
-				"foo": "bar",
-			}, nil),
-		},
-		{
-			description: "construct config map from literal with GeneratorOptions in ConfigMapArgs",
-			input: types.ConfigMapArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "literalConfigMap",
-					KvPairSources: types.KvPairSources{
-						LiteralSources: []string{"a=x", "b=y", "c=\"Hello World\"", "d='true'"},
-					},
-					Options: &types.GeneratorOptions{
-						Labels: map[string]string{
-							"foo": "changed",
-							"cat": "dog",
-						},
-						Annotations: map[string]string{
-							"foo": "changed",
-							"cat": "dog",
-						},
-					},
-				},
-			},
-			expected: makeLiteralConfigMap("literalConfigMap", map[string]string{
-				"foo": "changed",
-				"cat": "dog",
-			}, map[string]string{
-				"foo": "changed",
-				"cat": "dog",
-			}),
-		},
-	}
-
-	fSys := filesys.MakeFsInMemory()
-	fSys.WriteFile(
-		filesys.RootedPath("configmap", "app.env"),
-		[]byte("DB_USERNAME=admin\nDB_PASSWORD=somepw\n"))
-	fSys.WriteFile(
-		filesys.RootedPath("configmap", "app-init.ini"),
-		[]byte("FOO=bar\nBAR=baz\n"))
-	fSys.WriteFile(
-		filesys.RootedPath("configmap", "app.bin"),
-		[]byte{0xff, 0xfd})
-	kvLdr := kv.NewLoader(
-		loader.NewFileLoaderAtRoot(fSys),
-		valtest_test.MakeFakeValidator())
-	for _, tc := range testCases {
-		cm, err := NewFactory(kvLdr).MakeConfigMap(&tc.input)
-		if err != nil {
-			t.Fatalf("unexpected error: %v", err)
-		}
-		if !reflect.DeepEqual(*cm, *tc.expected) {
-			t.Fatalf("in testcase: %q updated:\n%#v\ndoesn't match expected:\n%#v\n", tc.description, *cm, tc.expected)
-		}
-	}
-}

api/internal/k8sdeps/configmapandsecret/factory.go

@@ -1,37 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configmapandsecret
-
-import (
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-// Factory makes ConfigMaps and Secrets.
-type Factory struct {
-	kvLdr ifc.KvLoader
-}
-
-// NewFactory returns a new factory that makes ConfigMaps and Secrets.
-func NewFactory(kvLdr ifc.KvLoader) *Factory {
-	return &Factory{kvLdr: kvLdr}
-}
-
-// copyLabelsAndAnnotations copies labels and annotations from
-// GeneratorOptions into the given object.
-func (f *Factory) copyLabelsAndAnnotations(
-	obj metav1.Object, opts *types.GeneratorOptions) {
-	if opts == nil {
-		return
-	}
-	if opts.Labels != nil {
-		obj.SetLabels(types.CopyMap(opts.Labels))
-	}
-	if opts.Annotations != nil {
-		obj.SetAnnotations(types.CopyMap(opts.Annotations))
-	}
-}
-
-const keyExistsErrorMsg = "cannot add key %s, another key by that name already exists: %v"

api/internal/k8sdeps/configmapandsecret/secretfactory.go

@@ -1,54 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configmapandsecret
-
-import (
-	"fmt"
-
-	corev1 "k8s.io/api/core/v1"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func makeFreshSecret(
-	args *types.SecretArgs) *corev1.Secret {
-	s := &corev1.Secret{}
-	s.APIVersion = "v1"
-	s.Kind = "Secret"
-	s.Name = args.Name
-	s.Namespace = args.Namespace
-	s.Type = corev1.SecretType(args.Type)
-	if s.Type == "" {
-		s.Type = corev1.SecretTypeOpaque
-	}
-	s.Data = map[string][]byte{}
-	return s
-}
-
-// MakeSecret returns a new secret.
-func (f *Factory) MakeSecret(args *types.SecretArgs) (*corev1.Secret, error) {
-	all, err := f.kvLdr.Load(args.KvPairSources)
-	if err != nil {
-		return nil, err
-	}
-	s := makeFreshSecret(args)
-	for _, p := range all {
-		err = f.addKvToSecret(s, p.Key, p.Value)
-		if err != nil {
-			return nil, err
-		}
-	}
-	f.copyLabelsAndAnnotations(s, args.Options)
-	return s, nil
-}
-
-func (f *Factory) addKvToSecret(secret *corev1.Secret, keyName, data string) error {
-	if err := f.kvLdr.Validator().ErrIfInvalidKey(keyName); err != nil {
-		return err
-	}
-	if _, entryExists := secret.Data[keyName]; entryExists {
-		return fmt.Errorf(keyExistsErrorMsg, keyName, secret.Data)
-	}
-	secret.Data[keyName] = []byte(data)
-	return nil
-}

api/internal/k8sdeps/configmapandsecret/secretfactory_test.go

@@ -1,154 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configmapandsecret
-
-import (
-	"reflect"
-	"testing"
-
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/api/filesys"
-	"sigs.k8s.io/kustomize/api/kv"
-	"sigs.k8s.io/kustomize/api/loader"
-	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func makeEnvSecret(name string) *corev1.Secret {
-	return &corev1.Secret{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "Secret",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string][]byte{
-			"DB_PASSWORD": []byte("somepw"),
-			"DB_USERNAME": []byte("admin"),
-		},
-		Type: "Opaque",
-	}
-}
-
-func makeFileSecret(name string) *corev1.Secret {
-	return &corev1.Secret{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "Secret",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string][]byte{
-			"app-init.ini": []byte(`FOO=bar
-BAR=baz
-`),
-		},
-		Type: "Opaque",
-	}
-}
-
-func makeLiteralSecret(name string, labels, annotations map[string]string) *corev1.Secret {
-	s := &corev1.Secret{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "Secret",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string][]byte{
-			"a": []byte("x"),
-			"b": []byte("y"),
-		},
-		Type: "Opaque",
-	}
-	if labels != nil {
-		s.SetLabels(labels)
-	}
-	if annotations != nil {
-		s.SetAnnotations(annotations)
-	}
-	return s
-}
-
-func TestConstructSecret(t *testing.T) {
-	type testCase struct {
-		description string
-		input       types.SecretArgs
-		expected    *corev1.Secret
-	}
-
-	testCases := []testCase{
-		{
-			description: "construct secret from env",
-			input: types.SecretArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "envSecret",
-					KvPairSources: types.KvPairSources{
-						EnvSources: []string{"secret/app.env"},
-					},
-				},
-			},
-			expected: makeEnvSecret("envSecret"),
-		},
-		{
-			description: "construct secret from file",
-			input: types.SecretArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "fileSecret",
-					KvPairSources: types.KvPairSources{
-						FileSources: []string{"secret/app-init.ini"},
-					},
-				},
-			},
-			expected: makeFileSecret("fileSecret"),
-		},
-		{
-			description: "construct secret from literal",
-			input: types.SecretArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "literalSecret",
-					KvPairSources: types.KvPairSources{
-						LiteralSources: []string{"a=x", "b=y"},
-					},
-					Options: &types.GeneratorOptions{
-						Labels: map[string]string{
-							"foo": "bar",
-						},
-						Annotations: map[string]string{
-							"fruit": "banana",
-							"pet":   "dog",
-						},
-					},
-				},
-			},
-			expected: makeLiteralSecret("literalSecret", map[string]string{
-				"foo": "bar",
-			}, map[string]string{
-				"fruit": "banana",
-				"pet":   "dog",
-			}),
-		},
-	}
-
-	fSys := filesys.MakeFsInMemory()
-	fSys.WriteFile("/secret/app.env", []byte("DB_USERNAME=admin\nDB_PASSWORD=somepw\n"))
-	fSys.WriteFile("/secret/app-init.ini", []byte("FOO=bar\nBAR=baz\n"))
-	kvLdr := kv.NewLoader(
-		loader.NewFileLoaderAtRoot(fSys),
-		valtest_test.MakeFakeValidator())
-	for _, tc := range testCases {
-		f := NewFactory(kvLdr)
-		cm, err := f.MakeSecret(&tc.input)
-		if err != nil {
-			t.Fatalf("unexpected error: %v", err)
-		}
-		if !reflect.DeepEqual(*cm, *tc.expected) {
-			t.Fatalf("in testcase: %q updated:\n%#v\ndoesn't match expected:\n%#v\n", tc.description, *cm, tc.expected)
-		}
-	}
-}

api/internal/k8sdeps/transformer/factory.go

@@ -1,25 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package transformer provides transformer factory
-package transformer
-
-import (
-	"sigs.k8s.io/kustomize/api/internal/k8sdeps/transformer/patch"
-	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-// FactoryImpl makes patch transformer and name hash transformer
-type FactoryImpl struct{}
-
-// NewFactoryImpl makes a new factoryImpl instance
-func NewFactoryImpl() *FactoryImpl {
-	return &FactoryImpl{}
-}
-
-func (p *FactoryImpl) MergePatches(patches []*resource.Resource,
-	rf *resource.Factory) (
-	resmap.ResMap, error) {
-	return patch.MergePatches(patches, rf)
-}

api/internal/k8sdeps/transformer/patch/conflictdetector.go

@@ -1,221 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package patch
-
-import (
-	"encoding/json"
-	"fmt"
-
-	jsonpatch "github.com/evanphx/json-patch"
-	"k8s.io/apimachinery/pkg/runtime"
-	"k8s.io/apimachinery/pkg/runtime/schema"
-	"k8s.io/apimachinery/pkg/util/mergepatch"
-	"k8s.io/apimachinery/pkg/util/strategicpatch"
-	"k8s.io/client-go/kubernetes/scheme"
-	"sigs.k8s.io/kustomize/api/resid"
-	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-type conflictDetector interface {
-	hasConflict(patch1, patch2 *resource.Resource) (bool, error)
-	findConflict(conflictingPatchIdx int, patches []*resource.Resource) (*resource.Resource, error)
-	mergePatches(patch1, patch2 *resource.Resource) (*resource.Resource, error)
-}
-
-type jsonMergePatch struct {
-	rf *resource.Factory
-}
-
-var _ conflictDetector = &jsonMergePatch{}
-
-func newJMPConflictDetector(rf *resource.Factory) conflictDetector {
-	return &jsonMergePatch{rf: rf}
-}
-
-func (jmp *jsonMergePatch) hasConflict(
-	patch1, patch2 *resource.Resource) (bool, error) {
-	return mergepatch.HasConflicts(patch1.Map(), patch2.Map())
-}
-
-func (jmp *jsonMergePatch) findConflict(
-	conflictingPatchIdx int, patches []*resource.Resource) (*resource.Resource, error) {
-	for i, patch := range patches {
-		if i == conflictingPatchIdx {
-			continue
-		}
-		if !patches[conflictingPatchIdx].OrgId().Equals(patch.OrgId()) {
-			continue
-		}
-		conflict, err := mergepatch.HasConflicts(
-			patch.Map(),
-			patches[conflictingPatchIdx].Map())
-		if err != nil {
-			return nil, err
-		}
-		if conflict {
-			return patch, nil
-		}
-	}
-	return nil, nil
-}
-
-func (jmp *jsonMergePatch) mergePatches(
-	patch1, patch2 *resource.Resource) (*resource.Resource, error) {
-	baseBytes, err := json.Marshal(patch1.Map())
-	if err != nil {
-		return nil, err
-	}
-	patchBytes, err := json.Marshal(patch2.Map())
-	if err != nil {
-		return nil, err
-	}
-	mergedBytes, err := jsonpatch.MergeMergePatches(baseBytes, patchBytes)
-	if err != nil {
-		return nil, err
-	}
-	mergedMap := make(map[string]interface{})
-	err = json.Unmarshal(mergedBytes, &mergedMap)
-	return jmp.rf.FromMap(mergedMap), err
-}
-
-type strategicMergePatch struct {
-	lookupPatchMeta strategicpatch.LookupPatchMeta
-	rf              *resource.Factory
-}
-
-var _ conflictDetector = &strategicMergePatch{}
-
-func newSMPConflictDetector(
-	versionedObj runtime.Object,
-	rf *resource.Factory) (conflictDetector, error) {
-	lookupPatchMeta, err := strategicpatch.NewPatchMetaFromStruct(versionedObj)
-	return &strategicMergePatch{lookupPatchMeta: lookupPatchMeta, rf: rf}, err
-}
-
-func (smp *strategicMergePatch) hasConflict(p1, p2 *resource.Resource) (bool, error) {
-	return strategicpatch.MergingMapsHaveConflicts(
-		p1.Map(), p2.Map(), smp.lookupPatchMeta)
-}
-
-func (smp *strategicMergePatch) findConflict(
-	conflictingPatchIdx int, patches []*resource.Resource) (*resource.Resource, error) {
-	for i, patch := range patches {
-		if i == conflictingPatchIdx {
-			continue
-		}
-		if !patches[conflictingPatchIdx].OrgId().Equals(patch.OrgId()) {
-			continue
-		}
-		conflict, err := strategicpatch.MergingMapsHaveConflicts(
-			patch.Map(),
-			patches[conflictingPatchIdx].Map(),
-			smp.lookupPatchMeta)
-		if err != nil {
-			return nil, err
-		}
-		if conflict {
-			return patch, nil
-		}
-	}
-	return nil, nil
-}
-
-func (smp *strategicMergePatch) mergePatches(patch1, patch2 *resource.Resource) (*resource.Resource, error) {
-	if hasDeleteDirectiveMarker(patch2.Map()) {
-		if hasDeleteDirectiveMarker(patch1.Map()) {
-			return nil, fmt.Errorf("cannot merge patches both containing '$patch: delete' directives")
-		}
-		patch1, patch2 = patch2, patch1
-	}
-	mergeJSONMap, err := strategicpatch.MergeStrategicMergeMapPatchUsingLookupPatchMeta(
-		smp.lookupPatchMeta, patch1.Map(), patch2.Map())
-	return smp.rf.FromMap(mergeJSONMap), err
-}
-
-// MergePatches merge and index patches by OrgId.
-// It errors out if there is conflict between patches.
-func MergePatches(patches []*resource.Resource,
-	rf *resource.Factory) (resmap.ResMap, error) {
-	rc := resmap.New()
-	for ix, patch := range patches {
-		id := patch.OrgId()
-		existing := rc.GetMatchingResourcesByOriginalId(id.Equals)
-		if len(existing) == 0 {
-			rc.Append(patch)
-			continue
-		}
-		if len(existing) > 1 {
-			return nil, fmt.Errorf("self conflict in patches")
-		}
-
-		versionedObj, err := scheme.Scheme.New(toSchemaGvk(id.Gvk))
-		if err != nil && !runtime.IsNotRegisteredError(err) {
-			return nil, err
-		}
-		var cd conflictDetector
-		if err != nil {
-			cd = newJMPConflictDetector(rf)
-		} else {
-			cd, err = newSMPConflictDetector(versionedObj, rf)
-			if err != nil {
-				return nil, err
-			}
-		}
-
-		conflict, err := cd.hasConflict(existing[0], patch)
-		if err != nil {
-			return nil, err
-		}
-		if conflict {
-			conflictingPatch, err := cd.findConflict(ix, patches)
-			if err != nil {
-				return nil, err
-			}
-			return nil, fmt.Errorf(
-				"conflict between %#v and %#v",
-				conflictingPatch.Map(), patch.Map())
-		}
-		merged, err := cd.mergePatches(existing[0], patch)
-		if err != nil {
-			return nil, err
-		}
-		rc.Replace(merged)
-	}
-	return rc, nil
-}
-
-// toSchemaGvk converts to a schema.GroupVersionKind.
-func toSchemaGvk(x resid.Gvk) schema.GroupVersionKind {
-	return schema.GroupVersionKind{
-		Group:   x.Group,
-		Version: x.Version,
-		Kind:    x.Kind,
-	}
-}
-
-func hasDeleteDirectiveMarker(patch map[string]interface{}) bool {
-	if v, ok := patch["$patch"]; ok && v == "delete" {
-		return true
-	}
-	for _, v := range patch {
-		switch typedV := v.(type) {
-		case map[string]interface{}:
-			if hasDeleteDirectiveMarker(typedV) {
-				return true
-			}
-		case []interface{}:
-			for _, sv := range typedV {
-				typedE, ok := sv.(map[string]interface{})
-				if !ok {
-					break
-				}
-				if hasDeleteDirectiveMarker(typedE) {
-					return true
-				}
-			}
-		}
-	}
-	return false
-}

api/internal/plugins/builtinconfig/namebackreferences.go

@@ -10,8 +10,8 @@ import (
 	"sigs.k8s.io/kustomize/api/types"
 )
 
-// NameBackReferences is an association between a gvk.GVK and a list
-// of FieldSpec instances that could refer to it.
+// NameBackReferences is an association between a gvk.GVK (a ReferralTarget)
+// and a list of Referrers that could refer to it.
 //
 // It is used to handle name changes, and can be thought of as a
 // a contact list.  If you change your own contact info (name,
@@ -19,16 +19,20 @@ import (
 // know about the change.
 //
 // For example, ConfigMaps can be used by Pods and everything that
-// contains a Pod; Deployment, Job, StatefulSet, etc.  To change
-// the name of a ConfigMap instance from 'alice' to 'bob', one
-// must visit all objects that could refer to the ConfigMap, see if
-// they mention 'alice', and if so, change the reference to 'bob'.
+// contains a Pod; Deployment, Job, StatefulSet, etc.
+// The ConfigMap is the ReferralTarget, the others are Referrers.
+//
+// If the the name of a ConfigMap instance changed from 'alice' to 'bob',
+// one must
+//  - visit all objects that could refer to the ConfigMap (the Referrers)
+//  - see if they mention 'alice',
+//  - if so, change the Referrer's name reference to 'bob'.
 //
 // The NameBackReferences instance to aid in this could look like
 //   {
 //     kind: ConfigMap
 //     version: v1
-//     FieldSpecs:
+//     fieldSpecs:
 //     - kind: Pod
 //       version: v1
 //       path: spec/volumes/configMap/name
@@ -39,13 +43,15 @@ import (
 //       (etc.)
 //   }
 type NameBackReferences struct {
-	resid.Gvk  `json:",inline,omitempty" yaml:",inline,omitempty"`
-	FieldSpecs types.FsSlice `json:"FieldSpecs,omitempty" yaml:"FieldSpecs,omitempty"`
+	resid.Gvk `json:",inline,omitempty" yaml:",inline,omitempty"`
+	// TODO: rename json 'fieldSpecs' to 'referrers' for clarity.
+	// This will, however, break anyone using a custom config.
+	Referrers types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
 }
 
 func (n NameBackReferences) String() string {
 	var r []string
-	for _, f := range n.FieldSpecs {
+	for _, f := range n.Referrers {
 		r = append(r, f.String())
 	}
 	return n.Gvk.String() + ":  (\n" +
@@ -77,7 +83,7 @@ func (s nbrSlice) mergeOne(other NameBackReferences) (nbrSlice, error) {
 	found := false
 	for _, c := range s {
 		if c.Gvk.Equals(other.Gvk) {
-			c.FieldSpecs, err = c.FieldSpecs.MergeAll(other.FieldSpecs)
+			c.Referrers, err = c.Referrers.MergeAll(other.Referrers)
 			if err != nil {
 				return nil, err
 			}

api/internal/plugins/builtinconfig/namebackreferences_test.go

@@ -50,13 +50,13 @@ func TestMergeAll(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
-			FieldSpecs: fsSlice1,
+			Referrers: fsSlice1,
 		},
 		{
 			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
-			FieldSpecs: fsSlice2,
+			Referrers: fsSlice2,
 		},
 	}
 	nbrsSlice2 := nbrSlice{
@@ -64,13 +64,13 @@ func TestMergeAll(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
-			FieldSpecs: fsSlice1,
+			Referrers: fsSlice1,
 		},
 		{
 			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
-			FieldSpecs: fsSlice2,
+			Referrers: fsSlice2,
 		},
 	}
 	expected := nbrSlice{
@@ -78,13 +78,13 @@ func TestMergeAll(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
-			FieldSpecs: fsSlice1,
+			Referrers: fsSlice1,
 		},
 		{
 			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
-			FieldSpecs: fsSlice2,
+			Referrers: fsSlice2,
 		},
 	}
 	actual, err := nbrsSlice1.mergeAll(nbrsSlice2)

api/internal/plugins/builtinconfig/transformerconfig_test.go

@@ -24,7 +24,7 @@ func TestAddNamereferenceFieldSpec(t *testing.T) {
 		Gvk: resid.Gvk{
 			Kind: "KindA",
 		},
-		FieldSpecs: []types.FieldSpec{
+		Referrers: []types.FieldSpec{
 			{
 				Gvk: resid.Gvk{
 					Kind: "KindB",
@@ -89,7 +89,7 @@ func TestMerge(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "KindA",
 			},
-			FieldSpecs: []types.FieldSpec{
+			Referrers: []types.FieldSpec{
 				{
 					Gvk: resid.Gvk{
 						Kind: "KindB",
@@ -103,7 +103,7 @@ func TestMerge(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "KindA",
 			},
-			FieldSpecs: []types.FieldSpec{
+			Referrers: []types.FieldSpec{
 				{
 					Gvk: resid.Gvk{
 						Kind: "KindC",

api/internal/plugins/builtinhelpers/builtinplugintype_string.go

@@ -23,11 +23,12 @@ func _() {
 	_ = x[ReplicaCountTransformer-12]
 	_ = x[SecretGenerator-13]
 	_ = x[ValueAddTransformer-14]
+	_ = x[HelmChartInflationGenerator-15]
 }
 
-const _BuiltinPluginType_name = "UnknownAnnotationsTransformerConfigMapGeneratorHashTransformerImageTagTransformerLabelTransformerLegacyOrderTransformerNamespaceTransformerPatchJson6902TransformerPatchStrategicMergeTransformerPatchTransformerPrefixSuffixTransformerReplicaCountTransformerSecretGeneratorValueAddTransformer"
+const _BuiltinPluginType_name = "UnknownAnnotationsTransformerConfigMapGeneratorHashTransformerImageTagTransformerLabelTransformerLegacyOrderTransformerNamespaceTransformerPatchJson6902TransformerPatchStrategicMergeTransformerPatchTransformerPrefixSuffixTransformerReplicaCountTransformerSecretGeneratorValueAddTransformerHelmChartInflationGenerator"
 
-var _BuiltinPluginType_index = [...]uint16{0, 7, 29, 47, 62, 81, 97, 119, 139, 163, 193, 209, 232, 255, 270, 289}
+var _BuiltinPluginType_index = [...]uint16{0, 7, 29, 47, 62, 81, 97, 119, 139, 163, 193, 209, 232, 255, 270, 289, 316}
 
 func (i BuiltinPluginType) String() string {
 	if i < 0 || i >= BuiltinPluginType(len(_BuiltinPluginType_index)-1) {