Update OWNERS_ALIASES

.github/ISSUE_TEMPLATE/bug_report.md

@@ -8,7 +8,7 @@ assignees: ""
 ---
 
 <!--
-Please read this page: https://kubectl.docs.kubernetes.io/contributing/kustomize/bugs/ before
+Please read this page: https://kubernetes-sigs.github.io/kustomize/contributing/bugs/ before
 filing a bug
 -->
 

.github/workflows/go.yml

@@ -16,14 +16,14 @@ jobs:
     - name: Set up Go 1.x
       uses: actions/setup-go@v2
       with:
-        go-version: ^1.16
+        go-version: ^1.13
       id: go
 
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
 
     - name: Lint
-      run: ./hack/kyaml-pre-commit.sh
+      run: ./scripts/kyaml-pre-commit.sh
       env:
         KUSTOMIZE_DOCKER_E2E: false # don't need to do e2e tests for linting
 
@@ -35,7 +35,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.13
         id: go
 
       - name: Check out code into the Go module directory
@@ -45,10 +45,6 @@ jobs:
         run: go test -cover ./...
         working-directory: ./kyaml
 
-      - name: Test api
-        run: go test -cover ./... -ldflags "-X sigs.k8s.io/kustomize/api/provenance.version=v444.333.222"
-        working-directory: ./api
-
       - name: Test cmd/config
         run: go test -cover ./...
         working-directory: ./cmd/config
@@ -63,7 +59,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.13
         id: go
 
       - name: Check out code into the Go module directory
@@ -73,10 +69,6 @@ jobs:
         run: go test -cover ./...
         working-directory: ./kyaml
 
-      - name: Test api
-        run: go test -cover ./... -ldflags "-X sigs.k8s.io/kustomize/api/provenance.version=v444.333.222"
-        working-directory: ./api
-
       - name: Test cmd/config
         run: go test -cover ./...
         working-directory: ./cmd/config
@@ -91,7 +83,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.13
         id: go
 
       - name: Check out code into the Go module directory
@@ -101,11 +93,6 @@ jobs:
         run: go test -cover ./...
         working-directory: ./kyaml
 
-      # TODO: uncomment once Windows tests are passing.
-      # - name: Test api
-      #   run: go test -cover ./... -ldflags "-X sigs.k8s.io/kustomize/api/provenance.version=v444.333.222"
-      #   working-directory: ./api
-
       - name: Test cmd/config
         run: go test -cover ./...
         working-directory: ./cmd/config

.gitignore

@@ -21,12 +21,3 @@
 *.DS_store
 
 .bin
-
-# Hugo site
-site/public/
-site/resources/
-site/.hugo_build.lock
-**/node_modules/
-
-# goreleaser artifacts
-**/dist/

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "site/themes/docsy"]
-	path = site/themes/docsy
-	url = https://github.com/google/docsy.git

ARCHITECTURE.md

@@ -1,299 +0,0 @@
-# Architecture
-
-* _Updated: December 2021_
-
-This document describes the repository organization and the kustomize
-build process. It's meant to lower the barrier to learning and
-contributing to the code base.
-
-If not kept up to date, it will just be a historical snapshot.
-
-
-## Repository layout
-
-[human-edited docs]: https://github.com/kubernetes-sigs/cli-experimental/tree/master/site
-[generated docs]: https://github.com/kubernetes-sigs/cli-experimental/tree/master/docs
-[rendered docs]: https://kubectl.docs.kubernetes.io
-[openapi]: https://kubernetes.io/blog/2016/12/kubernetes-supports-openapi
-
-[`api` module]: https://github.com/kubernetes-sigs/kustomize/blob/master/api/go.mod
-[`api`]: #the-api-module
-[`cmd/config` module]: https://github.com/kubernetes-sigs/kustomize/blob/master/cmd/config/go.mod
-[`cmd/config`]: #the-cmdconfig-module
-[`kustomize` module]: https://github.com/kubernetes-sigs/kustomize/blob/master/kustomize/go.mod
-[`kustomize`]: #the-kustomize-module
-[`kyaml` module]: https://github.com/kubernetes-sigs/kustomize/blob/master/kyaml/go.mod
-[`kyaml`]: #the-kyaml-module
-[`kyaml/kio.Filter`]: https://github.com/Kubernetes-sigs/kustomize/blob/master/kyaml/kio/kio.go
-[`go-yaml`]: https://github.com/go-yaml/yaml/tree/v3
-
-
-[3922]: https://github.com/kubernetes-sigs/kustomize/issues/3922
-
-
-
- |  directory  | purpose      |
- | ---------:  | :---------- |
- |       `api` | The [`api`] module, holding high level kustomize code, suitable for import by other programs.  |
- |       `cmd` | Various Go programs aiding repo management. See also `hack`. As an outlier, includes the special [`cmd/config`] module. |
- |      `docs` | Old home of documentation; contains pointers to new homes: [human-edited docs], [generated docs] and [rendered docs]. |
- |  `examples` | Full kustomization examples that run as pre-merge tests.  |
- | `functions` | Examples of plugins in KRM function form. TODO([3922]): Move under `plugin`. |
- |      `hack` | Various shell scripts to help with code management. |
- | `kustomize` | The [`kustomize`] module holds the `main.go` for kustomize. |
- |     `kyaml` | The [`kyaml`] module, holding Kubernetes-specific YAML editing packages used by the [`api`] module. Wraps [`go-yaml`] v3.|
- |    `plugin` | Examples of Kustomize plugins. |
- | `releasing` | Instructions for releasing the various modules. |
- |      `site` | Old generated documentation, kept to provide redirection links to the new docs. |
-
-
-## Modules
-
-[semantically versioned]: https://semver.org
-[Go modules]: https://github.com/golang/go/wiki/Modules
-
-The [Go modules] in the kustomize repository are [semantically versioned].
-
-
-### `kustomize`
-
-> _Depends on [`api`], [`cmd/config`], [`kyaml`]_
-
-The [`kustomize` module] contains the `main.go` for `kustomize`, buildable with
-
-```
-(cd kustomize; go install .)
-```
-
-[appears in kubectl]: https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/kubectl/pkg/cmd/kustomize/kustomize.go
-
-Below this are packages containing
-[cobra](http://github.com/spf13/cobra) commands implementing `build`,
-`edit`, `fix`, etc., packages linked together by `main.go`.
-
-These command packages are intentionally public, semantically
-versioned, and can be used in other programs.  Specifically, the
-`kustomize build` command [appears in kubectl] as `kubectl kustomize`.
-
-The code in the `build` package is dominated by flag validation,
-with minimal business logic.  The critical lines are something
-like
-
-```
-# Make a kustomizer.
-k := krusty.MakeKustomizer(
-  HonorKustomizeFlags(krusty.MakeDefaultOptions()),
-)
-
-# Run the kustomizer, sending location of kustomization.yaml
-m := k.Run(fSys, "/path/to/dir")
-
-# Write the result as YAML.
-writer.Write(m.AsYaml())
-```
-
-The `krusty` package is in the [`api`] module.
-
-### `api`
-
-> _Depends on [`kyaml`] and code generated from builtin plugin modules_
-
-The [`api` module] is used by CLI programs like `kustomize` and `kubectl`
-to read and honor `kustomization.yaml` files and all that implies.
-
-The main public packages in the [`api` module] are
-
- | package   |             |
- | --------: | :---------- |
- | `filters` | Implementations of [`kyaml/kio.Filter`] used by kustomize to transform Kubernetes objects. |
- |  `konfig` | Configuration methods and constants in the kustomize API. |
- |  `krusty` | Primary API entry point.  Holds the kustomizer and hundreds of tests for it. |
- |  `loader` | Loads kustomization files and the files they refer to, enforcing security rules. |
- |  `resmap` | The primary internal data structure over which the kustomizer and filters work. |
- |   `types` | The `Kustomization` object and ancillary structs. |
-
-### `cmd/config`
-
-> _Depends on [`kyaml`]_
-
-This module contains cobra commands and kyaml-based functionality to
-provide unix-like file manipulation commands to kustomize like `grep`
-and `tree`.  These commands may be included in any program that
-manipulates k8s YAML (e.g. kustomize).
-
-### `kyaml`
-
-> _Has no in-repo dependence_
-
-The [`kyaml` module] is a kubernetes-focussed enhancement of [go-yaml].
-
-The YAML manipulation performed by a kustomize is based on these libraries.
-
-These libraries evolve independently of kustomize, and other programs depend on them.
-
-The key public packages in the [`kyaml` module] include
-
- | package   |             |
- | --------: | :---------- |
- | `errors` | Wrapper for the go-errors/errors lib |
- | `filesys` | A kustomize-specific file system abstraction, to ease writing tests |
- | `fn/framework` | An SDK for writing KRM Functions in Go |
- | `fn/runtime` | Implements the runtime for KRM Function extensions |
- | `kio` | Libraries for reading and writing collections of Kubernetes resources as RNodes |
- | `openapi` | Loads and accesses openapi schemas for schema-aware resource manipultaion |
- | `resid` | Representations to aid in unique identification of Kubernetes resources |
- | `yaml` | A Kubernetes-focused wrapper of [go-yaml], notably including the RNode object |
-
-
--------
-
-## How _kustomize build_ works
-
-The command `kustomize build` accepts a single string argument,
-which must resolve to a directory, possibly in a git repository,
-called the _kustomization root_.
-
-This directory must contain a file called `kustomization.yaml`, with
-YAML that marshals into a single instance of a `Kustomization` object.
-
-For the remainder of this document, the word _kustomization_ refers to
-either of these things.
-
-This kustomization is the access point to a directed, acyclic graph of
-Kubernetes objects, including other kustomizations, to include in a
-build.
-
-Execution of `build` starts and ends in the [`api`] module,
-frequently dipping into the [`kyaml`] module for lower level
-YAML manipulation.
-
-### The `build` flow
-
-  - Validate command lines arguments and flags.
-
-  - Make a `Kustomizer` as a function of those arguments.
-
-  - Call `Run` on the kustomizer, passing it the path to the
-    kustomization.
-
-    `Run` returns an instance of `ResMap`, the `api` package's
-    representation of a set of kubernetes `Resource` objects.
-
-    This structure offers resource lookup methods (map behavior),
-    but also retains the resources in the order they were
-    specified in kustomization files (list behavior).
-
-    Post-run, the objects are fully hydrated, per the
-    instructions in the kustomization.
-
-  - Marshal the objects as YAML to a file or `stdout`.
-
-
-### The `Run` function
-
-  - Create various objects
-
-    - A `ResMap` factory.
-
-      Makes  `ResMaps` from byte streams, other `ResMaps`, etc.
-
-    - A file `loader.Loader`.
-
-      It's fed an appropriate set of restrictions, and the path to the kustomization.
-
-    - A plugin loader.
-
-      It finds plugins (transformers, generators or validators)
-      and prepares them for running.
-
-    - A `KustTarget` encapsulating all of the above.
-
-      A KustTarget contains one `Kustomization` and represents
-	  everything that kustomization can reach.  This will include
-	  other `KustTarget` instances, each having a smaller purview than
-	  the one referencing it.
-
-  - Call `KustTarget.Load` to load its kustomization.
-
-    This step deals with deprecations and field changes.
-
-  - Load [openapi] data specified by the kustomization.
-
-    This is needed to recognize k8s kinds and their special
-    properties, e.g. which kinds are cluster-scoped, which kinds
-    refer to others, etc.
-
-  - Call `KustTarget.makeCustomizedResmap` to create the `ResMap` result.
-
-    This visits everything referenced by the kustomization,
-    performing all generation, transformation and validation.
-
-  - Finish the `Run` with
-
-    - Optional reordering of objects in `ResMap`, overriding the
-      FIFO rule.
-
-    - Optional addition of _kustomize build annotations_ to the
-      resources.  E.g. from which repo and file the resource was
-      read, the fact that kustomize touched the resource, etc.
-      These kustomize-specific annotations are intended for
-      server-side data analytics, file structure traceability and
-      reconstruction, etc.
-
-### The `makeCustomizedResmap` function
-
-  This function starts the process of object transformation,
-  as well as accumulation of recursively referenced data.
-
-  - Call `ra := KustTarget.AccumulateTarget`.
-
-    The result, `ra`, is a resource accumulator that contains
-    everything referred to by the current kustomization, now fully
-    hydrated.
-
-  - Uniquify names of generated objects by appending content hashes.
-
-    This cannot be done until the objects are complete.
-
-  - Fix all name references (given that names may have changed).
-
-    E.g. if a ConfigMaps was given a generated name, all objects that
-    refer to that ConfigMap must be given its name.
-
-  - Resolve vars, replacing them with whatever they refer to (a legacy feature).
-
-### The `AccumulateTarget` function
-
-  - Call `AccumulateResources` over the `resources` field (this can recurse).
-  - Call `AccumulateComponents` over the `components` field (this can recurse),
-  - Load legacy (pre-plugin) global kustomize configuration,
-  - Load legacy (pre-openapi) _Custom Resource Definition_ data.
-  - In the context of the data loaded above, run the kustomization's
-    - generators,
-    - transformers,
-    - and validators.
-  - Accumulate `vars` (make note of them for later replacement).
-
-### `AccumulateResources` and component accumulation
-
-  - If the path is a file:
-    - Accumulate the objects in the file (treating them
-      as opaque kubernetes objects).
-
-  - If the path is a directory:
-    - Create a new `KustTarget` referring to that directory's kustomization.
-	- Call `subRa := KustTarget.AccumulateTarget`.
-    - Call `ra.MergeAccumulator(subRa)`
-	This completes a recursion.
-
-  - If the path is a git URL:
-    - Clone the repository to a temporary directory.
-    - Process the path optionally specified in the URL
-      as a path in the clone.
-	- If no path specified, work from the repository root.
-
-
-That's as deep as this discussion will go.
-
-The deeper this document goes into the details, the faster
-it will get out of date.

CONTRIBUTING.md

@@ -1,25 +1,6 @@
-[SIG-CLI]: https://github.com/kubernetes/community/tree/master/sig-cli
-[Slack channel]: https://kubernetes.slack.com/messages/kustomize
-[Mailing list]: https://groups.google.com/forum/#!forum/kubernetes-sig-cli
-
-[OWNERS file spec]: https://github.com/kubernetes/community/blob/master/contributors/guide/owners.md
-[Kustomize OWNERS_ALIASES]: https://github.com/kubernetes-sigs/kustomize/blob/8049f7b1af52e8a7ec26faf6cf714f560d0043c5/OWNERS_ALIASES
-[SIG-CLI Teams]: https://github.com/kubernetes/org/blob/main/config/kubernetes-sigs/sig-cli/teams.yaml
-[Github permissions]: https://docs.github.com/en/organizations/managing-access-to-your-organizations-repositories/repository-permission-levels-for-an-organization#repository-access-for-each-permission-level
-
-[Contributor License Agreement]: https://git.k8s.io/community/CLA.md
-[Kubernetes Contributor Guide]: http://git.k8s.io/community/contributors/guide
-[Contributor Cheat Sheet]: https://git.k8s.io/community/contributors/guide/contributor-cheatsheet/README.md
-[CNCF Code of Conduct]: https://github.com/cncf/foundation/blob/master/code-of-conduct.md
-[Kubernetes Community Membership]: https://github.com/kubernetes/community/blob/master/community-membership.md
-
-[Contribution Guide]: https://kubectl.docs.kubernetes.io/contributing/kustomize/
-[MacOS Dev Guide]: https://kubectl.docs.kubernetes.io/contributing/kustomize/mac/
-[Windows Dev Guide]: https://kubectl.docs.kubernetes.io/contributing/kustomize/windows/
-
 # Contributing Guidelines
 
-Welcome to Kubernetes. We are excited about the prospect of you joining our [community](https://github.com/kubernetes/community)! The Kubernetes community abides by the [CNCF Code of Conduct]. Here is an excerpt:
+Welcome to Kubernetes. We are excited about the prospect of you joining our [community](https://github.com/kubernetes/community)! The Kubernetes community abides by the CNCF [code of conduct](code-of-conduct.md). Here is an excerpt:
 
 _As contributors and maintainers of this project, and in the interest of fostering an open and welcoming community, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities._
 
@@ -27,45 +8,19 @@ _As contributors and maintainers of this project, and in the interest of fosteri
 
 Dev guides:
 
-- [Contribution Guide]
-- [MacOS Dev Guide]
-- [Windows Dev Guide]
+- [Mac](docs/macDevGuide.md)
 
-General resources for contributors:
+We have full documentation on how to get started contributing here:
 
-- [Contributor License Agreement] - Kubernetes projects require that you sign a Contributor License Agreement (CLA) before we can accept your pull requests.
-- [Kubernetes Contributor Guide] - Main contributor documentation.
-- [Contributor Cheat Sheet] - Common resources for existing developers.
-
-Here are some additional ideas to help you get started with Kustomize:
-- Attend a Kustomize Bug Scrub. Check the [SIG-CLI] meetings list to find the next one.
-- Help triage issues by confirming validity and applying the appropriate `kind` label (e.g. comment `/kind bug`).
-- Pick up an issue to fix. Issues with the `help-wanted` label are a good place to start, but you can also look for any issue with the `triage/accepted` label and no assignee. Remember to `/assign` yourself to let others know you're working on it.
-- Help confirm new issues labelled `kind/bug` by reproducing them with the latest release.
-- Support Kustomize users by responding to questions on issues labelled `kind/support` or in the [Slack channel].
+- [Contributor License Agreement](https://git.k8s.io/community/CLA.md) Kubernetes projects require that you sign a Contributor License Agreement (CLA) before we can accept your pull requests
+- [Kubernetes Contributor Guide](http://git.k8s.io/community/contributors/guide) - Main contributor documentation, or you can just jump directly to the [contributing section](http://git.k8s.io/community/contributors/guide#contributing)
+- [Contributor Cheat Sheet](https://git.k8s.io/community/contributors/guide/contributor-cheatsheet/README.md) - Common resources for existing developers
 
 ## Mentorship
 
 - [Mentoring Initiatives](https://git.k8s.io/community/mentoring) - We have a diverse set of mentorship programs available that are always looking for volunteers!
 
-## Contributor Ladder
-
-Kustomize follows the [Kubernetes Community Membership] contributor ladder. Roles are as follows:
-
-1. Contributor: Anyone who actively contributes code, issues or reviews to the project. All contributors must sign the [Contributor License Agreement].
-1. Reviewer: Contributors with a history of review and authorship on Kustomize. Has LGTM rights on the Kustomize repo (as do all kubernetes-sigs org members). Active contributors are encouraged to join the reviewers list to be automatically pinged on PRs.
-1. Approver: Highly experienced active reviewer and contributor to Kustomize. Has both LTGM and approval rights on the Kustomize repo, as well as "maintain" [Github permissions].
-1. Owner: Approver who sets technical direction and makes or approves design decisions for the project. Has LGTM and approval rights on the Kustomize repo as well as "admin" [Github permissions].
-
-The kyaml module within the Kustomize repo has additional owners following the same ladder.
-
-Administrative notes:
-
-- The [OWNERS file spec] is a useful resources in making changes.
-- Maintainers and admins must be added to the appropriate lists in both [Kustomize OWNERS_ALIASES] and [SIG-CLI Teams]. If this isn't done, the individual in question will lack either PR approval rights (Kustomize list) or the appropriate Github repository permissions (community list).
-
-
 ## Contact Information
 
-- [Slack channel]
-- [Mailing list]
+- [Slack channel](https://kubernetes.slack.com/messages/sig-cli)
+- [Mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-cli)

Makefile

@@ -4,15 +4,12 @@
 # Makefile for kustomize CLI and API.
 
 SHELL := /usr/bin/env bash
-GOOS = $(shell go env GOOS)
-GOARCH = $(shell go env GOARCH)
 MYGOBIN = $(shell go env GOBIN)
 ifeq ($(MYGOBIN),)
 MYGOBIN = $(shell go env GOPATH)/bin
 endif
 export PATH := $(MYGOBIN):$(PATH)
 MODULES := '"cmd/config" "api/" "kustomize/" "kyaml/"'
-LATEST_V4_RELEASE=v4.5.3
 
 # Provide defaults for REPO_OWNER and REPO_NAME if not present.
 # Typically these values would be provided by Prow.
@@ -25,47 +22,58 @@ REPO_NAME := "kustomize"
 endif
 
 .PHONY: all
-all: install-tools verify-kustomize
+all: verify-kustomize
 
 .PHONY: verify-kustomize
 verify-kustomize: \
 	lint-kustomize \
 	test-unit-kustomize-all \
 	test-examples-kustomize-against-HEAD \
-	test-examples-kustomize-against-v4-release
+	test-examples-kustomize-against-4.0
 
 # 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: \
-	install-tools \
 	lint-kustomize \
+	test-multi-module \
 	test-unit-kustomize-all \
 	test-unit-cmd-all \
 	test-go-mod \
 	test-examples-kustomize-against-HEAD \
-	test-examples-kustomize-against-v4-release
+	test-examples-kustomize-against-4.0
 
 .PHONY: verify-kustomize-e2e
 verify-kustomize-e2e: test-examples-e2e-kustomize
 
 # Other builds in this repo might want a different linter version.
 # Without one Makefile to rule them all, the different makes
-# cannot assume that golanci-lint is at the version they want.
-# This installs what kustomize wants to use.
+# cannot assume that golanci-lint is at the version they want
+# since everything uses the same implicit GOPATH.
+# This installs in a temp dir to avoid overwriting someone else's
+# linter, then installs in MYGOBIN with a new name.
+# Version pinned by hack/go.mod
 $(MYGOBIN)/golangci-lint-kustomize:
-	rm -f $(CURDIR)/hack/golangci-lint
-	GOBIN=$(CURDIR)/hack go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.23.8
-	mv $(CURDIR)/hack/golangci-lint $(MYGOBIN)/golangci-lint-kustomize
+	( \
+		set -e; \
+		cd hack; \
+		GO111MODULE=on go build -tags=tools -o $(MYGOBIN)/golangci-lint-kustomize github.com/golangci/golangci-lint/cmd/golangci-lint; \
+	)
 
+# Install from version specified in api/go.mod.
 $(MYGOBIN)/mdrip:
-	go install github.com/monopole/mdrip@v1.0.2
+	cd api; \
+	go install github.com/monopole/mdrip
 
+# Install from version specified in api/go.mod.
 $(MYGOBIN)/stringer:
-	go get golang.org/x/tools/cmd/stringer
+	cd api; \
+	go install golang.org/x/tools/cmd/stringer
 
+# Install from version specified in api/go.mod.
 $(MYGOBIN)/goimports:
-	go get golang.org/x/tools/cmd/goimports
+	cd api; \
+	go install golang.org/x/tools/cmd/goimports
 
 # Build from local source.
 $(MYGOBIN)/gorepomod:
@@ -82,6 +90,11 @@ $(MYGOBIN)/pluginator:
 	cd cmd/pluginator; \
 	go install .
 
+# Build from local source.
+$(MYGOBIN)/prchecker:
+	cd cmd/prchecker; \
+	go install .
+
 # Build from local source.
 $(MYGOBIN)/kustomize: build-kustomize-api
 	cd kustomize; \
@@ -96,6 +109,7 @@ install-tools: \
 	$(MYGOBIN)/k8scopy \
 	$(MYGOBIN)/mdrip \
 	$(MYGOBIN)/pluginator \
+	$(MYGOBIN)/prchecker \
 	$(MYGOBIN)/stringer
 
 ### Begin kustomize plugin rules.
@@ -120,14 +134,13 @@ install-tools: \
 #   module (it's linked into the api).
 
 # Where all generated builtin plugin code should go.
-pGen=api/internal/builtins
+pGen=api/builtins
 # Where the builtin Go plugin modules live.
 pSrc=plugin/builtin
 
 _builtinplugins = \
 	AnnotationsTransformer.go \
 	ConfigMapGenerator.go \
-	IAMPolicyGenerator.go \
 	HashTransformer.go \
 	ImageTagTransformer.go \
 	LabelTransformer.go \
@@ -136,8 +149,7 @@ _builtinplugins = \
 	PatchJson6902Transformer.go \
 	PatchStrategicMergeTransformer.go \
 	PatchTransformer.go \
-	PrefixTransformer.go \
-	SuffixTransformer.go \
+	PrefixSuffixTransformer.go \
 	ReplacementTransformer.go \
 	ReplicaCountTransformer.go \
 	SecretGenerator.go \
@@ -156,7 +168,6 @@ builtinplugins = $(patsubst %,$(pGen)/%,$(_builtinplugins))
 # that file, will be recreated.
 $(pGen)/AnnotationsTransformer.go: $(pSrc)/annotationstransformer/AnnotationsTransformer.go
 $(pGen)/ConfigMapGenerator.go: $(pSrc)/configmapgenerator/ConfigMapGenerator.go
-$(pGen)/GkeSaGenerator.go: $(pSrc)/gkesagenerator/GkeSaGenerator.go
 $(pGen)/HashTransformer.go: $(pSrc)/hashtransformer/HashTransformer.go
 $(pGen)/ImageTagTransformer.go: $(pSrc)/imagetagtransformer/ImageTagTransformer.go
 $(pGen)/LabelTransformer.go: $(pSrc)/labeltransformer/LabelTransformer.go
@@ -165,8 +176,7 @@ $(pGen)/NamespaceTransformer.go: $(pSrc)/namespacetransformer/NamespaceTransform
 $(pGen)/PatchJson6902Transformer.go: $(pSrc)/patchjson6902transformer/PatchJson6902Transformer.go
 $(pGen)/PatchStrategicMergeTransformer.go: $(pSrc)/patchstrategicmergetransformer/PatchStrategicMergeTransformer.go
 $(pGen)/PatchTransformer.go: $(pSrc)/patchtransformer/PatchTransformer.go
-$(pGen)/PrefixTransformer.go: $(pSrc)/prefixtransformer/PrefixTransformer.go
-$(pGen)/SuffixTransformer.go: $(pSrc)/suffixtransformer/SuffixTransformer.go
+$(pGen)/PrefixSuffixTransformer.go: $(pSrc)/prefixsuffixtransformer/PrefixSuffixTransformer.go
 $(pGen)/ReplacementTransformer.go: $(pSrc)/replacementtransformer/ReplacementTransformer.go
 $(pGen)/ReplicaCountTransformer.go: $(pSrc)/replicacounttransformer/ReplicaCountTransformer.go
 $(pGen)/SecretGenerator.go: $(pSrc)/secretgenerator/SecretGenerator.go
@@ -201,7 +211,7 @@ clean-kustomize-external-go-plugin:
 ### End kustomize plugin rules.
 
 .PHONY: lint-kustomize
-lint-kustomize: $(MYGOBIN)/golangci-lint-kustomize $(builtinplugins)
+lint-kustomize: install-tools $(builtinplugins)
 	cd api; $(MYGOBIN)/golangci-lint-kustomize \
 	  -c ../.golangci-kustomize.yml \
 	  run ./...
@@ -225,7 +235,6 @@ generate-kustomize-api: $(MYGOBIN)/k8scopy
 .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"
-	cd api/krusty; OPENAPI_TEST=true go test -run TestCustomOpenAPIFieldFromComponentWithOverlays
 
 .PHONY: test-unit-kustomize-plugins
 test-unit-kustomize-plugins:
@@ -242,10 +251,23 @@ test-unit-kustomize-all: \
 	test-unit-kustomize-plugins
 
 test-unit-cmd-all:
-	./hack/kyaml-pre-commit.sh
+	./scripts/kyaml-pre-commit.sh
 
 test-go-mod:
-	./hack/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
@@ -262,8 +284,8 @@ test-examples-kustomize-against-HEAD: $(MYGOBIN)/kustomize $(MYGOBIN)/mdrip
 	./hack/testExamplesAgainstKustomize.sh HEAD
 
 .PHONY:
-test-examples-kustomize-against-v4-release: $(MYGOBIN)/mdrip
-	./hack/testExamplesAgainstKustomize.sh v4@$(LATEST_V4_RELEASE)
+test-examples-kustomize-against-4.0: $(MYGOBIN)/mdrip
+	./hack/testExamplesAgainstKustomize.sh v4@v4.0.5
 
 # linux only.
 # This is for testing an example plugin that
@@ -275,8 +297,8 @@ $(MYGOBIN)/kubeval:
 	( \
 		set -e; \
 		d=$(shell mktemp -d); cd $$d; \
-		wget https://github.com/instrumenta/kubeval/releases/latest/download/kubeval-$(GOOS)-$(GOARCH).tar.gz; \
-		tar xf kubeval-$(GOOS)-$(GOARCH).tar.gz; \
+		wget https://github.com/instrumenta/kubeval/releases/latest/download/kubeval-linux-amd64.tar.gz; \
+		tar xf kubeval-linux-amd64.tar.gz; \
 		mv kubeval $(MYGOBIN); \
 		rm -rf $$d; \
 	)
@@ -290,10 +312,10 @@ $(MYGOBIN)/helmV2:
 	( \
 		set -e; \
 		d=$(shell mktemp -d); cd $$d; \
-		tgzFile=helm-v2.13.1-$(GOOS)-$(GOARCH).tar.gz; \
+		tgzFile=helm-v2.13.1-linux-amd64.tar.gz; \
 		wget https://storage.googleapis.com/kubernetes-helm/$$tgzFile; \
 		tar -xvzf $$tgzFile; \
-		mv $(GOOS)-$(GOARCH)/helm $(MYGOBIN)/helmV2; \
+		mv linux-amd64/helm $(MYGOBIN)/helmV2; \
 		rm -rf $$d \
 	)
 
@@ -303,10 +325,10 @@ $(MYGOBIN)/helmV3:
 	( \
 		set -e; \
 		d=$(shell mktemp -d); cd $$d; \
-		tgzFile=helm-v3.6.3-$(GOOS)-$(GOARCH).tar.gz; \
+		tgzFile=helm-v3.5.3-linux-amd64.tar.gz; \
 		wget https://get.helm.sh/$$tgzFile; \
 		tar -xvzf $$tgzFile; \
-		mv $(GOOS)-$(GOARCH)/helm $(MYGOBIN)/helmV3; \
+		mv linux-amd64/helm $(MYGOBIN)/helmV3; \
 		rm -rf $$d \
 	)
 
@@ -314,7 +336,7 @@ $(MYGOBIN)/kind:
 	( \
         set -e; \
         d=$(shell mktemp -d); cd $$d; \
-        wget -O ./kind https://github.com/kubernetes-sigs/kind/releases/download/v0.7.0/kind-$(GOOS)-$(GOARCH); \
+        wget -O ./kind https://github.com/kubernetes-sigs/kind/releases/download/v0.7.0/kind-$(shell uname)-amd64; \
         chmod +x ./kind; \
         mv ./kind $(MYGOBIN); \
         rm -rf $$d; \
@@ -325,10 +347,10 @@ $(MYGOBIN)/gh:
 	( \
 		set -e; \
 		d=$(shell mktemp -d); cd $$d; \
-		tgzFile=gh_1.0.0_$(GOOS)_$(GOARCH).tar.gz; \
+		tgzFile=gh_1.0.0_linux_amd64.tar.gz; \
 		wget https://github.com/cli/cli/releases/download/v1.0.0/$$tgzFile; \
 		tar -xvzf $$tgzFile; \
-		mv gh_1.0.0_$(GOOS)_$(GOARCH)/bin/gh  $(MYGOBIN)/gh; \
+		mv gh_1.0.0_linux_amd64/bin/gh  $(MYGOBIN)/gh; \
 		rm -rf $$d \
 	)
 
@@ -336,11 +358,8 @@ $(MYGOBIN)/gh:
 clean: clean-kustomize-external-go-plugin
 	go clean --cache
 	rm -f $(builtinplugins)
-	rm -f $(MYGOBIN)/goimports
-	rm -f $(MYGOBIN)/golangci-lint-kustomize
 	rm -f $(MYGOBIN)/kustomize
-	rm -f $(MYGOBIN)/mdrip
-	rm -f $(MYGOBIN)/stringer
+	rm -f $(MYGOBIN)/golangci-lint-kustomize
 
 # Handle pluginator manually.
 # rm -f $(MYGOBIN)/pluginator

OWNERS

@@ -1,6 +1,4 @@
 # See https://github.com/kubernetes/community/blob/master/community-membership.md
 approvers:
-  - kustomize-approvers
-
-reviewers:
-  - kustomize-reviewers
+  - kustomize-admins
+  - kustomize-maintainers

OWNERS_ALIASES

@@ -1,29 +1,14 @@
-# Keep *-owners and *-approvers lists in sync with *-admins and *-maintainers in
-# https://github.com/kubernetes/org/blob/main/config/kubernetes-sigs/sig-cli/teams.yaml
 aliases:
-  kustomize-owners:
+  kustomize-admins:
     - knverey
-    - natasha41575
-  kustomize-approvers:
-    - knverey
-    - natasha41575
-  kustomize-reviewers:
-    - knverey
-    - natasha41575
-    - yuwenma
-
-  kyaml-approvers:
-    - mengqiy
-    - mortent
-    - phanimarupaka
-  kyaml-reviewers:
-    - mengqiy
-    - mortent
-    - phanimarupaka
-
-  emeritus-approvers:
-    - liujingfang1
-    - Shell32-Natsu
-    - justinsb
     - monopole
+  kustomize-maintainers:
+    - droot
+    - justinsb
+    - liujingfang1
+    - monopole
+    - mortent
+    - natasha41575
+    - phanimarupaka
     - pwittrock
+    - Shell32-Natsu

README.md

@@ -11,8 +11,8 @@ and it's like [`sed`], in that it emits edited text.
 
 This tool is sponsored by [sig-cli] ([KEP]).
 
- - [Installation instructions](https://kubectl.docs.kubernetes.io/installation/kustomize/)
- - [General documentation](https://kubectl.docs.kubernetes.io/references/kustomize/)
+ - [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)
@@ -22,25 +22,18 @@ This tool is sponsored by [sig-cli] ([KEP]).
 
 The kustomize build flow at [v2.0.3] was added
 to [kubectl v1.14][kubectl announcement].  The kustomize
-flow in kubectl remained frozen at v2.0.3 until kubectl v1.21,
-which [updated it to v4.0.5][kust-in-kubectl update]. It will
-be updated on a regular basis going forward, and such updates
-will be reflected in the Kubernetes release notes.
+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 |
-| --- | --- |
-| < v1.14 | n/a |
-| v1.14-v1.20 | v2.0.3 |
-| v1.21 | v4.0.5 |
-| v1.22 | v4.2.0 |
-
-[v2.0.3]: https://github.com/kubernetes-sigs/kustomize/releases/tag/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
-[kust-in-kubectl update]: https://github.com/kubernetes/kubernetes/blob/4d75a6238a6e330337526e0513e67d02b1940b63/CHANGELOG/CHANGELOG-1.21.md#kustomize-updates-in-kubectl
 
 For examples and guides for using the kubectl integration please
-see the [kubernetes documentation].
+see the [kubectl book] or the [kubernetes documentation].
 
 ## Usage
 
@@ -141,9 +134,8 @@ The YAML can be directly [applied] to a cluster:
 
 ## Community
 
-- [file a bug](https://kubectl.docs.kubernetes.io/contributing/kustomize/bugs/)
-- [contribute a feature](https://kubectl.docs.kubernetes.io/contributing/kustomize/features/)
-- [propose a larger enhancement](https://github.com/kubernetes-sigs/kustomize/tree/master/proposals)
+- [file a bug](https://kubernetes-sigs.github.io/kustomize/contributing/bugs/) instructions
+- [contribute a feature](https://kubernetes-sigs.github.io/kustomize/contributing/features/) instructions
 
 ### Code of conduct
 
@@ -152,22 +144,27 @@ is governed by the [Kubernetes Code of Conduct].
 
 [`make`]: https://www.gnu.org/software/make
 [`sed`]: https://www.gnu.org/software/sed
-[DAM]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#declarative-application-management
-[KEP]: https://github.com/kubernetes/enhancements/blob/master/keps/sig-cli/2377-Kustomize/README.md
+[DAM]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#declarative-application-management
+[KEP]: https://github.com/kubernetes/enhancements/blob/master/keps/sig-cli/0008-kustomize.md
 [Kubernetes Code of Conduct]: code-of-conduct.md
-[applied]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#apply
-[base]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#base
-[declarative configuration]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#declarative-application-management
-[imageBase]: images/base.jpg
-[imageOverlay]: images/overlay.jpg
+[applied]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#apply
+[base]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#base
+[declarative configuration]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#declarative-application-management
+[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/guides/introduction/kustomize/
 [kubernetes documentation]: https://kubernetes.io/docs/tasks/manage-kubernetes-objects/kustomization/
-[kubernetes style]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#kubernetes-style-object
-[kustomization]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#kustomization
-[overlay]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#overlay
-[overlays]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#overlay
+[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
+[overlay]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#overlay
+[overlays]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#overlay
 [release page]: https://github.com/kubernetes-sigs/kustomize/releases
-[resource]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#resource
-[resources]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#resource
+[resource]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#resource
+[resources]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#resource
 [sig-cli]: https://github.com/kubernetes/community/blob/master/sig-cli/README.md
-[variants]: https://kubectl.docs.kubernetes.io/references/kustomize/glossary/#variant
+[variant]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#variant
+[variants]: https://kubernetes-sigs.github.io/kustomize/api-reference/glossary#variant
+[v2.0.3]: https://github.com/kubernetes-sigs/kustomize/releases/tag/v2.0.3
+[v2.1.0]: https://github.com/kubernetes-sigs/kustomize/releases/tag/v2.1.0
+[workflows]: https://kubernetes-sigs.github.io/kustomize/guides

ROADMAP.md

@@ -1,112 +0,0 @@
-# Kustomize roadmap 2022
-
-Presented at the [January 26, 2022, SIG-CLI meeting](https://youtu.be/l2plzJ9MRlk?t=1321)
-
-kustomize maintainers: @knverey, @natasha41575
-
-[Objective: Improve contributor community](#objective-improve-contributor-community)
-
-[Objective: Improve end-user experience](#objective-improve-end-user-experience)
-
-[Objective: Improve extension experience](#objective-improve-extension-experience)
-
-## Objective: Improve contributor community
-
-**_WHO: End user who also contributes source code._**
-
-Top priority:
-
-- Kustomization v1 (also end-user impact) ([PROJECT](https://github.com/kubernetes-sigs/kustomize/projects/12))
-  - Remove the following fields:
-    - [vars](https://github.com/kubernetes-sigs/kustomize/issues/2052)
-    - [patchesJson6902, patchesStrategicMerge (consolidate on \`patches)](https://github.com/kubernetes-sigs/kustomize/issues/4376)
-    - [helmChartInflationGenerator, helmCharts, helmGlobals](https://github.com/kubernetes-sigs/kustomize/issues/4401)
-    - all long-deprecated fields in Kustomization v1 such as \`bases\` and those being accommodate by kustomize edit \[[see code snippet](https://github.com/kubernetes-sigs/kustomize/blob/ee4b7847f0beb6c0d2070673b10f23f7b3e92e82/api/types/fix.go#L15)\]
-  - Ensure that \`kustomize edit fix\` handles migrations for all those, and that anything it changes is not still present in v1.
-  - [Add reorder field](https://github.com/kubernetes-sigs/kustomize/issues/3913). Default should be FIFO and legacy should also be supported (could add alphabetic and custom sort support eventually). Replaces -reorder flag.
-  - [Reconcile openapi and crds field](https://github.com/kubernetes-sigs/kustomize/issues/3944)
-  - [Consider deprecating configurations field](https://github.com/kubernetes-sigs/kustomize/issues/3945) (old, pre-plugin, pre-openapi global configuration)
-  - [Add a field to enable the managedby label](https://github.com/kubernetes-sigs/kustomize/issues/4047)
-
-Second priority:
-
-- Improve contributor documentation
-  - [Instructions to upgrade kustomize-in-kubectl](https://github.com/kubernetes-sigs/kustomize/issues/3951)
-
-Also very valuable to the project:
-
-- [Improve the release process](https://github.com/kubernetes-sigs/kustomize/issues/3952) to support regular biweekly releases [PROJECT](https://github.com/kubernetes-sigs/kustomize/projects/7)
-- Release sigs.k8s.io/kustomize/api v1.0.0 [PROJECT](https://github.com/kubernetes-sigs/kustomize/projects/5)
-  - [Reduce the public surface of the API module](https://github.com/kubernetes-sigs/kustomize/issues/3942)
-  - [Vendor all transitive deps](https://github.com/kubernetes-sigs/kustomize/issues/3706). Since kustomize is in kubectl, we must do as kubectl does to manage deps, exposing new transitive deps in code review.
-- Project administration
-  - [Rename master branch to main](https://github.com/kubernetes-sigs/kustomize/issues/3954)
-
-
-
-## Objective: Improve end-user experience
-
-**_WHO: End user that wants kustomize build artifacts (binaries, containers)._**
-
-Top priorities:
-
-- Bug fixes:
-  - Fix bugs in basic anchor support: [issue query](https://github.com/kubernetes-sigs/kustomize/issues?q=is%3Aopen+is%3Aissue+label%3Aarea%2Fanchors)
-  - integer keys support: [#3446](https://github.com/kubernetes-sigs/kustomize/issues/3446)
-  - kyaml not respecting \`$patch replace|retainKeys\`: [#2037](https://github.com/kubernetes-sigs/kustomize/issues/2037)
-  - kustomize removing quotes from namespace field values: [#4146](https://github.com/kubernetes-sigs/kustomize/issues/4146)
-  - Kustomize doesn’t support metadata.generateName: [#641](https://github.com/kubernetes-sigs/kustomize/issues/641)
-- Send kustomize CLI version number into kubectl ([kubectl issue](https://github.com/kubernetes/kubectl/issues/797) / [kustomize issue](https://github.com/kubernetes-sigs/kustomize/issues/1424))
-- Kustomize performance investigations/improvements [PROJECT](https://github.com/kubernetes-sigs/kustomize/projects/13)
-- [Support generic resource references in name reference tracking](https://github.com/kubernetes-sigs/kustomize/issues/3418)
-- [KEP 4267: retain the resource origin and transformer data in annotations](https://github.com/kubernetes-sigs/kustomize/pull/4267)
-
-Secondary priorities:
-
-- kustomize cli v5 ([PROJECT](https://github.com/kubernetes-sigs/kustomize/projects/14))
-  - [Drop the --reorder flag](https://github.com/kubernetes-sigs/kustomize/issues/3947)
-  - [Graduate cfg read-only commands out of alpha](https://github.com/kubernetes-sigs/kustomize/issues/4090).
-  - [Drop the –enable-managedby-label](https://github.com/kubernetes-sigs/kustomize/issues/4047)
-  - Drop old plugin-related fields in favor of [the Catalog-style fields](https://github.com/kubernetes/enhancements/tree/master/keps/sig-cli/2906-kustomize-function-catalog).
-  - [Drop the helm flags](https://github.com/kubernetes-sigs/kustomize/issues/4401)
-- [Confusion around namespace replacement](https://github.com/kubernetes-sigs/kustomize/issues/880).
-
-Also very valuable to the project:
-
-- [Overinclusion of root directory error in error messages](https://github.com/kubernetes-sigs/kustomize/issues/4348)
-- [Add kustomize localize command](https://github.com/kubernetes-sigs/kustomize/issues/3980)
-- [Fix Windows support in test suite](https://github.com/kubernetes-sigs/kustomize/issues/4001)
-- Improve end-user documentation [PROJECT](https://github.com/kubernetes-sigs/kustomize/projects/9)
-
-
-## Objective: Improve extension experience
-
-**_WHO: Plugin developers: end users who extend kustomize, but don’t think about internals._**
-
-This objective is described in detail in the [Kustomize Plugin Graduation KEP](https://github.com/kubernetes/enhancements/tree/master/keps/sig-cli/2953-kustomize-plugin-graduation) / [PROJECT](https://github.com/kubernetes-sigs/kustomize/projects/15) .
-
-Top priorities:
-
-- Fix core usability issues with KRM Function extensions:
-  - [Better errors for function config failures](https://github.com/kubernetes-sigs/kustomize/issues/4398)
-  - [Container KRM Mounts are not mounting via function parameters](https://github.com/kubernetes-sigs/kustomize/issues/4290)
-  - [Resolution of local file references in extensions transformer configuration](https://github.com/kubernetes-sigs/kustomize/issues/4154)
-  - [Do not silently ignore plugins when config has typo](https://github.com/kubernetes-sigs/kustomize/issues/4399)
-  - [KRM Exec Function can't locate executable when referencing a base](https://github.com/kubernetes-sigs/kustomize/issues/4347)
-- Once core usability issues are fixed, [deprecate legacy exec and Go plugin support](https://github.com/kubernetes/enhancements/tree/master/keps/sig-cli/2953-kustomize-plugin-graduation)
-- [Catalog KEP](https://github.com/kubernetes/enhancements/tree/master/keps/sig-cli/2906-kustomize-function-catalog)
-
-Secondary priorities:
-
-- [Remove Starlark support](https://github.com/kubernetes-sigs/kustomize/issues/4349)
-- [Composition KEP](https://github.com/kubernetes/enhancements/pull/2300). The implementation is complete in [#4223](https://github.com/kubernetes-sigs/kustomize/pull/4323), but depends on:
-  - [Convert resources and components to be backed by a reusable generator](https://github.com/kubernetes-sigs/kustomize/issues/4402)
-  - [Enable explicitly invoked transformers to use default fieldSpecs](https://github.com/kubernetes-sigs/kustomize/issues/4404)
-  - [Enable built-in generators to be used in the transformers field ](https://github.com/kubernetes-sigs/kustomize/issues/4403)
-
-
-Also very valuable to the project:
-
-- [Improve docs for kyaml libraries](https://github.com/kubernetes-sigs/kustomize/issues/3950), especially by adding examples.
-- [Create a reserved field for plugin runtime information](https://github.com/kubernetes-sigs/kustomize/issues/4405)
-- [Develop new standard process for implementing builtin transformers](https://github.com/kubernetes-sigs/kustomize/issues/4400)

api/builtins/AnnotationsTransformer.go

@@ -27,10 +27,16 @@ func (p *AnnotationsTransformerPlugin) Transform(m resmap.ResMap) error {
 	if len(p.Annotations) == 0 {
 		return nil
 	}
-	return m.ApplyFilter(annotations.Filter{
-		Annotations: p.Annotations,
-		FsSlice:     p.FieldSpecs,
-	})
+	for _, r := range m.Resources() {
+		err := r.ApplyFilter(annotations.Filter{
+			Annotations: p.Annotations,
+			FsSlice:     p.FieldSpecs,
+		})
+		if err != nil {
+			return err
+		}
+	}
+	return nil
 }
 
 func NewAnnotationsTransformerPlugin() resmap.TransformerPlugin {

api/builtins/HelmChartInflationGenerator.go

@@ -267,9 +267,6 @@ func (p *HelmChartInflationGeneratorPlugin) templateCommand() []string {
 	if p.ReleaseName != "" {
 		args = append(args, p.ReleaseName)
 	}
-	if p.Namespace != "" {
-		args = append(args, "--namespace", p.Namespace)
-	}
 	args = append(args, filepath.Join(p.absChartHome(), p.Name))
 	if p.ValuesFile != "" {
 		args = append(args, "--values", p.ValuesFile)
@@ -280,9 +277,6 @@ func (p *HelmChartInflationGeneratorPlugin) templateCommand() []string {
 		// I've tried placing the flag before and after the name argument.
 		args = append(args, "--generate-name")
 	}
-	if p.IncludeCRDs {
-		args = append(args, "--include-crds")
-	}
 	return args
 }
 

api/builtins/ImageTagTransformer.go

@@ -0,0 +1,50 @@
+// Code generated by pluginator on ImageTagTransformer; DO NOT EDIT.
+// pluginator {unknown  1970-01-01T00:00:00Z  }
+
+package builtins
+
+import (
+	"sigs.k8s.io/kustomize/api/filters/imagetag"
+	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/yaml"
+)
+
+// Find matching image declarations and replace
+// the name, tag and/or digest.
+type ImageTagTransformerPlugin struct {
+	ImageTag   types.Image       `json:"imageTag,omitempty" yaml:"imageTag,omitempty"`
+	FieldSpecs []types.FieldSpec `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
+}
+
+func (p *ImageTagTransformerPlugin) Config(
+	_ *resmap.PluginHelpers, c []byte) (err error) {
+	p.ImageTag = types.Image{}
+	p.FieldSpecs = nil
+	return yaml.Unmarshal(c, p)
+}
+
+func (p *ImageTagTransformerPlugin) Transform(m resmap.ResMap) error {
+	for _, r := range m.Resources() {
+		// traverse all fields at first
+		err := r.ApplyFilter(imagetag.LegacyFilter{
+			ImageTag: p.ImageTag,
+		})
+		if err != nil {
+			return err
+		}
+		// then use user specified field specs
+		err = r.ApplyFilter(imagetag.Filter{
+			ImageTag: p.ImageTag,
+			FsSlice:  p.FieldSpecs,
+		})
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func NewImageTagTransformerPlugin() resmap.TransformerPlugin {
+	return &ImageTagTransformerPlugin{}
+}

api/builtins/LabelTransformer.go

@@ -27,10 +27,16 @@ func (p *LabelTransformerPlugin) Transform(m resmap.ResMap) error {
 	if len(p.Labels) == 0 {
 		return nil
 	}
-	return m.ApplyFilter(labels.Filter{
-		Labels:  p.Labels,
-		FsSlice: p.FieldSpecs,
-	})
+	for _, r := range m.Resources() {
+		err := r.ApplyFilter(labels.Filter{
+			Labels:  p.Labels,
+			FsSlice: p.FieldSpecs,
+		})
+		if err != nil {
+			return err
+		}
+	}
+	return nil
 }
 
 func NewLabelTransformerPlugin() resmap.TransformerPlugin {

api/builtins/NamespaceTransformer.go

@@ -30,7 +30,7 @@ func (p *NamespaceTransformerPlugin) Transform(m resmap.ResMap) error {
 		return nil
 	}
 	for _, r := range m.Resources() {
-		if r.IsNilOrEmpty() {
+		if r.IsEmpty() {
 			// Don't mutate empty objects?
 			continue
 		}

api/builtins/PatchJson6902Transformer.go

@@ -12,7 +12,6 @@ import (
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/kio/kioutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -79,23 +78,12 @@ func (p *PatchJson6902TransformerPlugin) Transform(m resmap.ResMap) error {
 		return err
 	}
 	for _, res := range resources {
-		internalAnnotations := kioutil.GetInternalAnnotations(&res.RNode)
-
 		err = res.ApplyFilter(patchjson6902.Filter{
 			Patch: p.JsonOp,
 		})
 		if err != nil {
 			return err
 		}
-
-		annotations := res.GetAnnotations()
-		for key, value := range internalAnnotations {
-			annotations[key] = value
-		}
-		err = res.SetAnnotations(annotations)
-		if err != nil {
-			return err
-		}
 	}
 	return nil
 }

api/builtins/PatchTransformer.go

@@ -12,7 +12,6 @@ import (
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/kio/kioutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -63,10 +62,10 @@ func (p *PatchTransformerPlugin) Config(
 	if errSM == nil {
 		p.loadedPatch = patchSM
 		if p.Options["allowNameChange"] {
-			p.loadedPatch.AllowNameChange()
+			p.loadedPatch.SetAllowNameChange("true")
 		}
 		if p.Options["allowKindChange"] {
-			p.loadedPatch.AllowKindChange()
+			p.loadedPatch.SetAllowKindChange("true")
 		}
 	} else {
 		p.decodedPatch = patchJson
@@ -77,9 +76,10 @@ func (p *PatchTransformerPlugin) Config(
 func (p *PatchTransformerPlugin) Transform(m resmap.ResMap) error {
 	if p.loadedPatch == nil {
 		return p.transformJson6902(m, p.decodedPatch)
+	} else {
+		// The patch was a strategic merge patch
+		return p.transformStrategicMerge(m, p.loadedPatch)
 	}
-	// The patch was a strategic merge patch
-	return p.transformStrategicMerge(m, p.loadedPatch)
 }
 
 // transformStrategicMerge applies the provided strategic merge patch
@@ -112,19 +112,12 @@ func (p *PatchTransformerPlugin) transformJson6902(m resmap.ResMap, patch jsonpa
 	}
 	for _, res := range resources {
 		res.StorePreviousId()
-		internalAnnotations := kioutil.GetInternalAnnotations(&res.RNode)
 		err = res.ApplyFilter(patchjson6902.Filter{
 			Patch: p.Patch,
 		})
 		if err != nil {
 			return err
 		}
-
-		annotations := res.GetAnnotations()
-		for key, value := range internalAnnotations {
-			annotations[key] = value
-		}
-		err = res.SetAnnotations(annotations)
 	}
 	return nil
 }

api/builtins/PrefixSuffixTransformer.go

@@ -0,0 +1,104 @@
+// Code generated by pluginator on PrefixSuffixTransformer; DO NOT EDIT.
+// pluginator {unknown  1970-01-01T00:00:00Z  }
+
+package builtins
+
+import (
+	"errors"
+
+	"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.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
+}
+
+// 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(
+	_ *resmap.PluginHelpers, c []byte) (err error) {
+	p.Prefix = ""
+	p.Suffix = ""
+	p.FieldSpecs = nil
+	err = yaml.Unmarshal(c, p)
+	if err != nil {
+		return
+	}
+	if p.FieldSpecs == nil {
+		return errors.New("fieldSpecs is not expected to be nil")
+	}
+	return
+}
+
+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()) {
+			continue
+		}
+		id := r.OrgId()
+		// current default configuration contains
+		// only one entry: "metadata/name" with no GVK
+		for _, fs := range p.FieldSpecs {
+			// TODO: this is redundant to filter (but needed for now)
+			if !id.IsSelected(&fs.Gvk) {
+				continue
+			}
+			// 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()
+				}
+			}
+			err := r.ApplyFilter(prefixsuffix.Filter{
+				Prefix:    p.Prefix,
+				Suffix:    p.Suffix,
+				FieldSpec: fs,
+			})
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func smellsLikeANameChange(fs *types.FieldSpec) bool {
+	return fs.Path == "metadata/name"
+}
+
+func (p *PrefixSuffixTransformerPlugin) shouldSkip(id resid.ResId) bool {
+	for _, path := range prefixSuffixFieldSpecsToSkip {
+		if id.IsSelected(&path.Gvk) {
+			return true
+		}
+	}
+	return false
+}
+
+func NewPrefixSuffixTransformerPlugin() resmap.TransformerPlugin {
+	return &PrefixSuffixTransformerPlugin{}
+}

api/builtins/ReplacementTransformer.go

@@ -0,0 +1,65 @@
+// Code generated by pluginator on ReplacementTransformer; DO NOT EDIT.
+// pluginator {unknown  1970-01-01T00:00:00Z  }
+
+package builtins
+
+import (
+	"fmt"
+
+	"sigs.k8s.io/kustomize/api/filters/replacement"
+	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/types"
+	kyaml "sigs.k8s.io/kustomize/kyaml/yaml"
+	"sigs.k8s.io/yaml"
+)
+
+// Replace values in targets with values from a source
+type ReplacementTransformerPlugin struct {
+	ReplacementList []types.ReplacementField `json:"replacements,omitempty" yaml:"replacements,omitempty"`
+	Replacements    []types.Replacement      `json:"omitempty" yaml:"omitempty"`
+}
+
+func (p *ReplacementTransformerPlugin) Config(
+	h *resmap.PluginHelpers, c []byte) (err error) {
+	p.ReplacementList = []types.ReplacementField{}
+	if err := yaml.Unmarshal(c, p); err != nil {
+		return err
+	}
+
+	for _, r := range p.ReplacementList {
+		if r.Path != "" && (r.Source != nil || len(r.Targets) != 0) {
+			return fmt.Errorf("cannot specify both path and inline replacement")
+		}
+		if r.Path != "" {
+			// load the replacement from the path
+			content, err := h.Loader().Load(r.Path)
+			if err != nil {
+				return err
+			}
+			repl := types.Replacement{}
+			if err := yaml.Unmarshal(content, &repl); err != nil {
+				return err
+			}
+			p.Replacements = append(p.Replacements, repl)
+		} else {
+			// replacement information is already loaded
+			p.Replacements = append(p.Replacements, r.Replacement)
+		}
+	}
+	return nil
+}
+
+func (p *ReplacementTransformerPlugin) Transform(m resmap.ResMap) (err error) {
+	var nodes []*kyaml.RNode
+	for _, r := range m.Resources() {
+		nodes = append(nodes, r.Node())
+	}
+	_, err = replacement.Filter{
+		Replacements: p.Replacements,
+	}.Filter(nodes)
+	return err
+}
+
+func NewReplacementTransformerPlugin() resmap.TransformerPlugin {
+	return &ReplacementTransformerPlugin{}
+}

api/builtins/ReplicaCountTransformer.go

@@ -7,9 +7,9 @@ import (
 	"fmt"
 
 	"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"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 	"sigs.k8s.io/yaml"
 )
 

api/builtins/builtins.go

@@ -1,51 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Deprecated: Package api/builtins will not be available in API v1.
-package builtins
-
-import (
-	internal "sigs.k8s.io/kustomize/api/internal/builtins"
-)
-
-type (
-	AnnotationsTransformerPlugin         = internal.AnnotationsTransformerPlugin
-	ConfigMapGeneratorPlugin             = internal.ConfigMapGeneratorPlugin
-	HashTransformerPlugin                = internal.HashTransformerPlugin
-	HelmChartInflationGeneratorPlugin    = internal.HelmChartInflationGeneratorPlugin
-	IAMPolicyGeneratorPlugin             = internal.IAMPolicyGeneratorPlugin
-	ImageTagTransformerPlugin            = internal.ImageTagTransformerPlugin
-	LabelTransformerPlugin               = internal.LabelTransformerPlugin
-	LegacyOrderTransformerPlugin         = internal.LegacyOrderTransformerPlugin
-	NamespaceTransformerPlugin           = internal.NamespaceTransformerPlugin
-	PatchJson6902TransformerPlugin       = internal.PatchJson6902TransformerPlugin
-	PatchStrategicMergeTransformerPlugin = internal.PatchStrategicMergeTransformerPlugin
-	PatchTransformerPlugin               = internal.PatchTransformerPlugin
-	PrefixTransformerPlugin              = internal.PrefixTransformerPlugin
-	SuffixTransformerPlugin              = internal.SuffixTransformerPlugin
-	ReplacementTransformerPlugin         = internal.ReplacementTransformerPlugin
-	ReplicaCountTransformerPlugin        = internal.ReplicaCountTransformerPlugin
-	SecretGeneratorPlugin                = internal.SecretGeneratorPlugin
-	ValueAddTransformerPlugin            = internal.ValueAddTransformerPlugin
-)
-
-var (
-	NewAnnotationsTransformerPlugin         = internal.NewAnnotationsTransformerPlugin
-	NewConfigMapGeneratorPlugin             = internal.NewConfigMapGeneratorPlugin
-	NewHashTransformerPlugin                = internal.NewHashTransformerPlugin
-	NewHelmChartInflationGeneratorPlugin    = internal.NewHelmChartInflationGeneratorPlugin
-	NewIAMPolicyGeneratorPlugin             = internal.NewIAMPolicyGeneratorPlugin
-	NewImageTagTransformerPlugin            = internal.NewImageTagTransformerPlugin
-	NewLabelTransformerPlugin               = internal.NewLabelTransformerPlugin
-	NewLegacyOrderTransformerPlugin         = internal.NewLegacyOrderTransformerPlugin
-	NewNamespaceTransformerPlugin           = internal.NewNamespaceTransformerPlugin
-	NewPatchJson6902TransformerPlugin       = internal.NewPatchJson6902TransformerPlugin
-	NewPatchStrategicMergeTransformerPlugin = internal.NewPatchStrategicMergeTransformerPlugin
-	NewPatchTransformerPlugin               = internal.NewPatchTransformerPlugin
-	NewPrefixTransformerPlugin              = internal.NewPrefixTransformerPlugin
-	NewSuffixTransformerPlugin              = internal.NewSuffixTransformerPlugin
-	NewReplacementTransformerPlugin         = internal.NewReplacementTransformerPlugin
-	NewReplicaCountTransformerPlugin        = internal.NewReplicaCountTransformerPlugin
-	NewSecretGeneratorPlugin                = internal.NewSecretGeneratorPlugin
-	NewValueAddTransformerPlugin            = internal.NewValueAddTransformerPlugin
-)

api/filesys/confirmeddir_test.go

@@ -1,15 +1,14 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-//go:build !windows
-// +build !windows
-
-package filesys
+package filesys_test
 
 import (
 	"os"
 	"path/filepath"
 	"testing"
+
+	. "sigs.k8s.io/kustomize/api/filesys"
 )
 
 func TestJoin(t *testing.T) {

api/filesys/filesys.go

@@ -1,61 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package filesys provides a file system abstraction,
-// a subset of that provided by golang.org/pkg/os,
-// with an on-disk and in-memory representation.
-//
-// Deprecated: use sigs.k8s.io/kustomize/kyaml/filesys instead.
-package filesys
-
-import "sigs.k8s.io/kustomize/kyaml/filesys"
-
-const (
-	// Separator is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.Separator.
-	Separator = filesys.Separator
-	// SelfDir is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.SelfDir.
-	SelfDir = filesys.SelfDir
-	// ParentDir is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.ParentDir.
-	ParentDir = filesys.ParentDir
-)
-
-type (
-	// FileSystem is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.FileSystem.
-	FileSystem = filesys.FileSystem
-	// FileSystemOrOnDisk is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.FileSystemOrOnDisk.
-	FileSystemOrOnDisk = filesys.FileSystemOrOnDisk
-	// ConfirmedDir is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.ConfirmedDir.
-	ConfirmedDir = filesys.ConfirmedDir
-)
-
-// MakeEmptyDirInMemory is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.MakeEmptyDirInMemory.
-func MakeEmptyDirInMemory() FileSystem { return filesys.MakeEmptyDirInMemory() }
-
-// MakeFsInMemory is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.MakeFsInMemory.
-func MakeFsInMemory() FileSystem { return filesys.MakeFsInMemory() }
-
-// MakeFsOnDisk is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.MakeFsOnDisk.
-func MakeFsOnDisk() FileSystem { return filesys.MakeFsOnDisk() }
-
-// NewTmpConfirmedDir is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.NewTmpConfirmedDir.
-func NewTmpConfirmedDir() (filesys.ConfirmedDir, error) { return filesys.NewTmpConfirmedDir() }
-
-// RootedPath is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.RootedPath.
-func RootedPath(elem ...string) string { return filesys.RootedPath(elem...) }
-
-// StripTrailingSeps is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.StripTrailingSeps.
-func StripTrailingSeps(s string) string { return filesys.StripTrailingSeps(s) }
-
-// StripLeadingSeps is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.StripLeadingSeps.
-func StripLeadingSeps(s string) string { return filesys.StripLeadingSeps(s) }
-
-// PathSplit is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.PathSplit.
-func PathSplit(incoming string) []string { return filesys.PathSplit(incoming) }
-
-// PathJoin is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.PathJoin.
-func PathJoin(incoming []string) string { return filesys.PathJoin(incoming) }
-
-// InsertPathPart is deprecated, use sigs.k8s.io/kustomize/kyaml/filesys.InsertPathPart.
-func InsertPathPart(path string, pos int, part string) string {
-	return filesys.InsertPathPart(path, pos, part)
-}

api/filesys/filesystem.go

@@ -0,0 +1,50 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+// Package filesys provides a file system abstraction layer.
+package filesys
+
+import (
+	"path/filepath"
+)
+
+const (
+	Separator = string(filepath.Separator)
+	SelfDir   = "."
+	ParentDir = ".."
+)
+
+// FileSystem groups basic os filesystem methods.
+// It's supposed be functional subset of https://golang.org/pkg/os
+type FileSystem interface {
+	// Create a file.
+	Create(path string) (File, error)
+	// MkDir makes a directory.
+	Mkdir(path string) error
+	// MkDirAll makes a directory path, creating intervening directories.
+	MkdirAll(path string) error
+	// RemoveAll removes path and any children it contains.
+	RemoveAll(path string) error
+	// Open opens the named file for reading.
+	Open(path string) (File, error)
+	// IsDir returns true if the path is a directory.
+	IsDir(path string) bool
+	// CleanedAbs converts the given path into a
+	// directory and a file name, where the directory
+	// is represented as a ConfirmedDir and all that implies.
+	// If the entire path is a directory, the file component
+	// is an empty string.
+	CleanedAbs(path string) (ConfirmedDir, string, error)
+	// Exists is true if the path exists in the file system.
+	Exists(path string) bool
+	// Glob returns the list of matching files,
+	// emulating https://golang.org/pkg/path/filepath/#Glob
+	Glob(pattern string) ([]string, error)
+	// ReadFile returns the contents of the file at the given path.
+	ReadFile(path string) ([]byte, error)
+	// WriteFile writes the data to a file at the given path,
+	// overwriting anything that's already there.
+	WriteFile(path string, data []byte) error
+	// Walk walks the file system with the given WalkFunc.
+	Walk(path string, walkFn filepath.WalkFunc) error
+}

api/filesys/fsnode.go

@@ -123,11 +123,11 @@ func (n *fsNode) addFile(name string, c []byte) (result *fsNode, err error) {
 		if result.offset != nil {
 			return nil, fmt.Errorf("cannot add already opened file '%s'", n.Path())
 		}
-		result.content = append(result.content[:0], c...)
+		result.content = c
 		return result, nil
 	}
 	result = &fsNode{
-		content: append([]byte(nil), c...),
+		content: c,
 		parent:  parent,
 	}
 	parent.dir[fileName] = result
@@ -236,7 +236,7 @@ func (n *fsNode) CleanedAbs(path string) (ConfirmedDir, string, error) {
 		return "", "", errors.Wrap(err, "unable to clean")
 	}
 	if node == nil {
-		return "", "", notExistError(path)
+		return "", "", fmt.Errorf("'%s' doesn't exist", path)
 	}
 	if node.isNodeADir() {
 		return ConfirmedDir(node.Path()), "", nil
@@ -309,8 +309,7 @@ func (n *fsNode) RemoveAll(path string) error {
 		return err
 	}
 	if result == nil {
-		// If the path doesn't exist, no need to remove anything.
-		return nil
+		return fmt.Errorf("cannot find '%s' to remove it", path)
 	}
 	return result.Remove()
 }
@@ -350,32 +349,6 @@ func (n *fsNode) IsDir(path string) bool {
 	return result.isNodeADir()
 }
 
-// ReadDir implements FileSystem.
-func (n *fsNode) ReadDir(path string) ([]string, error) {
-	if !n.Exists(path) {
-		return nil, notExistError(path)
-	}
-	if !n.IsDir(path) {
-		return nil, fmt.Errorf("%s is not a directory", path)
-	}
-
-	dir, err := n.Find(path)
-	if err != nil {
-		return nil, err
-	}
-	if dir == nil {
-		return nil, fmt.Errorf("could not find directory %s", path)
-	}
-
-	keys := make([]string, len(dir.dir))
-	i := 0
-	for k := range dir.dir {
-		keys[i] = k
-		i++
-	}
-	return keys, nil
-}
-
 // Size returns the size of the node.
 func (n *fsNode) Size() int64 {
 	if n.isNodeADir() {
@@ -402,7 +375,7 @@ func (n *fsNode) Open(path string) (File, error) {
 		return nil, err
 	}
 	if result == nil {
-		return nil, notExistError(path)
+		return nil, fmt.Errorf("cannot find '%s' to open it", path)
 	}
 	if result.offset != nil {
 		return nil, fmt.Errorf("cannot open previously opened file '%s'", path)
@@ -427,7 +400,7 @@ func (n *fsNode) ReadFile(path string) (c []byte, err error) {
 		return nil, err
 	}
 	if result == nil {
-		return nil, notExistError(path)
+		return nil, fmt.Errorf("cannot find '%s' to read it", path)
 	}
 	if result.isNodeADir() {
 		return nil, fmt.Errorf("cannot read content from non-file '%s'", n.Path())
@@ -494,7 +467,7 @@ func (n *fsNode) Walk(path string, walkFn filepath.WalkFunc) error {
 		return err
 	}
 	if result == nil {
-		return notExistError(path)
+		return fmt.Errorf("cannot find '%s' to walk it", path)
 	}
 	return result.WalkMe(walkFn)
 }
@@ -587,7 +560,7 @@ func isLegalFileNameForCreation(n string) bool {
 func (n *fsNode) RegExpGlob(pattern string) ([]string, error) {
 	var result []string
 	var expression = regexp.MustCompile(pattern)
-	err := n.WalkMe(func(path string, info os.FileInfo, err error) error {
+	n.WalkMe(func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
@@ -598,9 +571,6 @@ func (n *fsNode) RegExpGlob(pattern string) ([]string, error) {
 		}
 		return nil
 	})
-	if err != nil {
-		return nil, err
-	}
 	sort.Strings(result)
 	return result, nil
 }
@@ -612,8 +582,7 @@ func (n *fsNode) RegExpGlob(pattern string) ([]string, error) {
 // This is how /bin/ls behaves.
 func (n *fsNode) Glob(pattern string) ([]string, error) {
 	var result []string
-	var allFiles []string
-	err := n.WalkMe(func(path string, info os.FileInfo, err error) error {
+	n.WalkMe(func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
@@ -623,26 +592,11 @@ func (n *fsNode) Glob(pattern string) ([]string, error) {
 				return err
 			}
 			if match {
-				allFiles = append(allFiles, path)
+				result = append(result, path)
 			}
 		}
 		return nil
 	})
-	if err != nil {
-		return nil, err
-	}
-	if IsHiddenFilePath(pattern) {
-		result = allFiles
-	} else {
-		result = RemoveHiddenFiles(allFiles)
-	}
 	sort.Strings(result)
 	return result, nil
 }
-
-// notExistError indicates that a file or directory does not exist.
-// Unwrapping returns os.ErrNotExist so errors.Is(err, os.ErrNotExist) works correctly.
-type notExistError string
-
-func (err notExistError) Error() string { return fmt.Sprintf("'%s' doesn't exist", string(err)) }
-func (err notExistError) Unwrap() error { return os.ErrNotExist }

api/filesys/fsnode_test.go

@@ -1,9 +1,6 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-//go:build !windows
-// +build !windows
-
 package filesys
 
 import (
@@ -158,13 +155,9 @@ func runBasicOperations(
 		if string(stuff) != both {
 			t.Fatalf("%s; unexpected content '%s', expected '%s'", c.what, stuff, both)
 		}
-
-		content := []byte(shortContent)
-		if err := fSys.WriteFile(c.path, content); err != nil {
+		if err := fSys.WriteFile(c.path, []byte(shortContent)); err != nil {
 			t.Fatalf("%s; unexpected error: %v", c.what, err)
 		}
-		// This ensures that modifying the original slice does not change the contents of the file.
-		content[0] = '@'
 		stuff, err = fSys.ReadFile(c.path)
 		if err != nil {
 			t.Fatalf("%s; unexpected error: %v", c.what, err)
@@ -464,13 +457,6 @@ var bunchOfFiles = []struct {
 	{
 		path: filepath.Join("b", "d", "a", "c", "u"),
 	},
-	{
-		path: filepath.Join("b", "d", ".hidden_file"),
-	},
-	{
-		path:     filepath.Join("b", "d", ".hidden_dir"),
-		addAsDir: true,
-	},
 }
 
 func makeLoadedFileTree(t *testing.T) *fsNode {
@@ -587,7 +573,6 @@ func TestExists(t *testing.T) {
 func TestRegExpGlob(t *testing.T) {
 	n := makeLoadedFileTree(t)
 	expected := []string{
-		filepath.Join("b", "d", ".hidden_file"),
 		filepath.Join("b", "d", "a", "c", "i", "beans"),
 		filepath.Join("b", "d", "a", "c", "m"),
 		filepath.Join("b", "d", "a", "c", "u"),
@@ -607,36 +592,16 @@ func TestRegExpGlob(t *testing.T) {
 
 func TestGlob(t *testing.T) {
 	n := makeLoadedFileTree(t)
-
-	tests := map[string]struct {
-		globPattern   string
-		expectedFiles []string
-	}{
-		"VisibleFiles": {
-			globPattern: "b/d/*",
-			expectedFiles: []string{
-				filepath.Join("b", "d", "x"),
-				filepath.Join("b", "d", "y"),
-				filepath.Join("b", "d", "z"),
-			},
-		},
-		"HiddenFiles": {
-			globPattern: "b/d/.*",
-			expectedFiles: []string{
-				filepath.Join("b", "d", ".hidden_file"),
-			},
-		},
+	expected := []string{
+		filepath.Join("b", "d", "x"),
+		filepath.Join("b", "d", "y"),
+		filepath.Join("b", "d", "z"),
 	}
-
-	for test, c := range tests {
-		t.Run(test, func(t *testing.T) {
-			paths, err := n.Glob(c.globPattern)
-			if err != nil {
-				t.Fatalf("glob error: %v", err)
-			}
-			assertEqualStringSlices(t, c.expectedFiles, paths, "glob test")
-		})
+	paths, err := n.Glob("b/d/*")
+	if err != nil {
+		t.Fatalf("glob error: %v", err)
 	}
+	assertEqualStringSlices(t, expected, paths, "glob test")
 }
 
 func assertEqualStringSlices(t *testing.T, expected, actual []string, message string) {

api/filesys/fsondisk.go

@@ -57,7 +57,7 @@ func (x fsOnDisk) CleanedAbs(
 	deLinked, err := filepath.EvalSymlinks(absRoot)
 	if err != nil {
 		return "", "", fmt.Errorf(
-			"evalsymlink failure on '%s' : %w", path, err)
+			"evalsymlink failure on '%s' : %v", path, err)
 	}
 	if x.IsDir(deLinked) {
 		return ConfirmedDir(deLinked), "", nil
@@ -88,17 +88,7 @@ func (fsOnDisk) Exists(name string) bool {
 
 // Glob returns the list of matching files
 func (fsOnDisk) Glob(pattern string) ([]string, error) {
-	var result []string
-	allFilePaths, err := filepath.Glob(pattern)
-	if err != nil {
-		return nil, err
-	}
-	if IsHiddenFilePath(pattern) {
-		result = allFilePaths
-	} else {
-		result = RemoveHiddenFiles(allFilePaths)
-	}
-	return result, nil
+	return filepath.Glob(pattern)
 }
 
 // IsDir delegates to os.Stat and FileInfo.IsDir
@@ -110,19 +100,6 @@ func (fsOnDisk) IsDir(name string) bool {
 	return info.IsDir()
 }
 
-// ReadDir delegates to os.ReadDir
-func (fsOnDisk) ReadDir(name string) ([]string, error) {
-	dirEntries, err := os.ReadDir(name)
-	if err != nil {
-		return nil, err
-	}
-	result := make([]string, len(dirEntries))
-	for i := range dirEntries {
-		result[i] = dirEntries[i].Name()
-	}
-	return result, nil
-}
-
 // ReadFile delegates to ioutil.ReadFile.
 func (fsOnDisk) ReadFile(name string) ([]byte, error) { return ioutil.ReadFile(name) }
 

api/filesys/fsondisk_test.go

@@ -0,0 +1,165 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package filesys_test
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"reflect"
+	"testing"
+
+	. "sigs.k8s.io/kustomize/api/filesys"
+)
+
+func makeTestDir(t *testing.T) (FileSystem, string) {
+	fSys := MakeFsOnDisk()
+	td, err := ioutil.TempDir("", "kustomize_testing_dir")
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	testDir, err := filepath.EvalSymlinks(td)
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	if !fSys.Exists(testDir) {
+		t.Fatalf("expected existence")
+	}
+	if !fSys.IsDir(testDir) {
+		t.Fatalf("expected directory")
+	}
+	return fSys, testDir
+}
+
+func TestCleanedAbs_1(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	d, f, err := fSys.CleanedAbs("")
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d.String() != wd {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+}
+
+func TestCleanedAbs_2(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	d, f, err := fSys.CleanedAbs("/")
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d != "/" {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+}
+
+func TestCleanedAbs_3(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	err := fSys.WriteFile(
+		filepath.Join(testDir, "foo"), []byte(`foo`))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+
+	d, f, err := fSys.CleanedAbs(filepath.Join(testDir, "foo"))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d.String() != testDir {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "foo" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+}
+
+func TestCleanedAbs_4(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	err := fSys.MkdirAll(filepath.Join(testDir, "d1", "d2"))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	err = fSys.WriteFile(
+		filepath.Join(testDir, "d1", "d2", "bar"),
+		[]byte(`bar`))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+
+	d, f, err := fSys.CleanedAbs(
+		filepath.Join(testDir, "d1", "d2"))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d.String() != filepath.Join(testDir, "d1", "d2") {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+
+	d, f, err = fSys.CleanedAbs(
+		filepath.Join(testDir, "d1", "d2", "bar"))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d.String() != filepath.Join(testDir, "d1", "d2") {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "bar" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+}
+
+func TestReadFilesRealFS(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	err := fSys.WriteFile(path.Join(testDir, "foo"), []byte(`foo`))
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	if !fSys.Exists(path.Join(testDir, "foo")) {
+		t.Fatalf("expected foo")
+	}
+	if fSys.IsDir(path.Join(testDir, "foo")) {
+		t.Fatalf("expected foo not to be a directory")
+	}
+
+	err = fSys.WriteFile(path.Join(testDir, "bar"), []byte(`bar`))
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+
+	files, err := fSys.Glob(path.Join("testDir", "*"))
+	expected := []string{
+		path.Join(testDir, "bar"),
+		path.Join(testDir, "foo"),
+	}
+	if err != nil {
+		t.Fatalf("expected no error")
+	}
+	if reflect.DeepEqual(files, expected) {
+		t.Fatalf("incorrect files found by glob: %v", files)
+	}
+}

api/filesys/util.go

@@ -0,0 +1,125 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package filesys
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// RootedPath returns a rooted path, e.g. "/foo/bar" as
+// opposed to "foo/bar".
+func RootedPath(elem ...string) string {
+	return Separator + filepath.Join(elem...)
+}
+
+// StripTrailingSeps trims trailing filepath separators from input.
+func StripTrailingSeps(s string) string {
+	k := len(s)
+	for k > 0 && s[k-1] == filepath.Separator {
+		k--
+	}
+	return s[:k]
+}
+
+// StripLeadingSeps trims leading filepath separators from input.
+func StripLeadingSeps(s string) string {
+	k := 0
+	for k < len(s) && s[k] == filepath.Separator {
+		k++
+	}
+	return s[k:]
+}
+
+// PathSplit converts a file path to a slice of string.
+// If the path is absolute (if the path has a leading slash),
+// then the first entry in the result is an empty string.
+// Desired:  path == PathJoin(PathSplit(path))
+func PathSplit(incoming string) []string {
+	if incoming == "" {
+		return []string{}
+	}
+	dir, path := filepath.Split(incoming)
+	if dir == string(os.PathSeparator) {
+		if path == "" {
+			return []string{""}
+		}
+		return []string{"", path}
+	}
+	dir = strings.TrimSuffix(dir, string(os.PathSeparator))
+	if dir == "" {
+		return []string{path}
+	}
+	return append(PathSplit(dir), path)
+}
+
+// PathJoin converts a slice of string to a file path.
+// If the first entry is an empty string, then the returned
+// path is absolute (it has a leading slash).
+// Desired:  path == PathJoin(PathSplit(path))
+func PathJoin(incoming []string) string {
+	if len(incoming) == 0 {
+		return ""
+	}
+	if incoming[0] == "" {
+		return string(os.PathSeparator) + filepath.Join(incoming[1:]...)
+	}
+	return filepath.Join(incoming...)
+}
+
+// InsertPathPart inserts 'part' at position 'pos' in the given filepath.
+// The first position is 0.
+//
+// E.g. if part == 'PEACH'
+//
+//                  OLD : NEW                    : POS
+//      --------------------------------------------------------
+//              {empty} : PEACH                  : irrelevant
+//                    / : /PEACH                 : irrelevant
+//                  pie : PEACH/pie              : 0 (or negative)
+//                 /pie : /PEACH/pie             : 0 (or negative)
+//                  raw : raw/PEACH              : 1 (or larger)
+//                 /raw : /raw/PEACH             : 1 (or larger)
+//      a/nice/warm/pie : a/nice/warm/PEACH/pie  : 3
+//     /a/nice/warm/pie : /a/nice/warm/PEACH/pie : 3
+//
+// * An empty part results in no change.
+//
+// * Absolute paths get their leading '/' stripped, treated like
+//   relative paths, and the leading '/' is re-added on output.
+//   The meaning of pos is intentionally the same in either absolute or
+//   relative paths; if it weren't, this function could convert absolute
+//   paths to relative paths, which is not desirable.
+//
+// * For robustness (liberal input, conservative output) Pos values that
+//   that are too small (large) to index the split filepath result in a
+//   prefix (postfix) rather than an error.  Use extreme position values
+//   to assure a prefix or postfix (e.g. 0 will always prefix, and
+//   9999 will presumably always postfix).
+func InsertPathPart(path string, pos int, part string) string {
+	if part == "" {
+		return path
+	}
+	parts := PathSplit(path)
+	if pos < 0 {
+		pos = 0
+	} else if pos > len(parts) {
+		pos = len(parts)
+	}
+	if len(parts) > 0 && parts[0] == "" && pos < len(parts) {
+		// An empty string at 0 indicates an absolute path, and means
+		// we must increment pos.  This change means that a position
+		// specification has the same meaning in relative and absolute paths.
+		// E.g. in either the path 'a/b/c' or the path '/a/b/c',
+		// 'a' is at 0, 'b' is at 1 and 'c' is at 2, and inserting at
+		// zero means a new first field _without_ changing an absolute
+		// path to a relative path.
+		pos++
+	}
+	result := make([]string, len(parts)+1)
+	copy(result, parts[0:pos])
+	result[pos] = part
+	return PathJoin(append(result, parts[pos:]...))
+}

api/filesys/util_test.go

@@ -0,0 +1,374 @@
+package filesys_test
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	. "sigs.k8s.io/kustomize/api/filesys"
+)
+
+// Confirm behavior of filepath.Match
+func TestFilePathMatch(t *testing.T) {
+	cases := []struct {
+		pattern  string
+		path     string
+		expected bool
+	}{
+		{
+			pattern:  "*e*",
+			path:     "hey",
+			expected: true,
+		},
+		{
+			pattern:  "*e*",
+			path:     "hay",
+			expected: false,
+		},
+		{
+			pattern:  "*e*",
+			path:     filepath.Join("h", "e", "y"),
+			expected: false,
+		},
+		{
+			pattern:  "*/e/*",
+			path:     filepath.Join("h", "e", "y"),
+			expected: true,
+		},
+		{
+			pattern:  "h/e/*",
+			path:     filepath.Join("h", "e", "y"),
+			expected: true,
+		},
+		{
+			pattern:  "*/e/y",
+			path:     filepath.Join("h", "e", "y"),
+			expected: true,
+		},
+		{
+			pattern:  "*/*/*",
+			path:     filepath.Join("h", "e", "y"),
+			expected: true,
+		},
+		{
+			pattern:  "*/*/*",
+			path:     filepath.Join("h", "e", "y", "there"),
+			expected: false,
+		},
+		{
+			pattern:  "*/*/*/t*e",
+			path:     filepath.Join("h", "e", "y", "there"),
+			expected: true,
+		},
+	}
+	for _, item := range cases {
+		match, err := filepath.Match(item.pattern, item.path)
+		if err != nil {
+			t.Fatalf("unexpected err: %v", err)
+		}
+		if match != item.expected {
+			t.Fatalf("'%s' '%s' %v\n", item.pattern, item.path, match)
+		}
+	}
+}
+
+// Confirm behavior of filepath.Split
+func TestFilePathSplit(t *testing.T) {
+	cases := []struct {
+		full string
+		dir  string
+		file string
+	}{
+		{
+			full: "",
+			dir:  "",
+			file: "",
+		},
+		{
+			full: SelfDir,
+			dir:  "",
+			file: SelfDir,
+		},
+		{
+			full: "rabbit.jpg",
+			dir:  "",
+			file: "rabbit.jpg",
+		},
+		{
+			full: "/",
+			dir:  "/",
+			file: "",
+		},
+		{
+			full: "/beans",
+			dir:  "/",
+			file: "beans",
+		},
+		{
+			full: "/home/foo/bar",
+			dir:  "/home/foo/",
+			file: "bar",
+		},
+		{
+			full: "/usr/local/",
+			dir:  "/usr/local/",
+			file: "",
+		},
+		{
+			full: "/usr//local//go",
+			dir:  "/usr//local//",
+			file: "go",
+		},
+	}
+	for _, p := range cases {
+		dir, file := filepath.Split(p.full)
+		if dir != p.dir || file != p.file {
+			t.Fatalf(
+				"in '%s',\ngot dir='%s' (expected '%s'),\n got file='%s' (expected %s).",
+				p.full, dir, p.dir, file, p.file)
+		}
+	}
+}
+
+func TestPathSplitAndJoin(t *testing.T) {
+	cases := map[string]struct {
+		original string
+		expected []string
+	}{
+		"Empty": {
+			original: "",
+			expected: []string{},
+		},
+		"One": {
+			original: "hello",
+			expected: []string{"hello"},
+		},
+		"Two": {
+			original: "hello/there",
+			expected: []string{"hello", "there"},
+		},
+		"Three": {
+			original: "hello/my/friend",
+			expected: []string{"hello", "my", "friend"},
+		},
+	}
+	for n, c := range cases {
+		f := func(t *testing.T, original string, expected []string) {
+			actual := PathSplit(original)
+			if len(actual) != len(expected) {
+				t.Fatalf(
+					"expected len %d, got len %d",
+					len(expected), len(actual))
+			}
+			for i := range expected {
+				if expected[i] != actual[i] {
+					t.Fatalf(
+						"at i=%d, expected '%s', got '%s'",
+						i, expected[i], actual[i])
+				}
+			}
+			joined := PathJoin(actual)
+			if joined != original {
+				t.Fatalf(
+					"when rejoining, expected '%s', got '%s'",
+					original, joined)
+			}
+		}
+		t.Run("relative"+n, func(t *testing.T) {
+			f(t, c.original, c.expected)
+		})
+		t.Run("absolute"+n, func(t *testing.T) {
+			f(t,
+				string(os.PathSeparator)+c.original,
+				append([]string{""}, c.expected...))
+		})
+	}
+}
+
+func TestInsertPathPart(t *testing.T) {
+	cases := map[string]struct {
+		original string
+		pos      int
+		part     string
+		expected string
+	}{
+		"rootOne": {
+			original: "/",
+			pos:      0,
+			part:     "___",
+			expected: "/___",
+		},
+		"rootTwo": {
+			original: "/",
+			pos:      444,
+			part:     "___",
+			expected: "/___",
+		},
+		"rootedFirst": {
+			original: "/apple",
+			pos:      0,
+			part:     "___",
+			expected: "/___/apple",
+		},
+		"rootedSecond": {
+			original: "/apple",
+			pos:      444,
+			part:     "___",
+			expected: "/apple/___",
+		},
+		"rootedThird": {
+			original: "/apple/banana",
+			pos:      444,
+			part:     "___",
+			expected: "/apple/banana/___",
+		},
+		"emptyLow": {
+			original: "",
+			pos:      -3,
+			part:     "___",
+			expected: "___",
+		},
+		"emptyHigh": {
+			original: "",
+			pos:      444,
+			part:     "___",
+			expected: "___",
+		},
+		"peachPie": {
+			original: "a/nice/warm/pie",
+			pos:      3,
+			part:     "PEACH",
+			expected: "a/nice/warm/PEACH/pie",
+		},
+		"rootedPeachPie": {
+			original: "/a/nice/warm/pie",
+			pos:      3,
+			part:     "PEACH",
+			expected: "/a/nice/warm/PEACH/pie",
+		},
+		"longStart": {
+			original: "a/b/c/d/e/f",
+			pos:      0,
+			part:     "___",
+			expected: "___/a/b/c/d/e/f",
+		},
+		"rootedLongStart": {
+			original: "/a/b/c/d/e/f",
+			pos:      0,
+			part:     "___",
+			expected: "/___/a/b/c/d/e/f",
+		},
+		"longMiddle": {
+			original: "a/b/c/d/e/f",
+			pos:      3,
+			part:     "___",
+			expected: "a/b/c/___/d/e/f",
+		},
+		"rootedLongMiddle": {
+			original: "/a/b/c/d/e/f",
+			pos:      3,
+			part:     "___",
+			expected: "/a/b/c/___/d/e/f",
+		},
+		"longEnd": {
+			original: "a/b/c/d/e/f",
+			pos:      444,
+			part:     "___",
+			expected: "a/b/c/d/e/f/___",
+		},
+		"rootedLongEnd": {
+			original: "/a/b/c/d/e/f",
+			pos:      444,
+			part:     "___",
+			expected: "/a/b/c/d/e/f/___",
+		},
+	}
+	for n, c := range cases {
+		t.Run(n, func(t *testing.T) {
+			actual := InsertPathPart(c.original, c.pos, c.part)
+			if actual != c.expected {
+				t.Fatalf("expected '%s', got '%s'", c.expected, actual)
+			}
+		})
+	}
+}
+
+func TestStripTrailingSeps(t *testing.T) {
+	cases := []struct {
+		full string
+		rem  string
+	}{
+		{
+			full: "foo",
+			rem:  "foo",
+		},
+		{
+			full: "",
+			rem:  "",
+		},
+		{
+			full: "foo/",
+			rem:  "foo",
+		},
+		{
+			full: "foo///bar///",
+			rem:  "foo///bar",
+		},
+		{
+			full: "/////",
+			rem:  "",
+		},
+		{
+			full: "/",
+			rem:  "",
+		},
+	}
+	for _, p := range cases {
+		dir := StripTrailingSeps(p.full)
+		if dir != p.rem {
+			t.Fatalf(
+				"in '%s', got dir='%s' (expected '%s')",
+				p.full, dir, p.rem)
+		}
+	}
+}
+
+func TestStripLeadingSeps(t *testing.T) {
+	cases := []struct {
+		full string
+		rem  string
+	}{
+		{
+			full: "foo",
+			rem:  "foo",
+		},
+		{
+			full: "",
+			rem:  "",
+		},
+		{
+			full: "/foo",
+			rem:  "foo",
+		},
+		{
+			full: "///foo///bar///",
+			rem:  "foo///bar///",
+		},
+		{
+			full: "/////",
+			rem:  "",
+		},
+		{
+			full: "/",
+			rem:  "",
+		},
+	}
+	for _, p := range cases {
+		dir := StripLeadingSeps(p.full)
+		if dir != p.rem {
+			t.Fatalf(
+				"in '%s', got dir='%s' (expected '%s')",
+				p.full, dir, p.rem)
+		}
+	}
+}

api/filters/annotations/annotations.go

@@ -19,17 +19,9 @@ type Filter struct {
 
 	// FsSlice contains the FieldSpecs to locate the namespace field
 	FsSlice types.FsSlice
-
-	trackableSetter filtersutil.TrackableSetter
 }
 
 var _ kio.Filter = Filter{}
-var _ kio.TrackableFilter = &Filter{}
-
-// WithMutationTracker registers a callback which will be invoked each time a field is mutated
-func (f *Filter) WithMutationTracker(callback func(key, value, tag string, node *yaml.RNode)) {
-	f.trackableSetter.WithMutationTracker(callback)
-}
 
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	keys := yaml.SortedMapKeys(f.Annotations)
@@ -38,7 +30,7 @@ func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 			for _, k := range keys {
 				if err := node.PipeE(fsslice.Filter{
 					FsSlice: f.FsSlice,
-					SetValue: f.trackableSetter.SetEntry(
+					SetValue: filtersutil.SetEntry(
 						k, f.Annotations[k], yaml.NodeTagString),
 					CreateKind: yaml.MappingNode, // Annotations are MappingNodes.
 					CreateTag:  yaml.NodeTagMap,

api/filters/annotations/annotations_test.go

@@ -11,20 +11,16 @@ import (
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
 	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 var annosFs = builtinconfig.MakeDefaultConfig().CommonAnnotations
 
 func TestAnnotations_Filter(t *testing.T) {
-	mutationTrackStub := filtertest_test.MutationTrackerStub{}
 	testCases := map[string]struct {
-		input                string
-		expectedOutput       string
-		filter               Filter
-		fsslice              types.FsSlice
-		setEntryCallback     func(key, value, tag string, node *yaml.RNode)
-		expectedSetEntryArgs []filtertest_test.SetValueArg
+		input          string
+		expectedOutput string
+		filter         Filter
+		fsslice        types.FsSlice
 	}{
 		"add": {
 			input: `
@@ -214,86 +210,17 @@ metadata:
 				"b": "b1",
 			}},
 		},
-
-		// test usage of SetEntryCallback
-		"set_entry_callback": {
-			input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-`,
-			expectedOutput: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-  annotations:
-    a: a1
-    b: b1
-spec:
-  template:
-    metadata:
-      annotations:
-        a: a1
-        b: b1
-`,
-			filter: Filter{
-				Annotations: annoMap{
-					"a": "a1",
-					"b": "b1",
-				},
-			},
-			setEntryCallback: mutationTrackStub.MutationTracker,
-			fsslice: []types.FieldSpec{
-				{
-					Path:               "spec/template/metadata/annotations",
-					CreateIfNotPresent: true,
-				},
-			},
-			expectedSetEntryArgs: []filtertest_test.SetValueArg{
-				{
-					Key:      "a",
-					Value:    "a1",
-					Tag:      "!!str",
-					NodePath: []string{"metadata", "annotations"},
-				},
-				{
-					Key:      "a",
-					Value:    "a1",
-					Tag:      "!!str",
-					NodePath: []string{"spec", "template", "metadata", "annotations"},
-				},
-				{
-					Key:      "b",
-					Value:    "b1",
-					Tag:      "!!str",
-					NodePath: []string{"metadata", "annotations"},
-				},
-				{
-					Key:      "b",
-					Value:    "b1",
-					Tag:      "!!str",
-					NodePath: []string{"spec", "template", "metadata", "annotations"},
-				},
-			},
-		},
 	}
 
 	for tn, tc := range testCases {
-		mutationTrackStub.Reset()
 		t.Run(tn, func(t *testing.T) {
 			filter := tc.filter
-			filter.WithMutationTracker(tc.setEntryCallback)
 			filter.FsSlice = append(annosFs, tc.fsslice...)
 			if !assert.Equal(t,
 				strings.TrimSpace(tc.expectedOutput),
 				strings.TrimSpace(filtertest_test.RunFilter(t, tc.input, filter))) {
 				t.FailNow()
 			}
-			if !assert.Equal(t, tc.expectedSetEntryArgs, mutationTrackStub.SetValueArgs()) {
-				t.FailNow()
-			}
 		})
 	}
 }

api/filters/doc.go

@@ -1,5 +0,0 @@
-package filters
-
-// Package filters collects various implementations
-// sigs.k8s.io/kustomize/kyaml/kio.Filter used by kustomize
-// transformers to modify kubernetes objects.

api/filters/fieldspec/fieldspec.go

@@ -11,7 +11,6 @@ import (
 	"sigs.k8s.io/kustomize/api/internal/utils"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/errors"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
@@ -46,13 +45,15 @@ type Filter struct {
 
 func (fltr Filter) Filter(obj *yaml.RNode) (*yaml.RNode, error) {
 	// check if the FieldSpec applies to the object
-	if match := isMatchGVK(fltr.FieldSpec, obj); !match {
-		return obj, nil
+	if match, err := isMatchGVK(fltr.FieldSpec, obj); !match || err != nil {
+		return obj, errors.Wrap(err)
 	}
-	fltr.path = utils.PathSplitter(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,
-			"considering field '%s' of object %s", fltr.FieldSpec.Path, resid.FromRNode(obj))
+			"considering field '%s' of object\n%v", fltr.FieldSpec.Path, s)
 	}
 	return obj, nil
 }
@@ -137,8 +138,6 @@ func (fltr Filter) handleMap(obj *yaml.RNode) error {
 // seq calls filter on all sequence elements
 func (fltr Filter) handleSequence(obj *yaml.RNode) error {
 	if err := obj.VisitElements(func(node *yaml.RNode) error {
-		// set an accurate FieldPath for nested elements
-		node.AppendToFieldPath(obj.FieldPath()...)
 		// 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
@@ -159,24 +158,28 @@ func isSequenceField(name string) (string, bool) {
 }
 
 // isMatchGVK returns true if the fs.GVK matches the obj GVK.
-func isMatchGVK(fs types.FieldSpec, obj *yaml.RNode) bool {
-	if kind := obj.GetKind(); fs.Kind != "" && fs.Kind != kind {
+func isMatchGVK(fs types.FieldSpec, obj *yaml.RNode) (bool, error) {
+	meta, err := obj.GetMeta()
+	if err != nil {
+		return false, err
+	}
+	if fs.Kind != "" && fs.Kind != meta.Kind {
 		// kind doesn't match
-		return false
+		return false, err
 	}
 
 	// parse the group and version from the apiVersion field
-	group, version := resid.ParseGroupVersion(obj.GetApiVersion())
+	group, version := parseGV(meta.APIVersion)
 
 	if fs.Group != "" && fs.Group != group {
 		// group doesn't match
-		return false
+		return false, nil
 	}
 
 	if fs.Version != "" && fs.Version != version {
 		// version doesn't match
-		return false
+		return false, nil
 	}
 
-	return true
+	return true, nil
 }

api/filters/fieldspec/fieldspec_test.go

@@ -46,11 +46,10 @@ xxx:
 		"empty path": {
 			fieldSpec: `
 group: foo
-version: v1
 kind: Bar
 `,
 			input: `
-apiVersion: foo/v1
+apiVersion: foo
 kind: Bar
 xxx:
 `,
@@ -59,7 +58,11 @@ apiVersion: foo
 kind: Bar
 xxx:
 `,
-			error: `considering field '' of object Bar.v1.foo/[noName].[noNs]: cannot set or create an empty field name`,
+			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"),
 			},
@@ -192,14 +195,11 @@ kind: Bar
 			input: `
 a:
   b: c
-`,
-			expected: `
-a:
-  b: c
 `,
 			filter: fieldspec.Filter{
 				SetValue: filtersutil.SetScalar("e"),
 			},
+			error: "missing Resource metadata",
 		},
 
 		"miss-match-type": {
@@ -212,7 +212,11 @@ kind: Bar
 a:
   b: a
 `,
-			error: `considering field 'a/b/c' of object Bar.[noVer].[noGrp]/[noName].[noNs]: expected sequence or mapping node`,
+			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"),
 			},
@@ -558,85 +562,3 @@ a:
 		})
 	}
 }
-
-func TestFilter_FieldPaths(t *testing.T) {
-	testCases := map[string]struct {
-		input     string
-		fieldSpec string
-		expected  []string
-	}{
-		"fieldpath containing SequenceNode": {
-			input: `
-apiVersion: v1
-kind: Pod
-metadata:
-  name: app
-spec:
-  containers:
-  - name: store
-    image: redis:6.2.6
-  - name: server
-    image: nginx:latest
-`,
-			fieldSpec: `
-path: spec/containers[]/image
-kind: Pod
-`,
-			expected: []string{
-				"spec.containers.image",
-				"spec.containers.image",
-			},
-		},
-		"fieldpath with MappingNode": {
-			input: `
-apiVersion: v1
-kind: Pod
-metadata:
-  name: app
-spec:
-  containers:
-  - name: store
-    image: redis:6.2.6
-  - name: server
-    image: nginx:latest
-`,
-			fieldSpec: `
-path: metadata/name
-kind: Pod
-`,
-			expected: []string{
-				"metadata.name",
-			},
-		},
-	}
-	for name, tc := range testCases {
-		var fieldPaths []string
-		trackableSetter := filtersutil.TrackableSetter{}
-		trackableSetter.WithMutationTracker(func(key, value, tag string, node *yaml.RNode) {
-			fieldPaths = append(fieldPaths, strings.Join(node.FieldPath(), "."))
-		})
-		filter := fieldspec.Filter{
-			SetValue: trackableSetter.SetScalar("foo"),
-		}
-
-		t.Run(name, func(t *testing.T) {
-			err := yaml.Unmarshal([]byte(tc.fieldSpec), &filter.FieldSpec)
-			assert.NoError(t, err)
-			rw := &kio.ByteReadWriter{
-				Reader:                bytes.NewBufferString(tc.input),
-				Writer:                &bytes.Buffer{},
-				OmitReaderAnnotations: true,
-			}
-
-			// run the filter
-			err = kio.Pipeline{
-				Inputs:  []kio.Reader{rw},
-				Filters: []kio.Filter{kio.FilterAll(filter)},
-				Outputs: []kio.Writer{rw},
-			}.Execute()
-
-			assert.NoError(t, err)
-			assert.Equal(t, tc.expected, fieldPaths)
-		})
-	}
-}

api/filters/fieldspec/gvk.go

@@ -0,0 +1,49 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+package fieldspec
+
+import (
+	"strings"
+
+	"sigs.k8s.io/kustomize/api/resid"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+// Return true for 'v' followed by a 1 or 2, and don't look at rest.
+// I.e. 'v1', 'v1beta1', 'v2', would return true.
+func looksLikeACoreApiVersion(s string) bool {
+	if len(s) < 2 {
+		return false
+	}
+	if s[0:1] != "v" {
+		return false
+	}
+	return s[1:2] == "1" || s[1:2] == "2"
+}
+
+// parseGV parses apiVersion field into group and version.
+func parseGV(apiVersion string) (group, version string) {
+	// parse the group and version from the apiVersion field
+	parts := strings.SplitN(apiVersion, "/", 2)
+	group = parts[0]
+	if len(parts) > 1 {
+		version = parts[1]
+	}
+	// Special case the original "apiVersion" of what
+	// we now call the "core" (empty) group.
+	if version == "" && looksLikeACoreApiVersion(group) {
+		version = group
+		group = ""
+	}
+	return
+}
+
+// GetGVK parses the metadata into a GVK
+func GetGVK(meta yaml.ResourceMeta) resid.Gvk {
+	group, version := parseGV(meta.APIVersion)
+	return resid.Gvk{
+		Group:   group,
+		Version: version,
+		Kind:    meta.Kind,
+	}
+}

api/filters/fieldspec/gvk_test.go

@@ -0,0 +1,156 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+package fieldspec
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/api/resid"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+func TestParseGV(t *testing.T) {
+	testCases := map[string]struct {
+		input           string
+		expectedGroup   string
+		expectedVersion string
+	}{
+		"empty": {
+			input:           "",
+			expectedGroup:   "",
+			expectedVersion: "",
+		},
+		"certSigning": {
+			input:           "certificates.k8s.io/v1beta1",
+			expectedGroup:   "certificates.k8s.io",
+			expectedVersion: "v1beta1",
+		},
+		"extensions": {
+			input:           "extensions/v1beta1",
+			expectedGroup:   "extensions",
+			expectedVersion: "v1beta1",
+		},
+		"normal": {
+			input:           "apps/v1",
+			expectedGroup:   "apps",
+			expectedVersion: "v1",
+		},
+		"justApps": {
+			input:           "apps",
+			expectedGroup:   "apps",
+			expectedVersion: "",
+		},
+		"coreV1": {
+			input:           "v1",
+			expectedGroup:   "",
+			expectedVersion: "v1",
+		},
+		"coreV2": {
+			input:           "v2",
+			expectedGroup:   "",
+			expectedVersion: "v2",
+		},
+		"coreV2Beta1": {
+			input:           "v2beta1",
+			expectedGroup:   "",
+			expectedVersion: "v2beta1",
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			group, version := parseGV(tc.input)
+			if !assert.Equal(t, tc.expectedGroup, group) {
+				t.FailNow()
+			}
+			if !assert.Equal(t, tc.expectedVersion, version) {
+				t.FailNow()
+			}
+		})
+	}
+}
+
+func TestGetGVK(t *testing.T) {
+	testCases := map[string]struct {
+		input      string
+		expected   resid.Gvk
+		parseError string
+		metaError  string
+	}{
+		"empty": {
+			input: `
+`,
+			parseError: "EOF",
+		},
+		"junk": {
+			input: `
+congress: effective
+`,
+			metaError: "missing Resource metadata",
+		},
+		"normal": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+`,
+			expected: resid.Gvk{Group: "apps", Version: "v1", Kind: "Deployment"},
+		},
+		"apiVersionOnlyWithSlash": {
+			input: `
+apiVersion: apps/v1
+`,
+			expected: resid.Gvk{Group: "apps", Version: "v1", Kind: ""},
+		},
+		"apiVersionOnlyNoSlash1": {
+			input: `
+apiVersion: apps
+`,
+			expected: resid.Gvk{Group: "apps", Version: "", Kind: ""},
+		},
+		"apiVersionOnlyNoSlash2": {
+			input: `
+apiVersion: v1
+`,
+			expected: resid.Gvk{Group: "", Version: "v1", Kind: ""},
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			obj, err := yaml.Parse(tc.input)
+			if len(tc.parseError) != 0 {
+				if err == nil {
+					t.Error("expected parse error")
+					return
+				}
+				if !strings.Contains(err.Error(), tc.parseError) {
+					t.Errorf("expected parse err '%s', got '%v'", tc.parseError, err)
+				}
+				return
+			}
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+			meta, err := obj.GetMeta()
+			if len(tc.metaError) != 0 {
+				if err == nil {
+					t.Error("expected meta error")
+					return
+				}
+				if !strings.Contains(err.Error(), tc.metaError) {
+					t.Errorf("expected meta err '%s', got '%v'", tc.metaError, err)
+				}
+				return
+			}
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+			gvk := GetGVK(meta)
+			if !assert.Equal(t, tc.expected, gvk) {
+				t.FailNow()
+			}
+		})
+	}
+}

api/filters/filtersutil/setters.go

@@ -21,6 +21,9 @@ func SetEntry(key, value, tag string) SetFn {
 		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,
@@ -28,39 +31,3 @@ func SetEntry(key, value, tag string) SetFn {
 		})
 	}
 }
-
-type TrackableSetter struct {
-	// SetValueCallback will be invoked each time a field is set
-	setValueCallback func(key, value, tag string, node *yaml.RNode)
-}
-
-// WithMutationTracker registers a callback which will be invoked each time a field is mutated
-func (s *TrackableSetter) WithMutationTracker(callback func(key, value, tag string, node *yaml.RNode)) {
-	s.setValueCallback = callback
-}
-
-// SetScalar returns a SetFn to set a scalar value
-// if a mutation tracker has been registered, the tracker will be invoked each
-// time a scalar is set
-func (s TrackableSetter) SetScalar(value string) SetFn {
-	origSetScalar := SetScalar(value)
-	return func(node *yaml.RNode) error {
-		if s.setValueCallback != nil {
-			s.setValueCallback("", value, "", node)
-		}
-		return origSetScalar(node)
-	}
-}
-
-// SetEntry returns a SetFn to set an entry in a map
-// if a mutation tracker has been registered, the tracker will be invoked each
-// time an entry is set
-func (s TrackableSetter) SetEntry(key, value, tag string) SetFn {
-	origSetEntry := SetEntry(key, value, tag)
-	return func(node *yaml.RNode) error {
-		if s.setValueCallback != nil {
-			s.setValueCallback(key, value, tag, node)
-		}
-		return origSetEntry(node)
-	}
-}

api/filters/iampolicygenerator/doc.go

@@ -1,3 +0,0 @@
-// Package gkesagenerator contains a kio.Filter that that generates a
-// iampolicy-related resources for a given cloud provider
-package iampolicygenerator

api/filters/iampolicygenerator/example_test.go

@@ -1,46 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package iampolicygenerator
-
-import (
-	"log"
-	"os"
-
-	"sigs.k8s.io/kustomize/kyaml/kio"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-func ExampleFilter() {
-	f := Filter{}
-	var err = yaml.Unmarshal([]byte(`
-cloud: gke
-kubernetesService: 
-  namespace: k8s-namespace
-  name: k8s-sa-name
-serviceAccount:
-  name: gsa-name
-  projectId: project-id
-`), &f)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	err = kio.Pipeline{
-		Inputs:  []kio.Reader{},
-		Filters: []kio.Filter{f},
-		Outputs: []kio.Writer{kio.ByteWriter{Writer: os.Stdout}},
-	}.Execute()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Output:
-	// apiVersion: v1
-	// kind: ServiceAccount
-	// metadata:
-	//   annotations:
-	//     iam.gke.io/gcp-service-account: gsa-name@project-id.iam.gserviceaccount.com
-	//   name: k8s-sa-name
-	//   namespace: k8s-namespace
-}

api/filters/iampolicygenerator/iampolicygenerator.go

@@ -1,55 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package iampolicygenerator
-
-import (
-	"fmt"
-
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-type Filter struct {
-	IAMPolicyGenerator types.IAMPolicyGeneratorArgs `json:",inline,omitempty" yaml:",inline,omitempty"`
-}
-
-// Filter adds a GKE service account object to nodes
-func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
-	switch f.IAMPolicyGenerator.Cloud {
-	case types.GKE:
-		IAMPolicyResources, err := f.generateGkeIAMPolicyResources()
-		if err != nil {
-			return nil, err
-		}
-		nodes = append(nodes, IAMPolicyResources...)
-	default:
-		return nil, fmt.Errorf("cloud provider %s not supported yet", f.IAMPolicyGenerator.Cloud)
-	}
-	return nodes, nil
-}
-
-func (f Filter) generateGkeIAMPolicyResources() ([]*yaml.RNode, error) {
-	var result []*yaml.RNode
-	input := fmt.Sprintf(`
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  annotations:
-    iam.gke.io/gcp-service-account: %s@%s.iam.gserviceaccount.com
-  name: %s
-`, f.IAMPolicyGenerator.ServiceAccount.Name,
-		f.IAMPolicyGenerator.ProjectId,
-		f.IAMPolicyGenerator.KubernetesService.Name)
-
-	if f.IAMPolicyGenerator.Namespace != "" {
-		input = input + fmt.Sprintf("\n  namespace: %s", f.IAMPolicyGenerator.Namespace)
-	}
-
-	sa, err := yaml.Parse(input)
-	if err != nil {
-		return nil, err
-	}
-
-	return append(result, sa), nil
-}

api/filters/iampolicygenerator/iampolicygenerator_test.go

@@ -1,75 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package iampolicygenerator
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	filtertest "sigs.k8s.io/kustomize/api/testutils/filtertest"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func TestFilter(t *testing.T) {
-	testCases := map[string]struct {
-		args     types.IAMPolicyGeneratorArgs
-		expected string
-	}{
-		"with namespace": {
-			args: types.IAMPolicyGeneratorArgs{
-				Cloud: types.GKE,
-				KubernetesService: types.KubernetesService{
-					Namespace: "k8s-namespace",
-					Name:      "k8s-sa-name",
-				},
-				ServiceAccount: types.ServiceAccount{
-					Name:      "gsa-name",
-					ProjectId: "project-id",
-				},
-			},
-			expected: `
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  annotations:
-    iam.gke.io/gcp-service-account: gsa-name@project-id.iam.gserviceaccount.com
-  name: k8s-sa-name
-  namespace: k8s-namespace
-`,
-		},
-		"without namespace": {
-			args: types.IAMPolicyGeneratorArgs{
-				Cloud: types.GKE,
-				KubernetesService: types.KubernetesService{
-					Name: "k8s-sa-name",
-				},
-				ServiceAccount: types.ServiceAccount{
-					Name:      "gsa-name",
-					ProjectId: "project-id",
-				},
-			},
-			expected: `
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  annotations:
-    iam.gke.io/gcp-service-account: gsa-name@project-id.iam.gserviceaccount.com
-  name: k8s-sa-name
-`,
-		},
-	}
-
-	for tn, tc := range testCases {
-		t.Run(tn, func(t *testing.T) {
-			f := Filter{
-				IAMPolicyGenerator: tc.args,
-			}
-			actual := filtertest.RunFilter(t, "", f)
-			if !assert.Equal(t, strings.TrimSpace(tc.expected), strings.TrimSpace(actual)) {
-				t.FailNow()
-			}
-		})
-	}
-}

api/filters/imagetag/imagetag.go

@@ -23,17 +23,9 @@ type Filter struct {
 	// FsSlice contains the FieldSpecs to locate an image field,
 	// e.g. Path: "spec/myContainers[]/image"
 	FsSlice types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
-
-	trackableSetter filtersutil.TrackableSetter
 }
 
 var _ kio.Filter = Filter{}
-var _ kio.TrackableFilter = &Filter{}
-
-// WithMutationTracker registers a callback which will be invoked each time a field is mutated
-func (f *Filter) WithMutationTracker(callback func(key, value, tag string, node *yaml.RNode)) {
-	f.trackableSetter.WithMutationTracker(callback)
-}
 
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	_, err := kio.FilterAll(yaml.FilterFunc(f.filter)).Filter(nodes)
@@ -48,11 +40,8 @@ func (f Filter) filter(node *yaml.RNode) (*yaml.RNode, error) {
 		return node, nil
 	}
 	if err := node.PipeE(fsslice.Filter{
-		FsSlice: f.FsSlice,
-		SetValue: imageTagUpdater{
-			ImageTag:        f.ImageTag,
-			trackableSetter: f.trackableSetter,
-		}.SetImageValue,
+		FsSlice:  f.FsSlice,
+		SetValue: updateImageTagFn(f.ImageTag),
 	}); err != nil {
 		return nil, err
 	}
@@ -70,3 +59,11 @@ func (f Filter) isOnDenyList(node *yaml.RNode) bool {
 	// 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

@@ -10,18 +10,14 @@ import (
 	"github.com/stretchr/testify/assert"
 	filtertest "sigs.k8s.io/kustomize/api/testutils/filtertest"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 func TestImageTagUpdater_Filter(t *testing.T) {
-	mutationTrackerStub := filtertest.MutationTrackerStub{}
 	testCases := map[string]struct {
-		input                string
-		expectedOutput       string
-		filter               Filter
-		fsSlice              types.FsSlice
-		setValueCallback     func(key, value, tag string, node *yaml.RNode)
-		expectedSetValueArgs []filtertest.SetValueArg
+		input          string
+		expectedOutput string
+		filter         Filter
+		fsSlice        types.FsSlice
 	}{
 		"ignore CustomResourceDefinition": {
 			input: `
@@ -662,198 +658,17 @@ spec:
 				},
 			},
 		},
-		"mutation tracker": {
-			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",
-				},
-			},
-			setValueCallback: mutationTrackerStub.MutationTracker,
-			expectedSetValueArgs: []filtertest.SetValueArg{
-				{
-					Value:    "busybox:v3",
-					NodePath: []string{"spec", "template", "spec", "containers", "image"},
-				},
-				{
-					Value:    "busybox:v3",
-					NodePath: []string{"spec", "template", "spec", "containers", "image"},
-				},
-				{
-					Value:    "busybox:v3",
-					NodePath: []string{"spec", "template", "spec", "initContainers", "image"},
-				},
-				{
-					Value:    "busybox:v3",
-					NodePath: []string{"spec", "template", "spec", "initContainers", "image"},
-				},
-			},
-		},
-		"image with tag and digest new name": {
-			input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-spec:
-  image: nginx:1.2.1@sha256:46d5b90a7f4e9996351ad893a26bcbd27216676ad4d5316088ce351fb2c2c3dd
-`,
-			expectedOutput: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-spec:
-  image: apache:1.2.1@sha256:46d5b90a7f4e9996351ad893a26bcbd27216676ad4d5316088ce351fb2c2c3dd
-`,
-			filter: Filter{
-				ImageTag: types.Image{
-					Name:    "nginx",
-					NewName: "apache",
-				},
-			},
-			fsSlice: []types.FieldSpec{
-				{
-					Path: "spec/image",
-				},
-			},
-		},
-		"image with tag and digest new name new tag": {
-			input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-spec:
-  image: nginx:1.2.1@sha256:46d5b90a7f4e9996351ad893a26bcbd27216676ad4d5316088ce351fb2c2c3dd
-`,
-			expectedOutput: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-spec:
-  image: apache:1.3.0
-`,
-			filter: Filter{
-				ImageTag: types.Image{
-					Name:    "nginx",
-					NewName: "apache",
-					NewTag:  "1.3.0",
-				},
-			},
-			fsSlice: []types.FieldSpec{
-				{
-					Path: "spec/image",
-				},
-			},
-		},
-		"image with tag and digest new name new tag and digest": {
-			input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-spec:
-  image: nginx:1.2.1@sha256:46d5b90a7f4e9996351ad893a26bcbd27216676ad4d5316088ce351fb2c2c3dd
-`,
-			expectedOutput: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-spec:
-  image: apache:1.3.0@sha256:xyz
-`,
-			filter: Filter{
-				ImageTag: types.Image{
-					Name:    "nginx",
-					NewName: "apache",
-					NewTag:  "1.3.0",
-					Digest:  "sha256:xyz",
-				},
-			},
-			fsSlice: []types.FieldSpec{
-				{
-					Path: "spec/image",
-				},
-			},
-		},
 	}
 
 	for tn, tc := range testCases {
-		mutationTrackerStub.Reset()
 		t.Run(tn, func(t *testing.T) {
 			filter := tc.filter
-			filter.WithMutationTracker(tc.setValueCallback)
 			filter.FsSlice = tc.fsSlice
 			if !assert.Equal(t,
 				strings.TrimSpace(tc.expectedOutput),
 				strings.TrimSpace(filtertest.RunFilter(t, tc.input, filter))) {
 				t.FailNow()
 			}
-			assert.Equal(t, tc.expectedSetValueArgs, mutationTrackerStub.SetValueArgs())
 		})
 	}
 }

api/filters/imagetag/legacy.go

@@ -4,7 +4,6 @@
 package imagetag
 
 import (
-	"sigs.k8s.io/kustomize/api/internal/utils"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
@@ -75,7 +74,7 @@ func (f findFieldsFilter) walk(node *yaml.RNode) error {
 				return err
 			}
 			key := n.Key.YNode().Value
-			if utils.StringSliceContains(f.fields, key) {
+			if contains(f.fields, key) {
 				return f.fieldCallback(n.Value)
 			}
 			return nil
@@ -88,6 +87,15 @@ func (f findFieldsFilter) walk(node *yaml.RNode) error {
 	return nil
 }
 
+func contains(slice []string, str string) bool {
+	for _, s := range slice {
+		if s == str {
+			return true
+		}
+	}
+	return false
+}
+
 func checkImageTagsFn(imageTag types.Image) fieldCallback {
 	return func(node *yaml.RNode) error {
 		if node.YNode().Kind != yaml.SequenceNode {

api/filters/imagetag/updater.go

@@ -4,7 +4,6 @@
 package imagetag
 
 import (
-	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/image"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
@@ -14,53 +13,31 @@ import (
 // that will update the value of the yaml node based on the provided
 // ImageTag if the current value matches the format of an image reference.
 type imageTagUpdater struct {
-	Kind            string      `yaml:"kind,omitempty"`
-	ImageTag        types.Image `yaml:"imageTag,omitempty"`
-	trackableSetter filtersutil.TrackableSetter
+	Kind     string      `yaml:"kind,omitempty"`
+	ImageTag types.Image `yaml:"imageTag,omitempty"`
 }
 
-func (u imageTagUpdater) SetImageValue(rn *yaml.RNode) error {
+func (u imageTagUpdater) Filter(rn *yaml.RNode) (*yaml.RNode, error) {
 	if err := yaml.ErrorIfInvalid(rn, yaml.ScalarNode); err != nil {
-		return err
+		return nil, err
 	}
 
 	value := rn.YNode().Value
 
 	if !image.IsImageMatched(value, u.ImageTag.Name) {
-		return nil
+		return rn, nil
 	}
 
-	name, tag, digest := image.Split(value)
+	name, tag := image.Split(value)
 	if u.ImageTag.NewName != "" {
 		name = u.ImageTag.NewName
 	}
-
-	// overriding tag or digest will replace both original tag and digest values
-	if u.ImageTag.NewTag != "" && u.ImageTag.Digest != "" {
-		tag = u.ImageTag.NewTag
-		digest = u.ImageTag.Digest
-	} else if u.ImageTag.NewTag != "" {
-		tag = u.ImageTag.NewTag
-		digest = ""
-	} else if u.ImageTag.Digest != "" {
-		tag = ""
-		digest = u.ImageTag.Digest
+	if u.ImageTag.NewTag != "" {
+		tag = ":" + u.ImageTag.NewTag
+	}
+	if u.ImageTag.Digest != "" {
+		tag = "@" + u.ImageTag.Digest
 	}
 
-	// build final image name
-	if tag != "" {
-		name += ":" + tag
-	}
-	if digest != "" {
-		name += "@" + digest
-	}
-
-	return u.trackableSetter.SetScalar(name)(rn)
-}
-
-func (u imageTagUpdater) Filter(rn *yaml.RNode) (*yaml.RNode, error) {
-	if err := u.SetImageValue(rn); err != nil {
-		return nil, err
-	}
-	return rn, nil
+	return rn.Pipe(yaml.FieldSetter{StringValue: name + tag})
 }

api/filters/labels/labels.go

@@ -20,17 +20,9 @@ type Filter struct {
 
 	// FsSlice identifies the label fields.
 	FsSlice types.FsSlice
-
-	trackableSetter filtersutil.TrackableSetter
 }
 
 var _ kio.Filter = Filter{}
-var _ kio.TrackableFilter = &Filter{}
-
-// WithMutationTracker registers a callback which will be invoked each time a field is mutated
-func (f *Filter) WithMutationTracker(callback func(key, value, tag string, node *yaml.RNode)) {
-	f.trackableSetter.WithMutationTracker(callback)
-}
 
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	keys := yaml.SortedMapKeys(f.Labels)
@@ -39,7 +31,7 @@ func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 			for _, k := range keys {
 				if err := node.PipeE(fsslice.Filter{
 					FsSlice: f.FsSlice,
-					SetValue: f.trackableSetter.SetEntry(
+					SetValue: filtersutil.SetEntry(
 						k, f.Labels[k], yaml.NodeTagString),
 					CreateKind: yaml.MappingNode, // Labels are MappingNodes.
 					CreateTag:  yaml.NodeTagMap,

api/filters/labels/labels_test.go

@@ -8,20 +8,16 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/api/resid"
 	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/resid"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 func TestLabels_Filter(t *testing.T) {
-	mutationTrackerStub := filtertest_test.MutationTrackerStub{}
 	testCases := map[string]struct {
-		input                string
-		expectedOutput       string
-		filter               Filter
-		setEntryCallback     func(key, value, tag string, node *yaml.RNode)
-		expectedSetEntryArgs []filtertest_test.SetValueArg
+		input          string
+		expectedOutput string
+		filter         Filter
 	}{
 		"add": {
 			input: `
@@ -403,74 +399,15 @@ metadata:
 				},
 			},
 		},
-
-		// test usage of SetEntryCallback
-		"set_entry_callback": {
-			input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-  labels:
-    witcher: geralt
-`,
-			expectedOutput: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-  labels:
-    witcher: geralt
-    mage: yennefer
-a:
-  b:
-    mage: yennefer
-`,
-			filter: Filter{
-				Labels: labelMap{
-					"mage": "yennefer",
-				},
-				FsSlice: []types.FieldSpec{
-					{
-						Path:               "metadata/labels",
-						CreateIfNotPresent: true,
-					},
-					{
-						Path:               "a/b",
-						CreateIfNotPresent: true,
-					},
-				},
-			},
-			setEntryCallback: mutationTrackerStub.MutationTracker,
-			expectedSetEntryArgs: []filtertest_test.SetValueArg{
-				{
-					Key:      "mage",
-					Value:    "yennefer",
-					Tag:      "!!str",
-					NodePath: []string{"metadata", "labels"},
-				},
-				{
-					Key:      "mage",
-					Value:    "yennefer",
-					Tag:      "!!str",
-					NodePath: []string{"a", "b"},
-				},
-			},
-		},
 	}
 
 	for tn, tc := range testCases {
-		mutationTrackerStub.Reset()
 		t.Run(tn, func(t *testing.T) {
-			tc.filter.WithMutationTracker(tc.setEntryCallback)
 			if !assert.Equal(t,
 				strings.TrimSpace(tc.expectedOutput),
 				strings.TrimSpace(filtertest_test.RunFilter(t, tc.input, tc.filter))) {
 				t.FailNow()
 			}
-			if !assert.Equal(t, tc.expectedSetEntryArgs, mutationTrackerStub.SetValueArgs()) {
-				t.FailNow()
-			}
 		})
 	}
 }

api/filters/nameref/nameref.go

@@ -6,11 +6,11 @@ import (
 
 	"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/kio"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
@@ -56,7 +56,6 @@ func (f Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
 		// sanity check.
 		return nil, err
 	}
-	f.NameFieldToUpdate.Gvk = f.Referrer.GetGvk()
 	if err := node.PipeE(fieldspec.Filter{
 		FieldSpec: f.NameFieldToUpdate,
 		SetValue:  f.set,
@@ -185,7 +184,7 @@ func (f Filter) recordTheReferral(referral *resource.Resource) {
 
 // getRoleRefGvk returns a Gvk in the roleRef field. Return error
 // if the roleRef, roleRef/apiGroup or roleRef/kind is missing.
-func getRoleRefGvk(n *resource.Resource) (*resid.Gvk, error) {
+func getRoleRefGvk(n *yaml.RNode) (*resid.Gvk, error) {
 	roleRef, err := n.Pipe(yaml.Lookup("roleRef"))
 	if err != nil {
 		return nil, err
@@ -258,7 +257,8 @@ func previousIdSelectedByGvk(gvk *resid.Gvk) sieveFunc {
 
 // 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, there can be a referral.
+// 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
@@ -270,7 +270,7 @@ func (f Filter) roleRefFilter() sieveFunc {
 	if !strings.HasSuffix(f.NameFieldToUpdate.Path, "roleRef/name") {
 		return acceptAll
 	}
-	roleRefGvk, err := getRoleRefGvk(f.Referrer)
+	roleRefGvk, err := getRoleRefGvk(f.Referrer.AsRNode())
 	if err != nil {
 		return acceptAll
 	}
@@ -285,12 +285,12 @@ func prefixSuffixEquals(other resource.ResCtx) sieveFunc {
 
 func (f Filter) sameCurrentNamespaceAsReferrer() sieveFunc {
 	referrerCurId := f.Referrer.CurId()
-	if referrerCurId.IsClusterScoped() {
+	if !referrerCurId.IsNamespaceableKind() {
 		// If the referrer is cluster-scoped, let anything through.
 		return acceptAll
 	}
 	return func(r *resource.Resource) bool {
-		if r.CurId().IsClusterScoped() {
+		if !r.CurId().IsNamespaceableKind() {
 			// Allow cluster-scoped through.
 			return true
 		}

api/filters/nameref/nameref_test.go

@@ -6,10 +6,10 @@ import (
 
 	"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"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 )
 
 func TestNamerefFilter(t *testing.T) {

api/filters/namespace/namespace.go

@@ -4,11 +4,11 @@
 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"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
@@ -18,17 +18,9 @@ type Filter struct {
 
 	// FsSlice contains the FieldSpecs to locate the namespace field
 	FsSlice types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
-
-	trackableSetter filtersutil.TrackableSetter
 }
 
 var _ kio.Filter = Filter{}
-var _ kio.TrackableFilter = &Filter{}
-
-// WithMutationTracker registers a callback which will be invoked each time a field is mutated
-func (ns *Filter) WithMutationTracker(callback func(key, value, tag string, node *yaml.RNode)) {
-	ns.trackableSetter.WithMutationTracker(callback)
-}
 
 func (ns Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	return kio.FilterAll(yaml.FilterFunc(ns.run)).Filter(nodes)
@@ -52,7 +44,7 @@ func (ns Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
 	// transformations based on data -- :)
 	err := node.PipeE(fsslice.Filter{
 		FsSlice:    ns.FsSlice,
-		SetValue:   ns.trackableSetter.SetEntry("", ns.Namespace, yaml.NodeTagString),
+		SetValue:   filtersutil.SetScalar(ns.Namespace),
 		CreateKind: yaml.ScalarNode, // Namespace is a ScalarNode
 		CreateTag:  yaml.NodeTagString,
 	})
@@ -62,11 +54,16 @@ func (ns Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
 // hacks applies the namespace transforms that are hardcoded rather
 // than specified through FieldSpecs.
 func (ns Filter) hacks(obj *yaml.RNode) error {
-	gvk := resid.GvkFromNode(obj)
-	if err := ns.metaNamespaceHack(obj, gvk); err != nil {
+	meta, err := obj.GetMeta()
+	if err != nil {
 		return err
 	}
-	return ns.roleBindingHack(obj, gvk)
+
+	if err := ns.metaNamespaceHack(obj, meta); err != nil {
+		return err
+	}
+
+	return ns.roleBindingHack(obj, meta)
 }
 
 // metaNamespaceHack is a hack for implementing the namespace transform
@@ -77,15 +74,16 @@ func (ns Filter) hacks(obj *yaml.RNode) error {
 // 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, gvk resid.Gvk) error {
-	if gvk.IsClusterScoped() {
+func (ns Filter) metaNamespaceHack(obj *yaml.RNode, meta yaml.ResourceMeta) error {
+	gvk := fieldspec.GetGVK(meta)
+	if !gvk.IsNamespaceableKind() {
 		return nil
 	}
 	f := fsslice.Filter{
 		FsSlice: []types.FieldSpec{
 			{Path: types.MetadataNamespacePath, CreateIfNotPresent: true},
 		},
-		SetValue:   ns.trackableSetter.SetEntry("", ns.Namespace, yaml.NodeTagString),
+		SetValue:   filtersutil.SetScalar(ns.Namespace),
 		CreateKind: yaml.ScalarNode, // Namespace is a ScalarNode
 	}
 	_, err := f.Filter(obj)
@@ -106,8 +104,8 @@ func (ns Filter) metaNamespaceHack(obj *yaml.RNode, gvk resid.Gvk) error {
 //   ...
 // - name: "something-else" # this will not have the namespace set
 //   ...
-func (ns Filter) roleBindingHack(obj *yaml.RNode, gvk resid.Gvk) error {
-	if gvk.Kind != roleBindingKind && gvk.Kind != clusterRoleBindingKind {
+func (ns Filter) roleBindingHack(obj *yaml.RNode, meta yaml.ResourceMeta) error {
+	if meta.Kind != roleBindingKind && meta.Kind != clusterRoleBindingKind {
 		return nil
 	}
 
@@ -131,15 +129,11 @@ func (ns Filter) roleBindingHack(obj *yaml.RNode, gvk resid.Gvk) error {
 		}
 
 		// set the namespace for the default account
-		node, err := o.Pipe(
+		v := yaml.NewScalarRNode(ns.Namespace)
+		return o.PipeE(
 			yaml.LookupCreate(yaml.ScalarNode, "namespace"),
+			yaml.FieldSetter{Value: v},
 		)
-		if err != nil {
-			return err
-		}
-
-		return ns.trackableSetter.SetEntry("", ns.Namespace, yaml.NodeTagString)(node)
-
 	})
 
 	return err

api/filters/namespace/namespace_test.go

@@ -12,11 +12,8 @@ import (
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
 	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
-var mutationTrackerStub = filtertest_test.MutationTrackerStub{}
-
 var tests = []TestCase{
 	{
 		name: "add",
@@ -286,125 +283,21 @@ a:
 			},
 		},
 	},
-
-	{
-		name: "mutation tracker",
-		input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
----
-apiVersion: example.com/v1
-kind: RoleBinding
-subjects:
-- name: default
-`,
-		expected: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-  namespace: bar
-a:
-  b:
-    c: bar
----
-apiVersion: example.com/v1
-kind: RoleBinding
-subjects:
-- name: default
-  namespace: bar
-metadata:
-  namespace: bar
-a:
-  b:
-    c: bar
-`,
-		filter: namespace.Filter{Namespace: "bar"},
-		fsslice: []types.FieldSpec{
-			{
-				Path:               "a/b/c",
-				CreateIfNotPresent: true,
-			},
-		},
-		mutationTracker: mutationTrackerStub.MutationTracker,
-		expectedSetValueArgs: []filtertest_test.SetValueArg{
-			{
-				Value:    "bar",
-				Tag:      "!!str",
-				NodePath: []string{"metadata", "namespace"},
-			},
-			{
-				Value:    "bar",
-				Tag:      "!!str",
-				NodePath: []string{"a", "b", "c"},
-			},
-			{
-				Value:    "bar",
-				Tag:      "!!str",
-				NodePath: []string{"metadata", "namespace"},
-			},
-			{
-				Value:    "bar",
-				Tag:      "!!str",
-				NodePath: []string{"namespace"},
-			},
-			{
-				Value:    "bar",
-				Tag:      "!!str",
-				NodePath: []string{"a", "b", "c"},
-			},
-		},
-	},
-
-	{
-		name: "numeric",
-		input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-`,
-		expected: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-  namespace: "01234"
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-  namespace: "01234"
-`,
-		filter: namespace.Filter{Namespace: "01234"},
-	},
 }
 
 type TestCase struct {
-	name                 string
-	input                string
-	expected             string
-	filter               namespace.Filter
-	fsslice              types.FsSlice
-	mutationTracker      func(key, value, tag string, node *yaml.RNode)
-	expectedSetValueArgs []filtertest_test.SetValueArg
+	name     string
+	input    string
+	expected string
+	filter   namespace.Filter
+	fsslice  types.FsSlice
 }
 
 var config = builtinconfig.MakeDefaultConfig()
 
 func TestNamespace_Filter(t *testing.T) {
 	for i := range tests {
-		mutationTrackerStub.Reset()
 		test := tests[i]
-		test.filter.WithMutationTracker(test.mutationTracker)
 		t.Run(test.name, func(t *testing.T) {
 			test.filter.FsSlice = append(config.NameSpace, test.fsslice...)
 			if !assert.Equal(t,
@@ -413,7 +306,6 @@ func TestNamespace_Filter(t *testing.T) {
 					filtertest_test.RunFilter(t, test.input, test.filter))) {
 				t.FailNow()
 			}
-			assert.Equal(t, test.expectedSetValueArgs, mutationTrackerStub.SetValueArgs())
 		})
 	}
 }

api/filters/prefix/doc.go

@@ -1,6 +0,0 @@
-// Copyright 2020 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package prefix contains a kio.Filter implementation of the kustomize
-// PrefixTransformer.
-package prefix

api/filters/prefix/example_test.go

@@ -1,47 +0,0 @@
-// Copyright 2020 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package prefix_test
-
-import (
-	"bytes"
-	"log"
-	"os"
-
-	"sigs.k8s.io/kustomize/api/filters/prefix"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/kio"
-)
-
-func ExampleFilter() {
-	err := kio.Pipeline{
-		Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(`
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-`)}},
-		Filters: []kio.Filter{prefix.Filter{
-			Prefix: "baz-", FieldSpec: types.FieldSpec{Path: "metadata/name"}}},
-		Outputs: []kio.Writer{kio.ByteWriter{Writer: os.Stdout}},
-	}.Execute()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Output:
-	// apiVersion: example.com/v1
-	// kind: Foo
-	// metadata:
-	//   name: baz-instance
-	// ---
-	// apiVersion: example.com/v1
-	// kind: Bar
-	// metadata:
-	//   name: baz-instance
-}

api/filters/prefix/prefix.go

@@ -1,50 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package prefix
-
-import (
-	"fmt"
-
-	"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"
-)
-
-// Filter applies resource name prefix's using the fieldSpecs
-type Filter struct {
-	Prefix string `json:"prefix,omitempty" yaml:"prefix,omitempty"`
-
-	FieldSpec types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
-
-	trackableSetter filtersutil.TrackableSetter
-}
-
-var _ kio.Filter = Filter{}
-var _ kio.TrackableFilter = &Filter{}
-
-// WithMutationTracker registers a callback which will be invoked each time a field is mutated
-func (f *Filter) WithMutationTracker(callback func(key, value, tag string, node *yaml.RNode)) {
-	f.trackableSetter.WithMutationTracker(callback)
-}
-
-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.evaluateField,
-		CreateKind: yaml.ScalarNode, // Name is a ScalarNode
-		CreateTag:  yaml.NodeTagString,
-	})
-	return node, err
-}
-
-func (f Filter) evaluateField(node *yaml.RNode) error {
-	return f.trackableSetter.SetScalar(fmt.Sprintf(
-		"%s%s", f.Prefix, node.YNode().Value))(node)
-}

api/filters/prefix/prefix_test.go

@@ -1,154 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package prefix_test
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"sigs.k8s.io/kustomize/api/filters/prefix"
-	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-var mutationTrackerStub = filtertest_test.MutationTrackerStub{}
-
-var tests = map[string]TestCase{
-	"prefix": {
-		input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-`,
-		expected: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: foo-instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: foo-instance
-`,
-		filter: prefix.Filter{
-			Prefix:    "foo-",
-			FieldSpec: types.FieldSpec{Path: "metadata/name"},
-		},
-	},
-
-	"data-fieldspecs": {
-		input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-a:
-  b:
-    c: d
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-a:
-  b:
-    c: d
-`,
-		expected: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-a:
-  b:
-    c: foo-d
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-a:
-  b:
-    c: foo-d
-`,
-		filter: prefix.Filter{
-			Prefix:    "foo-",
-			FieldSpec: types.FieldSpec{Path: "a/b/c"},
-		},
-	},
-
-	"mutation tracker": {
-		input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-`,
-		expected: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: foo-instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: foo-instance
-`,
-		filter: prefix.Filter{
-			Prefix:    "foo-",
-			FieldSpec: types.FieldSpec{Path: "metadata/name"},
-		},
-		mutationTracker: mutationTrackerStub.MutationTracker,
-		expectedSetValueArgs: []filtertest_test.SetValueArg{
-			{
-				Value:    "foo-instance",
-				NodePath: []string{"metadata", "name"},
-			},
-			{
-				Value:    "foo-instance",
-				NodePath: []string{"metadata", "name"},
-			},
-		},
-	},
-}
-
-type TestCase struct {
-	input                string
-	expected             string
-	filter               prefix.Filter
-	mutationTracker      func(key, value, tag string, node *yaml.RNode)
-	expectedSetValueArgs []filtertest_test.SetValueArg
-}
-
-func TestFilter(t *testing.T) {
-	for name := range tests {
-		mutationTrackerStub.Reset()
-		test := tests[name]
-		test.filter.WithMutationTracker(test.mutationTracker)
-		t.Run(name, func(t *testing.T) {
-			if !assert.Equal(t,
-				strings.TrimSpace(test.expected),
-				strings.TrimSpace(
-					filtertest_test.RunFilter(t, test.input, test.filter))) {
-				t.FailNow()
-			}
-			assert.Equal(t, test.expectedSetValueArgs, mutationTrackerStub.SetValueArgs())
-		})
-	}
-}

api/filters/prefixsuffix/doc.go

@@ -0,0 +1,6 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+// Package prefixsuffix contains a kio.Filter implementation of the kustomize
+// PrefixSuffixTransformer.
+package prefixsuffix

api/filters/prefixsuffix/example_test.go

@@ -0,0 +1,47 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package prefixsuffix_test
+
+import (
+	"bytes"
+	"log"
+	"os"
+
+	"sigs.k8s.io/kustomize/api/filters/prefixsuffix"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/kio"
+)
+
+func ExampleFilter() {
+	err := kio.Pipeline{
+		Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(`
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: instance
+`)}},
+		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 {
+		log.Fatal(err)
+	}
+
+	// Output:
+	// apiVersion: example.com/v1
+	// kind: Foo
+	// metadata:
+	//   name: baz-instance
+	// ---
+	// apiVersion: example.com/v1
+	// kind: Bar
+	// metadata:
+	//   name: baz-instance
+}

api/filters/prefixsuffix/prefixsuffix.go

@@ -0,0 +1,43 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package prefixsuffix
+
+import (
+	"fmt"
+
+	"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"
+)
+
+// Filter applies resource name prefix's and suffix's using the fieldSpecs
+type Filter struct {
+	Prefix string `json:"prefix,omitempty" yaml:"prefix,omitempty"`
+	Suffix string `json:"suffix,omitempty" yaml:"suffix,omitempty"`
+
+	FieldSpec types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
+}
+
+var _ kio.Filter = Filter{}
+
+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.evaluateField,
+		CreateKind: yaml.ScalarNode, // Name is a ScalarNode
+		CreateTag:  yaml.NodeTagString,
+	})
+	return node, err
+}
+
+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

@@ -0,0 +1,158 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package prefixsuffix_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/api/filters/prefixsuffix"
+	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
+	"sigs.k8s.io/kustomize/api/types"
+)
+
+var tests = map[string]TestCase{
+	"prefix": {
+		input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: instance
+`,
+		expected: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: foo-instance
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: foo-instance
+`,
+		filter: prefixsuffix.Filter{Prefix: "foo-"},
+		fs:     types.FieldSpec{Path: "metadata/name"},
+	},
+
+	"suffix": {
+		input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: instance
+`,
+		expected: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance-foo
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: instance-foo
+`,
+		filter: prefixsuffix.Filter{Suffix: "-foo"},
+		fs:     types.FieldSpec{Path: "metadata/name"},
+	},
+
+	"prefix-suffix": {
+		input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: instance
+`,
+		expected: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: bar-instance-foo
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: bar-instance-foo
+`,
+		filter: prefixsuffix.Filter{Prefix: "bar-", Suffix: "-foo"},
+		fs:     types.FieldSpec{Path: "metadata/name"},
+	},
+
+	"data-fieldspecs": {
+		input: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+a:
+  b:
+    c: d
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: instance
+a:
+  b:
+    c: d
+`,
+		expected: `
+apiVersion: example.com/v1
+kind: Foo
+metadata:
+  name: instance
+a:
+  b:
+    c: foo-d
+---
+apiVersion: example.com/v1
+kind: Bar
+metadata:
+  name: instance
+a:
+  b:
+    c: foo-d
+`,
+		filter: prefixsuffix.Filter{Prefix: "foo-"},
+		fs:     types.FieldSpec{Path: "a/b/c"},
+	},
+}
+
+type TestCase struct {
+	input    string
+	expected string
+	filter   prefixsuffix.Filter
+	fs       types.FieldSpec
+}
+
+func TestFilter(t *testing.T) {
+	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(
+					filtertest_test.RunFilter(t, test.input, test.filter))) {
+				t.FailNow()
+			}
+		})
+	}
+}

api/filters/refvar/refvar_test.go

@@ -243,7 +243,17 @@ metadata:
 data:
   slice:
   - false`,
-			expectedError: `considering field 'data/slice' of object Deployment.v1.apps/dep.[noNs]: invalid value type expect a string`,
+			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),
@@ -259,7 +269,16 @@ metadata:
   name: dep
 data:
   1: str`,
-			expectedError: `considering field 'data' of object Deployment.v1.apps/dep.[noNs]: invalid map key: value='1', tag='` + yaml.NodeTagInt + `'`,
+			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),

api/filters/replacement/replacement.go

@@ -7,10 +7,8 @@ import (
 	"fmt"
 	"strings"
 
-	"sigs.k8s.io/kustomize/api/internal/utils"
-	"sigs.k8s.io/kustomize/api/resource"
+	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
@@ -45,28 +43,11 @@ func applyReplacement(nodes []*yaml.RNode, value *yaml.RNode, targets []*types.T
 			t.FieldPaths = []string{types.DefaultReplacementFieldPath}
 		}
 		for _, n := range nodes {
-			ids, err := utils.MakeResIds(n)
-			if err != nil {
-				return nil, err
-			}
-
-			// filter targets by label and annotation selectors
-			selectByAnnoAndLabel, err := selectByAnnoAndLabel(n, t)
-			if err != nil {
-				return nil, err
-			}
-			if !selectByAnnoAndLabel {
-				continue
-			}
-
-			// filter targets by matching resource IDs
-			for _, id := range ids {
-				if id.IsSelectedBy(t.Select.ResId) && !rejectId(t.Reject, &id) {
-					err := applyToNode(n, value, t)
-					if err != nil {
-						return nil, err
-					}
-					break
+			nodeId := getKrmId(n)
+			if t.Select.KrmId.Match(nodeId) && !rejectId(t.Reject, nodeId) {
+				err := applyToNode(n, value, t)
+				if err != nil {
+					return nil, err
 				}
 			}
 		}
@@ -74,37 +55,9 @@ func applyReplacement(nodes []*yaml.RNode, value *yaml.RNode, targets []*types.T
 	return nodes, nil
 }
 
-func selectByAnnoAndLabel(n *yaml.RNode, t *types.TargetSelector) (bool, error) {
-	if matchesSelect, err := matchesAnnoAndLabelSelector(n, t.Select); !matchesSelect || err != nil {
-		return false, err
-	}
-	for _, reject := range t.Reject {
-		if reject.AnnotationSelector == "" && reject.LabelSelector == "" {
-			continue
-		}
-		if m, err := matchesAnnoAndLabelSelector(n, reject); m || err != nil {
-			return false, err
-		}
-	}
-	return true, nil
-}
-
-func matchesAnnoAndLabelSelector(n *yaml.RNode, selector *types.Selector) (bool, error) {
-	r := resource.Resource{RNode: *n}
-	annoMatch, err := r.MatchesAnnotationSelector(selector.AnnotationSelector)
-	if err != nil {
-		return false, err
-	}
-	labelMatch, err := r.MatchesLabelSelector(selector.LabelSelector)
-	if err != nil {
-		return false, err
-	}
-	return annoMatch && labelMatch, nil
-}
-
-func rejectId(rejects []*types.Selector, id *resid.ResId) bool {
+func rejectId(rejects []*types.Selector, nodeId *types.KrmId) bool {
 	for _, r := range rejects {
-		if !r.ResId.IsEmpty() && id.IsSelectedBy(r.ResId) {
+		if r.KrmId.Match(nodeId) {
 			return true
 		}
 	}
@@ -113,19 +66,19 @@ func rejectId(rejects []*types.Selector, id *resid.ResId) bool {
 
 func applyToNode(node *yaml.RNode, value *yaml.RNode, target *types.TargetSelector) error {
 	for _, fp := range target.FieldPaths {
-		fieldPath := utils.SmarterPathSplitter(fp, ".")
+		fieldPath := strings.Split(fp, ".")
 		var t *yaml.RNode
 		var err error
 		if target.Options != nil && target.Options.Create {
 			t, err = node.Pipe(yaml.LookupCreate(value.YNode().Kind, fieldPath...))
 		} else {
-			t, err = node.Pipe(&yaml.PathMatcher{Path: fieldPath})
+			t, err = node.Pipe(yaml.Lookup(fieldPath...))
 		}
 		if err != nil {
 			return err
 		}
 		if t != nil {
-			if err = applyToOneNode(target.Options, t, value); err != nil {
+			if err = setTargetValue(target.Options, t, value); err != nil {
 				return err
 			}
 		}
@@ -133,33 +86,13 @@ func applyToNode(node *yaml.RNode, value *yaml.RNode, target *types.TargetSelect
 	return nil
 }
 
-func applyToOneNode(options *types.FieldOptions, t *yaml.RNode, value *yaml.RNode) error {
-	if len(t.YNode().Content) == 0 {
-		if err := setTargetValue(options, t, value); err != nil {
-			return err
-		}
-		return nil
-	}
-
-	for _, scalarNode := range t.YNode().Content {
-		if options != nil && options.Create {
-			return fmt.Errorf("cannot use create option in a multi-value target")
-		}
-		rn := yaml.NewRNode(scalarNode)
-		if err := setTargetValue(options, rn, value); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
 func setTargetValue(options *types.FieldOptions, t *yaml.RNode, value *yaml.RNode) error {
-	value = value.Copy()
 	if options != nil && options.Delimiter != "" {
+
 		if t.YNode().Kind != yaml.ScalarNode {
 			return fmt.Errorf("delimiter option can only be used with scalar nodes")
 		}
+
 		tv := strings.Split(t.YNode().Value, options.Delimiter)
 		v := yaml.GetValue(value)
 		// TODO: Add a way to remove an element
@@ -173,14 +106,7 @@ func setTargetValue(options *types.FieldOptions, t *yaml.RNode, value *yaml.RNod
 		}
 		value.YNode().Value = strings.Join(tv, options.Delimiter)
 	}
-
-	if t.YNode().Kind == yaml.ScalarNode {
-		// For scalar, only copy the value (leave any type intact to auto-convert int->string or string->int)
-		t.YNode().Value = value.YNode().Value
-	} else {
-		t.SetYNode(value.YNode())
-	}
-
+	t.SetYNode(value.YNode())
 	return nil
 }
 
@@ -193,17 +119,16 @@ func getReplacement(nodes []*yaml.RNode, r *types.Replacement) (*yaml.RNode, err
 	if r.Source.FieldPath == "" {
 		r.Source.FieldPath = types.DefaultReplacementFieldPath
 	}
-	fieldPath := utils.SmarterPathSplitter(r.Source.FieldPath, ".")
+	fieldPath := strings.Split(r.Source.FieldPath, ".")
 
 	rn, err := source.Pipe(yaml.Lookup(fieldPath...))
 	if err != nil {
 		return nil, err
 	}
-	if rn.IsNilOrEmpty() {
-		return nil, fmt.Errorf("fieldPath `%s` is missing for replacement source %s", r.Source.FieldPath, r.Source.ResId)
+	if !rn.IsNilOrEmpty() {
+		return getRefinedValue(r.Source.Options, rn)
 	}
-
-	return getRefinedValue(r.Source.Options, rn)
+	return rn, nil
 }
 
 func getRefinedValue(options *types.FieldOptions, rn *yaml.RNode) (*yaml.RNode, error) {
@@ -227,23 +152,34 @@ func getRefinedValue(options *types.FieldOptions, rn *yaml.RNode) (*yaml.RNode,
 func selectSourceNode(nodes []*yaml.RNode, selector *types.SourceSelector) (*yaml.RNode, error) {
 	var matches []*yaml.RNode
 	for _, n := range nodes {
-		ids, err := utils.MakeResIds(n)
-		if err != nil {
-			return nil, err
-		}
-		for _, id := range ids {
-			if id.IsSelectedBy(selector.ResId) {
-				if len(matches) > 0 {
-					return nil, fmt.Errorf(
-						"multiple matches for selector %s", selector)
-				}
-				matches = append(matches, n)
-				break
+		if selector.KrmId.Match(getKrmId(n)) {
+			if len(matches) > 0 {
+				return nil, fmt.Errorf("more than one match for source %v", selector)
 			}
+			matches = append(matches, n)
 		}
 	}
 	if len(matches) == 0 {
-		return nil, fmt.Errorf("nothing selected by %s", selector)
+		return nil, fmt.Errorf("found no matches for source %v", selector)
 	}
 	return matches[0], nil
 }
+
+func getKrmId(n *yaml.RNode) *types.KrmId {
+	ns, err := n.GetNamespace()
+	if err != nil {
+		// Resource has no metadata (no apiVersion, kind, nor metadata field).
+		// In this case, it cannot be selected.
+		return &types.KrmId{}
+	}
+	apiVersion := n.Field(yaml.APIVersionField)
+	var group, version string
+	if apiVersion != nil {
+		group, version = resid.ParseGroupVersion(yaml.GetValue(apiVersion.Value))
+	}
+	return &types.KrmId{
+		Gvk:       resid.Gvk{Group: group, Version: version, Kind: n.GetKind()},
+		Name:      n.GetName(),
+		Namespace: ns,
+	}
+}

api/filters/replicacount/replicacount.go

@@ -14,17 +14,9 @@ import (
 type Filter struct {
 	Replica   types.Replica   `json:"replica,omitempty" yaml:"replica,omitempty"`
 	FieldSpec types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
-
-	trackableSetter filtersutil.TrackableSetter
 }
 
 var _ kio.Filter = Filter{}
-var _ kio.TrackableFilter = &Filter{}
-
-// WithMutationTracker registers a callback which will be invoked each time a field is mutated
-func (rc *Filter) WithMutationTracker(callback func(key, value, tag string, node *yaml.RNode)) {
-	rc.trackableSetter.WithMutationTracker(callback)
-}
 
 func (rc Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	return kio.FilterAll(yaml.FilterFunc(rc.run)).Filter(nodes)
@@ -41,5 +33,5 @@ func (rc Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
 }
 
 func (rc Filter) set(node *yaml.RNode) error {
-	return rc.trackableSetter.SetEntry("", strconv.FormatInt(rc.Replica.Count, 10), yaml.NodeTagInt)(node)
+	return filtersutil.SetScalar(strconv.FormatInt(rc.Replica.Count, 10))(node)
 }

api/filters/replicacount/replicacount_test.go

@@ -7,17 +7,14 @@ import (
 	"github.com/stretchr/testify/assert"
 	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 func TestFilter(t *testing.T) {
-	mutationTrackerStub := filtertest_test.MutationTrackerStub{}
+
 	testCases := map[string]struct {
-		input                string
-		expected             string
-		filter               Filter
-		mutationTracker      func(key, value, tag string, node *yaml.RNode)
-		expectedSetValueArgs []filtertest_test.SetValueArg
+		input    string
+		expected string
+		filter   Filter
 	}{
 		"update field": {
 			input: `
@@ -164,44 +161,9 @@ spec:
 				FieldSpec: types.FieldSpec{Path: "spec/template/replicas"},
 			},
 		},
-		"mutation tracker": {
-			input: `
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: dep
-spec:
-  replicas: 5
-`,
-			expected: `
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: dep
-spec:
-  replicas: 42
-`,
-			filter: Filter{
-				Replica: types.Replica{
-					Name:  "dep",
-					Count: 42,
-				},
-				FieldSpec: types.FieldSpec{Path: "spec/replicas"},
-			},
-			mutationTracker: mutationTrackerStub.MutationTracker,
-			expectedSetValueArgs: []filtertest_test.SetValueArg{
-				{
-					Value:    "42",
-					Tag:      "!!int",
-					NodePath: []string{"spec", "replicas"},
-				},
-			},
-		},
 	}
 
 	for tn, tc := range testCases {
-		mutationTrackerStub.Reset()
-		tc.filter.WithMutationTracker(tc.mutationTracker)
 		t.Run(tn, func(t *testing.T) {
 			if !assert.Equal(t,
 				strings.TrimSpace(tc.expected),
@@ -209,7 +171,6 @@ spec:
 					filtertest_test.RunFilter(t, tc.input, tc.filter))) {
 				t.FailNow()
 			}
-			assert.Equal(t, tc.expectedSetValueArgs, mutationTrackerStub.SetValueArgs())
 		})
 	}
 }

api/filters/suffix/doc.go

@@ -1,6 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package suffix contains a kio.Filter implementation of the kustomize
-// SuffixTransformer.
-package suffix

api/filters/suffix/example_test.go

@@ -1,47 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package suffix_test
-
-import (
-	"bytes"
-	"log"
-	"os"
-
-	"sigs.k8s.io/kustomize/api/filters/suffix"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/kio"
-)
-
-func ExampleFilter() {
-	err := kio.Pipeline{
-		Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(`
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-`)}},
-		Filters: []kio.Filter{suffix.Filter{
-			Suffix: "-baz", FieldSpec: types.FieldSpec{Path: "metadata/name"}}},
-		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-baz
-	// ---
-	// apiVersion: example.com/v1
-	// kind: Bar
-	// metadata:
-	//   name: instance-baz
-}

api/filters/suffix/suffix.go

@@ -1,50 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package suffix
-
-import (
-	"fmt"
-
-	"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"
-)
-
-// Filter applies resource name suffix's using the fieldSpecs
-type Filter struct {
-	Suffix string `json:"suffix,omitempty" yaml:"suffix,omitempty"`
-
-	FieldSpec types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
-
-	trackableSetter filtersutil.TrackableSetter
-}
-
-var _ kio.Filter = Filter{}
-var _ kio.TrackableFilter = &Filter{}
-
-// WithMutationTracker registers a callback which will be invoked each time a field is mutated
-func (f *Filter) WithMutationTracker(callback func(key, value, tag string, node *yaml.RNode)) {
-	f.trackableSetter.WithMutationTracker(callback)
-}
-
-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.evaluateField,
-		CreateKind: yaml.ScalarNode, // Name is a ScalarNode
-		CreateTag:  yaml.NodeTagString,
-	})
-	return node, err
-}
-
-func (f Filter) evaluateField(node *yaml.RNode) error {
-	return f.trackableSetter.SetScalar(fmt.Sprintf(
-		"%s%s", node.YNode().Value, f.Suffix))(node)
-}

api/filters/suffix/suffix_test.go

@@ -1,154 +0,0 @@
-// Copyright 2021 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package suffix_test
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"sigs.k8s.io/kustomize/api/filters/suffix"
-	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-var mutationTrackerStub = filtertest_test.MutationTrackerStub{}
-
-var tests = map[string]TestCase{
-	"suffix": {
-		input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-`,
-		expected: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance-foo
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance-foo
-`,
-		filter: suffix.Filter{
-			Suffix:    "-foo",
-			FieldSpec: types.FieldSpec{Path: "metadata/name"},
-		},
-	},
-
-	"data-fieldspecs": {
-		input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-a:
-  b:
-    c: d
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-a:
-  b:
-    c: d
-`,
-		expected: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
-a:
-  b:
-    c: d-foo
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-a:
-  b:
-    c: d-foo
-`,
-		filter: suffix.Filter{
-			Suffix:    "-foo",
-			FieldSpec: types.FieldSpec{Path: "a/b/c"},
-		},
-	},
-
-	"mutation tracker": {
-		input: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance
-`,
-		expected: `
-apiVersion: example.com/v1
-kind: Foo
-metadata:
-  name: instance-foo
----
-apiVersion: example.com/v1
-kind: Bar
-metadata:
-  name: instance-foo
-`,
-		filter: suffix.Filter{
-			Suffix:    "-foo",
-			FieldSpec: types.FieldSpec{Path: "metadata/name"},
-		},
-		mutationTracker: mutationTrackerStub.MutationTracker,
-		expectedSetValueArgs: []filtertest_test.SetValueArg{
-			{
-				Value:    "instance-foo",
-				NodePath: []string{"metadata", "name"},
-			},
-			{
-				Value:    "instance-foo",
-				NodePath: []string{"metadata", "name"},
-			},
-		},
-	},
-}
-
-type TestCase struct {
-	input                string
-	expected             string
-	filter               suffix.Filter
-	mutationTracker      func(key, value, tag string, node *yaml.RNode)
-	expectedSetValueArgs []filtertest_test.SetValueArg
-}
-
-func TestFilter(t *testing.T) {
-	for name := range tests {
-		mutationTrackerStub.Reset()
-		test := tests[name]
-		test.filter.WithMutationTracker(test.mutationTracker)
-		t.Run(name, func(t *testing.T) {
-			if !assert.Equal(t,
-				strings.TrimSpace(test.expected),
-				strings.TrimSpace(
-					filtertest_test.RunFilter(t, test.input, test.filter))) {
-				t.FailNow()
-			}
-			assert.Equal(t, test.expectedSetValueArgs, mutationTrackerStub.SetValueArgs())
-		})
-	}
-}

api/filters/valueadd/valueadd.go

@@ -6,7 +6,7 @@ package valueadd
 import (
 	"strings"
 
-	"sigs.k8s.io/kustomize/kyaml/filesys"
+	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )

api/go.mod

@@ -3,14 +3,16 @@ module sigs.k8s.io/kustomize/api
 go 1.16
 
 require (
-	github.com/evanphx/json-patch v4.11.0+incompatible
+	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/google/shlex v0.0.0-20191202100458-e7afc7fbc510
 	github.com/imdario/mergo v0.3.5
 	github.com/pkg/errors v0.9.1
-	github.com/stretchr/testify v1.7.0
+	github.com/stretchr/testify v1.4.0
 	gopkg.in/yaml.v2 v2.4.0
-	k8s.io/kube-openapi v0.0.0-20210421082810-95288971da7e
-	sigs.k8s.io/kustomize/kyaml v0.13.6
+	sigs.k8s.io/kustomize/kyaml v0.10.17
 	sigs.k8s.io/yaml v1.2.0
 )
+
+replace sigs.k8s.io/kustomize/kyaml => ../kyaml

api/go.sum

@@ -1,644 +1,268 @@
 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=
-cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
-cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
-cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
-cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
-cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
-cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
-cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
-cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
-cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
-cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
-cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
-cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
-cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
-cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
-cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
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-cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
-cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
-cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
-cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
-cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
-cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
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-cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
-cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
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-google.golang.org/genproto v0.0.0-20201214200347-8c77b98c765d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210222152913-aa3ee6e6a81c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210303154014-9728d6b83eeb/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210310155132-4ce2db91004e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210319143718-93e7006c17a6/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20210402141018-6c239bbf2bb1/go.mod h1:9lPAdzaEmUacj36I+k7YKbEc5CXzPIeORRgDAUOu28A=
-google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
-google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
-google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
-google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
-google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
-google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
-google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.31.1/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
-google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
-google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
-google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
-google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
-google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
-google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
-google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
-google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
-google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
-google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
-google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+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=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 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/ini.v1 v1.62.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
+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 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+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=
-gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/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 v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
-k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE=
-k8s.io/kube-openapi v0.0.0-20210421082810-95288971da7e h1:KLHHjkdQFomZy8+06csTWZ0m1343QqxZhR2LJ1OxCYM=
-k8s.io/kube-openapi v0.0.0-20210421082810-95288971da7e/go.mod h1:vHXdDvt9+2spS2Rx9ql3I8tycm3H9FDfdUoIuKCefvw=
-rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
-rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
-rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-sigs.k8s.io/kustomize/kyaml v0.13.6 h1:eF+wsn4J7GOAXlvajv6OknSunxpcOBQQqsnPxObtkGs=
-sigs.k8s.io/kustomize/kyaml v0.13.6/go.mod h1:yHP031rn1QX1lr/Xd934Ri/xdVNG8BE2ECa78Ht/kEg=
-sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=

api/image/image.go

@@ -14,53 +14,37 @@ func IsImageMatched(s, t string) bool {
 	// Tag values are limited to [a-zA-Z0-9_.{}-].
 	// Some tools like Bazel rules_k8s allow tag patterns with {} characters.
 	// More info: https://github.com/bazelbuild/rules_k8s/pull/423
-	pattern, _ := regexp.Compile("^" + t + "(:[a-zA-Z0-9_.{}-]*)?(@sha256:[a-zA-Z0-9_.{}-]*)?$")
+	pattern, _ := regexp.Compile("^" + t + "(@sha256)?(:[a-zA-Z0-9_.{}-]*)?$")
 	return pattern.MatchString(s)
 }
 
 // Split separates and returns the name and tag parts
 // from the image string using either colon `:` or at `@` separators.
-// image reference pattern: [[host[:port]/]component/]component[:tag][@digest]
-func Split(imageName string) (name string, tag string, digest string) {
+// Note that the returned tag keeps its separator.
+func Split(imageName string) (name string, tag string) {
 	// check if image name contains a domain
 	// if domain is present, ignore domain and check for `:`
-	searchName := imageName
-	slashIndex := strings.Index(imageName, "/")
-	if slashIndex > 0 {
-		searchName = imageName[slashIndex:]
+	ic := -1
+	if slashIndex := strings.Index(imageName, "/"); slashIndex < 0 {
+		ic = strings.LastIndex(imageName, ":")
 	} else {
-		slashIndex = 0
+		lastIc := strings.LastIndex(imageName[slashIndex:], ":")
+		// set ic only if `:` is present
+		if lastIc > 0 {
+			ic = slashIndex + lastIc
+		}
+	}
+	ia := strings.LastIndex(imageName, "@")
+	if ic < 0 && ia < 0 {
+		return imageName, ""
 	}
 
-	id := strings.Index(searchName, "@")
-	ic := strings.Index(searchName, ":")
-
-	// no tag or digest
-	if ic < 0 && id < 0 {
-		return imageName, "", ""
+	i := ic
+	if ia > 0 {
+		i = ia
 	}
 
-	// digest only
-	if id >= 0 && (id < ic || ic < 0) {
-		id += slashIndex
-		name = imageName[:id]
-		digest = strings.TrimPrefix(imageName[id:], "@")
-		return name, "", digest
-	}
-
-	// tag and digest
-	if id >= 0 && ic >= 0 {
-		id += slashIndex
-		ic += slashIndex
-		name = imageName[:ic]
-		tag = strings.TrimPrefix(imageName[ic:id], ":")
-		digest = strings.TrimPrefix(imageName[id:], "@")
-		return name, tag, digest
-	}
-
-	// tag only
-	ic += slashIndex
-	name = imageName[:ic]
-	tag = strings.TrimPrefix(imageName[ic:], ":")
-	return name, tag, ""
+	name = imageName[:i]
+	tag = imageName[i:]
+	return
 }

api/image/image_test.go

@@ -23,23 +23,11 @@ func TestIsImageMatched(t *testing.T) {
 			isMatched: true,
 		},
 		{
-			testName:  "name is match with tag",
+			testName:  "name is match",
 			value:     "nginx:12345",
 			name:      "nginx",
 			isMatched: true,
 		},
-		{
-			testName:  "name is match with digest",
-			value:     "nginx@sha256:xyz",
-			name:      "nginx",
-			isMatched: true,
-		},
-		{
-			testName:  "name is match with tag and digest",
-			value:     "nginx:12345@sha256:xyz",
-			name:      "nginx",
-			isMatched: true,
-		},
 		{
 			testName:  "name is not a match",
 			value:     "apache:12345",
@@ -61,65 +49,32 @@ func TestSplit(t *testing.T) {
 		value    string
 		name     string
 		tag      string
-		digest   string
 	}{
 		{
 			testName: "no tag",
 			value:    "nginx",
 			name:     "nginx",
 			tag:      "",
-			digest:   "",
 		},
 		{
 			testName: "with tag",
 			value:    "nginx:1.2.3",
 			name:     "nginx",
-			tag:      "1.2.3",
-			digest:   "",
+			tag:      ":1.2.3",
 		},
 		{
 			testName: "with digest",
-			value:    "nginx@sha256:12345",
+			value:    "nginx@12345",
 			name:     "nginx",
-			tag:      "",
-			digest:   "sha256:12345",
-		},
-		{
-			testName: "with tag and digest",
-			value:    "nginx:1.2.3@sha256:12345",
-			name:     "nginx",
-			tag:      "1.2.3",
-			digest:   "sha256:12345",
-		},
-		{
-			testName: "with domain",
-			value:    "docker.io/nginx:1.2.3",
-			name:     "docker.io/nginx",
-			tag:      "1.2.3",
-			digest:   "",
-		},
-		{
-			testName: "with domain and port",
-			value:    "foo.com:443/nginx:1.2.3",
-			name:     "foo.com:443/nginx",
-			tag:      "1.2.3",
-			digest:   "",
-		},
-		{
-			testName: "with domain, port, tag and digest",
-			value:    "foo.com:443/nginx:1.2.3@sha256:12345",
-			name:     "foo.com:443/nginx",
-			tag:      "1.2.3",
-			digest:   "sha256:12345",
+			tag:      "@12345",
 		},
 	}
 
 	for _, tc := range testCases {
 		t.Run(tc.testName, func(t *testing.T) {
-			name, tag, digest := Split(tc.value)
+			name, tag := Split(tc.value)
 			assert.Equal(t, tc.name, name)
 			assert.Equal(t, tc.tag, tag)
-			assert.Equal(t, tc.digest, digest)
 		})
 	}
 }

api/internal/accumulator/loadconfigfromcrds.go

@@ -7,13 +7,13 @@ import (
 	"encoding/json"
 	"strings"
 
+	"github.com/go-openapi/spec"
 	"github.com/pkg/errors"
-	"k8s.io/kube-openapi/pkg/validation/spec"
+	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
+	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filesys"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 	"sigs.k8s.io/yaml"
 )
 
@@ -178,12 +178,9 @@ func loadCrdIntoConfig(
 			}
 		}
 		if property.Ref.GetURL() != nil {
-			err = loadCrdIntoConfig(
+			loadCrdIntoConfig(
 				theConfig, theGvk, theMap,
 				property.Ref.String(), append(path, propName))
-			if err != nil {
-				return
-			}
 		}
 	}
 	return nil

api/internal/accumulator/loadconfigfromcrds_test.go

@@ -7,13 +7,12 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/stretchr/testify/require"
+	"sigs.k8s.io/kustomize/api/filesys"
 	. "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"
-	"sigs.k8s.io/kustomize/kyaml/filesys"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 )
 
 // This defines two CRD's:  Bee and MyKind.
@@ -163,13 +162,16 @@ func TestLoadCRDs(t *testing.T) {
 	}
 
 	fSys := filesys.MakeFsInMemory()
-	err := fSys.WriteFile("/testpath/crd.json", []byte(crdContent))
-	require.NoError(t, err)
+	fSys.WriteFile("/testpath/crd.json", []byte(crdContent))
 	ldr, err := loader.NewLoader(loader.RestrictionRootOnly, "/testpath", fSys)
-	require.NoError(t, err)
+	if err != nil {
+		t.Fatalf("unexpected error:%v", err)
+	}
 
 	actualTc, err := LoadConfigFromCRDs(ldr, []string{"crd.json"})
-	require.NoError(t, err)
+	if err != nil {
+		t.Fatalf("unexpected error:%v", err)
+	}
 	if !reflect.DeepEqual(actualTc, expectedTc) {
 		t.Fatalf("expected\n %v\n but got\n %v\n", expectedTc, actualTc)
 	}

api/internal/accumulator/namereferencetransformer.go

@@ -11,7 +11,6 @@ import (
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 )
 
 type nameReferenceTransformer struct {
@@ -52,10 +51,7 @@ func (t *nameReferenceTransformer) Transform(m resmap.ResMap) error {
 	fMap := t.determineFilters(m.Resources())
 	debug(fMap)
 	for r, fList := range fMap {
-		c, err := m.SubsetThatCouldBeReferencedByResource(r)
-		if err != nil {
-			return err
-		}
+		c := m.SubsetThatCouldBeReferencedByResource(r)
 		for _, f := range fList {
 			f.Referrer = r
 			f.ReferralCandidates = c
@@ -113,18 +109,11 @@ func debug(fMap filterMap) {
 // 'spec/scaleTargetRef/name' field. Return a filter that can do that.
 func (t *nameReferenceTransformer) determineFilters(
 	resources []*resource.Resource) (fMap filterMap) {
-
-	// We cache the resource OrgId values because they don't change and otherwise are very visible in a memory pprof
-	resourceOrgIds := make([]resid.ResId, len(resources))
-	for i, resource := range resources {
-		resourceOrgIds[i] = resource.OrgId()
-	}
-
 	fMap = make(filterMap)
 	for _, backReference := range t.backRefs {
 		for _, referrerSpec := range backReference.Referrers {
-			for i, res := range resources {
-				if resourceOrgIds[i].IsSelected(&referrerSpec.Gvk) {
+			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) {

api/internal/accumulator/namereferencetransformer_test.go

@@ -9,9 +9,9 @@ import (
 
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/api/provider"
+	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	resmaptest_test "sigs.k8s.io/kustomize/api/testutils/resmaptest"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 )
 
 const notEqualErrFmt = "expected (self) doesn't match actual (other): %v"
@@ -520,10 +520,19 @@ func TestNameReferenceUnhappyRun(t *testing.T) {
 						},
 					},
 				}).ResMap(),
-			expectedErr: `updating name reference in 'rules/resourceNames' field of 'ClusterRole.v1.rbac.authorization.k8s.io/cr.[noNs]': ` +
-				`considering field 'rules/resourceNames' of object ClusterRole.v1.rbac.authorization.k8s.io/cr.[noNs]: visit traversal on ` +
-				`path: [resourceNames]: path config error; no 'name' field in node`,
-		},
+			expectedErr: `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)
@@ -876,9 +885,9 @@ func TestNameReferenceClusterWide(t *testing.T) {
 			}).ResMap()
 
 	clusterRoleId := resid.NewResId(
-		resid.NewGvk("rbac.authorization.k8s.io", "v1", "ClusterRole"), modifiedname)
+		resid.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRole"}, modifiedname)
 	clusterRoleBindingId := resid.NewResId(
-		resid.NewGvk("rbac.authorization.k8s.io", "v1", "ClusterRoleBinding"), modifiedname)
+		resid.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRoleBinding"}, modifiedname)
 	clusterRole, _ := expected.GetByCurrentId(clusterRoleId)
 	clusterRole.AppendRefBy(clusterRoleBindingId)
 
@@ -888,9 +897,7 @@ func TestNameReferenceClusterWide(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
-	expected.RemoveBuildAnnotations()
 	m.RemoveBuildAnnotations()
-
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
 		t.Fatalf(notEqualErrFmt, err)
 	}
@@ -1005,11 +1012,9 @@ func TestNameReferenceNamespaceTransformation(t *testing.T) {
 			}).ResMap()
 
 	clusterRoleId := resid.NewResId(
-		resid.NewGvk("rbac.authorization.k8s.io", "v1", "ClusterRole"),
-		modifiedname)
+		resid.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRole"}, modifiedname)
 	clusterRoleBindingId := resid.NewResId(
-		resid.NewGvk("rbac.authorization.k8s.io", "v1", "ClusterRoleBinding"),
-		modifiedname)
+		resid.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRoleBinding"}, modifiedname)
 	clusterRole, _ := expected.GetByCurrentId(clusterRoleId)
 	clusterRole.AppendRefBy(clusterRoleBindingId)
 

api/internal/accumulator/refvartransformer_test.go

@@ -7,10 +7,10 @@ import (
 	"reflect"
 	"testing"
 
+	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	resmaptest_test "sigs.k8s.io/kustomize/api/testutils/resmaptest"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 )
 
 func TestRefVarTransformer(t *testing.T) {
@@ -120,7 +120,15 @@ func TestRefVarTransformer(t *testing.T) {
 							"slice": []interface{}{5}, // noticeably *not* a []string
 						}}).ResMap(),
 			},
-			errMessage: `considering field 'data/slice' of object ConfigMap.v1.[noGrp]/cm1.[noNs]: invalid value type expect a string`,
+			errMessage: `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{

api/internal/accumulator/resaccumulator.go

@@ -9,9 +9,9 @@ import (
 	"strings"
 
 	"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/types"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 )
 
 // ResAccumulator accumulates resources and the rules
@@ -72,7 +72,7 @@ func (ra *ResAccumulator) MergeVars(incoming []types.Var) error {
 	for _, v := range incoming {
 		targetId := resid.NewResIdWithNamespace(v.ObjRef.GVK(), v.ObjRef.Name, v.ObjRef.Namespace)
 		idMatcher := targetId.GvknEquals
-		if targetId.Namespace != "" || targetId.IsClusterScoped() {
+		if targetId.Namespace != "" || !targetId.IsNamespaceableKind() {
 			// Preserve backward compatibility. An empty namespace means
 			// wildcard search on the namespace hence we still use GvknEquals
 			idMatcher = targetId.Equals
@@ -107,7 +107,6 @@ func (ra *ResAccumulator) findVarValueFromResources(v types.Var) (interface{}, e
 	for _, res := range ra.resMap.Resources() {
 		for _, varName := range res.GetRefVarNames() {
 			if varName == v.Name {
-				//nolint: staticcheck
 				s, err := res.GetFieldValue(v.FieldRef.FieldPath)
 				if err != nil {
 					return "", fmt.Errorf(
@@ -168,23 +167,3 @@ func (ra *ResAccumulator) FixBackReferences() (err error) {
 	return ra.Transform(
 		newNameReferenceTransformer(ra.tConfig.NameReference))
 }
-
-// Intersection drops the resources which "other" does not have.
-func (ra *ResAccumulator) Intersection(other resmap.ResMap) error {
-	for _, curId := range ra.resMap.AllIds() {
-		toDelete := true
-		for _, otherId := range other.AllIds() {
-			if otherId == curId {
-				toDelete = false
-				break
-			}
-		}
-		if toDelete {
-			err := ra.resMap.Remove(curId)
-			if err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}

api/internal/accumulator/resaccumulator_test.go

@@ -10,15 +10,14 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/stretchr/testify/require"
 	. "sigs.k8s.io/kustomize/api/internal/accumulator"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
 	"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"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/resid"
 )
 
 func makeResAccumulator(t *testing.T) *ResAccumulator {
@@ -225,26 +224,20 @@ func TestResolveVarConflicts(t *testing.T) {
 	// create accumulators holding apparently conflicting vars that are not
 	// actually in conflict because they point to the same concrete value.
 	rm0 := resmap.New()
-	err := rm0.Append(rf.FromMap(fooAws))
-	require.NoError(t, err)
+	rm0.Append(rf.FromMap(fooAws))
 	ac0 := MakeEmptyAccumulator()
-	err = ac0.AppendAll(rm0)
-	require.NoError(t, err)
-	err = ac0.MergeVars([]types.Var{varFoo})
-	require.NoError(t, err)
+	ac0.AppendAll(rm0)
+	ac0.MergeVars([]types.Var{varFoo})
 
 	rm1 := resmap.New()
-	err = rm1.Append(rf.FromMap(barAws))
-	require.NoError(t, err)
+	rm1.Append(rf.FromMap(barAws))
 	ac1 := MakeEmptyAccumulator()
-	err = ac1.AppendAll(rm1)
-	require.NoError(t, err)
-	err = ac1.MergeVars([]types.Var{varBar})
-	require.NoError(t, err)
+	ac1.AppendAll(rm1)
+	ac1.MergeVars([]types.Var{varBar})
 
 	// validate that two vars of the same name which reference the same concrete
 	// value do not produce a conflict.
-	err = ac0.MergeAccumulator(ac1)
+	err := ac0.MergeAccumulator(ac1)
 	if err == nil {
 		t.Fatalf("see bug gh-1600")
 	}
@@ -253,13 +246,10 @@ func TestResolveVarConflicts(t *testing.T) {
 	// two above (because it contains a variable whose name is used in the other
 	// accumulators AND whose concrete values are different).
 	rm2 := resmap.New()
-	err = rm2.Append(rf.FromMap(barGcp))
-	require.NoError(t, err)
+	rm2.Append(rf.FromMap(barGcp))
 	ac2 := MakeEmptyAccumulator()
-	err = ac2.AppendAll(rm2)
-	require.NoError(t, err)
-	err = ac2.MergeVars([]types.Var{varBar})
-	require.NoError(t, err)
+	ac2.AppendAll(rm2)
+	ac2.MergeVars([]types.Var{varBar})
 	err = ac1.MergeAccumulator(ac2)
 	if err == nil {
 		t.Fatalf("dupe vars w/ different concrete values should conflict")
@@ -362,10 +352,10 @@ func TestResolveVarsWithNoambiguation(t *testing.T) {
 			"metadata": map[string]interface{}{
 				"name": "sub-backendOne",
 				"annotations": map[string]interface{}{
-					"internal.config.kubernetes.io/previousKinds":      "Service",
-					"internal.config.kubernetes.io/previousNames":      "backendOne",
-					"internal.config.kubernetes.io/previousNamespaces": "default",
-					"internal.config.kubernetes.io/prefixes":           "sub-",
+					"config.kubernetes.io/previousKinds":      "Service",
+					"config.kubernetes.io/previousNames":      "backendOne",
+					"config.kubernetes.io/previousNamespaces": "default",
+					"config.kubernetes.io/prefixes":           "sub-",
 				},
 			}}).ResMap()
 

api/internal/builtins/IAMPolicyGenerator.go

@@ -1,33 +0,0 @@
-// Code generated by pluginator on IAMPolicyGenerator; DO NOT EDIT.
-// pluginator {unknown  1970-01-01T00:00:00Z  }
-
-package builtins
-
-import (
-	"sigs.k8s.io/kustomize/api/filters/iampolicygenerator"
-	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/yaml"
-)
-
-type IAMPolicyGeneratorPlugin struct {
-	types.IAMPolicyGeneratorArgs
-}
-
-func (p *IAMPolicyGeneratorPlugin) Config(h *resmap.PluginHelpers, config []byte) (err error) {
-	p.IAMPolicyGeneratorArgs = types.IAMPolicyGeneratorArgs{}
-	err = yaml.Unmarshal(config, p)
-	return
-}
-
-func (p *IAMPolicyGeneratorPlugin) Generate() (resmap.ResMap, error) {
-	r := resmap.New()
-	err := r.ApplyFilter(iampolicygenerator.Filter{
-		IAMPolicyGenerator: p.IAMPolicyGeneratorArgs,
-	})
-	return r, err
-}
-
-func NewIAMPolicyGeneratorPlugin() resmap.GeneratorPlugin {
-	return &IAMPolicyGeneratorPlugin{}
-}

api/internal/builtins/ImageTagTransformer.go

@@ -1,41 +0,0 @@
-// Code generated by pluginator on ImageTagTransformer; DO NOT EDIT.
-// pluginator {unknown  1970-01-01T00:00:00Z  }
-
-package builtins
-
-import (
-	"sigs.k8s.io/kustomize/api/filters/imagetag"
-	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/yaml"
-)
-
-// Find matching image declarations and replace
-// the name, tag and/or digest.
-type ImageTagTransformerPlugin struct {
-	ImageTag   types.Image       `json:"imageTag,omitempty" yaml:"imageTag,omitempty"`
-	FieldSpecs []types.FieldSpec `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
-}
-
-func (p *ImageTagTransformerPlugin) Config(
-	_ *resmap.PluginHelpers, c []byte) (err error) {
-	p.ImageTag = types.Image{}
-	p.FieldSpecs = nil
-	return yaml.Unmarshal(c, p)
-}
-
-func (p *ImageTagTransformerPlugin) Transform(m resmap.ResMap) error {
-	if err := m.ApplyFilter(imagetag.LegacyFilter{
-		ImageTag: p.ImageTag,
-	}); err != nil {
-		return err
-	}
-	return m.ApplyFilter(imagetag.Filter{
-		ImageTag: p.ImageTag,
-		FsSlice:  p.FieldSpecs,
-	})
-}
-
-func NewImageTagTransformerPlugin() resmap.TransformerPlugin {
-	return &ImageTagTransformerPlugin{}
-}

api/internal/builtins/PrefixTransformer.go

@@ -1,96 +0,0 @@
-// Code generated by pluginator on PrefixTransformer; DO NOT EDIT.
-// pluginator {unknown  1970-01-01T00:00:00Z  }
-
-package builtins
-
-import (
-	"errors"
-
-	"sigs.k8s.io/kustomize/api/filters/prefix"
-	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/resid"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-// Add the given prefix to the field
-type PrefixTransformerPlugin struct {
-	Prefix     string        `json:"prefix,omitempty" yaml:"prefix,omitempty"`
-	FieldSpecs types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
-}
-
-// TODO: Make this gvk skip list part of the config.
-var prefixFieldSpecsToSkip = types.FsSlice{
-	{Gvk: resid.Gvk{Kind: "CustomResourceDefinition"}},
-	{Gvk: resid.Gvk{Group: "apiregistration.k8s.io", Kind: "APIService"}},
-	{Gvk: resid.Gvk{Kind: "Namespace"}},
-}
-
-func (p *PrefixTransformerPlugin) Config(
-	_ *resmap.PluginHelpers, c []byte) (err error) {
-	p.Prefix = ""
-	p.FieldSpecs = nil
-	err = yaml.Unmarshal(c, p)
-	if err != nil {
-		return
-	}
-	if p.FieldSpecs == nil {
-		return errors.New("fieldSpecs is not expected to be nil")
-	}
-	return
-}
-
-func (p *PrefixTransformerPlugin) Transform(m resmap.ResMap) error {
-	// Even if the Prefix is empty we want to proceed with the
-	// transformation. This allows to add contextual information
-	// to the resources (AddNamePrefix).
-	for _, r := range m.Resources() {
-		// TODO: move this test into the filter (i.e. make a better filter)
-		if p.shouldSkip(r.OrgId()) {
-			continue
-		}
-		id := r.OrgId()
-		// current default configuration contains
-		// only one entry: "metadata/name" with no GVK
-		for _, fs := range p.FieldSpecs {
-			// TODO: this is redundant to filter (but needed for now)
-			if !id.IsSelected(&fs.Gvk) {
-				continue
-			}
-			// TODO: move this test into the filter.
-			if fs.Path == "metadata/name" {
-				// "metadata/name" is the only field.
-				// this will add a prefix to the resource
-				// even if it is empty
-
-				r.AddNamePrefix(p.Prefix)
-				if p.Prefix != "" {
-					// TODO: There are multiple transformers that can change a resource's name, and each makes a call to
-					// StorePreviousID(). We should make it so that we only call StorePreviousID once per kustomization layer
-					// to avoid storing intermediate names between transformations, to prevent intermediate name conflicts.
-					r.StorePreviousId()
-				}
-			}
-			if err := r.ApplyFilter(prefix.Filter{
-				Prefix:    p.Prefix,
-				FieldSpec: fs,
-			}); err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func (p *PrefixTransformerPlugin) shouldSkip(id resid.ResId) bool {
-	for _, path := range prefixFieldSpecsToSkip {
-		if id.IsSelected(&path.Gvk) {
-			return true
-		}
-	}
-	return false
-}
-
-func NewPrefixTransformerPlugin() resmap.TransformerPlugin {
-	return &PrefixTransformerPlugin{}
-}

api/internal/builtins/ReplacementTransformer.go

@@ -1,78 +0,0 @@
-// Code generated by pluginator on ReplacementTransformer; DO NOT EDIT.
-// pluginator {unknown  1970-01-01T00:00:00Z  }
-
-package builtins
-
-import (
-	"fmt"
-	"reflect"
-
-	"sigs.k8s.io/kustomize/api/filters/replacement"
-	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/yaml"
-)
-
-// Replace values in targets with values from a source
-type ReplacementTransformerPlugin struct {
-	ReplacementList []types.ReplacementField `json:"replacements,omitempty" yaml:"replacements,omitempty"`
-	Replacements    []types.Replacement      `json:"omitempty" yaml:"omitempty"`
-}
-
-func (p *ReplacementTransformerPlugin) Config(
-	h *resmap.PluginHelpers, c []byte) (err error) {
-	p.ReplacementList = []types.ReplacementField{}
-	if err := yaml.Unmarshal(c, p); err != nil {
-		return err
-	}
-
-	for _, r := range p.ReplacementList {
-		if r.Path != "" && (r.Source != nil || len(r.Targets) != 0) {
-			return fmt.Errorf("cannot specify both path and inline replacement")
-		}
-		if r.Path != "" {
-			// load the replacement from the path
-			content, err := h.Loader().Load(r.Path)
-			if err != nil {
-				return err
-			}
-			// find if the path contains a a list of replacements or a single replacement
-			var replacement interface{}
-			err = yaml.Unmarshal(content, &replacement)
-			if err != nil {
-				return err
-			}
-			items := reflect.ValueOf(replacement)
-			switch items.Kind() {
-			case reflect.Slice:
-				repl := []types.Replacement{}
-				if err := yaml.Unmarshal(content, &repl); err != nil {
-					return err
-				}
-				p.Replacements = append(p.Replacements, repl...)
-			case reflect.Map:
-				repl := types.Replacement{}
-				if err := yaml.Unmarshal(content, &repl); err != nil {
-					return err
-				}
-				p.Replacements = append(p.Replacements, repl)
-			default:
-				return fmt.Errorf("unsupported replacement type encountered within replacement path: %v", items.Kind())
-			}
-		} else {
-			// replacement information is already loaded
-			p.Replacements = append(p.Replacements, r.Replacement)
-		}
-	}
-	return nil
-}
-
-func (p *ReplacementTransformerPlugin) Transform(m resmap.ResMap) (err error) {
-	return m.ApplyFilter(replacement.Filter{
-		Replacements: p.Replacements,
-	})
-}
-
-func NewReplacementTransformerPlugin() resmap.TransformerPlugin {
-	return &ReplacementTransformerPlugin{}
-}

api/internal/builtins/SuffixTransformer.go

@@ -1,96 +0,0 @@
-// Code generated by pluginator on SuffixTransformer; DO NOT EDIT.
-// pluginator {unknown  1970-01-01T00:00:00Z  }
-
-package builtins
-
-import (
-	"errors"
-
-	"sigs.k8s.io/kustomize/api/filters/suffix"
-	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/resid"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-// Add the given suffix to the field
-type SuffixTransformerPlugin struct {
-	Suffix     string        `json:"suffix,omitempty" yaml:"suffix,omitempty"`
-	FieldSpecs types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
-}
-
-// TODO: Make this gvk skip list part of the config.
-var suffixFieldSpecsToSkip = types.FsSlice{
-	{Gvk: resid.Gvk{Kind: "CustomResourceDefinition"}},
-	{Gvk: resid.Gvk{Group: "apiregistration.k8s.io", Kind: "APIService"}},
-	{Gvk: resid.Gvk{Kind: "Namespace"}},
-}
-
-func (p *SuffixTransformerPlugin) Config(
-	_ *resmap.PluginHelpers, c []byte) (err error) {
-	p.Suffix = ""
-	p.FieldSpecs = nil
-	err = yaml.Unmarshal(c, p)
-	if err != nil {
-		return
-	}
-	if p.FieldSpecs == nil {
-		return errors.New("fieldSpecs is not expected to be nil")
-	}
-	return
-}
-
-func (p *SuffixTransformerPlugin) Transform(m resmap.ResMap) error {
-	// Even if the Suffix is empty we want to proceed with the
-	// transformation. This allows to add contextual information
-	// to the resources (AddNameSuffix).
-	for _, r := range m.Resources() {
-		// TODO: move this test into the filter (i.e. make a better filter)
-		if p.shouldSkip(r.OrgId()) {
-			continue
-		}
-		id := r.OrgId()
-		// current default configuration contains
-		// only one entry: "metadata/name" with no GVK
-		for _, fs := range p.FieldSpecs {
-			// TODO: this is redundant to filter (but needed for now)
-			if !id.IsSelected(&fs.Gvk) {
-				continue
-			}
-			// TODO: move this test into the filter.
-			if fs.Path == "metadata/name" {
-				// "metadata/name" is the only field.
-				// this will add a suffix to the resource
-				// even if it is empty
-
-				r.AddNameSuffix(p.Suffix)
-				if p.Suffix != "" {
-					// TODO: There are multiple transformers that can change a resource's name, and each makes a call to
-					// StorePreviousID(). We should make it so that we only call StorePreviousID once per kustomization layer
-					// to avoid storing intermediate names between transformations, to prevent intermediate name conflicts.
-					r.StorePreviousId()
-				}
-			}
-			if err := r.ApplyFilter(suffix.Filter{
-				Suffix:    p.Suffix,
-				FieldSpec: fs,
-			}); err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func (p *SuffixTransformerPlugin) shouldSkip(id resid.ResId) bool {
-	for _, path := range suffixFieldSpecsToSkip {
-		if id.IsSelected(&path.Gvk) {
-			return true
-		}
-	}
-	return false
-}
-
-func NewSuffixTransformerPlugin() resmap.TransformerPlugin {
-	return &SuffixTransformerPlugin{}
-}

api/internal/crawl/README.md

@@ -0,0 +1,428 @@
+## What is this?
+### In short
+Be the GoDoc.org of k8s configuration files.
+
+### More explicitly
+Support k8s document indexing from open-source configurations in order to make
+it easy for people to learn to use a new feature, explore k8s configs in a
+central hub, and see some metrics about kustomize use.
+
+We want people to be able to support three main classes of queries:
+
+1. Structured document queries: how should I use the following fields
+   - Grace periods: `spec:template:spec:terminationGracePeriod`?
+   - Kustomize inline patch: `patches:patch`?
+
+2. Key value queries: how should I use this more specific use case of a
+   structure configuration.
+   - HorizontalPodAutoScalers: `kind=HorizontalPodAutoScaler`?
+   - Patches on StatefulSets: `patches:target:kind=StatefulSet`?
+
+3. Full text search: search the comments and the document text from any
+   type of k8s config file.
+
+## Road map
+There is a lot that can be added in order to improve the state of this
+application. Some more details along with general thoughts and comments can be
+found in the Roadmap.md file in this directory. This README contains only
+what can be considered as mostly complete and iterable parts of this project.
+
+## Running this project
+Everything is configured using kubernetes, so it should be easy for people to
+spin this up on any k8s cluster. Everything should just work (TM).
+
+The config files live in the `config` directory.
+
+```
+config
+├── base
+│   └── kustomization.yaml
+├── crawler
+│   ├── base
+│   │   ├── github_api_secret.txt
+│   │   └── kustomization.yaml
+│   ├── cronjob
+│   │   ├── cronjob.yaml
+│   │   └── kustomization.yaml
+│   └── job
+│       ├── job.yaml
+│       └── kustomization.yaml
+├── elastic
+│   └── ...
+├── redis
+│   ├── document_keystore
+│   │   ├── kustomization.yaml
+│   │   ├── redis.yaml
+│   │   └── service.yaml
+│   └── http_cache
+│       ├── kustomization.yaml
+│       ├── redis.yaml
+│       └── service.yaml
+├── webapp
+│   ├── backend
+│   │   ├── deployment.yaml
+│   │   ├── kustomization.yaml
+│   │   └── service.yaml
+│   └── frontend
+│       ├── deployment.yaml
+│       ├── kustomization.yaml
+│       └── service.yaml
+└── schema_files
+    └── kustomization_index
+        ├── es_index_mappings.json
+        └── es_index_settings.json
+```
+
+To get everything up and running you have to:
+
+1. Get some instance of elasticsearch working... and configure the
+   configmapGenerator in `config/base` to point to the right endpoint(s). The
+   configurations that need this value to be populated are the following:
+    - `config/crawler/cronjob` to run periodic crawls.
+    - `config/crawler/job` to run crawls on demand.
+    - `config/webapp/backend` to run the search server.
+
+2. Configure the elasticsearch indices:
+```
+kustomize build config/schema_files/kustomization_index | kubectl apply -f -
+```
+This will run a `curl` command that reads json data from a ConfigMap. This will
+setup the schema.  If you want to make more complex modifications to the
+schema, you should refer to the elastic docs to figure out whether the mapping
+can be added to the current index, or whether you will need to copy the
+existing index into a different one with the appropriate mappings. Modifications
+can be made by using the elasticsearch go library and writing a simple program,
+or it can be made with any http command to the appropriate server endpoint from
+within the cluster. Unfortunately I did not have the time to write a few helper
+tools for this. Feel free to contact me if you need help with modifying
+elasticsearch configs, I'm by no means an expert, but I can try to help.
+
+3. (Optional) run the redis http chache for the crawler:
+```
+kubectl apply -k config/redis/http_cache
+```
+  This will create a deployment for the cache, and a service. The crawler should
+  be configured to connect to the `http_cache` if it exists, but you can always
+  check the logs to make sure it connects, and that the identifiers match in the
+  crawler configuration and for the service endpoint.
+
+  The please be aware that the cache does not have a persistent volume.
+
+4. Configure the main redis instance:
+```
+kubectl apply -k config/redis/document_keystore
+```
+  This will create a StatefulSet with a volume of 4GiB for a redis instance.
+
+5. Get an access token from GitHub.
+
+To be able to kindly ask GitHub for it's data on k8s config files, you'll need
+to create an access\_token. From my understanding, this is the only way to do
+these code search queries (without first specifying a repository).
+
+To generate a token, go to your GitHub's account in Settings > Developer
+Settings > Personal access tokens. It should look like this.
+
+![GitHub Token 1](
+https://sigs.k8s.io/kustomize/internal/tools/pictures/github_token.png)
+
+From here you want to generate a new token and  have the following
+configuration:
+
+![GitHub Token 1](
+https://sigs.k8s.io/kustomize/internal/tools/pictures/token_config.png)
+
+If you have uses for any other data from this token, (org data, or something
+else) you can pick and choose, but be careful since it can grant this
+application access to your notifications, etc. However, any such extension
+is explicitly a non-goal and would not be maintained by this project.
+
+6. Launch the crawler:
+```
+kustomize build config/crawler/cronjob | kubectl apply -f -
+```
+This will periodically run the crawler every day according to the cron timing
+rules in the cronjob.yaml file.
+
+Instead, to get the crawler running now, you can run:
+```
+kustomize build config/crawler/cronjob | kubectl apply -f -
+```
+which will launch a non-periodic version of the crawler. It will take a few
+minutes for the crawler to split the search, but then config files should
+start to get populated within 20 minutes. It may take a while to do the
+first crawl, since it has to fetch rate-limited endpoints for each new file it
+finds. It should get significantly faster to update in the future.
+
+5. Launch the search backend
+```
+kustomize build config/webapp/backend | kubectl apply -f -
+```
+
+6. Launch the search frontend
+```
+kustomize build config/webapp/frontend | kubectl apply -f -
+```
+
+## Notes about the components
+
+### Elasticsearch
+I will add a basic working setup soon. I just did the lazy thing and used an
+already packaged solution. Most clouds will provide their own elastic
+environments, however, Elasticsearch is also working on their own
+implementation of a
+![k8s operator](https://www.elastic.co/elasticsearch-kubernetes), which might
+be worth checking out. Please note that it comes with its own license
+agreement.
+
+### Redis
+There are two Redis instances that are used in this application.
+
+One of them is configured to have on disk persistence, so make sure to have
+that set up in your kubernetes cluster. Also note that it is running on a
+single master node (i.e. it does not automatically shard keys to multiple head
+nodes as part of a highly available cluster). Since it's storing a sparse
+graph, I can't imagine this being much of an issue, but it's probably worth
+mentioning.
+
+The other Redis instance is running as a HTTP (RFC 7234) cache for etags from
+GitHub (or any other document store from which we could crawl/index). This one
+does not require full persistent storage on disk. The caching strategy is an
+LRU cache which is probably a good starting point. It might be worth it to
+investigate other cache policies, but I think LRU will work well since
+documents may or may not expire anyway, and the amount of memory allocated for
+keys is fairly large, so eviction of frequently used documents seems unlikely
+anyway.
+
+### Nginx + Angular
+There is a Dockerfile included for generating the container image with Nginx
+(using the default package) and adding all of the supporting compiled angular
+files. Any modifications to the code-base should be compatible with this setup,
+so all that's needed is to rebuild the container image, and possibly modify
+the image tags in the k8s file.
+
+### Supporting Go binaries
+There are a few go binaries that each have their own Dockerfile to build
+containers in which to run them on k8s, namely the crawler and the search
+service. Their configurations are not optimal (read: needs to be cleaned up),
+but they are functional.
+
+## Technical details
+
+### Overall design and implementations
+
+There are a few components that are all running together in order to get
+the overall application to work smoothly. This section will provide a brief
+overview of each component with the following sections going into more details.
+
+The overall structure is outlined in the following figure:
+![overview](
+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
+queries does two things, it first looks at the list of documents in
+elasticsearch and tries to update them. In doing so, it maintains a set of
+newly updated files to exclude them from other parts of the crawl.
+
+To find newly added documents, the crawler crawls any new dependencies
+introduced in the document updating step and it also queries GitHub for the
+most recently indexed kustomization.\* files. Each new file will be processed
+for efficient text queries and put into the document index. Any new dependency
+will also incur more crawl operations. Finally, a graphical
+representation of the documents and their dependencies is built in Redis to be
+used for graph algorithms such as PageRank and component analysis.
+
+#### Data library
+There are a few helper libaries for dealing with Elasticsearch, Redis and
+documents. This is not persistent, nor is it centralized. They act as small
+components that help to package common pieces of code. Eventually it may make
+sense to merge all of it together and make a proper persistent model around
+this while providing an external API for document insertion/deletion. But
+that is definitely out of scope in terms of getting this to run. However
+there are limitations with the current model in terms of minimizing the
+API surface for the different components of the application. For now this
+problem is mostly mitigated by having the query server only connected to
+a data node of the Elasticsearch cluster, but the problem of knowing what
+is accessible and what isn't is left to the programmer instead of being
+clearly and explicitly supported by the API.
+
+#### Server
+Uses the data library to communicate with the data store and answer queries.
+Processes the user entered text queries into somewhat optimized elasticsearch
+queries. Provides a few endpoints to get different metrics and to eventually
+allow for registration of remote repositories.
+
+This application has an exposing service in order to allow users of the
+application access to queries and the results.
+
+#### Nginx + Angular
+Communicates directly with the backend server to forward user queries and
+their results. Presents the results on an interface. It's still pretty simple
+looking but it seems usable (to me).
+
+
+### Crawling GitHub
+With the use of API keys, GitHub allows account owners to search for files
+using their API.
+
+The search endpoints allow for the use of metadata search
+that is fairly useful/powerful. For instance they provide a `filename:` keyword
+that permits us to look for `kustomization.yaml`, `kustomization.yml`, etc.
+This enables the fetching of a list of kustomization documents, from which
+we can get the actual content from another endpoint
+(raw.githubusercontent.com).
+
+However, the search API is fairly limited. There is a restriction to the number
+of documents that can be retrieved from this method. One possible way to
+mitigate this would be to periodically query GitHub for results, sorted by the
+last indexed time. This would allow you to collect most documents from this
+point forwards. The downside to this is that it may require a large number of
+requests to their API since you cannot know when new files will be added.
+Furthermore, there is a possibility that you would not be able to get all of
+files either, depending on the velocity of growth.
+
+The approach that was taken to mitigate this is to use the `filesize:` keyword
+and to shard the search space into contiguous buckets of appropriate size in
+order to get all of the documents. This is fairly efficient, since you can find
+a good enough way to shard the documents in
+`lg(max file size) * number of documents / 1000` API queries. Moreover, since
+queries are paginated with at most 100 results per query, this solution is
+competitive with getting the optimal (non-contiguous) sharding of result sets.
+Furthermore, filesize queries can be cached to minimize the total number of
+queries called to the API in order to shard the search space. This is done by
+querying for file size intervals that always start with 0..X and binary
+searching over the `filesize:` space. This will allow you to reuse a lot of
+queries when you're looking for the next range, since it is upper bounded and
+lower bounded to a smaller number of queries within a range that has also been
+queried. I think this is only true because filesizes are power law distributed,
+so searches will typically require less queries as they progress from left to
+right.
+
+However, this method in no way depends on intervals of the form 0..X, as
+the number of documents in the many intervals of the range search could be
+added together to also make this work. This approach just seemed simpler to
+implement, maintain, and debug so it was preferred.
+
+To get an idea of how efficient this method is, to shard the search space of
+7000 documents, it will only take ~90 API range queries which should only take
+a few minutes. While actually fetching the documents and their relevant
+metadata (creation time, etc.) will take several hours. Furthermore, this
+could be made more efficient if a prior distribution is approximated.
+This prior could be scaled to the number of documents that need to be fetched,
+and then finding a shard that has an adequate number of requests, will only
+take a few queries per shard. It could probably be supported in a constant
+number of size queries if the size of each shard is halved which shouldn't
+have terrible performance impact for the retrieval. However, there where
+more pressing things to implement. I might revisit this later.
+
+### Document Indexing and Processing
+In order to support simple text queries the structured documents must be
+processed in some way that makes searching them easy. The current method
+is to recursively traverse the map of configurations to generate each sub-path
+and each key-value pair for the leaf nodes of the recursion tree.
+
+However, note that this means that a document has to be valid yaml/json
+format in order for indexing to happen. The rest of the document is treated
+as mostly text and uses default text settings from Elasticsearch.
+
+What this means is that for the following yaml document:
+
+```yaml
+resources:
+- service.yaml
+- deployment.yaml
+
+configmapGenerator:
+- name: app-configuration
+  files:
+  - config.yaml
+
+patchesJson6902:
+- target:
+    version: v1
+    kind: StatefulSet
+    name: ss-name
+  path: ss-patch.yaml
+- target:
+    version: v1
+    kind: Deployment
+    name: dep-name
+  path: dep-patch.yaml
+```
+
+the following flattened structure would look like:
+```
+{
+  "identifiers": [
+    "resources",
+    "configmapGenerator",
+    "configmapGenerator:name",
+    "configmapGenerator:files",
+    "patchesJson6902",
+    "patchesJson6902:target",
+    "patchesJson6902:target:version",
+    "patchesJson6902:target:kind",
+    "patchesJson6902:target:name",
+    "patchesJson6902:path",
+  ],
+  "values": [
+    "resources=service.yaml",
+    "resources=deployment.yaml",
+    "configmapGenerator:name=app-configuration",
+    "configmapGenerator:files=config.yaml",
+    "patchesJson6902:target:version=v1",
+    "patchesJson6902:target:kind=StatefulSet",
+    "patchesJson6902:target:name=ss-name",
+    "patchesJson6902:path=ss-patch.yaml",
+    "patchesJson6902:target:kind=Deployment",
+    "patchesJson6902:target:name=dep-name",
+    "patchesJson6902:path=dep-patch.yaml",
+  ],
+  ...
+}
+```
+
+Note that unique paths and values are deduplicated.
+
+On the search side, exact queries will be prioritized, but the document paths
+and key=value pairs will also be analyzed with 3-grams to have some amount of
+fuzzy search. The reason that a Levenshtein-Distance was not used instead, is due
+to searching multiple fields at the same time, which is a use case where
+Elasticsearch does not support proper fuzzy searching.
+
+### Document Search
+Given a text query, each token is considered separately. Each token will be fed
+through a handful of analyzers on the Elasticsearch side, and will be compared
+with the reverse document index of each document fields. It will then determine
+the best matching documents. Text ordering is largely insignificant. This makes
+sense for the structured search, but may leave room for improvement for the
+text only search within the document.
+
+Each token _must_ be matched, so each white space character acts as a
+conjunction of individual queries. There are also ways of telling
+Elasticsearch that some things _should_ match, but I think for now it makes
+more sense to leave it as is.
+
+I think this behavior is sufficient to make the search feel fairly intuitive
+while providing support for fairly complex use cases.
+
+### Metrics Computation
+From the each kustomization document that is indexed, we can find it's
+resources that are publicly available. This includes other kustomizations.
+From this, we can build a directed graph of dependencies and reverse
+dependencies.
+
+This opens up the possibility to add a plethora of graph metrics that can
+give the project maintainers feedback and insight into how people are using
+their tools.
+
+Some of these are useful such as getting an idea for how large the dependency
+graphs actually grow in practice, and can be used to find _popular_
+kustomizations within the corpus. This lends itself to implementing PageRank
+to help bubble up popular results as good search results. I unfortunately
+did not have the time to implement the algorithm, but I do plan to revisit
+this sometime soon to add a few good and efficient implementations of useful
+graph algorithms that would be useful to have. See the Roadmap.md for a more
+complete list of features that could be added and how I think they could be
+implemented.

api/internal/crawl/ROADMAP.md

@@ -0,0 +1,176 @@
+# Road map and comments about this work
+
+From working on this project, here is a collection of thoughts and suggestions
+for future improvements. For any questions about this, or to request help do
+not hesitate to contact @damienr74 on GitHub, my email should be listed.
+
+I think this project has the potential for the K8s community to promote best
+practices. If this becomes popular, It could become easier to find
+*subjectively good* configurations. This can act as a way to guide newcomers
+to k8s config features that are easy to maintain, practical, and tested in some
+real world environment. However, a lot of work remains to be made if this is
+to happen. Extracting and ranking semantic-level information from the open
+source configuration files, is definitely not trivial, and will require a lot of
+though and consideration from the experts and the patterns that successful k8s
+project follow. This, is outside of my scope having little to no experience with
+k8s other than working on this project; however, if you have ideas I can
+probably suggest approaches in order to implement it, having worked a lot on
+this project.
+
+### Improving configuration files and container configs
+I did not have a lot of time to refactor the images to use configmaps for
+everything. This is a good thing to improve, should be fairly easy. Another
+thing that could make the user experience of launcing this could be to make all
+of the go utilities be subcommands to the same binary/container image. This
+would reduce the number of things that would have to be rebuilt, in order to get
+it running, and it would make the application (and its components) more self
+contained. (also has some disadvantages, so I'll let someone else decide.
+
+### Adding graph metrics
+From the Redis graph representation, we are able to run a multitude of graph
+algorithms (not all of which are implemented).
+
+The simplest one would be to run kruskal's algorithm to find connected
+components, and to compute graph metrics on each component. Here are some of the
+metrics that may be useful:
+
++ Average size and histograms of the sizes of each components.
+
++ Average size and histograms of the node with the highest in degree (rdeps) of
+  each component.
+
++ Average size and histograms of the number of repositories in a connected
+  component.
+
++ Any other metric that may be helpful to measure the scale of the kustomize
+  import graph.
+
+Another cool thing that may be helpful, would be to output the graph
+representation of deps/rdeps. This should be fairly easy to do with graphviz/dot
+so if anyone really wants this, I (damienr74) should be able to do it. Feel free
+to send me an email or to @ mention me in an issue.
+
+Note: dfs could also be used to find connected components, but I think union
+find is preferable, since the results can be stored and modified very
+efficiently. The only challenging part would be to implement deleting of edges
+and nodes from a component efficiently, but I know it is possible to support
+these operations with a union find structure.
+
+### Implementing PageRank
+The graph is set up to be able to efficiently compute PageRank since the edge
+weights are real valued, and the graph representation is sparse which means that
+it will fit in the memory of a single machine which will make the processing
+much more efficient.
+
+It could also be implemented as a Redis script, but I feel like there's
+something fundamentally wrong with implementing PageRank in lua. :P
+
+### Implement feature tracking
+Each day, when the crawler finds and indexes these structured documents,
+it should insert aggregate data to a separate index. This data could look like the
+following:
+
+```
+{
+  "kind": "kustomization",
+  "added_identifiers": [
+    {
+      "identifier": "some:new:k8s:feature",
+      "addedIn": [
+        "docID1",
+        "docID100",
+        "docID45",
+        ...
+      ],
+    },
+    {
+      "identifier": "another:k8s:feature",
+      "documents": [
+        ...
+      ],
+    },
+    ...
+  ]
+
+  "removed_identifiers": [
+    {
+      "identifier": "some:deprecated:field",
+      "documents": [
+        ...
+      ]
+    }
+  ]
+}
+```
+
+This would make it fairly easy to get deep insight into:
+- the speed at which things can effectively be deprecated.
+- how many people are migrating to current best practices.
+- how many documents get updated frequently/rarely.
+- detailed cross sections of growth/regression over conjunctions of features.
+- a world of possibilities.
+
+This is also something that I would be interested to work on sometime soon, so
+feel free to contact me (damienr74) or ask questions about this.
+
+As needed, it could be a good idea to also aggregate past data with a larger
+granularity. for instance each month, the past 30 days can be aggregated into
+weekish durations, And every year these weekly aggregations can be converted
+into monthly summaries depending on how much data this ends up being, and how
+much you want to pay for the storage of this data.
+
+Another cool way to compress this data would be to dynamically compress this
+data into a logarithmic number of buckets with decreasing granularity. But it
+seems like overkill for the amount of data that we'd likely get.
+
+### The UI probably needs a lot of work
+I'm not much of a UI/UX person and have little to no experience in developing
+these types of applications. If anyone with Angular experience wants to dive in
+and completely restructure the app to make the UI/UX/Code health better that
+would be greatly appreciated.
+
+### Query tuning probably still has to be adjusted
+I'm also not an expert in Elasticsearch. From what I could read in the docs,
+I think I've made sane decisions in converting user queries into meaningful
+Elasticsearch queries, but I'm sure there are a lot of improvements that remain
+to be done in order to get more accurate results.
+
+
+### Some other signals that indicate the presence of a good configuration file
+There are lots of heuristics that could be used to achieve this. Here are a
+couple in no particular order:
+
++ Penalize for the number of yaml `---` document splits. I'm not sure what the
+  general consensus is, but I think it's better to separate them, since it
+  makes git commits less noisy, it's a trivial transformation, and it makes
+  config files smaller. However, I can understand the argument that its somewhat
+  practical to keep an overall view of the configurations together (maybe).
+
++ Penalize the number of unique identifiers in a structured document. I think
+  this makes sense, since we don't want to have someone game the search engine
+  to match documents with every possible path from the k8s docs. PageRank might
+  help with this to some extent, but with a small corpus it would be fairly easy
+  to game.
+
++ Assign weights to the usefulness of certain fields. It would be good to
+  promote documents that use `keyRefFromConfigMap`, liveness probes, etc.
+
+These are the main ones I can think of, but I'm sure there are a *ton* of
+ways to achieve this.
+
+If the corpus gets large enough, we might even be able to use *blockchains*,
+*machine learning*, and maybe even self-driving cars.
+
+### Add more support for indexing of other k8s/kustomize related data
+One thing that jumps to mind is the use of kustomize plugins. They are easy
+to track since they all have an unused global variable: `var KustomizePluggin`
+it would be easy to run the pluginator command and generate godocs for each
+go file with this unique identifier.
+
+For the sake of completeness, here is the full GitHub query that we can use to
+find these:
+`api.github.com/search/code?q=var+KustomizePlugin+extension%3A.go&access_token=access_token`
+
+Godoc will not show much, since most packages will be using package main, but
+using pluginator we can make it a properly named package such that Godoc would
+actually generate the relevant documentation.