Add builtin NameTransformer plugin.

plugin/builtin/NameTransformer.go

@@ -0,0 +1,44 @@
+// +build plugin
+
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+//go:generate go run sigs.k8s.io/kustomize/cmd/pluginator
+package main
+
+import (
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/transformers"
+	"sigs.k8s.io/kustomize/pkg/transformers/config"
+	"sigs.k8s.io/yaml"
+)
+
+// Add the given prefix and suffix to the resource name.
+type plugin struct {
+	Prefix     string             `json:"prefix,omitempty" yaml:"prefix,omitempty"`
+	Suffix     string             `json:"suffix,omitempty" yaml:"suffix,omitempty"`
+	FieldSpecs []config.FieldSpec `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
+}
+
+var KustomizePlugin plugin
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, c []byte) (err error) {
+	p.Prefix = ""
+	p.Suffix = ""
+	p.FieldSpecs = nil
+	return yaml.Unmarshal(c, p)
+}
+
+func (p *plugin) Transform(m resmap.ResMap) error {
+	t, err := transformers.NewNamePrefixSuffixTransformer(
+		p.Prefix,
+		p.Suffix,
+		p.FieldSpecs,
+	)
+	if err != nil {
+		return err
+	}
+	return t.Transform(m)
+}

plugin/builtin/NameTransformer_test.go

@@ -0,0 +1,54 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package main_test
+
+import (
+	"testing"
+
+	"sigs.k8s.io/kustomize/internal/plugintest"
+	"sigs.k8s.io/kustomize/k8sdeps/kv/plugin"
+	"sigs.k8s.io/kustomize/pkg/kusttest"
+	"sigs.k8s.io/kustomize/pkg/loader"
+)
+
+func TestNameTransformer(t *testing.T) {
+	tc := plugintest_test.NewPluginTestEnv(t).Set()
+	defer tc.Reset()
+
+	tc.BuildGoPlugin(
+		"builtin", "", "NameTransformer")
+
+	th := kusttest_test.NewKustTestHarnessFull(
+		t, "/app", loader.RestrictionRootOnly,
+		plugin.ActivePluginConfig())
+
+	rm := th.LoadAndRunTransformer(`
+apiVersion: builtin
+kind: NameTransformer
+metadata:
+  name: notImportantHere
+prefix: baked-
+suffix: -pie
+fieldSpecs:
+  - path: metadata/name
+`, `
+apiVersion: v1
+kind: Service
+metadata:
+  name: apple
+spec:
+  ports:
+  - port: 7002
+`)
+
+	th.AssertActualEqualsExpected(rm, `
+apiVersion: v1
+kind: Service
+metadata:
+  name: baked-apple-pie
+spec:
+  ports:
+  - port: 7002
+`)
+}

plugin/builtingen/NameTransformer.go

@@ -0,0 +1,41 @@
+// Code generated by pluginator on NameTransformer; DO NOT EDIT.
+package builtingen
+
+import (
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/transformers"
+	"sigs.k8s.io/kustomize/pkg/transformers/config"
+	"sigs.k8s.io/yaml"
+)
+
+// Add the given prefix and suffix to the resource name.
+type NameTransformerPlugin struct {
+	Prefix     string             `json:"prefix,omitempty" yaml:"prefix,omitempty"`
+	Suffix     string             `json:"suffix,omitempty" yaml:"suffix,omitempty"`
+	FieldSpecs []config.FieldSpec `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
+}
+
+func NewNameTransformerPlugin() *NameTransformerPlugin {
+  return &NameTransformerPlugin{}
+}
+
+func (p *NameTransformerPlugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, c []byte) (err error) {
+	p.Prefix = ""
+	p.Suffix = ""
+	p.FieldSpecs = nil
+	return yaml.Unmarshal(c, p)
+}
+
+func (p *NameTransformerPlugin) Transform(m resmap.ResMap) error {
+	t, err := transformers.NewNamePrefixSuffixTransformer(
+		p.Prefix,
+		p.Suffix,
+		p.FieldSpecs,
+	)
+	if err != nil {
+		return err
+	}
+	return t.Transform(m)
+}