mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-06-12 09:24:23 +00:00
108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package transformers
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"log"
|
|
|
|
"sigs.k8s.io/kustomize/pkg/gvk"
|
|
"sigs.k8s.io/kustomize/pkg/resmap"
|
|
"sigs.k8s.io/kustomize/pkg/transformers/config"
|
|
)
|
|
|
|
// nameSuffixTransformer contains the suffix and the FieldSpecs
|
|
// for each field needing a name suffix.
|
|
type nameSuffixTransformer struct {
|
|
suffix string
|
|
fieldSpecsToUse []config.FieldSpec
|
|
fieldSpecsToSkip []config.FieldSpec
|
|
}
|
|
|
|
var _ Transformer = &nameSuffixTransformer{}
|
|
|
|
var suffixFieldSpecsToSkip = []config.FieldSpec{
|
|
{
|
|
Gvk: gvk.Gvk{Kind: "CustomResourceDefinition"},
|
|
},
|
|
}
|
|
|
|
// deprecateNameSuffixFieldSpec will be moved into suffixFieldSpecsToSkip in next release
|
|
var deprecateNameSuffixFieldSpec = config.FieldSpec{
|
|
Gvk: gvk.Gvk{Kind: "Namespace"},
|
|
}
|
|
|
|
// NewNameSuffixTransformer construct a nameSuffixTransformer.
|
|
func NewNameSuffixTransformer(ns string, pc []config.FieldSpec) (Transformer, error) {
|
|
if len(ns) == 0 {
|
|
return NewNoOpTransformer(), nil
|
|
}
|
|
if pc == nil {
|
|
return nil, errors.New("fieldSpecs is not expected to be nil")
|
|
}
|
|
return &nameSuffixTransformer{fieldSpecsToUse: pc, suffix: ns, fieldSpecsToSkip: suffixFieldSpecsToSkip}, nil
|
|
}
|
|
|
|
// Transform appends the name suffix.
|
|
func (o *nameSuffixTransformer) Transform(m resmap.ResMap) error {
|
|
// Fill map "mf" with entries subject to name modification, and
|
|
// delete these entries from "m", so that for now m retains only
|
|
// the entries whose names will not be modified.
|
|
mf := resmap.ResMap{}
|
|
for id := range m {
|
|
found := false
|
|
for _, path := range o.fieldSpecsToSkip {
|
|
if id.Gvk().IsSelected(&path.Gvk) {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
mf[id] = m[id]
|
|
delete(m, id)
|
|
}
|
|
}
|
|
|
|
for id := range mf {
|
|
if id.Gvk().IsSelected(&deprecateNameSuffixFieldSpec.Gvk) {
|
|
log.Println("Adding name suffix to Namespace resource will be deprecated in next release.")
|
|
}
|
|
objMap := mf[id].Map()
|
|
for _, path := range o.fieldSpecsToUse {
|
|
if !id.Gvk().IsSelected(&path.Gvk) {
|
|
continue
|
|
}
|
|
err := mutateField(objMap, path.PathSlice(), path.CreateIfNotPresent, o.addSuffix)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
newId := id.CopyWithNewSuffix(o.suffix)
|
|
m[newId] = mf[id]
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (o *nameSuffixTransformer) addSuffix(in interface{}) (interface{}, error) {
|
|
s, ok := in.(string)
|
|
if !ok {
|
|
return nil, fmt.Errorf("%#v is expectd to be %T", in, s)
|
|
}
|
|
return s + o.suffix, nil
|
|
}
|