76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
/*
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Copyright 2021 The Flux authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package postrender
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import (
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"bytes"
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"fmt"
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"sigs.k8s.io/kustomize/api/builtins"
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"sigs.k8s.io/kustomize/api/provider"
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"sigs.k8s.io/kustomize/api/resmap"
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kustypes "sigs.k8s.io/kustomize/api/types"
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)
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func NewOriginLabels(group, namespace, name string) *OriginLabels {
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return &OriginLabels{
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group: group,
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name: name,
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namespace: namespace,
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}
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}
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type OriginLabels struct {
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group string
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name string
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namespace string
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}
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func (k *OriginLabels) Run(renderedManifests *bytes.Buffer) (modifiedManifests *bytes.Buffer, err error) {
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resFactory := provider.NewDefaultDepProvider().GetResourceFactory()
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resMapFactory := resmap.NewFactory(resFactory)
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resMap, err := resMapFactory.NewResMapFromBytes(renderedManifests.Bytes())
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if err != nil {
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return nil, err
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}
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labelTransformer := builtins.LabelTransformerPlugin{
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Labels: originLabels(k.group, k.namespace, k.name),
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FieldSpecs: []kustypes.FieldSpec{
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{Path: "metadata/labels", CreateIfNotPresent: true},
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},
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}
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if err := labelTransformer.Transform(resMap); err != nil {
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return nil, err
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}
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yaml, err := resMap.AsYaml()
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if err != nil {
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return nil, err
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}
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return bytes.NewBuffer(yaml), nil
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}
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func originLabels(group, namespace, name string) map[string]string {
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return map[string]string{
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fmt.Sprintf("%s/name", group): name,
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fmt.Sprintf("%s/namespace", group): namespace,
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}
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}
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