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rewrite.go
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/
rewrite.go
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// Copyright 2018 Istio 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 crd
import (
"strings"
ext "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
"istio.io/istio/galley/pkg/common"
"istio.io/istio/pkg/log"
)
// rewrite the given source CRD as a destination CRD with the given group/version.
func rewrite(source *ext.CustomResourceDefinition, group, version string) *ext.CustomResourceDefinition {
modified := source.DeepCopy()
annotations := modified.GetAnnotations()
if annotations != nil {
delete(annotations, common.KubectlLastAppliedConfiguration)
} else {
annotations = make(map[string]string, 1)
}
annotations[common.AnnotationKeySyncedAtVersion] = source.ObjectMeta.ResourceVersion
modified.GetObjectMeta().SetAnnotations(annotations)
modified.Spec.Group = group
modified.Spec.Version = version
modified.Name = rewriteName(group, source.Name)
modified.ResourceVersion = ""
modified.UID = ""
log.Debugf("CRD Rewrite: %s -> %s", source.Name, modified.Name)
return modified
}
func rewriteName(groupName string, name string) string {
prefix := strings.Split(name, ".")[0]
return prefix + "." + groupName
}