mirror of https://github.com/knative/pkg.git
98 lines
2.8 KiB
Go
98 lines
2.8 KiB
Go
/*
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Copyright 2019 The Knative 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 defaulting
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import (
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"context"
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admissionv1 "k8s.io/api/admission/v1"
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"k8s.io/apimachinery/pkg/api/equality"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"knative.dev/pkg/apis"
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)
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var (
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emptyGroupUpdaterAnnotation = apis.UpdaterAnnotationSuffix[1:]
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emptyGroupCreatorAnnotation = apis.CreatorAnnotationSuffix[1:]
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)
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// setUserInfoAnnotations sets creator and updater annotations on a resource.
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func setUserInfoAnnotations(ctx context.Context, resource apis.HasSpec, groupName string) {
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if ui := apis.GetUserInfo(ctx); ui != nil {
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objectMetaAccessor, ok := resource.(metav1.ObjectMetaAccessor)
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if !ok {
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return
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}
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annotations := objectMetaAccessor.GetObjectMeta().GetAnnotations()
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if annotations == nil {
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annotations = map[string]string{}
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objectMetaAccessor.GetObjectMeta().SetAnnotations(annotations)
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}
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updaterAnnotation := emptyGroupUpdaterAnnotation
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creatorAnnotation := emptyGroupCreatorAnnotation
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if groupName != "" {
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updaterAnnotation = groupName + apis.UpdaterAnnotationSuffix
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creatorAnnotation = groupName + apis.CreatorAnnotationSuffix
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}
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if apis.IsInUpdate(ctx) {
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old := apis.GetBaseline(ctx).(apis.HasSpec)
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if equality.Semantic.DeepEqual(old.GetUntypedSpec(), resource.GetUntypedSpec()) {
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return
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}
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annotations[updaterAnnotation] = ui.Username
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} else {
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annotations[creatorAnnotation] = ui.Username
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annotations[updaterAnnotation] = ui.Username
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}
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objectMetaAccessor.GetObjectMeta().SetAnnotations(annotations)
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}
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}
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type unstructuredHasSpec struct {
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*unstructured.Unstructured
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}
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func (us unstructuredHasSpec) GetObjectMeta() metav1.Object {
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return us.Unstructured
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}
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var _ metav1.ObjectMetaAccessor = unstructuredHasSpec{}
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func (us unstructuredHasSpec) GetUntypedSpec() interface{} {
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if s, ok := us.Unstructured.Object["spec"]; ok {
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return s
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}
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return nil
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}
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func adaptUnstructuredHasSpecCtx(ctx context.Context, req *admissionv1.AdmissionRequest) context.Context {
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if apis.IsInUpdate(ctx) {
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b := apis.GetBaseline(ctx)
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if apis.IsInStatusUpdate(ctx) {
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ctx = apis.WithinSubResourceUpdate(ctx, unstructuredHasSpec{b.(*unstructured.Unstructured)}, req.SubResource)
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} else {
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ctx = apis.WithinUpdate(ctx, unstructuredHasSpec{b.(*unstructured.Unstructured)})
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}
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}
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return ctx
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}
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