mirror of https://github.com/knative/pkg.git
90 lines
2.6 KiB
Go
90 lines
2.6 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 apis
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/api/equality"
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"k8s.io/apimachinery/pkg/api/validation"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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const (
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// CreatorAnnotationSuffix is the suffix of the annotation key to describe
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// the user that created the resource.
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CreatorAnnotationSuffix = "/creator"
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// UpdaterAnnotationSuffix is the suffix of the annotation key to describe
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// the user who last modified the resource.
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UpdaterAnnotationSuffix = "/lastModifier"
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)
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// ValidateObjectMetadata validates that `metadata` stanza of the
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// resources is correct.
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func ValidateObjectMetadata(meta metav1.Object) *FieldError {
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name := meta.GetName()
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generateName := meta.GetGenerateName()
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if generateName != "" {
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msgs := validation.NameIsDNS1035Label(generateName, true)
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if len(msgs) > 0 {
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return &FieldError{
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Message: fmt.Sprintf("not a DNS 1035 label prefix: %v", msgs),
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Paths: []string{"generateName"},
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}
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}
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}
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if name != "" {
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msgs := validation.NameIsDNS1035Label(name, false)
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if len(msgs) > 0 {
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return &FieldError{
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Message: fmt.Sprintf("not a DNS 1035 label: %v", msgs),
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Paths: []string{"name"},
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}
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}
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}
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if generateName == "" && name == "" {
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return &FieldError{
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Message: "name or generateName is required",
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Paths: []string{"name"},
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}
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}
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return nil
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}
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// ValidateCreatorAndModifier validates `metadata.annotation`
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func ValidateCreatorAndModifier(oldSpec, newSpec interface{}, oldAnnotation, newAnnotation map[string]string, groupName string) *FieldError {
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var errs *FieldError
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if oldAnnotation[groupName+CreatorAnnotationSuffix] != newAnnotation[groupName+CreatorAnnotationSuffix] {
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errs = errs.Also(&FieldError{
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Message: "annotation value is immutable",
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Paths: []string{groupName + CreatorAnnotationSuffix},
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})
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}
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if equality.Semantic.DeepEqual(oldSpec, newSpec) && oldAnnotation[groupName+UpdaterAnnotationSuffix] != newAnnotation[groupName+UpdaterAnnotationSuffix] {
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errs = errs.Also(ErrInvalidValue(newAnnotation[groupName+UpdaterAnnotationSuffix], groupName+UpdaterAnnotationSuffix))
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}
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return errs
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}
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