121 lines
5.1 KiB
Go
121 lines
5.1 KiB
Go
/*
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Copyright 2014 The Kubernetes 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 initializerconfiguration
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import (
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"fmt"
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"reflect"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
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"k8s.io/apiserver/pkg/registry/generic"
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apistorage "k8s.io/apiserver/pkg/storage"
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"k8s.io/apiserver/pkg/storage/names"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/apis/admissionregistration"
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"k8s.io/kubernetes/pkg/apis/admissionregistration/validation"
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)
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// initializerConfigurationStrategy implements verification logic for InitializerConfigurations.
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type initializerConfigurationStrategy struct {
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runtime.ObjectTyper
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names.NameGenerator
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}
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// Strategy is the default logic that applies when creating and updating InitializerConfiguration objects.
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var Strategy = initializerConfigurationStrategy{api.Scheme, names.SimpleNameGenerator}
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// NamespaceScoped returns true because all InitializerConfiguration' need to be within a namespace.
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func (initializerConfigurationStrategy) NamespaceScoped() bool {
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return false
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}
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// PrepareForCreate clears the status of an InitializerConfiguration before creation.
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func (initializerConfigurationStrategy) PrepareForCreate(ctx genericapirequest.Context, obj runtime.Object) {
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ic := obj.(*admissionregistration.InitializerConfiguration)
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ic.Generation = 1
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}
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// PrepareForUpdate clears fields that are not allowed to be set by end users on update.
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func (initializerConfigurationStrategy) PrepareForUpdate(ctx genericapirequest.Context, obj, old runtime.Object) {
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newIC := obj.(*admissionregistration.InitializerConfiguration)
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oldIC := old.(*admissionregistration.InitializerConfiguration)
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// Any changes to the spec increment the generation number, any changes to the
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// status should reflect the generation number of the corresponding object.
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// See metav1.ObjectMeta description for more information on Generation.
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if !reflect.DeepEqual(oldIC.Initializers, newIC.Initializers) {
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newIC.Generation = oldIC.Generation + 1
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}
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}
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// Validate validates a new InitializerConfiguration.
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func (initializerConfigurationStrategy) Validate(ctx genericapirequest.Context, obj runtime.Object) field.ErrorList {
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ic := obj.(*admissionregistration.InitializerConfiguration)
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return validation.ValidateInitializerConfiguration(ic)
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}
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// Canonicalize normalizes the object after validation.
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func (initializerConfigurationStrategy) Canonicalize(obj runtime.Object) {
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}
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// AllowCreateOnUpdate is true for InitializerConfiguration; this means you may create one with a PUT request.
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func (initializerConfigurationStrategy) AllowCreateOnUpdate() bool {
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return false
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}
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// ValidateUpdate is the default update validation for an end user.
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func (initializerConfigurationStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old runtime.Object) field.ErrorList {
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validationErrorList := validation.ValidateInitializerConfiguration(obj.(*admissionregistration.InitializerConfiguration))
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updateErrorList := validation.ValidateInitializerConfigurationUpdate(obj.(*admissionregistration.InitializerConfiguration), old.(*admissionregistration.InitializerConfiguration))
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return append(validationErrorList, updateErrorList...)
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}
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// AllowUnconditionalUpdate is the default update policy for InitializerConfiguration objects. Status update should
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// only be allowed if version match.
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func (initializerConfigurationStrategy) AllowUnconditionalUpdate() bool {
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return false
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}
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// MatchReplicaSet is the filter used by the generic etcd backend to route
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// watch events from etcd to clients of the apiserver only interested in specific
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// labels/fields.
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func MatchInitializerConfiguration(label labels.Selector, field fields.Selector) apistorage.SelectionPredicate {
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return apistorage.SelectionPredicate{
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Label: label,
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Field: field,
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GetAttrs: GetAttrs,
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}
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}
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// GetAttrs returns labels and fields of a given object for filtering purposes.
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func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, bool, error) {
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ic, ok := obj.(*admissionregistration.InitializerConfiguration)
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if !ok {
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return nil, nil, false, fmt.Errorf("Given object is not a InitializerConfiguration.")
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}
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return labels.Set(ic.ObjectMeta.Labels), InitializerConfigurationToSelectableFields(ic), ic.ObjectMeta.Initializers != nil, nil
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}
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// InitializerConfigurationToSelectableFields returns a field set that represents the object.
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func InitializerConfigurationToSelectableFields(ic *admissionregistration.InitializerConfiguration) fields.Set {
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return generic.ObjectMetaFieldsSet(&ic.ObjectMeta, false)
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}
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