mirror of https://github.com/k3s-io/k3s
138 lines
5.2 KiB
Go
138 lines
5.2 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 persistentvolumeclaim
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import (
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"context"
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"fmt"
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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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"k8s.io/apiserver/pkg/registry/generic"
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"k8s.io/apiserver/pkg/storage"
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"k8s.io/apiserver/pkg/storage/names"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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pvcutil "k8s.io/kubernetes/pkg/api/persistentvolumeclaim"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/apis/core/validation"
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"k8s.io/kubernetes/pkg/features"
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)
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// persistentvolumeclaimStrategy implements behavior for PersistentVolumeClaim objects
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type persistentvolumeclaimStrategy 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 PersistentVolumeClaim
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// objects via the REST API.
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var Strategy = persistentvolumeclaimStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
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func (persistentvolumeclaimStrategy) NamespaceScoped() bool {
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return true
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}
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// PrepareForCreate clears the Status field which is not allowed to be set by end users on creation.
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func (persistentvolumeclaimStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
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pvc := obj.(*api.PersistentVolumeClaim)
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pvc.Status = api.PersistentVolumeClaimStatus{}
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pvcutil.DropDisabledFields(&pvc.Spec, nil)
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}
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func (persistentvolumeclaimStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
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pvc := obj.(*api.PersistentVolumeClaim)
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return validation.ValidatePersistentVolumeClaim(pvc)
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}
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// Canonicalize normalizes the object after validation.
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func (persistentvolumeclaimStrategy) Canonicalize(obj runtime.Object) {
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}
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func (persistentvolumeclaimStrategy) AllowCreateOnUpdate() bool {
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return false
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}
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// PrepareForUpdate sets the Status field which is not allowed to be set by end users on update
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func (persistentvolumeclaimStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
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newPvc := obj.(*api.PersistentVolumeClaim)
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oldPvc := old.(*api.PersistentVolumeClaim)
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newPvc.Status = oldPvc.Status
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pvcutil.DropDisabledFields(&newPvc.Spec, &oldPvc.Spec)
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}
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func (persistentvolumeclaimStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
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errorList := validation.ValidatePersistentVolumeClaim(obj.(*api.PersistentVolumeClaim))
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return append(errorList, validation.ValidatePersistentVolumeClaimUpdate(obj.(*api.PersistentVolumeClaim), old.(*api.PersistentVolumeClaim))...)
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}
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func (persistentvolumeclaimStrategy) AllowUnconditionalUpdate() bool {
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return true
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}
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type persistentvolumeclaimStatusStrategy struct {
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persistentvolumeclaimStrategy
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}
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var StatusStrategy = persistentvolumeclaimStatusStrategy{Strategy}
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// PrepareForUpdate sets the Spec field which is not allowed to be changed when updating a PV's Status
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func (persistentvolumeclaimStatusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
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newPv := obj.(*api.PersistentVolumeClaim)
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oldPv := old.(*api.PersistentVolumeClaim)
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newPv.Spec = oldPv.Spec
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if !utilfeature.DefaultFeatureGate.Enabled(features.ExpandPersistentVolumes) && oldPv.Status.Conditions == nil {
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newPv.Status.Conditions = nil
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}
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}
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func (persistentvolumeclaimStatusStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
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return validation.ValidatePersistentVolumeClaimStatusUpdate(obj.(*api.PersistentVolumeClaim), old.(*api.PersistentVolumeClaim))
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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, error) {
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persistentvolumeclaimObj, ok := obj.(*api.PersistentVolumeClaim)
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if !ok {
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return nil, nil, fmt.Errorf("not a persistentvolumeclaim")
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}
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return labels.Set(persistentvolumeclaimObj.Labels), PersistentVolumeClaimToSelectableFields(persistentvolumeclaimObj), nil
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}
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// MatchPersistentVolumeClaim returns a generic matcher for a given label and field selector.
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func MatchPersistentVolumeClaim(label labels.Selector, field fields.Selector) storage.SelectionPredicate {
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return storage.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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// PersistentVolumeClaimToSelectableFields returns a field set that represents the object
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func PersistentVolumeClaimToSelectableFields(persistentvolumeclaim *api.PersistentVolumeClaim) fields.Set {
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objectMetaFieldsSet := generic.ObjectMetaFieldsSet(&persistentvolumeclaim.ObjectMeta, true)
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specificFieldsSet := fields.Set{
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// This is a bug, but we need to support it for backward compatibility.
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"name": persistentvolumeclaim.Name,
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}
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return generic.MergeFieldsSets(objectMetaFieldsSet, specificFieldsSet)
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}
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