| /* |
| Copyright 2016 The Kubernetes 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 storageclass |
| |
| import ( |
| "context" |
| |
| "k8s.io/apimachinery/pkg/runtime" |
| "k8s.io/apimachinery/pkg/util/validation/field" |
| "k8s.io/apiserver/pkg/storage/names" |
| utilfeature "k8s.io/apiserver/pkg/util/feature" |
| "k8s.io/kubernetes/pkg/api/legacyscheme" |
| "k8s.io/kubernetes/pkg/apis/storage" |
| storageutil "k8s.io/kubernetes/pkg/apis/storage/util" |
| "k8s.io/kubernetes/pkg/apis/storage/validation" |
| "k8s.io/kubernetes/pkg/features" |
| ) |
| |
| // storageClassStrategy implements behavior for StorageClass objects |
| type storageClassStrategy struct { |
| runtime.ObjectTyper |
| names.NameGenerator |
| } |
| |
| // Strategy is the default logic that applies when creating and updating |
| // StorageClass objects via the REST API. |
| var Strategy = storageClassStrategy{legacyscheme.Scheme, names.SimpleNameGenerator} |
| |
| func (storageClassStrategy) NamespaceScoped() bool { |
| return false |
| } |
| |
| // ResetBeforeCreate clears the Status field which is not allowed to be set by end users on creation. |
| func (storageClassStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) { |
| class := obj.(*storage.StorageClass) |
| |
| if !utilfeature.DefaultFeatureGate.Enabled(features.ExpandPersistentVolumes) { |
| class.AllowVolumeExpansion = nil |
| } |
| |
| storageutil.DropDisabledAlphaFields(class) |
| } |
| |
| func (storageClassStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList { |
| storageClass := obj.(*storage.StorageClass) |
| return validation.ValidateStorageClass(storageClass) |
| } |
| |
| // Canonicalize normalizes the object after validation. |
| func (storageClassStrategy) Canonicalize(obj runtime.Object) { |
| } |
| |
| func (storageClassStrategy) AllowCreateOnUpdate() bool { |
| return false |
| } |
| |
| // PrepareForUpdate sets the Status fields which is not allowed to be set by an end user updating a PV |
| func (storageClassStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) { |
| newClass := obj.(*storage.StorageClass) |
| oldClass := old.(*storage.StorageClass) |
| |
| if !utilfeature.DefaultFeatureGate.Enabled(features.ExpandPersistentVolumes) { |
| newClass.AllowVolumeExpansion = nil |
| oldClass.AllowVolumeExpansion = nil |
| } |
| storageutil.DropDisabledAlphaFields(oldClass) |
| storageutil.DropDisabledAlphaFields(newClass) |
| } |
| |
| func (storageClassStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList { |
| errorList := validation.ValidateStorageClass(obj.(*storage.StorageClass)) |
| return append(errorList, validation.ValidateStorageClassUpdate(obj.(*storage.StorageClass), old.(*storage.StorageClass))...) |
| } |
| |
| func (storageClassStrategy) AllowUnconditionalUpdate() bool { |
| return true |
| } |