k8s.io/kubernetes@v1.29.3/pkg/registry/core/persistentvolume/storage/storage.go (about) 1 /* 2 Copyright 2015 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package storage 18 19 import ( 20 "context" 21 22 metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" 23 "k8s.io/apimachinery/pkg/runtime" 24 "k8s.io/apiserver/pkg/registry/generic" 25 genericregistry "k8s.io/apiserver/pkg/registry/generic/registry" 26 "k8s.io/apiserver/pkg/registry/rest" 27 api "k8s.io/kubernetes/pkg/apis/core" 28 "k8s.io/kubernetes/pkg/printers" 29 printersinternal "k8s.io/kubernetes/pkg/printers/internalversion" 30 printerstorage "k8s.io/kubernetes/pkg/printers/storage" 31 "k8s.io/kubernetes/pkg/registry/core/persistentvolume" 32 "sigs.k8s.io/structured-merge-diff/v4/fieldpath" 33 ) 34 35 // REST implements a RESTStorage for persistent volumes. 36 type REST struct { 37 *genericregistry.Store 38 } 39 40 // NewREST returns a RESTStorage object that will work against persistent volumes. 41 func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST, error) { 42 store := &genericregistry.Store{ 43 NewFunc: func() runtime.Object { return &api.PersistentVolume{} }, 44 NewListFunc: func() runtime.Object { return &api.PersistentVolumeList{} }, 45 PredicateFunc: persistentvolume.MatchPersistentVolumes, 46 DefaultQualifiedResource: api.Resource("persistentvolumes"), 47 SingularQualifiedResource: api.Resource("persistentvolume"), 48 49 CreateStrategy: persistentvolume.Strategy, 50 UpdateStrategy: persistentvolume.Strategy, 51 DeleteStrategy: persistentvolume.Strategy, 52 ReturnDeletedObject: true, 53 ResetFieldsStrategy: persistentvolume.Strategy, 54 55 TableConvertor: printerstorage.TableConvertor{TableGenerator: printers.NewTableGenerator().With(printersinternal.AddHandlers)}, 56 } 57 options := &generic.StoreOptions{RESTOptions: optsGetter, AttrFunc: persistentvolume.GetAttrs} 58 if err := store.CompleteWithOptions(options); err != nil { 59 return nil, nil, err 60 } 61 62 statusStore := *store 63 statusStore.UpdateStrategy = persistentvolume.StatusStrategy 64 statusStore.ResetFieldsStrategy = persistentvolume.StatusStrategy 65 66 return &REST{store}, &StatusREST{store: &statusStore}, nil 67 } 68 69 // Implement ShortNamesProvider 70 var _ rest.ShortNamesProvider = &REST{} 71 72 // ShortNames implements the ShortNamesProvider interface. Returns a list of short names for a resource. 73 func (r *REST) ShortNames() []string { 74 return []string{"pv"} 75 } 76 77 // StatusREST implements the REST endpoint for changing the status of a persistentvolume. 78 type StatusREST struct { 79 store *genericregistry.Store 80 } 81 82 // New creates a new PersistentVolume object. 83 func (r *StatusREST) New() runtime.Object { 84 return &api.PersistentVolume{} 85 } 86 87 // Destroy cleans up resources on shutdown. 88 func (r *StatusREST) Destroy() { 89 // Given that underlying store is shared with REST, 90 // we don't destroy it here explicitly. 91 } 92 93 // Get retrieves the object from the storage. It is required to support Patch. 94 func (r *StatusREST) Get(ctx context.Context, name string, options *metav1.GetOptions) (runtime.Object, error) { 95 return r.store.Get(ctx, name, options) 96 } 97 98 // Update alters the status subset of an object. 99 func (r *StatusREST) Update(ctx context.Context, name string, objInfo rest.UpdatedObjectInfo, createValidation rest.ValidateObjectFunc, updateValidation rest.ValidateObjectUpdateFunc, forceAllowCreate bool, options *metav1.UpdateOptions) (runtime.Object, bool, error) { 100 // We are explicitly setting forceAllowCreate to false in the call to the underlying storage because 101 // subresources should never allow create on update. 102 return r.store.Update(ctx, name, objInfo, createValidation, updateValidation, false, options) 103 } 104 105 // GetResetFields implements rest.ResetFieldsStrategy 106 func (r *StatusREST) GetResetFields() map[fieldpath.APIVersion]*fieldpath.Set { 107 return r.store.GetResetFields() 108 } 109 110 func (r *StatusREST) ConvertToTable(ctx context.Context, object runtime.Object, tableOptions runtime.Object) (*metav1.Table, error) { 111 return r.store.ConvertToTable(ctx, object, tableOptions) 112 }