storage.go

Documentation: k8s.io/kubernetes/pkg/registry/apiserverinternal/rest

     1  /*
     2  Copyright 2020 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 rest
    18  
    19  import (
    20  	apiserverv1alpha1 "k8s.io/api/apiserverinternal/v1alpha1"
    21  	"k8s.io/apiserver/pkg/registry/generic"
    22  	"k8s.io/apiserver/pkg/registry/rest"
    23  	genericapiserver "k8s.io/apiserver/pkg/server"
    24  	serverstorage "k8s.io/apiserver/pkg/server/storage"
    25  	"k8s.io/kubernetes/pkg/api/legacyscheme"
    26  	"k8s.io/kubernetes/pkg/apis/apiserverinternal"
    27  	storageversionstorage "k8s.io/kubernetes/pkg/registry/apiserverinternal/storageversion/storage"
    28  )
    29  
    30  // StorageProvider is a REST storage provider for internal.apiserver.k8s.io
    31  type StorageProvider struct{}
    32  
    33  // NewRESTStorage returns a StorageProvider
    34  func (p StorageProvider) NewRESTStorage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (genericapiserver.APIGroupInfo, error) {
    35  	apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(apiserverinternal.GroupName, legacyscheme.Scheme, legacyscheme.ParameterCodec, legacyscheme.Codecs)
    36  
    37  	if storageMap, err := p.v1alpha1Storage(apiResourceConfigSource, restOptionsGetter); err != nil {
    38  		return genericapiserver.APIGroupInfo{}, err
    39  	} else if len(storageMap) > 0 {
    40  		apiGroupInfo.VersionedResourcesStorageMap[apiserverv1alpha1.SchemeGroupVersion.Version] = storageMap
    41  	}
    42  
    43  	return apiGroupInfo, nil
    44  }
    45  
    46  func (p StorageProvider) v1alpha1Storage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (map[string]rest.Storage, error) {
    47  	storage := map[string]rest.Storage{}
    48  
    49  	if resource := "storageversions"; apiResourceConfigSource.ResourceEnabled(apiserverv1alpha1.SchemeGroupVersion.WithResource(resource)) {
    50  		s, status, err := storageversionstorage.NewREST(restOptionsGetter)
    51  		if err != nil {
    52  			return nil, err
    53  		}
    54  		storage[resource] = s
    55  		storage[resource+"/status"] = status
    56  	}
    57  
    58  	return storage, nil
    59  }
    60  
    61  // GroupName is the group name for the storage provider
    62  func (p StorageProvider) GroupName() string {
    63  	return apiserverinternal.GroupName
    64  }
    65
View as plain text