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storage.go
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storage.go
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/*
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 storage
import (
"k8s.io/apimachinery/pkg/runtime"
genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/generic"
genericregistry "k8s.io/apiserver/pkg/registry/generic/registry"
"k8s.io/apiserver/pkg/registry/rest"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/apis/certificates"
"k8s.io/kubernetes/pkg/registry/cachesize"
csrregistry "k8s.io/kubernetes/pkg/registry/certificates/certificates"
)
// REST implements a RESTStorage for CertificateSigningRequest
type REST struct {
*genericregistry.Store
}
// NewREST returns a registry which will store CertificateSigningRequest in the given helper
func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, *StatusREST, *ApprovalREST) {
store := &genericregistry.Store{
Copier: api.Scheme,
NewFunc: func() runtime.Object { return &certificates.CertificateSigningRequest{} },
NewListFunc: func() runtime.Object { return &certificates.CertificateSigningRequestList{} },
PredicateFunc: csrregistry.Matcher,
QualifiedResource: certificates.Resource("certificatesigningrequests"),
WatchCacheSize: cachesize.GetWatchCacheSizeByResource("certificatesigningrequests"),
CreateStrategy: csrregistry.Strategy,
UpdateStrategy: csrregistry.Strategy,
DeleteStrategy: csrregistry.Strategy,
}
options := &generic.StoreOptions{RESTOptions: optsGetter, AttrFunc: csrregistry.GetAttrs}
if err := store.CompleteWithOptions(options); err != nil {
panic(err) // TODO: Propagate error up
}
// Subresources use the same store and creation strategy, which only
// allows empty subs. Updates to an existing subresource are handled by
// dedicated strategies.
statusStore := *store
statusStore.UpdateStrategy = csrregistry.StatusStrategy
approvalStore := *store
approvalStore.UpdateStrategy = csrregistry.ApprovalStrategy
return &REST{store}, &StatusREST{store: &statusStore}, &ApprovalREST{store: &approvalStore}
}
// Implement ShortNamesProvider
var _ rest.ShortNamesProvider = &REST{}
// ShortNames implements the ShortNamesProvider interface. Returns a list of short names for a resource.
func (r *REST) ShortNames() []string {
return []string{"csr"}
}
// StatusREST implements the REST endpoint for changing the status of a CSR.
type StatusREST struct {
store *genericregistry.Store
}
func (r *StatusREST) New() runtime.Object {
return &certificates.CertificateSigningRequest{}
}
// Update alters the status subset of an object.
func (r *StatusREST) Update(ctx genericapirequest.Context, name string, objInfo rest.UpdatedObjectInfo) (runtime.Object, bool, error) {
return r.store.Update(ctx, name, objInfo)
}
// ApprovalREST implements the REST endpoint for changing the approval state of a CSR.
type ApprovalREST struct {
store *genericregistry.Store
}
func (r *ApprovalREST) New() runtime.Object {
return &certificates.CertificateSigningRequest{}
}
// Update alters the approval subset of an object.
func (r *ApprovalREST) Update(ctx genericapirequest.Context, name string, objInfo rest.UpdatedObjectInfo) (runtime.Object, bool, error) {
return r.store.Update(ctx, name, objInfo)
}