storage.go

Documentation: k8s.io/kubernetes/pkg/registry/certificates/clustertrustbundle/storage

     1  /*
     2  Copyright 2022 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  	"fmt"
    21  
    22  	"k8s.io/apimachinery/pkg/fields"
    23  	"k8s.io/apimachinery/pkg/labels"
    24  	"k8s.io/apimachinery/pkg/runtime"
    25  	"k8s.io/apiserver/pkg/registry/generic"
    26  	genericregistry "k8s.io/apiserver/pkg/registry/generic/registry"
    27  	"k8s.io/apiserver/pkg/registry/rest"
    28  	api "k8s.io/kubernetes/pkg/apis/certificates"
    29  	"k8s.io/kubernetes/pkg/printers"
    30  	printersinternal "k8s.io/kubernetes/pkg/printers/internalversion"
    31  	printerstorage "k8s.io/kubernetes/pkg/printers/storage"
    32  	"k8s.io/kubernetes/pkg/registry/certificates/clustertrustbundle"
    33  )
    34  
    35  // REST is a RESTStorage for ClusterTrustBundle.
    36  type REST struct {
    37  	*genericregistry.Store
    38  }
    39  
    40  var _ rest.StandardStorage = &REST{}
    41  var _ rest.TableConvertor = &REST{}
    42  var _ genericregistry.GenericStore = &REST{}
    43  
    44  // NewREST returns a RESTStorage object for ClusterTrustBundle objects.
    45  func NewREST(optsGetter generic.RESTOptionsGetter) (*REST, error) {
    46  	store := &genericregistry.Store{
    47  		NewFunc:                   func() runtime.Object { return &api.ClusterTrustBundle{} },
    48  		NewListFunc:               func() runtime.Object { return &api.ClusterTrustBundleList{} },
    49  		DefaultQualifiedResource:  api.Resource("clustertrustbundles"),
    50  		SingularQualifiedResource: api.Resource("clustertrustbundle"),
    51  
    52  		CreateStrategy: clustertrustbundle.Strategy,
    53  		UpdateStrategy: clustertrustbundle.Strategy,
    54  		DeleteStrategy: clustertrustbundle.Strategy,
    55  
    56  		TableConvertor: printerstorage.TableConvertor{TableGenerator: printers.NewTableGenerator().With(printersinternal.AddHandlers)},
    57  	}
    58  	options := &generic.StoreOptions{
    59  		RESTOptions: optsGetter,
    60  		AttrFunc:    getAttrs,
    61  	}
    62  	if err := store.CompleteWithOptions(options); err != nil {
    63  		return nil, err
    64  	}
    65  	return &REST{store}, nil
    66  }
    67  
    68  func getAttrs(obj runtime.Object) (labels.Set, fields.Set, error) {
    69  	bundle, ok := obj.(*api.ClusterTrustBundle)
    70  	if !ok {
    71  		return nil, nil, fmt.Errorf("not a clustertrustbundle")
    72  	}
    73  
    74  	selectableFields := generic.MergeFieldsSets(generic.ObjectMetaFieldsSet(&bundle.ObjectMeta, false), fields.Set{
    75  		"spec.signerName": bundle.Spec.SignerName,
    76  	})
    77  
    78  	return labels.Set(bundle.Labels), selectableFields, nil
    79  }
    80
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