storage_resource.go

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

     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 rest
    18  
    19  import (
    20  	resourcev1alpha2 "k8s.io/api/resource/v1alpha2"
    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/resource"
    27  	podschedulingcontextsstore "k8s.io/kubernetes/pkg/registry/resource/podschedulingcontext/storage"
    28  	resourceclaimstore "k8s.io/kubernetes/pkg/registry/resource/resourceclaim/storage"
    29  	resourceclaimparametersstore "k8s.io/kubernetes/pkg/registry/resource/resourceclaimparameters/storage"
    30  	resourceclaimtemplatestore "k8s.io/kubernetes/pkg/registry/resource/resourceclaimtemplate/storage"
    31  	resourceclassstore "k8s.io/kubernetes/pkg/registry/resource/resourceclass/storage"
    32  	resourceclassparametersstore "k8s.io/kubernetes/pkg/registry/resource/resourceclassparameters/storage"
    33  	resourceslicestore "k8s.io/kubernetes/pkg/registry/resource/resourceslice/storage"
    34  )
    35  
    36  type RESTStorageProvider struct{}
    37  
    38  func (p RESTStorageProvider) NewRESTStorage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (genericapiserver.APIGroupInfo, error) {
    39  	apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(resource.GroupName, legacyscheme.Scheme, legacyscheme.ParameterCodec, legacyscheme.Codecs)
    40  	// If you add a version here, be sure to add an entry in `k8s.io/kubernetes/cmd/kube-apiserver/app/aggregator.go with specific priorities.
    41  	// TODO refactor the plumbing to provide the information in the APIGroupInfo
    42  
    43  	if storageMap, err := p.v1alpha2Storage(apiResourceConfigSource, restOptionsGetter); err != nil {
    44  		return genericapiserver.APIGroupInfo{}, err
    45  	} else if len(storageMap) > 0 {
    46  		apiGroupInfo.VersionedResourcesStorageMap[resourcev1alpha2.SchemeGroupVersion.Version] = storageMap
    47  	}
    48  
    49  	return apiGroupInfo, nil
    50  }
    51  
    52  func (p RESTStorageProvider) v1alpha2Storage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (map[string]rest.Storage, error) {
    53  	storage := map[string]rest.Storage{}
    54  
    55  	if resource := "resourceclasses"; apiResourceConfigSource.ResourceEnabled(resourcev1alpha2.SchemeGroupVersion.WithResource(resource)) {
    56  		resourceClassStorage, err := resourceclassstore.NewREST(restOptionsGetter)
    57  		if err != nil {
    58  			return nil, err
    59  		}
    60  		storage[resource] = resourceClassStorage
    61  	}
    62  
    63  	if resource := "resourceclaims"; apiResourceConfigSource.ResourceEnabled(resourcev1alpha2.SchemeGroupVersion.WithResource(resource)) {
    64  		resourceClaimStorage, resourceClaimStatusStorage, err := resourceclaimstore.NewREST(restOptionsGetter)
    65  		if err != nil {
    66  			return nil, err
    67  		}
    68  		storage[resource] = resourceClaimStorage
    69  		storage[resource+"/status"] = resourceClaimStatusStorage
    70  	}
    71  
    72  	if resource := "resourceclaimtemplates"; apiResourceConfigSource.ResourceEnabled(resourcev1alpha2.SchemeGroupVersion.WithResource(resource)) {
    73  		resourceClaimTemplateStorage, err := resourceclaimtemplatestore.NewREST(restOptionsGetter)
    74  		if err != nil {
    75  			return nil, err
    76  		}
    77  		storage[resource] = resourceClaimTemplateStorage
    78  	}
    79  
    80  	if resource := "podschedulingcontexts"; apiResourceConfigSource.ResourceEnabled(resourcev1alpha2.SchemeGroupVersion.WithResource(resource)) {
    81  		podSchedulingStorage, podSchedulingStatusStorage, err := podschedulingcontextsstore.NewREST(restOptionsGetter)
    82  		if err != nil {
    83  			return nil, err
    84  		}
    85  		storage[resource] = podSchedulingStorage
    86  		storage[resource+"/status"] = podSchedulingStatusStorage
    87  	}
    88  
    89  	if resource := "resourceclaimparameters"; apiResourceConfigSource.ResourceEnabled(resourcev1alpha2.SchemeGroupVersion.WithResource(resource)) {
    90  		resourceClaimParametersStorage, err := resourceclaimparametersstore.NewREST(restOptionsGetter)
    91  		if err != nil {
    92  			return nil, err
    93  		}
    94  		storage[resource] = resourceClaimParametersStorage
    95  	}
    96  
    97  	if resource := "resourceclassparameters"; apiResourceConfigSource.ResourceEnabled(resourcev1alpha2.SchemeGroupVersion.WithResource(resource)) {
    98  		resourceClassParametersStorage, err := resourceclassparametersstore.NewREST(restOptionsGetter)
    99  		if err != nil {
   100  			return nil, err
   101  		}
   102  		storage[resource] = resourceClassParametersStorage
   103  	}
   104  
   105  	if resource := "resourceslices"; apiResourceConfigSource.ResourceEnabled(resourcev1alpha2.SchemeGroupVersion.WithResource(resource)) {
   106  		resourceSliceStorage, err := resourceslicestore.NewREST(restOptionsGetter)
   107  		if err != nil {
   108  			return nil, err
   109  		}
   110  		storage[resource] = resourceSliceStorage
   111  	}
   112  
   113  	return storage, nil
   114  }
   115  
   116  func (p RESTStorageProvider) GroupName() string {
   117  	return resource.GroupName
   118  }
   119
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