storage_discovery.go 3.4 KB

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  1. /*
  2. Copyright 2019 The Kubernetes Authors.
  3. Licensed under the Apache License, Version 2.0 (the "License");
  4. you may not use this file except in compliance with the License.
  5. You may obtain a copy of the License at
  6. http://www.apache.org/licenses/LICENSE-2.0
  7. Unless required by applicable law or agreed to in writing, software
  8. distributed under the License is distributed on an "AS IS" BASIS,
  9. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  10. See the License for the specific language governing permissions and
  11. limitations under the License.
  12. */
  13. package rest
  14. import (
  15. discoveryv1alpha1 "k8s.io/api/discovery/v1alpha1"
  16. discoveryv1beta1 "k8s.io/api/discovery/v1beta1"
  17. "k8s.io/apiserver/pkg/registry/generic"
  18. "k8s.io/apiserver/pkg/registry/rest"
  19. genericapiserver "k8s.io/apiserver/pkg/server"
  20. serverstorage "k8s.io/apiserver/pkg/server/storage"
  21. "k8s.io/kubernetes/pkg/api/legacyscheme"
  22. "k8s.io/kubernetes/pkg/apis/discovery"
  23. endpointslicestorage "k8s.io/kubernetes/pkg/registry/discovery/endpointslice/storage"
  24. )
  25. // StorageProvider is a REST storage provider for discovery.k8s.io.
  26. type StorageProvider struct{}
  27. // NewRESTStorage returns a new storage provider.
  28. func (p StorageProvider) NewRESTStorage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (genericapiserver.APIGroupInfo, bool, error) {
  29. apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(discovery.GroupName, legacyscheme.Scheme, legacyscheme.ParameterCodec, legacyscheme.Codecs)
  30. // 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.
  31. // TODO refactor the plumbing to provide the information in the APIGroupInfo
  32. if apiResourceConfigSource.VersionEnabled(discoveryv1alpha1.SchemeGroupVersion) {
  33. storageMap, err := p.v1alpha1Storage(apiResourceConfigSource, restOptionsGetter)
  34. if err != nil {
  35. return genericapiserver.APIGroupInfo{}, false, err
  36. }
  37. apiGroupInfo.VersionedResourcesStorageMap[discoveryv1alpha1.SchemeGroupVersion.Version] = storageMap
  38. }
  39. if apiResourceConfigSource.VersionEnabled(discoveryv1beta1.SchemeGroupVersion) {
  40. storageMap, err := p.v1beta1Storage(apiResourceConfigSource, restOptionsGetter)
  41. if err != nil {
  42. return genericapiserver.APIGroupInfo{}, false, err
  43. }
  44. apiGroupInfo.VersionedResourcesStorageMap[discoveryv1beta1.SchemeGroupVersion.Version] = storageMap
  45. }
  46. return apiGroupInfo, true, nil
  47. }
  48. func (p StorageProvider) v1alpha1Storage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (map[string]rest.Storage, error) {
  49. storage := map[string]rest.Storage{}
  50. endpointSliceStorage, err := endpointslicestorage.NewREST(restOptionsGetter)
  51. if err != nil {
  52. return storage, err
  53. }
  54. storage["endpointslices"] = endpointSliceStorage
  55. return storage, err
  56. }
  57. func (p StorageProvider) v1beta1Storage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (map[string]rest.Storage, error) {
  58. storage := map[string]rest.Storage{}
  59. endpointSliceStorage, err := endpointslicestorage.NewREST(restOptionsGetter)
  60. if err != nil {
  61. return storage, err
  62. }
  63. storage["endpointslices"] = endpointSliceStorage
  64. return storage, err
  65. }
  66. // GroupName is the group name for the storage provider.
  67. func (p StorageProvider) GroupName() string {
  68. return discovery.GroupName
  69. }