storage_events.go

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

     1  /*
     2  Copyright 2017 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  	"time"
    21  
    22  	eventsapiv1 "k8s.io/api/events/v1"
    23  	"k8s.io/apiserver/pkg/registry/generic"
    24  	"k8s.io/apiserver/pkg/registry/rest"
    25  	genericapiserver "k8s.io/apiserver/pkg/server"
    26  	serverstorage "k8s.io/apiserver/pkg/server/storage"
    27  	"k8s.io/kubernetes/pkg/api/legacyscheme"
    28  	"k8s.io/kubernetes/pkg/apis/events"
    29  	eventstore "k8s.io/kubernetes/pkg/registry/core/event/storage"
    30  )
    31  
    32  type RESTStorageProvider struct {
    33  	TTL time.Duration
    34  }
    35  
    36  func (p RESTStorageProvider) NewRESTStorage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (genericapiserver.APIGroupInfo, error) {
    37  	apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(events.GroupName, legacyscheme.Scheme, legacyscheme.ParameterCodec, legacyscheme.Codecs)
    38  	// 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.
    39  	// TODO refactor the plumbing to provide the information in the APIGroupInfo
    40  
    41  	if storageMap, err := p.v1Storage(apiResourceConfigSource, restOptionsGetter); err != nil {
    42  		return genericapiserver.APIGroupInfo{}, err
    43  	} else if len(storageMap) > 0 {
    44  		apiGroupInfo.VersionedResourcesStorageMap[eventsapiv1.SchemeGroupVersion.Version] = storageMap
    45  	}
    46  
    47  	return apiGroupInfo, nil
    48  }
    49  
    50  func (p RESTStorageProvider) v1Storage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (map[string]rest.Storage, error) {
    51  	storage := map[string]rest.Storage{}
    52  
    53  	// events
    54  	if resource := "events"; apiResourceConfigSource.ResourceEnabled(eventsapiv1.SchemeGroupVersion.WithResource(resource)) {
    55  		eventsStorage, err := eventstore.NewREST(restOptionsGetter, uint64(p.TTL.Seconds()))
    56  		if err != nil {
    57  			return storage, err
    58  		}
    59  		storage[resource] = eventsStorage
    60  	}
    61  
    62  	return storage, nil
    63  }
    64  
    65  func (p RESTStorageProvider) GroupName() string {
    66  	return events.GroupName
    67  }
    68
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