mirror of https://github.com/k3s-io/k3s
109 lines
3.9 KiB
Go
109 lines
3.9 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package etcd
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import (
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/rest"
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policyapi "k8s.io/kubernetes/pkg/apis/policy"
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"k8s.io/kubernetes/pkg/registry/cachesize"
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"k8s.io/kubernetes/pkg/registry/generic"
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"k8s.io/kubernetes/pkg/registry/generic/registry"
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"k8s.io/kubernetes/pkg/registry/policy/poddisruptionbudget"
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"k8s.io/kubernetes/pkg/runtime"
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"k8s.io/kubernetes/pkg/storage"
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)
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// rest implements a RESTStorage for pod disruption budgets against etcd
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type REST struct {
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*registry.Store
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}
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// NewREST returns a RESTStorage object that will work against pod disruption budgets.
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func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
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prefix := "/" + opts.ResourcePrefix
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newListFunc := func() runtime.Object { return &policyapi.PodDisruptionBudgetList{} }
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storageInterface, dFunc := opts.Decorator(
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opts.StorageConfig,
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cachesize.GetWatchCacheSizeByResource(cachesize.PodDisruptionBudget),
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&policyapi.PodDisruptionBudget{},
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prefix,
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poddisruptionbudget.Strategy,
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newListFunc,
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storage.NoTriggerPublisher,
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)
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store := ®istry.Store{
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NewFunc: func() runtime.Object { return &policyapi.PodDisruptionBudget{} },
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// NewListFunc returns an object capable of storing results of an etcd list.
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NewListFunc: newListFunc,
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// Produces a podDisruptionBudget that etcd understands, to the root of the resource
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// by combining the namespace in the context with the given prefix
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KeyRootFunc: func(ctx api.Context) string {
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return registry.NamespaceKeyRootFunc(ctx, prefix)
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},
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// Produces a podDisruptionBudget that etcd understands, to the resource by combining
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// the namespace in the context with the given prefix
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KeyFunc: func(ctx api.Context, name string) (string, error) {
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return registry.NamespaceKeyFunc(ctx, prefix, name)
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},
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// Retrieve the name field of a pod disruption budget
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ObjectNameFunc: func(obj runtime.Object) (string, error) {
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return obj.(*policyapi.PodDisruptionBudget).Name, nil
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},
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// Used to match objects based on labels/fields for list and watch
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PredicateFunc: poddisruptionbudget.MatchPodDisruptionBudget,
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QualifiedResource: policyapi.Resource("poddisruptionbudgets"),
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EnableGarbageCollection: opts.EnableGarbageCollection,
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DeleteCollectionWorkers: opts.DeleteCollectionWorkers,
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// Used to validate controller creation
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CreateStrategy: poddisruptionbudget.Strategy,
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// Used to validate controller updates
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UpdateStrategy: poddisruptionbudget.Strategy,
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DeleteStrategy: poddisruptionbudget.Strategy,
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Storage: storageInterface,
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DestroyFunc: dFunc,
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}
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statusStore := *store
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statusStore.UpdateStrategy = poddisruptionbudget.StatusStrategy
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return &REST{store}, &StatusREST{store: &statusStore}
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}
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// StatusREST implements the REST endpoint for changing the status of an podDisruptionBudget
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type StatusREST struct {
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store *registry.Store
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}
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func (r *StatusREST) New() runtime.Object {
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return &policyapi.PodDisruptionBudget{}
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}
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// Get retrieves the object from the storage. It is required to support Patch.
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func (r *StatusREST) Get(ctx api.Context, name string) (runtime.Object, error) {
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return r.store.Get(ctx, name)
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}
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// Update alters the status subset of an object.
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func (r *StatusREST) Update(ctx api.Context, name string, objInfo rest.UpdatedObjectInfo) (runtime.Object, bool, error) {
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return r.store.Update(ctx, name, objInfo)
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}
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