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https://github.com/k3s-io/kubernetes.git
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428d2263e5
This commit adds support to core resources to enable deferred deletion of resources. Clients may optionally specify a time period after which resources must be deleted via an object sent with their DELETE. That object may define an optional grace period in seconds, or allow the default "preferred" value for a resource to be used. Once the object is marked as pending deletion, the deletionTimestamp field will be set and an etcd TTL will be in place. Clients should assume resources that have deletionTimestamp set will be deleted at some point in the future. Other changes will come later to enable graceful deletion on a per resource basis.
101 lines
3.2 KiB
Go
101 lines
3.2 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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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 pod
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import (
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/fields"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/watch"
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)
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// Registry is an interface implemented by things that know how to store Pod objects.
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type Registry interface {
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// ListPods obtains a list of pods having labels which match selector.
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ListPods(ctx api.Context, selector labels.Selector) (*api.PodList, error)
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// Watch for new/changed/deleted pods
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WatchPods(ctx api.Context, label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error)
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// Get a specific pod
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GetPod(ctx api.Context, podID string) (*api.Pod, error)
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// Create a pod based on a specification.
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CreatePod(ctx api.Context, pod *api.Pod) error
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// Update an existing pod
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UpdatePod(ctx api.Context, pod *api.Pod) error
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// Delete an existing pod
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DeletePod(ctx api.Context, podID string) error
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}
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// Storage is an interface for a standard REST Storage backend
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// TODO: move me somewhere common
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type Storage interface {
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apiserver.RESTGracefulDeleter
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apiserver.RESTLister
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apiserver.RESTGetter
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apiserver.ResourceWatcher
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Create(ctx api.Context, obj runtime.Object) (runtime.Object, error)
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Update(ctx api.Context, obj runtime.Object) (runtime.Object, bool, error)
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}
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// storage puts strong typing around storage calls
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type storage struct {
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Storage
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}
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// NewRegistry returns a new Registry interface for the given Storage. Any mismatched
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// types will panic.
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func NewRegistry(s Storage) Registry {
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return &storage{s}
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}
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func (s *storage) ListPods(ctx api.Context, label labels.Selector) (*api.PodList, error) {
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obj, err := s.List(ctx, label, fields.Everything())
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if err != nil {
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return nil, err
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}
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return obj.(*api.PodList), nil
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}
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func (s *storage) WatchPods(ctx api.Context, label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
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return s.Watch(ctx, label, field, resourceVersion)
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}
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func (s *storage) GetPod(ctx api.Context, podID string) (*api.Pod, error) {
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obj, err := s.Get(ctx, podID)
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if err != nil {
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return nil, err
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}
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return obj.(*api.Pod), nil
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}
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func (s *storage) CreatePod(ctx api.Context, pod *api.Pod) error {
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_, err := s.Create(ctx, pod)
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return err
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}
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func (s *storage) UpdatePod(ctx api.Context, pod *api.Pod) error {
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_, _, err := s.Update(ctx, pod)
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return err
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}
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func (s *storage) DeletePod(ctx api.Context, podID string) error {
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_, err := s.Delete(ctx, podID, nil)
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return err
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}
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