96 lines
3.3 KiB
Go
96 lines
3.3 KiB
Go
/*
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Copyright 2017 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 server
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import (
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"fmt"
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"github.com/golang/glog"
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"golang.org/x/net/context"
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"github.com/containerd/containerd/api/services/execution"
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runtime "k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1"
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"github.com/kubernetes-incubator/cri-containerd/pkg/metadata"
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)
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// RemovePodSandbox removes the sandbox. If there are running containers in the
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// sandbox, they should be forcibly removed.
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func (c *criContainerdService) RemovePodSandbox(ctx context.Context, r *runtime.RemovePodSandboxRequest) (retRes *runtime.RemovePodSandboxResponse, retErr error) {
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glog.V(2).Infof("RemovePodSandbox for sandbox %q", r.GetPodSandboxId())
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defer func() {
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if retErr == nil {
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glog.V(2).Info("RemovePodSandbox %q returns successfully", r.GetPodSandboxId())
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}
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}()
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sandbox, err := c.getSandbox(r.GetPodSandboxId())
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if err != nil {
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if !metadata.IsNotExistError(err) {
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return nil, fmt.Errorf("an error occurred when try to find sandbox %q: %v",
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r.GetPodSandboxId(), err)
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}
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// Do not return error if the id doesn't exist.
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glog.V(5).Infof("RemovePodSandbox called for sandbox %q that does not exist",
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r.GetPodSandboxId())
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return &runtime.RemovePodSandboxResponse{}, nil
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}
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// Use the full sandbox id.
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id := sandbox.ID
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// TODO(random-liu): [P2] Remove all containers in the sandbox.
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// Return error if sandbox container is not fully stopped.
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// TODO(random-liu): [P0] Make sure network is torn down, may need to introduce a state.
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_, err = c.containerService.Info(ctx, &execution.InfoRequest{ID: id})
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if err != nil && !isContainerdContainerNotExistError(err) {
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return nil, fmt.Errorf("failed to get sandbox container info for %q: %v", id, err)
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}
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if err == nil {
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return nil, fmt.Errorf("sandbox container %q is not fully stopped", id)
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}
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// TODO(random-liu): [P0] Cleanup shm created in RunPodSandbox.
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// TODO(random-liu): [P1] Remove permanent namespace once used.
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// Cleanup the sandbox root directory.
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sandboxRootDir := getSandboxRootDir(c.rootDir, id)
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if err := c.os.RemoveAll(sandboxRootDir); err != nil {
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return nil, fmt.Errorf("failed to remove sandbox root directory %q: %v",
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sandboxRootDir, err)
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}
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// Remove sandbox metadata from metadata store. Note that once the sandbox
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// metadata is successfully deleted:
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// 1) ListPodSandbox will not include this sandbox.
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// 2) PodSandboxStatus and StopPodSandbox will return error.
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// 3) On-going operations which have held the metadata reference will not be
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// affected.
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if err := c.sandboxStore.Delete(id); err != nil {
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return nil, fmt.Errorf("failed to delete sandbox metadata for %q: %v", id, err)
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}
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// Release the sandbox id from id index.
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c.sandboxIDIndex.Delete(id) // nolint: errcheck
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// Release the sandbox name reserved for the sandbox.
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c.sandboxNameIndex.ReleaseByKey(id)
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return &runtime.RemovePodSandboxResponse{}, nil
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}
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