5a119200b8
This commit contains changes to create/delete permanent namespace for a sandbox container. Signed-off-by: Abhinandan Prativadi <abhi@docker.com>
108 lines
3.8 KiB
Go
108 lines
3.8 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package server
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/containerd/containerd"
|
|
"github.com/containerd/containerd/errdefs"
|
|
"github.com/golang/glog"
|
|
"golang.org/x/net/context"
|
|
"k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
|
|
|
|
"github.com/kubernetes-incubator/cri-containerd/pkg/store"
|
|
)
|
|
|
|
// RemovePodSandbox removes the sandbox. If there are running containers in the
|
|
// sandbox, they should be forcibly removed.
|
|
func (c *criContainerdService) RemovePodSandbox(ctx context.Context, r *runtime.RemovePodSandboxRequest) (retRes *runtime.RemovePodSandboxResponse, retErr error) {
|
|
glog.V(2).Infof("RemovePodSandbox for sandbox %q", r.GetPodSandboxId())
|
|
defer func() {
|
|
if retErr == nil {
|
|
glog.V(2).Infof("RemovePodSandbox %q returns successfully", r.GetPodSandboxId())
|
|
}
|
|
}()
|
|
|
|
sandbox, err := c.sandboxStore.Get(r.GetPodSandboxId())
|
|
if err != nil {
|
|
if err != store.ErrNotExist {
|
|
return nil, fmt.Errorf("an error occurred when try to find sandbox %q: %v",
|
|
r.GetPodSandboxId(), err)
|
|
}
|
|
// Do not return error if the id doesn't exist.
|
|
glog.V(5).Infof("RemovePodSandbox called for sandbox %q that does not exist",
|
|
r.GetPodSandboxId())
|
|
return &runtime.RemovePodSandboxResponse{}, nil
|
|
}
|
|
// Use the full sandbox id.
|
|
id := sandbox.ID
|
|
|
|
// Return error if sandbox container is not fully stopped.
|
|
// TODO(random-liu): [P0] Make sure network is torn down, may need to introduce a state.
|
|
_, err = sandbox.Container.Task(ctx, nil)
|
|
if err != nil && !errdefs.IsNotFound(err) {
|
|
return nil, fmt.Errorf("failed to get sandbox container info for %q: %v", id, err)
|
|
}
|
|
if err == nil {
|
|
return nil, fmt.Errorf("sandbox container %q is not fully stopped", id)
|
|
}
|
|
|
|
// Remove all containers inside the sandbox.
|
|
// NOTE(random-liu): container could still be created after this point, Kubelet should
|
|
// not rely on this behavior.
|
|
// TODO(random-liu): Introduce an intermediate state to avoid container creation after
|
|
// this point.
|
|
cntrs := c.containerStore.List()
|
|
for _, cntr := range cntrs {
|
|
if cntr.SandboxID != id {
|
|
continue
|
|
}
|
|
_, err = c.RemoveContainer(ctx, &runtime.RemoveContainerRequest{ContainerId: cntr.ID})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to remove container %q: %v", cntr.ID, err)
|
|
}
|
|
}
|
|
|
|
// Cleanup the sandbox root directory.
|
|
sandboxRootDir := getSandboxRootDir(c.rootDir, id)
|
|
if err := c.os.RemoveAll(sandboxRootDir); err != nil {
|
|
return nil, fmt.Errorf("failed to remove sandbox root directory %q: %v",
|
|
sandboxRootDir, err)
|
|
}
|
|
|
|
// Delete sandbox container.
|
|
if err := sandbox.Container.Delete(ctx, containerd.WithSnapshotCleanup); err != nil {
|
|
if !errdefs.IsNotFound(err) {
|
|
return nil, fmt.Errorf("failed to delete sandbox container %q: %v", id, err)
|
|
}
|
|
glog.V(5).Infof("Remove called for sandbox container %q that does not exist", id, err)
|
|
}
|
|
|
|
// Remove sandbox from sandbox store. Note that once the sandbox is successfully
|
|
// deleted:
|
|
// 1) ListPodSandbox will not include this sandbox.
|
|
// 2) PodSandboxStatus and StopPodSandbox will return error.
|
|
// 3) On-going operations which have held the reference will not be affected.
|
|
c.sandboxStore.Delete(id)
|
|
|
|
// Release the sandbox name reserved for the sandbox.
|
|
c.sandboxNameIndex.ReleaseByKey(id)
|
|
|
|
return &runtime.RemovePodSandboxResponse{}, nil
|
|
}
|