116 lines
4.3 KiB
Go
116 lines
4.3 KiB
Go
/*
|
|
Copyright The containerd 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 (
|
|
"github.com/containerd/containerd"
|
|
"github.com/containerd/containerd/errdefs"
|
|
"github.com/containerd/containerd/log"
|
|
"github.com/pkg/errors"
|
|
"github.com/sirupsen/logrus"
|
|
"golang.org/x/net/context"
|
|
runtime "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
|
|
|
|
"github.com/containerd/containerd/pkg/cri/store"
|
|
sandboxstore "github.com/containerd/containerd/pkg/cri/store/sandbox"
|
|
)
|
|
|
|
// RemovePodSandbox removes the sandbox. If there are running containers in the
|
|
// sandbox, they should be forcibly removed.
|
|
func (c *criService) RemovePodSandbox(ctx context.Context, r *runtime.RemovePodSandboxRequest) (*runtime.RemovePodSandboxResponse, error) {
|
|
sandbox, err := c.sandboxStore.Get(r.GetPodSandboxId())
|
|
if err != nil {
|
|
if err != store.ErrNotExist {
|
|
return nil, errors.Wrapf(err, "an error occurred when try to find sandbox %q",
|
|
r.GetPodSandboxId())
|
|
}
|
|
// Do not return error if the id doesn't exist.
|
|
log.G(ctx).Tracef("RemovePodSandbox called for sandbox %q that does not exist",
|
|
r.GetPodSandboxId())
|
|
return &runtime.RemovePodSandboxResponse{}, nil
|
|
}
|
|
// Use the full sandbox id.
|
|
id := sandbox.ID
|
|
|
|
// If the sandbox is still running or in an unknown state, forcibly stop it.
|
|
state := sandbox.Status.Get().State
|
|
if state == sandboxstore.StateReady || state == sandboxstore.StateUnknown {
|
|
logrus.Infof("Forcibly stopping sandbox %q", id)
|
|
if err := c.stopPodSandbox(ctx, sandbox); err != nil {
|
|
return nil, errors.Wrapf(err, "failed to forcibly stop sandbox %q", id)
|
|
}
|
|
}
|
|
|
|
// Return error if sandbox network namespace is not closed yet.
|
|
if sandbox.NetNS != nil {
|
|
nsPath := sandbox.NetNS.GetPath()
|
|
if closed, err := sandbox.NetNS.Closed(); err != nil {
|
|
return nil, errors.Wrapf(err, "failed to check sandbox network namespace %q closed", nsPath)
|
|
} else if !closed {
|
|
return nil, errors.Errorf("sandbox network namespace %q is not fully closed", nsPath)
|
|
}
|
|
}
|
|
|
|
// 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, errors.Wrapf(err, "failed to remove container %q", cntr.ID)
|
|
}
|
|
}
|
|
|
|
// Cleanup the sandbox root directories.
|
|
sandboxRootDir := c.getSandboxRootDir(id)
|
|
if err := ensureRemoveAll(ctx, sandboxRootDir); err != nil {
|
|
return nil, errors.Wrapf(err, "failed to remove sandbox root directory %q",
|
|
sandboxRootDir)
|
|
}
|
|
volatileSandboxRootDir := c.getVolatileSandboxRootDir(id)
|
|
if err := ensureRemoveAll(ctx, volatileSandboxRootDir); err != nil {
|
|
return nil, errors.Wrapf(err, "failed to remove volatile sandbox root directory %q",
|
|
volatileSandboxRootDir)
|
|
}
|
|
|
|
// Delete sandbox container.
|
|
if err := sandbox.Container.Delete(ctx, containerd.WithSnapshotCleanup); err != nil {
|
|
if !errdefs.IsNotFound(err) {
|
|
return nil, errors.Wrapf(err, "failed to delete sandbox container %q", id)
|
|
}
|
|
log.G(ctx).Tracef("Remove called for sandbox container %q that does not exist", id)
|
|
}
|
|
|
|
// 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
|
|
}
|