CRI: implement Controller.Delete for SandboxAPI

Signed-off-by: WangLei <wllenyj@linux.alibaba.com>

pkg/cri/sbserver/helpers.go

@@ -121,18 +121,6 @@ func makeContainerName(c *runtime.ContainerMetadata, s *runtime.PodSandboxMetada
 	}, nameDelimiter)
 }
 
-// getSandboxRootDir returns the root directory for managing sandbox files,
-// e.g. hosts files.
-func (c *criService) getSandboxRootDir(id string) string {
-	return filepath.Join(c.config.RootDir, sandboxesDir, id)
-}
-
-// getVolatileSandboxRootDir returns the root directory for managing volatile sandbox files,
-// e.g. named pipes.
-func (c *criService) getVolatileSandboxRootDir(id string) string {
-	return filepath.Join(c.config.StateDir, sandboxesDir, id)
-}
-
 // getContainerRootDir returns the root directory for managing container files,
 // e.g. state checkpoint.
 func (c *criService) getContainerRootDir(id string) string {

pkg/cri/sbserver/helpers_linux.go

@@ -65,6 +65,18 @@ func getCgroupsPath(cgroupsParent, id string) string {
 	return filepath.Join(cgroupsParent, id)
 }
 
+// getSandboxRootDir returns the root directory for managing sandbox files,
+// e.g. hosts files.
+func (c *criService) getSandboxRootDir(id string) string {
+	return filepath.Join(c.config.RootDir, sandboxesDir, id)
+}
+
+// getVolatileSandboxRootDir returns the root directory for managing volatile sandbox files,
+// e.g. named pipes.
+func (c *criService) getVolatileSandboxRootDir(id string) string {
+	return filepath.Join(c.config.StateDir, sandboxesDir, id)
+}
+
 // getSandboxHostname returns the hostname file path inside the sandbox root directory.
 func (c *criService) getSandboxHostname(id string) string {
 	return filepath.Join(c.getSandboxRootDir(id), "hostname")

pkg/cri/sbserver/podsandbox/controller.go

@@ -83,11 +83,6 @@ func New(
 
 var _ sandbox.Controller = (*Controller)(nil)
 
-func (c *Controller) Delete(ctx context.Context, sandboxID string) (*api.ControllerDeleteResponse, error) {
-	//TODO implement me
-	panic("implement me")
-}
-
 func (c *Controller) Status(ctx context.Context, sandboxID string) (*api.ControllerStatusResponse, error) {
 	//TODO implement me
 	panic("implement me")

pkg/cri/sbserver/podsandbox/sandbox_delete.go

@@ -0,0 +1,60 @@
+/*
+   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 podsandbox
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/containerd/containerd"
+	api "github.com/containerd/containerd/api/services/sandbox/v1"
+	"github.com/containerd/containerd/errdefs"
+	"github.com/containerd/containerd/log"
+)
+
+func (c *Controller) Delete(ctx context.Context, sandboxID string) (*api.ControllerDeleteResponse, error) {
+	sandbox, err := c.sandboxStore.Get(sandboxID)
+	if err != nil {
+		if !errdefs.IsNotFound(err) {
+			return nil, fmt.Errorf("an error occurred when try to find sandbox %q: %w", sandboxID, err)
+		}
+		// Do not return error if the id doesn't exist.
+		log.G(ctx).Tracef("Sandbox controller Delete called for sandbox %q that does not exist", sandboxID)
+		return &api.ControllerDeleteResponse{}, nil
+	}
+
+	// Cleanup the sandbox root directories.
+	sandboxRootDir := c.getSandboxRootDir(sandboxID)
+	if err := ensureRemoveAll(ctx, sandboxRootDir); err != nil {
+		return nil, fmt.Errorf("failed to remove sandbox root directory %q: %w", sandboxRootDir, err)
+	}
+	volatileSandboxRootDir := c.getVolatileSandboxRootDir(sandboxID)
+	if err := ensureRemoveAll(ctx, volatileSandboxRootDir); err != nil {
+		return nil, fmt.Errorf("failed to remove volatile sandbox root directory %q: %w",
+			volatileSandboxRootDir, 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: %w", sandboxID, err)
+		}
+		log.G(ctx).Tracef("Sandbox controller Delete called for sandbox container %q that does not exist", sandboxID)
+	}
+
+	return &api.ControllerDeleteResponse{}, nil
+}

pkg/cri/sbserver/sandbox_remove.go

@@ -21,7 +21,6 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/containerd/containerd"
 	"github.com/containerd/containerd/errdefs"
 	"github.com/containerd/containerd/log"
 
@@ -81,24 +80,8 @@ func (c *criService) RemovePodSandbox(ctx context.Context, r *runtime.RemovePodS
 		}
 	}
 
-	// Cleanup the sandbox root directories.
-	sandboxRootDir := c.getSandboxRootDir(id)
-	if err := ensureRemoveAll(ctx, sandboxRootDir); err != nil {
-		return nil, fmt.Errorf("failed to remove sandbox root directory %q: %w",
-			sandboxRootDir, err)
-	}
-	volatileSandboxRootDir := c.getVolatileSandboxRootDir(id)
-	if err := ensureRemoveAll(ctx, volatileSandboxRootDir); err != nil {
-		return nil, fmt.Errorf("failed to remove volatile sandbox root directory %q: %w",
-			volatileSandboxRootDir, 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: %w", id, err)
-		}
-		log.G(ctx).Tracef("Remove called for sandbox container %q that does not exist", id)
+	if _, err := c.sandboxController.Delete(ctx, id); err != nil {
+		return nil, fmt.Errorf("failed to delete sandbox %q: %w", id, err)
 	}
 
 	// Remove sandbox from sandbox store. Note that once the sandbox is successfully