sandbox: add a sandboxService interface to criService

so that we can add a fakeSandboxService to the criService in tests.

Signed-off-by: Abel Feng <fshb1988@gmail.com>

pkg/cri/server/sandbox_service.go

@@ -0,0 +1,47 @@
+/*
+   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 (
+	"fmt"
+
+	runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
+
+	"github.com/containerd/containerd/v2/client"
+	criconfig "github.com/containerd/containerd/v2/pkg/cri/config"
+	"github.com/containerd/containerd/v2/sandbox"
+)
+
+type criSandboxService struct {
+	cli    *client.Client
+	config *criconfig.Config
+}
+
+func newCriSandboxService(config *criconfig.Config, c *client.Client) *criSandboxService {
+	return &criSandboxService{
+		cli:    c,
+		config: config,
+	}
+}
+
+func (c *criSandboxService) SandboxController(config *runtime.PodSandboxConfig, runtimeHandler string) (sandbox.Controller, error) {
+	ociRuntime, err := c.config.GetSandboxRuntime(config, runtimeHandler)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get sandbox runtime: %w", err)
+	}
+	return c.cli.SandboxController(ociRuntime.Sandboxer), nil
+}