containerd: add state flag to specify state dir

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>

client_test.go

@@ -66,6 +66,7 @@ func TestMain(m *testing.M) {
 
 		err := ctrd.start("containerd", address, []string{
 			"--root", defaultRoot,
+			"--state", defaultState,
 			"--log-level", "debug",
 		}, buf, buf)
 		if err != nil {

client_unix_test.go

@@ -8,6 +8,7 @@ import (
 
 const (
 	defaultRoot    = "/var/lib/containerd-test"
+	defaultState   = "/run/containerd-test"
 	defaultAddress = "/run/containerd-test/containerd.sock"
 )
 

client_windows_test.go

@@ -17,7 +17,8 @@ const (
 var (
 	dockerLayerFolders []string
 
-	defaultRoot = filepath.Join(os.Getenv("programfiles"), "containerd", "root-test")
+	defaultRoot  = filepath.Join(os.Getenv("programfiles"), "containerd", "root-test")
+	defaultState = filepath.Join(os.Getenv("programfiles"), "containerd", "state-test")
 )
 
 func platformTestSetup(client *Client) error {

cmd/containerd/main.go

@@ -66,6 +66,10 @@ func main() {
 			Name:  "root",
 			Usage: "containerd root directory",
 		},
+		cli.StringFlag{
+			Name:  "state",
+			Usage: "containerd state directory",
+		},
 	}
 	app.Commands = []cli.Command{
 		configCommand,
@@ -156,6 +160,10 @@ func applyFlags(context *cli.Context, config *server.Config) error {
 			name: "root",
 			d:    &config.Root,
 		},
+		{
+			name: "state",
+			d:    &config.State,
+		},
 		{
 			name: "address",
 			d:    &config.GRPC.Address,