ctr: add delete command

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

cmd/ctr/delete.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	gocontext "context"
+	"fmt"
+
+	"github.com/docker/containerd/api/execution"
+	"github.com/urfave/cli"
+)
+
+var deleteCommand = cli.Command{
+	Name:  "delete",
+	Usage: "delete a process from containerd store",
+	Flags: []cli.Flag{
+		cli.StringFlag{
+			Name:  "pid, p",
+			Usage: "new process id",
+		},
+	},
+	Action: func(context *cli.Context) error {
+		executionService, err := getExecutionService(context)
+		if err != nil {
+			return err
+		}
+
+		id := context.Args().First()
+		if id == "" {
+			return fmt.Errorf("container id must be provided")
+		}
+
+		pid := context.String("pid")
+		if pid != "" {
+			_, err = executionService.DeleteProcess(gocontext.Background(), &execution.DeleteProcessRequest{
+				ContainerID: id,
+				ProcessID:   pid,
+			})
+			if err != nil {
+				return err
+			}
+		}
+
+		if _, err := executionService.Delete(gocontext.Background(), &execution.DeleteContainerRequest{
+			ID: id,
+		}); err != nil {
+			return err
+		}
+
+		return nil
+	},
+}

cmd/ctr/main.go

@@ -37,6 +37,7 @@ containerd client
 		runCommand,
 		execCommand,
 		eventsCommand,
+		deleteCommand,
 	}
 	app.Before = func(context *cli.Context) error {
 		if context.GlobalBool("debug") {