Merge pull request #880 from rajasec/exec-status

Not exec a container from stopped state

Author: hqhq

exec.go

@@ -9,6 +9,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/opencontainers/runc/libcontainer"
 	"github.com/opencontainers/runc/libcontainer/utils"
 	"github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/urfave/cli"
@@ -101,6 +102,13 @@ func execProcess(context *cli.Context) (int, error) {
 	if err != nil {
 		return -1, err
 	}
+	status, err := container.Status()
+	if err != nil {
+		return -1, err
+	}
+	if status == libcontainer.Stopped {
+		return -1, fmt.Errorf("cannot exec a container that has run and stopped")
+	}
 	path := context.String("process")
 	if path == "" && len(context.Args()) == 1 {
 		return -1, fmt.Errorf("process args cannot be empty")