tests := []struct {
		name                          string
		sleepSeconds                  int64
		terminationGracePeriodSeconds int64
		expectErr                     bool
		expectedErr                   string
	}{
		{
			name:                          "valid seconds",
			sleepSeconds:                  5,
			terminationGracePeriodSeconds: 30,
		},
		{

			msg = fmt.Sprintf("Sleep lifecycle hook (%d) for Container %q in Pod %q failed - error: %v", handler.Sleep.Seconds, container.Name, format.Pod(pod), err)
			klog.V(1).ErrorS(err, "Sleep lifecycle hook for Container in Pod failed", "sleepSeconds", handler.Sleep.Seconds, "containerName", container.Name, "pod", klog.KObj(pod))
		}
		return msg, err
	default:
		err := fmt.Errorf("invalid handler: %v", handler)
		msg := fmt.Sprintf("Cannot run handler: %v", err)

      systemctl kill --kill-who=main "${container_runtime_name}"
      # Wait for a while, as we don't want to kill it again before it is really up.
      sleep 120
    else
      sleep "${SLEEP_SECONDS}"
    fi
  done
}

function kubelet_monitoring {
  echo "Wait for 2 minutes for kubelet to be functional"
  # TODO(andyzheng0831): replace it with a more reliable method if possible.
  sleep 120