code: func (ds *dockerService) getContainerLogPath(containerID string) (string, string, error) {
  	info, err := ds.client.InspectContainer(containerID)
  	if err != nil {
  		return "", "", fmt.Errorf("failed to inspect container %q: %v", containerID, err)
  	}
  	return info.Config.Labels[containerLogPathLabelKey], info.LogPath, nil
  }
docs: // getContainerLogPath returns the container log path specified by kubelet and the real
  // path where docker stores the container log.