code: func ValidateRecyclerPodTemplate(pod *v1.Pod) error {
  	if len(pod.Spec.Volumes) < 1 {
  		return fmt.Errorf("does not contain any volume(s)")
  	}
  	return nil
  }
docs: // Check validity of recycle pod template
  // List of checks:
  // - at least one volume is defined in the recycle pod template
  // If successful, returns nil
  // if unsuccessful, returns an error.