code: def get_cluster_role_env(cluster_role_env):
    
    parts = cluster_role_env.split('/')[:3]
    if len(parts) == 3:
      return (parts[0], parts[1], parts[2])
  
    if len(parts) == 2:
      return (parts[0], parts[1], "")
  
    if len(parts) == 1:
      return (parts[0], "", "")
  
    return ("", "", "")
docs: Parse cluster/[role]/[environ], supply empty string, if not provided