code: def make(parser):
      
      rgw_parser = parser.add_subparsers(dest='subcommand')
      rgw_parser.required = True
      rgw_create = rgw_parser.add_parser(
          'create',
          help='Create an RGW instance'
          )
      rgw_create.add_argument(
          'rgw',
          metavar='HOST[:NAME]',
          nargs='+',
          type=colon_separated,
          help='host (and optionally the daemon name) to deploy on. \
                  NAME is automatically prefixed with \'rgw.\'',
          )
      parser.set_defaults(
          func=rgw,
          )
docs: Ceph RGW daemon management