def subcmd_build_parser(subcmd):
    """ build subcommand """
    subcmd.add_argument(
        '--tag',
        action='store',
        dest='tag',
        help=u'Tag of APB to build (ie. mysql-apb or docker.io/username/mysql-apb)'
    )

    subcmd.add_argument(
        '--dockerfile',
        '-f',
        action='store',
        dest='dockerfile',
        help=u'Name of Dockerfile to build with'
    )

    return
build subcommand