def make_default_dir(dir=GENCONF_DIR):
    if not os.path.exists(dir):
        log.info('Creating {}'.format(dir))
        os.makedirs(dir)
So users do not have to set the directories in the config.yaml,
dataset/ETHPy150Open dcos/dcos/ext/dcos-installer/dcos_installer/__init__.py/make_default_dir