allocate_ip_addresses.py 文件源码

def main():

    parser = argparse.ArgumentParser(
        description=('Allocates IP addresses on nodes in an inventory file.'),
        formatter_class=argparse.RawTextHelpFormatter)

    parser.add_argument('--inventory',
                        dest='inventory_file',
                        required=True,
                        help='The path to the inventory file.')

    # Handle error cases before attempting to parse
    # a command off the command line
    if len(sys.argv) == 1:
        parser.print_help()
        sys.exit(1)
    args = parser.parse_args()

    allocate_ips(args.inventory_file)