from jnpr.junos import Device
from jnpr.junos.utils.config import Config
import sys
import argparse

def main(argv):
    parser = argparse.ArgumentParser()
    parser.add_argument("h", help="host IP address")
    parser.add_argument("f", help="configuration filename")
    parser.add_argument("user", help="username")
    parser.add_argument("pass", help="password")
    args = parser.parse_args()

    dev = Device(host=args.h, user=args.user, password=args.pass )
    dev.open()

    with Config(dev, mode='private') as cu:
        cu.load(path=args.f, format='text', override=True)
        cu.commit()
    dev.close()

if __name__ == "__main__":
    main(sys.argv[1:])