NC-get-config-xpath.py

#!/usr/bin/env python
#
# Copyright (c) 2017  Jason Frazier <jafrazie@cisco.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# This script retrieves entire configuration from a network element via NETCONF 
# prints it out in a "pretty" XML tree.

import sys
from argparse import ArgumentParser
from ncclient import manager
import xml.dom.minidom

if __name__ == '__main__':
    parser = ArgumentParser(description='Select options.')
    # Input parameters
    parser.add_argument('--host', type=str, required=True,
                        help="The device IP or DN")
    parser.add_argument('-u', '--username', type=str, default='cisco',
                        help="Go on, guess!")
    parser.add_argument('-p', '--password', type=str, default='cisco',
                        help="Yep, this one too! ;-)")
    parser.add_argument('--port', type=int, default=830,
                        help="Specify this if you want a non-default port")
    args = parser.parse_args()
    
    m =  manager.connect(host=args.host,
                         port=args.port,
                         username=args.username,
                         password=args.password,
                         device_params={'name':"csr"})
       # Pretty print the XML reply
    xmlDom = xml.dom.minidom.parseString( str( m.get_config( source='running', filter=('xpath', '/native/hostname'))))
    print xmlDom.toprettyxml( indent = "  " )