#!/usr/bin/python

import napalm, re, datetime, os

path = os.getcwd()

try:
	os.stat(path+'/backup_config')
except:
	os.mkdir(path+'/backup_config')

driver = napalm.get_network_driver('ios')

### device list to backup configuration
device_list = ['192.168.10.101','192.168.10.102']

### username and password
user = 'admin'
passwd = 'cisco123'

for ip in device_list:

  device = driver(hostname=ip, username=user, password=passwd)
	device.open()
	config = device.get_config(retrieve='running')
	facts = device.get_facts()

	run_conf = config['running']
  #erase lines with "Building configuration", "Current Configuration" and "end"
  run_config = re.sub(r'Building configuration.*|Current configuration.*|end','',run_conf)

	date = datetime.datetime.now().strftime('%Y-%m-%d_%H:%M:%S')
	hostname = facts['hostname']

  ### create file with running config in backup_config folder
	file = open(path+'/backup_config/'+hostname+'_'+date+'_'+'running-config','w')
	file.write(run_config)
  file.close()
	device.close()