from sys import argv
  import csv
  import getpass
  import netmiko
  from netmiko import ConnectHandler
  
  # Creditials
  username = input('Username: ')
  password = getpass.getpass('Password: ')
  ikepsk = input('IKE Pre-shared-key: ')
  
  # Define Nodes
  script, csv_file = argv
  reader = csv.DictReader(open(csv_file, 'rt'))
  
  # Define all Spokes
  all_spokes = []
  for line in reader:
      all_spokes.append(line)
  
  #Configure vrf
  for devices in all_spokes:
      devices['username'] = username
      devices['password'] = password
      net_connect = ConnectHandler(**devices)
      config_commands = ['ip vrf  WAN1']
      output = net_connect.send_config_set(config_commands)
      print(output)
  
  #Configure IKEv1 Crypto
  for devices in all_spokes:
      devices['username'] = username
      devices['password'] = password
      net_connect = ConnectHandler(**devices)
      config_commands = ['crypto keyring DMVPN vrf WAN1',
      'pre-shared-key address 0.0.0.0 key %s' %ikepsk,
      'crypto isakmp policy 10',
      'authentication pre-share',
      'encryption aes 256',
      'hash sha256',
      'lifetime 28800',
      'crypto isakmp profile DMVPN_isakmp',
      'match identity address 0.0.0.0',
      'keyring DMVPN',
      'vrf WAN1',
      'crypto ipsec transform-set ESP-AES256-SHA2 esp-aes 256 esp-sha256-hmac',
      'crypto ipsec profile DMVPN_ipsec',
      'set transform-set ESP-AES256-SHA2',
      'set pfs group14']
      output = net_connect.send_config_set(config_commands)
      print(output)
  
  # Configure Loopbacks
  c = 101
  for devices in all_spokes:
      devices['username'] = username
      devices['password'] = password
      net_connect = ConnectHandler(**devices)
      config_commands = ['interface loopback0',
      'ip address 10.99.99.' + str(c)+ ' 255.255.255.255']
      output = net_connect.send_config_set(config_commands)
      #print(output)
      c = c + 1
  
  # Configure Spoke Tunnels - IP starting at 10 and incrementing by 1
  a = 10
  for devices in all_spokes:
      net_connect = ConnectHandler(**devices)
      config_commands = ['interface tunnel100',
      'ip address 10.255.254.' + str(a)+ ' 255.255.255.0',
      'tunnel source gig0/0',
      'tunnel mode gre multipoint',
      'ip nhrp map multicast 192.168.122.11',
      'ip nhrp map multicast 192.168.122.12',
      'ip nhrp map 10.255.254.1 192.168.122.11',
      'ip nhrp map 10.255.254.2 192.168.122.12',
      'ip nhrp nhs 10.255.254.1 priority 10',
      'ip nhrp nhs 10.255.254.2',
      'ip nhrp network-id 47884',
      'tunnel vrf WAN1',
      'tunnel protection ipsec profile DMVPN_ipsec']
      output = net_connect.send_config_set(config_commands)
      print(output)
      a = a + 1
  
  # EIGRP Configurations
  for devices in all_spokes:
      devices['username'] = username
      devices['password'] = password
      net_connect = ConnectHandler(**devices)
      config_commands = ['router eigrp DMVPN',
      'address-family ipv4 unicast autonomous-system 1000',
      'network 10.0.0.0',
      'eigrp stub']
      output = net_connect.send_config_set(config_commands)
      print(output)
  print ('DMVPN Spokes Configured')