Change IP and Routing Table in parallel

p-ifconfig.py

#!/usr/bin/python

import os, sys
import subprocess

procs = []

with open(sys.argv[1], 'r') as f:
  for line in f.readlines():
    if line.find("host1") > -1:
      ip = line.split(" ")[0]
      host = line.split(" ")[1].strip()
      host_id = int(host[4:])
      if host_id > 100 and host_id < 113:
        new_ip = "192.168.%d.%d"%(15, host_id-100)
        route = "/sbin/route add -net 192.168.0.0/16 gw 192.168.15.254"
      elif host_id > 112 and host_id < 125:
        new_ip = "192.168.%d.%d"%(16, host_id-112)
        route = "/sbin/route add -net 192.168.0.0/16 gw 192.168.16.254"
      else:
        new_ip = "192.168.%d.%d"%(17, host_id-124)
        route = "/sbin/route add -net 192.168.0.0/16 gw 192.168.17.254"
      print host, new_ip
      cmd = "ssh -o StrictHostKeyChecking=no root@%s ifconfig eth1 %s;%s"%(host, new_ip, route)
      proc = subprocess.Popen(cmd, shell=True)
      procs.append(proc)

for proc in procs:
  proc.wait()



print "Done"