gistfile1.py

#!/usr/local/bin/python

import re
import os
import subprocess

def createJail(jail = '', ip = ''):
  #Prompts user for Jail parameters and builds Jail filesystem
  conf_file = '/etc/rc.conf'
  jail = raw_input('Jail name (whatever.uoregon.edu): ')
  ip = raw_input('Jail IP (10.0.0.xxx): ')

  confirm = '\nPlease review your selections\nJail: "' + jail + '"\nIP: "' + ip + '"\nType "Yes/No" to continue.\n'
  conf = raw_input(confirm)
  
  if conf.lower() == 'yes':
    print 'Bulding Jail %s...' % (jail)
    #Copies base jail to new jail dir
    subprocess.call('cpdup /var/jails/www-base/ /var/jails/' + jail, shell=True)

    #dict = {}
    #tuple = ()
    li = []

    #Appends ifconfig alias to rc.conf
    fileHandle = open(conf_file)
    fileList = fileHandle.readlines()

    for fileLine in fileList:
       #print '>>', fileLine
       a = re.compile('^ifconfig_em0_alias([0-9]+)=.*$')
       m = a.search(fileLine)
       if m:
        li.append(m.group(1))

    fileHandle.close() 

    li.sort(key=int, reverse=True)
    new_alias = 'ifconfig_em0_alias' + str(int(li[0]) + 1) + '="' + ip + '/32"\n'
    fileList.append(new_alias)

    fileHandle = open(conf_file + '.new', 'w')
    fileHandle.writelines(fileList)
    fileHandle.close()

    os.rename(conf_file, conf_file + '.old')
    os.rename(conf_file + '.new', conf_file)

    #Instantiates new alias
    subprocess.call('ifconfig em0 alias ' + ip + '/32', shell=True)

    #Runs ezjail-admin to setup jail
    subprocess.call('ezjail-admin create -x ' + jail + ' ' + ip, shell=True)

    #Runs ezjail.sh to startup new jail
    subprocess.call('/usr/local/etc/rc.d/ezjail.sh start ' + jail, shell=True)
    
    #Finish
    print 'Done'
  else:
    createJail()

createJail()