IP address = None about autovpn HOT 7 CLOSED

import time
import boto
import boto.ec2
import sys

keyname=sys.argv[1]
instance_type=sys.argv[2]
region=sys.argv[3]
ami=sys.argv[4]
port=sys.argv[5]
if region:
    conn_region = boto.ec2.connect_to_region(region)
else:
    conn_region = boto.connect_ec2()

def auto_vpn(ami=ami,
                    instance_type=instance_type,
                    key_name=keyname,
                    group_name="vpn-server",
                    ssh_port="22",
                    vpn_port=port,
                    cidr="0.0.0.0/0",
                    tag="vpn-server",
                    user_data=None):


    ec2 = conn_region

    try:
        f = {'group-name':group_name,'vpc-id':'vpc-11111111'}
        group = ec2.get_all_security_groups(filters=f)[0]
    except ec2.ResponseError, e:
        if e.code == 'InvalidGroup.NotFound':
            group = ec2.create_security_group(group_name,
                                              'A group that allows VPN access',
                                              vpc_id='vpc-11111111')
            group.authorize('tcp',ssh_port,ssh_port,cidr)
            group.authorize('udp',vpn_port,vpn_port,cidr)
        else:
            str('haller')
            raise

    if int(port) != int(1194):
        try:
            mgroup = ec2.get_all_security_groups(groupnames=[group_name])[0]
            mgroup.authorize('udp',vpn_port,vpn_port,cidr)
        except ec2.ResponseError, e:
            if e.code == 'InvalidPermission.Duplicate':
                '''fail here'''
            else:
                raise

    reservation = ec2.run_instances(ami,
        key_name=key_name,
        security_group_ids=['sg-11111111'],
        instance_type=instance_type,
        user_data=user_data,
        subnet_id='subnet-11111111')

    instance = reservation.instances[0]
    while instance.state != 'running':
        time.sleep(30)
        instance.update()

        instance.add_tag(tag)

    global host
    host = instance.ip_address
    print "%s" % host


if __name__ == "__main__":
    auto_vpn()