Check ipsec VPN status

check_vpn.py

import re
import os
import subprocess


def get_vpn_names(path):
    with open(path, 'r') as f:
        return re.findall(r'conn ([\w]+)', read)


def check_vpn(vpn_name):
    result = subprocess.check_output(['ipsec', 'status', vpn_name])
    if 'ESTABLISHED' in result:
        return True
    return False


def up_vpn(vpn_name):
    result = subprocess.check_output(['ipsec', 'up', vpn_name])
    if 'connection \'{}\' established successfully'.format(vpn_name) in result:
        return True
    return False


if __name__ == '__main__':
    vpns_to_check = get_vpn_names('/etc/ipsec.conf')
    for vpn in vpns_to_check:
        if check_vpn(vpn):
            up_vpn(vpn)
    return len(vpns_to_check)