check_exitvpn_gw.py

#!/usr/bin/env python3

def check_exitvpn():
    from common import pinit

    photon, settings = pinit('check_exitvpn', verbose=True)

    uping = photon.ping_handler(net_if=settings['exitping']['interface'])
    aping = photon.ping_handler(net_if=settings['exitping']['interface'])

    uping.probe = settings['exitping']['urls']
    aping.probe = settings['exitping']['addresses']

    photon.m(
        'ping results',
        more=dict(
            ping_urls=uping.status,
            ping_addresses=aping.status
        )
    )

    for community in settings['common']['communities']:
        cif = settings['batman'][community]['interface']
        cbw = settings['batman'][community]['bandwidth']

        if uping.status['ratio'] <= settings['exitping']['min_ratio'] or aping.status['ratio'] <= settings['exitping']['min_ratio']:

            photon.m('exitvpn for %s - it seems you are not properly connected!' %(community))
            photon.m(
                'removing batman server flag for %s' %(cif),
                cmdd=dict(
                    cmd='sudo batctl -m %s gw off' %(cif)
                )
            )
            photon.m(
                'stopping isc-dhcp-server',
                cmdd=dict(
                    cmd='sudo initctl stop isc-dhcp-server'
                )
            )
        else:

            photon.m('exitvpn for %s - you are connected!!' %(community))
            photon.m(
                'setting batman server flag for %s (bw: %s)' %(cif, cbw),
                cmdd=dict(
                    cmd='sudo batctl -m %s gw server %s' %(cif, cbw)
                ),
            )
            photon.m(
                'starting isc-dhcp-server',
                cmdd=dict(
                    cmd='sudo initctl start isc-dhcp-server'
                ),
                critical=False
            )

if __name__ == '__main__':
    check_exitvpn()