Starting OpenVPN using Ubuntu Upstart

etc..init..openvpn-instance.conf

description     "OpenVPN service instance"
author          "C.c <ccik74@gmail.com>"


stop on runlevel [016]

respawn

instance $CONFIG_FILE

exec /usr/sbin/openvpn --config $CONFIG_FILE

etc..init..openvpn.conf

description     "OpenVPN service"
author          "C.c <ccik74@gmail.com>"

# in my case OpenVPN using MySQL to obtain client IPs
start on (runlevel [2345] and started mysql)
stop on runlevel [016]

task

script
        for conf in `ls /etc/openvpn/*.conf`
        do
                start openvpn-instance CONFIG_FILE=$conf
        done
end script