[Unit] Description=Bridgehead (%i) Update Service [Service] Type=oneshot User=bridgehead ExecStartPre=-/srv/docker/bridgehead/bridgehead preUpdate %i ExecStart=/srv/docker/bridgehead/bridgehead update %i ExecStopPost=-/srv/docker/bridgehead/bridgehead postUpdate %i [Install] WantedBy=multi-user.target