systemctl status openvpn
  ● openvpn.service - OpenVPN service
    Loaded: loaded (/lib/systemd/system/openvpn.service; enabled; vendor preset:
    Active: active (exited) since Tue 2019-08-20 17:23:13 CEST; 44min ago
    Process: 1485 ExecStart=/bin/true (code=exited, status=0/SUCCESS)  Main PID: 1485 (code=exited, status=0/SUCCESS)

ago 20 17:23:13 raspberrypi systemd[1]: Starting OpenVPN service...
ago 20 17:23:13 raspberrypi systemd[1]: Started OpenVPN service.