systemd: Enable systemd's auto-restart feature for server profiles

Systemd supervises services it has started and can act upon unexpected
scenarios.  This change will restart OpenVPN after 5 seconds if the OpenVPN
process exits unexpectedly.

The on-failure mode is the recommended mode by upstream systemd.

This change have been tested on a test server for some month, and it
works indeed as intended when provoking the OpenVPN process to stop.

Signed-off-by: David Sommerseth <davids@openvpn.net>
Acked-by: David Sommerseth <davids@openvpn.net>
Message-Id: <20170906235202.26551-1-davids@openvpn.net>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg15370.html
Signed-off-by: David Sommerseth <davids@openvpn.net>

diff --git a/distro/systemd/openvpn-server@.service.in b/distro/systemd/openvpn-server@.service.in
index b343868a9250e1c8211e324609402bfe05931abe..a8366a04d3d0443bcbf709182822eb2f56141747 100644 (file)
--- a/distro/systemd/openvpn-server@.service.in
+++ b/distro/systemd/openvpn-server@.service.in
@@ -18,6 +18,8 @@ DeviceAllow=/dev/net/tun rw
 ProtectSystem=true
 ProtectHome=true
 KillMode=process
+RestartSec=5s
+Restart=on-failure
 
 [Install]
 WantedBy=multi-user.target