systemd: Remove read-only flag on volume

* The read-only flag will create issues with those trying to add
  certificates to the data volume.

Author: kylemanna

init/[email protected]

@@ -27,7 +27,7 @@
 # 5. Verify service start-up with:
 #    `systemctl status [email protected]`
 #    `journalctl --unit [email protected]`
-# 
+#
 # For more information, see the systemd manual pages.
 #
 [Unit]
@@ -64,7 +64,7 @@ ExecStartPre=-/usr/bin/docker pull $IMG
 ExecStartPre=/bin/sh -c 'test -z "$IP6_PREFIX" && exit 0; sysctl net.ipv6.conf.all.forwarding=1'
 
 # Main process
-ExecStart=/usr/bin/docker run --rm --privileged -v ${DATA_VOL}:/etc/openvpn:ro --name ${NAME} -p ${PORT} ${IMG} ovpn_run $ARGS
+ExecStart=/usr/bin/docker run --rm --privileged -v ${DATA_VOL}:/etc/openvpn --name ${NAME} -p ${PORT} ${IMG} ovpn_run $ARGS
 
 # IPv6: Add static route for IPv6 after it starts up
 ExecStartPost=/bin/sh -c 'test -z "${IP6_PREFIX}" && exit 0; sleep 1; ip route replace ${IP6_PREFIX} via $(docker inspect -f "{{ .NetworkSettings.GlobalIPv6Address }}" $NAME ) dev docker0'