openvpn: Make sure OpenVPN is started after the network has been configured

Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>

openvpn/openvpn@.service

@@ -2,7 +2,7 @@
 Description=OpenVPN connection to %i
 PartOf=openvpn.service
 ReloadPropagatedFrom=openvpn.service
-After=network.target
+After=vrf_external-online.target
 CapabilityBoundingSet=CAP_IPC_LOCK CAP_NET_ADMIN CAP_NET_BIND_SERVICE CAP_NET_RAW CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_DAC_OVERRIDE CAP_AUDIT_WRITE
 
 [Service]