RIght now when the user sends reset openvpn interface vtun1 A SIGUSR1 is send to the OpenVPNM proces sin question.
This has the disadvantage that Key files are not reloaded from disk even when they have been updated (--persistent-key option)
Insted of sending SIGUSR1 via the MGMT socket, just kill -9 the process and restart it using start-stop-daemon see interfaces-openvpn-py as example.