Check manual page of openvpn_clients
OpenVPN client connections
This check uses the status file created by OpenVPN in order
to check the state of the client connections and also to measure
the inbound and outbound traffic. The traffic is measured raw -
i.e. including keepalive packages and headers - not just the payload.
Currently the linux agent is expecting the status file at
/etc/openvpn/openvpn-status.log. You can specify the path where
OpenVPN should create this file with the directive status = in you
The name of the OpenVPN connection (first column in the status file).
One service per active connection will be created. Please use
ignored_services if you want to restrict this.