Unable to specify IP address for websocket to bind to

By default the websocket server will listen on 0.0.0.0 which is not acceptable in a clustered environment where we are using haproxy to bind a virtual IP for ODL and load balance websocket connections. It is also unsafe to bind to 0.0.0.0. There is currently no way to specify the IP address to bind to, only config available is to change the port.