[Lava-users] about dispatcher configure

I am ready to deploy a local lava single master demo system. The server and dispatcher had be installed in a single computer. In order to enable the server to kno the dispatcher(worker),Then how to configure something. Is doing this?: sudo lava-server manage workers add <HOSTNAME> ,that HOSTNAME is changed in /etc/lava-dispatcher/lava-slave file? And when did,How to see whether dispatcher is working already?