Adds a systemd EnvironmentFile secret that contains the Gerrit
username & password for gerrit-queue.
Change-Id: I25acf87764c26774045138402b8a417b6813ee8f
Sets up the key set and adds an initial secret (besadii config with
tokens) to be deployed to whitby.
Change-Id: Ic07fd5e66b9e7a533013e04c35e052c2aa11f77d