If you have to handle secrets for workers or pass other variables, create a file in here with the same name as the machine and store it in there. It will be automatically made available as part of the ansible playbook.
You will always have to set the following variables to configure a host:
secret
: the jenkins slave secrets
Variables that might be available for you to change depending on what init system your host will be running:
server_jobs
: the number of parallel jobs to run on a hostserver_ram
: how much memory the slave should assign to java-base (defaults to "128m")