8.9. Required parameters for the Ansible hosts file

You must define the following parameters in the Ansible hosts file before you add Red Hat Enterprise Linux (RHEL) compute machines to your cluster.

Paramter	Description	Values
`ansible_user`	The SSH user that allows SSH-based authentication without requiring a password. If you use SSH key-based authentication, then you must manage the key with an SSH agent.	A user name on the system. The default value is `root`.
`ansible_become`	If the values of `ansible_user` is not root, you must set `ansible_become` to `True`, and the user that you specify as the `ansible_user` must be configured for passwordless sudo access.	`True`. If the value is not `True`, do not specify and define this parameter.
`openshift_kubeconfig_path`	Specifies a path and file name to a local directory that contains the `kubeconfig` file for your cluster.	The path and name of the configuration file.