The *freeradius* role is used to install and configure FreeRADIUS. The
configuration system for it is extremely complicated, with dozens of
files in several directories. The default configuration has a plethora
of options enabled that are not needed in most cases, so they are
disabled here. Since the initial (and perhaps only) use case I have for
RADIUS is WiFi authentication via certificates, only the EAP-TLS
mechanism is enabled currently.
Dustin