I've been getting a few private messages from some of you looking for some of the latest How-To guides and I'm not sure if you have seen, but the Aruba Solution Exchange is now in Beta3.
ASE will give you the config for the controller, switch or IAP to talk to ClearPass
https://ase.arubanetworks.com/
Its been awhile since I posted on this, but there is a Cisco WLC and CPPM config for single SSID onboarding.