Comment by Bernd Bausch for You can not use virtual box for compute But you can use virtual box for your controller In the lab you should use strong hardware for controller and small hardware for compute node but in operation it is diffrent

In principle yes, except for Packstack, which requires Centos or RHEL. But you can use their desktop versions. Caveat: Disable software that manages networks, firewalls and the like. OpenStack wants to manage them, too. This results in conflicts.