Running CI on OS1 Nova stack

I have an experimental branch for ci.hibernate.org in which I'm adapting the cloudinit and puppet scripts to run on OpenStack Nova.

OS1 is a new cloud provided by Red Hat infrastructure; it's still not suggested to run production environments but could be soon good enough for our needs.

Benefits: costs nothing. Our project has resources capped though: we can use "just" 512 CPUs, 256GB RAM. Disk space is undefined.
It's outside of the VPN, and I already have a couple of Jenkins nodes running fine.