Migrating to the new VM-based architecture

Originally the "ntnusky" architecture were based around machines in three distinct roles:

1. Compute-nodes - The physical machines responsible for running the virtual machines for openstack.
2. Storage-nodes - The physical machines providing storage for the ceph-cluster which in turn provides storage to the virtual machines
3. Controller-nodes - The physical machines doing all the managemnet of the openstack cluster:
   1. Ceph monitors
   2. Openstack services
      1. API's
      2. Dashboard
      3. Compute schedulers/proxies/etc
      4. Neutron routers/dhcp/other networking
   3. MySQL databases
   4. Caching (memcached)

The architecture