overrides:
 ansible.cephlab: 
  vars: 
   quick_lvs_to_create: 4
openstack:
  - machine:
      disk: 10
    volumes:
      count: 4
      size: 20
roles:
- [mon.a, mgr.y, osd.0, osd.1]
- [mon.b, osd.2, osd.3]
- [mon.c, osd.4, osd.5]
- [mgr.x, client.0]