roles:
- [mon.0, mds.0, osd.0]
- [mon.1, osd.1]
- [mon.2, client.0]

tasks:
- ceph:
- kclient: [client.0]
- interactive:

targets:
  ubuntu@<host1>: ssh-rsa <host1 key>
  ubuntu@<host2>: ssh-rsa <host2 key>
  ubuntu@<host3>: ssh-rsa <host3 key>