roles:
- [mon.a, mds.a, osd.0]
- [mon.b, mgr.x, osd.1]
- [mon.c, mgr.y, osd.2]
- [osd.3]
- [osd.4]
- [osd.5]
- [osd.6]
- [osd.7]
- [osd.8]
- [osd.9]
- [osd.10]
- [osd.11]
- [osd.12]
- [osd.13]
- [osd.14]
- [osd.15]
- [client.0]