--- /dev/null
+roles:
+- [mon.a, mon.b, mon.c, mgr.x, mds.a, osd.0, osd.1, osd.2, osd.3]
+- [client.2]
+- [client.1]
+- [client.0]
+
+openstack:
+- volumes: # attached to each instance
+ count: 1
+ size: 10 # GB
+
+log-rotate:
+ ceph-mds: 10G
+ ceph-osd: 10G
+