Adding MONs

MONs are added via a new ceph-mon unit.

1. Ensure that the cluster is in a healthy state. On any MON (such as the leader unit here) run a status check:

   juju ssh ceph-mon/leader sudo ceph status
   

2. Add a containerised ceph-mon unit to existing machine #3:

   juju add-unit --to lxd:3 ceph-mon
   

Recall that a cluster should always have an odd number of MONs.