Comment 2 for bug 1852055

Boxiang via mail:

> BTW, in fact, before I met the problem, I found anther issue from ceph-nfs.log.
> The ganesha can not connect to the /run/dbus/system_bus_socket, So I change
> the kolla-ansible/share/kolla-ansible/ansible/roles/ceph/tasks/start_nfss.yml, add
> `` - "/run/:/run/:shared" `` under volumes section.