1Host neutron
 2   Hostname neutron
 3   User centos
 4Host controller
 5   Hostname controller
 6   User centos
 7Host compute1
 8   Hostname compute1
 9   User centos
10Host compute2
11   Hostname compute2
12   User centos
13Host storage1
14   Hostname storage1
15   User ceph
16Host storage2
17   Hostname storage2
18   User ceph
19Host storage3
20   Hostname storage3
21   User ceph