Ceph

I can't run any ceph commands because there is no keyring from the servers I am attempting to do so.

ubuntu@mira107:~$ sudo ceph osd pool
2015-02-13 10:44:49.186463 7f58413bf700 -1 monclient(hunting): ERROR: missing keyring, cannot use cephx for authentication
2015-02-13 10:44:49.186472 7f58413bf700  0 librados: client.admin initialization error (2) No such file or directory
Error connecting to cluster: ObjectNotFound

But until this point there is no mention of needing to set the keyrings. The keyring section comes after. Ideally this would need to be the first item in the list.

There should be a `note` section if someone is coming from an already setup cluster, where the admin key might exist already.