Description of problem:

In section 2.10 step 3 details modifying the ~/.ssh/config file on the ansible admin node. If this is a fresh ansible install on this node the config file will actually need to be created as it will not exist.

We could re-word step 3 to say:

Modify or create (using a utility such as vi) the ~/.ssh/config file of the Ansible administration node so that Ansible can log in to Ceph nodes as the user you created without requiring you to specify the -u <username> option each time you execute the ansible-playbook command. Replace <username> with the name of the user you created and <hostname> with a host name of a Ceph node: 

Host node1
   Hostname <hostname>
   User <username>
Host node2
   Hostname <hostname>
   User <username>
Host node3
   Hostname <hostname>
   User <username>

After editing or creating the ~/.ssh/config file on the Ansible administration node, ensure the permissions are correct: 

$ chmod 600 ~/.ssh/config

Version-Release number of selected component (if applicable):
RHCS 2.2