Ansible Wrapper presentation

The Ansible Wrapper is a small shell script (./ansible) that does two things :

It calls the bootstrap playbook with the right environment variables
It calls the target playbooks (allinone.yml for instance) with the right inventory file

Bootstrap

Usually, when machines are provisioned, they are not ready to be used in Ansible. For example :

The ansible wrapper will :

Make sure the SSH Host Key of the target machine is trusted (otherwise Ansible would complain...)
Do a password authentication for the first time (thanks to sshpass)
Add your SSH Keys to the authorized_keys
Create a regular user (by default: redhat)
Install and configure sudo
Register the machine with the Red Hat Network (RHN)
Attach a subscription pool

To use the wrapper, you need to make sure you have sshpass installed :

sshpass -V

If not installed, setup sshpass as explained here : https://gist.github.com/arunoda/7790979

To bootstrap a machine, just use :

./ansible bootstrap machine1.compute.internal

Tip : You can pass multiple machine on the command line to bootstrap them all at the same time.

The wrapper, will then ask you a few questions :

The root password. If you have already setup SSK Key Authentication, you can just hit enter.
Your RHN login
Your RHN password
The Pool ID that you would like to use. If you do not provide a Pool ID, no pool will be attached and you will have to do it later manually.

Once your machines are bootstrapped, you can launch the target playbook (allinone for instance) with :

./ansible play allinone

Note : the play command is just a shortcut to ansible-playbook -i <target>.host <target>.yml