What's about:

Here you can find some examples of Ansible playbooks.

In no-roles there are simple playbooks.
In angular-spray-seed there is a more complex example that uses roles and deploys StarterSquad client/server seed (*).

Once you made available of the VM listed in the hosts file, run the associated playbook:

$ ansible-playbook -i hosts no-role/simple.yml -vv

$ ansible-playbook -i hosts no-role/ci.yml -vv

$ ansible-playbook -i hosts angular-spray-seed/site.yml -vv

Presentation

Look into the slides directory if you are interested.

(*) Tested with Ansible 1.3.4