Roles are the most complicated and yet simplest aspect of Ansible to learn. I've mentioned before that Ansible's ad-hoc mode often is overlooked as just a way to learn how to use Ansible. I couldn't ...

Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that ...