This is not intended to be a full tutorial – there are several of those out there when you’ve got the time. This is intended to let you sit down in front of somebody’s Ansible setup and have a rough idea of what’s going on in those strange directory layouts and file formats.
Update: It’s worth noting that the video is a few years old now, and, while almost everything I still applies, some of the Ansible conventions have changed. In particular, a line like:
apt: update_cache=yes cache_valid_time=36000
would now more commonly be written as:
So you may notice a few changes in recent documentation, but this should still be a good introduction to the topic.