Your First Playbook

Part of the Ansible course

Ad hoc commands are great for a quick check or a one-off fix, but they do not scale to a real setup. You would need to remember and retype the exact ansible invocation every time, in the right order, with nobody else on the team knowing what you ran or why. Real automation lives in a file you can read, share, and run again with confidence: a playbook.

A playbook is a YAML file that describes one or more plays. Each play targets a group of hosts and runs a list of tasks against them, in order, every time, the same way. Instead of a script that says "do this, then this, then this," a playbook reads more like a checklist: here is the group of machines, here is what should be true on them. ...