Basic Ansible Playbooks

Ansible is a tool for managing servers en masse, much like Puppet or CFEngine. Ansible has a shallower learning curve than either of those systems, however, and it’s idempotent. How do I know it has a shallower learning curve? Because I learned enough of it to do actual useful work in only a couple of hours.

And before you reach for a dictionary, “idempotent” means that you can run the same script against your servers and have the end result be the same. You can run an Ansible script (or playb...