I am a recent convert to Ansible and I get the feeling I’ll be using it a lot in my day to day work as a system admin.
Here is an example of what Ansible can do for you:
ansible group1 --sudo -m shell -a "lvresize --resizefs --size 60GB /dev/mapper/vgroup1-var"
This resizes a partition on multiple servers all at once. Which is very handy. And this is just the tip of the iceberg on what Ansible can do!