Order

The playbook parameter order can be used to control the order hosts running tasks.

- name: Do something to hosts, in a random order
  hosts: all
  order: shuffle

  tasks:
    - ansible.builtin.debug:
        msg: "Hello world!"

This can be used to make the order of hosts more predictable, or more random. For example, the default order is inventory, which would mean one hosts is always first. This may result in the first host being picked all the time, so that host may respond differntly than the other hosts over time. The order value shuffle would mitigate this issue.

Assignment

1. Write a playbook that runs on all hosts, in a random order.

2. Play with these order parameters:

• reverse_inventory
• sorted
• reverse_sorted

Solution

Have a look at this random order