Example 1

hosts.yml

centos:
  hosts:
    provisioner:
      ansible_connection: local
    centos1:
      ansible_host: '192.168.77.22'
ubuntu:
  hosts:
    ubuntu1:
      ansible_host: '192.168.77.23'

playbook.yml

- name: Example playbook
  hosts: all
  tasks:
    - name: Example task
      command: whoami

Tip

Ansible Playbook's are used to gather multiple consecutive task executions. The tasks can be run synchronously, in parallel, in batches or match conditional clauses.

Execute the following command

ansible-playbook playbook.yml

Which modules will be run during this playbook execution?

This playbook execution will launch the setup and command modules on the remote hosts. The [Gathering Facts] section in ansible-playbook log corresponds to the execution of the setup module.

Bonus round

Using the debug module catch the ansible_distribution for each host.