Simple Ansible playbook for updating linux machines

upgrade.yaml

---
- hosts: all
  become: true
  tasks:
    - name: Update package information
      apt:
        update_cache: true
    - name: Upgrade the OS
      apt:
        upgrade: dist
      register: apt
    - name: Reboot
      reboot:
        post_reboot_delay: 15
      when: apt.changed
      throttle: 1