---
  - hosts: ubuntu

    tasks:
    - name: Update apt cache and repositories
      apt:
        update_cache: yes
        upgrade: yes
        autoremove: yes

    - name: Check if reboot required
      stat:
        path: /var/run/reboot-required
      register: reboot_required_file

    - name: Reboot if required
      reboot:
      when: reboot_required_file.stat.exists == true