---
- name: Update apt repo and cache
  apt:
    update_cache: true
    force_apt_get: true
    cache_valid_time: 3600

- name: Upgrade all packages
  apt:
    upgrade: full
    force_apt_get: true
    autoremove: true
  register: upgrade_cmd

- name: List newly installed and upgraded packages
  shell: grep -E "^$(date +%Y-%m-%d).+ (install|upgrade) " /var/log/dpkg.log |cut -d " " -f 3-5
  register: new_or_upgraded_pkgs
  when: upgrade_cmd.changed

- name: Show installed/updated packages output
  debug:
    msg: "{{ new_or_upgraded_pkgs is defined and new_or_upgraded_pkgs.stdout_lines }}"
  when: new_or_upgraded_pkgs.changed

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

- name: Check if a docker upgrade happened
  set_fact:
    docker_upgrade: "{{ new_or_upgraded_pkgs is defined and 'stdout_lines' in new_or_upgraded_pkgs and 'docker' in new_or_upgraded_pkgs.stdout_lines }}"

- name: Output warning when reboot is needed
  debug:
    msg: "--- WARNING: REBOOT REQUIRED ---"
  when: reboot_required_file.stat.exists | bool or docker_upgrade | bool

- name: Show prompt to take note of reboot
  pause:
    prompt: |
      "{{ inventory_hostname }} requires a reboot, please take note and perform
      this manually after this role finishes! Thank you for your system admin
      labours!"
  delegate_to: localhost
  when: reboot_required_file.stat.exists | bool or docker_upgrade | bool