---
# apt update + dist-upgrade on meshcore nodes, one host at a time.
#   ansible-playbook upgrade.yml [--limit dm-edworth]
#   ansible-playbook upgrade.yml -e reboot=true   # reboot only nodes that need it
- name: Upgrade packages
  hosts: meshcore
  become: true
  serial: 1
  vars:
    reboot: false
  tasks:
    - name: apt update and dist-upgrade
      ansible.builtin.apt:
        update_cache: true
        upgrade: dist

    # Separate task: apt's autoremove option is not reliably honoured together with upgrade:
    - name: apt autoremove
      ansible.builtin.apt:
        autoremove: true

    - name: Update meshfirmware
      ansible.builtin.import_role:
        name: scripts
        tasks_from: meshfirmware

    - name: Check whether a reboot is required
      ansible.builtin.stat:
        path: /var/run/reboot-required
      register: reboot_required

    - name: Report reboot status
      ansible.builtin.debug:
        msg: "{{ inventory_hostname }}: reboot {{ 'required' if reboot_required.stat.exists else 'not required' }}"

    - name: Reboot if required
      ansible.builtin.reboot:
      when: reboot | bool and reboot_required.stat.exists