---

- hosts:
    - desktops
    - laptops
  remote_user: root
  pre_tasks:
    - name: ensure acpi tool is installed
      apt:
        pkg: acpi
    - name: ensure host is on AC power
      command: acpi -a
      register: _acpi_ac_adapter
      failed_when: '"off-line" in _acpi_ac_adapter.stdout'
      changed_when: false
  roles:
    - name: display_manager
      display_manager_state: multiuser