---
- name: Provision PVE Managed Hosts
  hosts: prometheus
  become: yes
  gather_facts: yes


  # --------------------------------------------- #
  # INCLUDED VARIABLES
  # --------------------------------------------- #
  vars_files:
    - "vars/{{ __pve_env | default('tower_lab') }}/defaults.yml"
    - "vars/{{ __pve_env | default('tower_lab') }}/environment_packages.yml"
    - "vars/{{ __pve_env | default('tower_lab') }}/inventory_vars.yml"
    - "vars/{{ __pve_env | default('tower_lab') }}/lab_nodes.yml"
    - "vars/{{ __pve_env | default('tower_lab') }}/network.yml"
    - "vars/{{ __pve_env | default('tower_lab') }}/prometheus.yml"
    - "vars/{{ __pve_env | default('tower_lab') }}/ssh_keypair.yml"
    - "vars/{{ __pve_env | default('tower_lab') }}/template_defaults.yml"


  # --------------------------------------------- #
  # INLINE VARS
  # --------------------------------------------- #
  vars:
    # roles to include
    __include_roles:
      - jchristianh.lab_setup.prometheus


  # --------------------------------------------- #
  # TASKS
  # --------------------------------------------- #
  tasks:
    - name         : Provision environment
      include_role :
        name       : "{{ lv_provision }}"
      loop         : "{{ __include_roles }}"
      loop_control :
        loop_var   : lv_provision


...