ansible.azure.automation/roles/azure_rg/tasks/main.yml

---
- name: list resource group
  include: list.yml
  when:
    - action is defined 
    - action == 'list'
    - (rgs | default([], true) | length) > 0
  vars:
    rg: "{{ item }}"
  with_items: "{{ rgs }}"

- name: In resourse group state
  include: "{{ item.state | default('present', true) }}.yml"
  vars:
    rg: "{{ item }}"
  when:
    - action is undefined 
    - (rgs | default([], true) | length) > 0
  with_items: "{{ rgs }}"

- name: Update/create resourse group
  include: present.yml
  vars:
    rg: "{{ item }}"
  when:
    - action is defined 
    - action == 'present'
    - item.state is undefined
    - (rgs | default([], true) | length) > 0
  with_items: "{{ rgs }}"

- name: Delete resourse group
  include: absent.yml
  vars:
    rg: "{{ item }}"
  when:
    - action is defined 
    - action == 'absent'
    - item.state is undefined
    - (rgs | default([], true) | length) > 0
  with_items: "{{ rgs }}"
...