---
- include_vars: "{{ item }}"
  with_first_found:
    - "os_{{ ansible_os_family | lower }}.yml"

- include_vars: "{{ lookup('first_found', params) }}"
  vars:
    params:
      files:
        - "{{ ansible_lsb.id | default('') | lower }}.yml"
        - "{{ ansible_os_family | lower }}.yml"
      paths:
        - "vars"
      errors: "ignore"

- include_tasks: "{{ lookup('first_found', params) }}"
  vars:
    params:
      files:
        - "setup_{{ ansible_lsb.id | default('') | lower }}.yml"
        - "setup_{{ ansible_os_family | lower }}.yml"
        - "setup_default.yml"
      paths:
        - "tasks"