Ansible pattern for multi-os configuration

main.yml

---
- hosts: all
  become: yes
  become_user: "{{ lookup('env','SUDO_USER') }}"
  tasks:
    - name: Display OS Details
      block:
      - debug:
          var: ansible_distribution
          verbosity: 1
      - debug:
          var: ansible_distribution_major_version
          verbosity: 1
    - name: Display all variables/facts known for a host
      debug:
        var: hostvars[inventory_hostname]
        verbosity: 4
    - name: Include OS specific tasks
      include_tasks: "{{ os_item }}"
      with_first_found:
      - "tasks/{{ ansible_distribution | lower }}-{{ ansible_distribution_major_version}}.yml"
      - "tasks/{{ ansible_distribution | lower }}.yml"
      tags: vars
      loop_control:
        loop_var: os_item