---
- name: Introduce roles
  hosts: server
  become: true
  pre_tasks:
    - name: pre_tasks run here
      debug:
        msg: 'this runs before the roles'
  roles:
    - prep_server

  post_tasks:
    - name: post_tasks run here
      debug:
        msg: 'this runs after the roles'
    - name: retrieve content from port 80
      uri:
        url: "http://localhost:80/index.html"
        return_content: yes
      when: port == 'http'