- become: yes
  hosts: all
- name: Instalar webserver
  hosts: webserver
  roles:
    - role: apache2
    - role: php

- name: Instalar database 
  hosts: database
  roles:
    - role: mariadb
    
- name: Instalar loadbalancer 
  hosts: loadbalancer
  roles:
    - role: nginx
    - role: users