---
- hosts: database
  become: true
  tasks:
    - name: reiniciar mysql
      service: name=mysql state=restarted

- hosts: loadbalancer
  become: true
  tasks:
    - name: reiniciar nginx
      service: name=nginx state=restarted

- hosts: webserver
  become: true
  tasks:
    service: name=apache2 state=restarted