---
- hosts: webserver
  gather_facts: yes
  become: yes
  tasks:
  - name: Install apache
    apt: pkg=apache2 state=latest
    notify:
    - restart apache2
  - name: Enable apache2 during boot
    service: name=apache2 state=started enabled=yes
  handlers:
    - name: restart apache2
      service: name=apache2 state=restarted

- hosts: loadbalancer
  become: yes
  tasks:
  - name: Install nginx
    apt: pkg=nginx state=latest
    notify:
    - restart nginx
  - name: Enable nginx during boot
    service: name=nginx state=started enabled=yes
  handlers:
    - name: restart nginx
      service: name=nginx state=restarted