---
- hosts: webservers
  tasks:
   - name: Instala Apache no Debian/Ubuntu
     when: ansible_os_family == "Debian"
     apt: name=apache2 state=present update_cache=true
     register: apache2_installed
   - name: Instala Apache no CentOS
     when: ansible_os_family == "RedHat"
     yum:  name=httpd state=present
     register: httpd_installed