---
- hosts: database
  become: true
  vars_files:
    - group_vars/vault.yml
  roles:
    - mysql

- hosts: webserver
  become: true
  vars_files:
    - group_vars/vault.yml
  roles:
    - wordpress

- hosts: webserver
  become: true
  vars_files:
    - group_vars/vault.yml
  roles:
    - apache2

- hosts: loadbalancer
  become: true
  vars_files:
    - group_vars/vault.yml
  roles:
    - nginx