- hosts: graylog
  name: setup mongodb
  roles:
  - mongodb
  tasks:
  - name: ensure mongodb is running
    service:
      name=mongod
      state=started

- hosts: graylog
  name: setup elasticsearch
  roles:
  - elasticsearch
  tasks:
  - name: ensure elasticsearch is running
    service:
      name=elasticsearch
      state=started

- hosts: graylog
  name: setup graylog
  vars_files:
    vault/graylog/{{ inventory_hostname }}
  roles:
  - apache
  - graylog
  tasks:
  - name: ensure graylog is running
    service:
      name=graylog-server
      state=started