ansible/roles/docker/tasks/services.yml

---
- name: setup external services network
  docker_network:
    name: external_services

- name: setup services
  include_tasks: "services/{{ item.service.file }}"
  loop: "{{ services | dict2items(value_name='service') }}"
  when: single_service is not defined and
        item.service.file is defined and
        item.service.disabled_in_vagrant is not defined

- name: setup single service
  include_tasks: "services/{{ services[single_service].file }}"
  when: single_service is defined and
        single_service in services and
        services[single_service].file is defined and
        services[single_service].disabled_in_vagrant is not defined