ansible/test/integration/targets/docker_swarm_facts/tasks/main.yml

- include_tasks: test_swarm_facts.yml
  # Maximum of 1.24 (docker API version for docker_swarm_facts) and 1.25 (docker API version for docker_swarm) is 1.25
  when: docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.25', '>=')

- fail: msg="Too old docker / docker-py version to run docker_swarm_facts tests!"
  when: not(docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.25', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)