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

- include_tasks: test_node.yml
  when: docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.24', '>=')

- 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('1.24', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)