ansible/test/integration/roles/test_docker/tasks/docker-tests.yml

- name: Start docker daemon
  service:
    name: docker
    state: started

- name: Download busybox image
  docker:
    image: busybox
    state: present
    pull: missing

- name: Run a small script in busybox
  docker:
    image: busybox
    state: reloaded
    pull: always
    command: "nc -l -p 2000 -e xargs -n1 echo hello"
    detach: True

- name: Get the docker container id
  shell: "docker ps | grep busybox | awk '{ print $1 }'"
  register: container_id

- name: Get the docker container ip
  shell: "docker inspect {{ container_id.stdout_lines[0] }} | grep IPAddress | awk -F '\"' '{ print $4 }'"
  register: container_ip

- name: Try to access the server
  shell: "echo 'world' | nc {{ container_ip.stdout_lines[0] }} 2000"
  register: docker_output

- name: check that the script ran
  assert:
    that:
      - "'hello world' in docker_output.stdout_lines"