community.general/test/integration/targets/docker_container_facts/tasks/main.yml

---
- block:
  - name: Create random container name
    set_fact:
      cname: "{{ 'ansible-test-%0x' % ((2**32) | random) }}"

  - name: Make sure container is not there
    docker_container:
      name: "{{ cname }}"
      state: absent
      stop_timeout: 1

  - name: Inspect a non-present container
    docker_container_facts:
      name: "{{ cname }}"
    register: result

  - assert:
      that:
      - "not result.exists"
      - "'docker_container' in result"
      - "not result.docker_container"

  - name: Make sure container exists
    docker_container:
      name: "{{ cname }}"
      image: alpine:3.8
      command: '/bin/sh -c "sleep 10m"'
      state: started
      auto_remove: yes
      stop_timeout: 1

  - name: Inspect a present container
    docker_container_facts:
      name: "{{ cname }}"
    register: result
  - name: Dump docker_container_facts result
    debug: var=result

  - name: "Comparison: use 'docker inspect'"
    command: docker inspect "{{ cname }}"
    register: docker_inspect
  - set_fact:
      docker_inspect_result: "{{ docker_inspect.stdout | from_json }}"
  - name: Dump docker inspect result
    debug: var=docker_inspect_result

  - name: Cleanup
    docker_container:
      name: "{{ cname }}"
      state: absent
      stop_timeout: 1

  - assert:
      that:
      - result.exists
      - "'docker_container' in result"
      - "result.docker_container"
      - "result.docker_container == docker_inspect_result[0]"

  # Skip for CentOS 6
  when: ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6