Ansible docker modules
https://docs.ansible.com/ansible/latest/modules/docker_container_module.html

- name: Enable autostart for running containers
  shell: docker update --restart=always $(docker ps -q)

- name: Get container info
  docker_container_info:
    name: www1
  register: result

- name: Does container exist?
  debug:
    msg: "The container {{ 'exists' if result.exists else 'does not exist' }}"

- name: Stop container
  docker_container:
    name: "{{ result.container.Name }}"
    state: stopped
  when:
    - result.exists
    - result.container.State.Running