templier-ansible/roles/docker/tasks/main.yml

---
- name: Install docker
  apt:
    update_cache: true
    name:
      - docker
      - docker.io
      - docker-compose
    state: present
  register: apt_result
  retries: 3
  until: apt_result is succeeded

- name: Indicate role in motd
  template:
    src: update-motd.d/05-service.j2
    dest: /etc/update-motd.d/05-docker
    owner: root
    group: root
    mode: 0755