---
- name: install apt key
  apt_key:
    url: "https://download.docker.com/linux/{{ ansible_lsb.id | lower }}/gpg"
    state: present

- name: install apt repo
  apt_repository:
    repo: >
      deb [arch=amd64] https://download.docker.com/linux/{{ ansible_lsb.id | lower }}
      {{ ansible_lsb.codename }}
      stable
    filename: docker