---

- name: Install required packages for HTTPS repositories
  apt: name={{ item.package }} state=present update_cache=yes cache_valid_time=3600
  become: true
  with_items:
    - { package: apt-transport-https }
    - { package: ca-certificates }

- name: Add Docker repository for Ubuntu
  apt_key: id={{ item.id }} url={{ item.url }} state=present
  become: true
  with_items:
    - { id: "9DC858229FC7DD38854AE2D88D81803C0EBFCD88", url: "https://download.docker.com/linux/ubuntu/gpg" }
  when: docker_command == 'docker'

- name: Install Docker repository
  apt_repository: repo={{ item.repo }} state=present
  become: true
  with_items:
    - { repo: "deb [arch=amd64] https://download.docker.com/linux/ubuntu {{ ansible_distribution_release }} stable" }
  when: docker_command == 'docker'

- name: Run apt update
  apt:
    update_cache: true
    cache_valid_time: 3600
  become: true
  when: docker_command == 'docker'