---
- name: Assert supported operating system
  ansible.builtin.assert:
    that:
      - ansible_facts.os_family == 'Debian'
      - ansible_facts.distribution in ['Ubuntu', 'Debian']
    fail_msg: This role supports Ubuntu and Debian hosts.

- name: Install Docker repository prerequisites
  ansible.builtin.apt:
    name:
      - ca-certificates
      - curl
      - gnupg
    state: present
    update_cache: true

- name: Create APT keyrings directory
  ansible.builtin.file:
    path: /etc/apt/keyrings
    state: directory
    mode: "0755"

- name: Download Docker signing key
  ansible.builtin.get_url:
    url: "https://download.docker.com/linux/{{ ansible_facts.distribution | lower }}/gpg"
    dest: /etc/apt/keyrings/docker.asc
    mode: "0644"

- name: Configure Docker APT repository
  ansible.builtin.apt_repository:
    repo: >-
      deb [arch={{ {'x86_64':'amd64','aarch64':'arm64'}.get(ansible_facts.architecture, ansible_facts.architecture) }}
      signed-by=/etc/apt/keyrings/docker.asc]
      https://download.docker.com/linux/{{ ansible_facts.distribution | lower }}
      {{ ansible_facts.distribution_release }} stable
    filename: docker
    state: present

- name: Install Docker Engine and Compose plugin
  ansible.builtin.apt:
    name:
      - docker-ce
      - docker-ce-cli
      - containerd.io
      - docker-buildx-plugin
      - docker-compose-plugin
    state: present
    update_cache: true

- name: Enable and start Docker
  ansible.builtin.systemd_service:
    name: docker
    state: started
    enabled: true