---
- name: Install Docker on Debian or Ubuntu
  hosts: all
  become: true

  tasks:
    - name: Install prerequisite packages
      ansible.builtin.apt:
        pkg:
          - apt-transport-https
          - ca-certificates
          - curl
          - gnupg
          - lsb-release
        state: present
        update_cache: true

    - name: Create directory for Docker GPG key
      ansible.builtin.file:
        path: /etc/apt/keyrings
        state: directory
        mode: '0755'

    - name: Add Docker GPG key
      ansible.builtin.get_url:
        url: "https://download.docker.com/linux/{{ ansible_distribution | lower }}/gpg"
        dest: /etc/apt/keyrings/docker.gpg
        mode: '0644'

    - name: Add Docker Repository
      ansible.builtin.apt_repository:
        # This line dynamically detects 'debian' vs 'ubuntu' and 'bookworm' vs 'jammy'
        repo: >
          deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg]
          https://download.docker.com/linux/{{ ansible_distribution | lower }}
          {{ ansible_distribution_release }} stable
        state: present
        filename: docker-ce

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

    - name: Ensure Docker service is running
      ansible.builtin.systemd:
        name: docker
        state: started
        enabled: true