- name: Installing Docker and Docker Compose
  hosts: hosts
  become: true

  tasks:
  - name: Clear previous install of Docker
    ansible.builtin.apt: 
      name:
        - docker.io
        - docker-compose
        - docker-compose-v2
        - docker-doc
        - podman-docker
        - containerd
      state: absent
      autoremove: true
      force: true

  - name: Install pre-requirements
    ansible.builtin.apt:
      update_cache: yes
      pkg:
        - ca-certificates
        - curl
      force: true

  - name: Add Docker GPG key and Repository
    block:
      - name: Download GPG Key
        ansible.builtin.get_url:
          url: https://download.docker.com/linux/ubuntu/gpg
          dest: /etc/apt/keyrings/docker.asc

      - name: Add Docker repository source
        ansible.builtin.template:
          src: docker.sources.j2
          dest: /etc/apt/sources.list.d/docker.sources
          owner: root
          group: root
          mode: '0644'

      - name: Update apt cache after adding Docker repository
        ansible.builtin.apt:
          update_cache: yes

      - name: Install Docker and Docker Compose
        ansible.builtin.apt:
          state: present
          name:
            - docker-ce
            - docker-ce-cli
            - containerd.io
            - docker-buildx-plugin
            - docker-compose-plugin
          force: true
        ignore_errors: '{{ ansible_check_mode }}'

  - name: Ensure group "docker" exists
    ansible.builtin.group:
      name: docker
      state: present

  - name: Add user to group
    ansible.builtin.user:
      name: "{{ ansible_user_id }}"
      groups: docker
      append: yes
    ignore_errors: '{{ ansible_check_mode }}'