---
- name: Add Docker GPG key
  apt_key:
    url: https://download.docker.com/linux/ubuntu/gpg
    state: present
  tags:
    - docker-install
    - gpg-key

- name: Add Docker repository
  apt_repository:
    repo: "deb [arch=amd64] https://download.docker.com/linux/ubuntu {{ ansible_distribution_release }} stable"
    state: present
    update_cache: yes
  tags:
    - docker-install
    - repository

- name: Install Docker packages
  apt:
    name:
      - docker-ce
      - docker-ce-cli
      - containerd.io
      - docker-buildx-plugin
      - docker-compose-plugin
    state: present
  tags:
    - docker-install
    - packages

- name: Start and enable Docker service
  systemd:
    name: docker
    state: started
    enabled: yes
  tags:
    - docker-install
    - service

- name: Add users to docker group
  user:
    name: "{{ item }}"
    groups: docker
    append: yes
  loop: "{{ docker_users }}"
  tags:
    - docker-install
    - users

- name: Install Docker Compose standalone (if enabled)
  get_url:
    url: "https://github.com/docker/compose/releases/download/v{{ docker_compose_version }}/docker-compose-linux-x86_64"
    dest: "{{ docker_compose_install_path }}"
    mode: '0755'
  when: docker_install_compose
  tags:
    - docker-install
    - compose

- name: Configure Docker daemon (if config provided)
  copy:
    content: "{{ docker_daemon_config | to_nice_json }}"
    dest: /etc/docker/daemon.json
    mode: '0644'
  when: docker_daemon_config is defined and docker_daemon_config | length > 0
  notify: restart docker
  tags:
    - docker-install
    - daemon-config