---
# Docker Engine Installation

- name: Remove old Docker versions
  package:
    name:
      - docker
      - docker-engine
      - docker.io
      - containerd
      - runc
    state: absent
  tags:
    - docker
    - cleanup

- name: Add Docker GPG key
  apt_key:
    url: "{{ docker_apt_gpg_key }}"
    state: present
  tags:
    - docker
    - repository

- name: Add Docker repository
  apt_repository:
    repo: "{{ docker_apt_repository }}"
    state: present
    update_cache: true
  tags:
    - docker
    - repository

- name: Install Docker Engine
  package:
    name:
      - docker-{{ docker_edition }}
      - docker-{{ docker_edition }}-cli
      - containerd.io
      - docker-buildx-plugin
      - docker-compose-plugin
    state: present
    update_cache: true
  notify: restart docker
  tags:
    - docker
    - packages

- name: Ensure Docker group exists
  group:
    name: "{{ docker_group }}"
    state: present
  tags:
    - docker
    - users

- name: Add users to Docker group
  user:
    name: "{{ item }}"
    groups: "{{ docker_group }}"
    append: true
  loop: "{{ docker_users }}"
  when: docker_users | length > 0
  tags:
    - docker
    - users

- name: Add deploy user to Docker group
  user:
    name: "{{ ansible_user }}"
    groups: "{{ docker_group }}"
    append: true
  when: ansible_user != 'root'
  tags:
    - docker
    - users

- name: Start and enable Docker service
  service:
    name: docker
    state: "{{ docker_service_state }}"
    enabled: "{{ docker_service_enabled }}"
  tags:
    - docker
    - service

- name: Wait for Docker daemon to be ready
  command: docker version
  register: docker_ready
  retries: 5
  delay: 10
  until: docker_ready.rc == 0
  changed_when: false
  tags:
    - docker
    - verification