---
- name: Install prerequisite packages
  apt:
    name:
      - ca-certificates
      - curl
      - gnupg
      - lsb-release
    state: present
    update_cache: true

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

- name: Add Docker apt repository
  apt_repository:
    repo: >
      deb [arch=amd64]
      https://download.docker.com/linux/ubuntu
      {{ ansible_facts['distribution_release'] }} stable
    state: present
    filename: docker

- name: Install Docker engine and compose plugin
  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
  systemd:
    name: docker
    enabled: true
    state: started

- name: Ensure Docker config directory
  file:
    path: /etc/docker
    state: directory
    mode: '0755'

- name: Configure Docker to use journald
  copy:
    dest: /etc/docker/daemon.json
    content: |
      {
        "log-driver": "journald"
      }
    mode: '0644'
  notify: restart docker

- name: Add admin user to docker group
  user:
    name: "{{ admin_user }}"
    groups: docker
    append: true

# ---- Filesystem layout ----

- name: Create base directory
  file:
    path: "{{ item }}"
    state: directory
    owner: root
    group: root
    mode: "0755"
  loop:
    - /srv