---

- name: Add Docker's public GPG key to the APT keyring
  become: true
  apt_key:
    url: https://download.docker.com/linux/{{ ansible_distribution | lower }}/gpg
    state: present

- name: Configure Docker's upstream APT repository
  become: true
  apt_repository:
    repo: deb [arch=amd64] https://download.docker.com/linux/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} stable
    state: present
    update_cache: yes

- name: Install Docker
  become: true
  apt:
    name:
      - docker-ce 
      - docker-ce-cli 
      - containerd.io
    state: "present"

- name: Add user(s) to "docker" group
  become: true
  user:
    name: "{{ user }}"
    groups: "docker"
    append: true

- name: Enable service docker and ensure it is not masked
  become: true
  systemd:
    name: docker
    state: started
    enabled: yes
    masked: no

- name: Creates directory
  become: yes
  file:
    path: /var/docker/{{ registry_name }}
    state: directory

- name: Check if registry is running
  become: yes
  shell: docker container ls -q -f="name=^{{ registry_name }}$"
  register: continerList

- name:  Start registry
  become: yes
  shell: docker run -d --name {{ registry_name }} --restart=always -v "$(pwd)":/var/lib/registry -p {{ registry_port }}:5000 registry:2
  args:
    chdir: /var/docker/{{ registry_name }}
  when: continerList.stdout_lines|length == 0