---

- block:
  - name: "install docker dependencies"
    apt:
      name: "{{ packages }}"
      state: present
    vars:
      packages:
        - ca-certificates
        - curl
        - gnupg
        - lsb-release

  - name: "add docker pgp key"
    apt_key:
      state: present
      url: https://download.docker.com/linux/ubuntu/gpg

  - name: "get release"
    command: lsb_release -cs
    register: release

  - name: add docker repository to apt
    apt_repository:
      repo: deb https://download.docker.com/linux/ubuntu {{ release.stdout }} stable
      state: present

  - name: "install docker dependencies"
    apt:
      update_cache: yes
      name: "{{ packages }}"
      state: present
    vars:
      packages:
        - docker-ce
        - docker-ce-cli
        - containerd.io

  - name: "ensure docker group exists"
    group:
      name: docker
      state: present

  - name: "add user to group"
    user:
      name: "{{ regular_user }}"
      groups: docker
      append: yes

  - name: "start docker if needed"
    service:
      name: docker
      state: started

  become: true
  become_user: root