instdocker-play.yml

---
  - hosts: all
    become: true
    tasks:
    - name: Install packages that allow apt to be used over HTTPS
      apt:
        name: "{{ packages }}"
        state: present
        update_cache: yes
      vars:
        packages:
        - apt-transport-https
        - ca-certificates
        - curl
        - gnupg-agent
        - software-properties-common

    - name: Add an apt signing key for Docker
      apt_key:
        url: https://download.docker.com/linux/ubuntu/gpg
        state: present

    - name: Add apt repository for stable version
      when: ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'bionic'
      apt_repository:
        repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
        state: present

    - name: Add apt repository for stable version
      when: ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'focal'
      apt_repository:
        repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable
        state: present

    - name: Install docker and its dependecies for bionic
      when: ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'bionic'
      apt:
        name: "{{ packages }}"
        state: present
        update_cache: yes
      vars:
        packages:
        - docker-ce=5:18.09.6~3-0~ubuntu-bionic
        - docker-ce-cli=5:18.09.6~3-0~ubuntu-bionic
        - containerd.io

    - name: Install docker and its dependecies for focal
      when: ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'focal'
      apt:
        name: "{{ packages }}"
        state: present
        update_cache: yes
      vars:
        packages:
        - docker-ce
        - docker-ce-cli
        - containerd.io

    - name: Enable docker service
      systemd:
        name: docker
        enabled: yes

    - name: Create Docker service override dir
      file:
        path: /etc/systemd/system/docker.service.d
        state: directory

    - name: Download Docker service
      copy:
        src: override.conf
        dest: /etc/systemd/system/docker.service.d/override.conf

    - name: Dowload Container DNS
      copy:
        src: daemon.json
        dest: /etc/docker/daemon.json

    - name: Reload systemD service
      systemd:
        daemon_reload: yes

    - name: Reload docker service
      systemd:
        name: docker
        state: restarted