ansible_install_docker_from_binary_source.yml

- hosts: test_nodes
  vars:
    _docker_version: 17.12.0
  tasks:
    - group:
        name: docker
        state: present
      become: true

    - name: Setting HOME Directory Path
      set_fact:
        _home: "{{ ansible_env['HOME'] }}"

    - name: Fetch docker version
      shell: docker version 2>&1 | grep Version | awk '{print $2}'
      register: docker_version

    - name: Check if docker is installed, download binary otherwise
      get_url:
        url: "https://download.docker.com/linux/static/stable/x86_64/docker-{{ _docker_version }}-ce.tgz"
        dest: "{{ _home }}"
      when: docker_version.stdout == ''

    - name: Extract binary
      unarchive:
        src: "{{ _home }}/docker-{{ _docker_version }}-ce.tgz"
        dest: "{{ _home }}/"
        remote_src: yes
        creates: "{{ _home }}/docker/dockerd"
      when: docker_version.stdout == ''

    - name: Copy Docker Binaries to /usr/bin
      shell: cp {{ _home }}/docker/docker* /usr/bin/
      args:
        creates: /usr/bin/docker
      become: true

    - name: start docker
      shell: dockerd &
      become: true
      args:
        creates: /var/run/docker.pid
      register: tmp

    - name: Debug
      debug:
        var: tmp