NewsBlur/ansible/roles/docker/tasks/install-Ubuntu.yml

---
# tasks file for docker-ce-ansible-role

- name: Remove previous docker installation
  become: yes
  apt:
    name: "{{ item.package }}"
    state: absent
  with_items: "{{ docker_cleanup_packages_Ubuntu }}"

- name: Install prerequisite packages
  become: yes
  apt:
    name: "{{ item.package }}"
    state: present
  with_items: "{{ docker_prerequisite_packages_Ubuntu }}"

- name: Install prerequisite packages (for Ubuntu 14.04 only)
  apt:
    name: "{{ item.package }}"
    state: present
  with_items: "{{ docker_prerequisite_packages_Ubuntu_1404 }}"
  when: ansible_distribution_version == '14.04'

- name: Import Docker CE repository gpg key
  become: yes
  apt_key:
    url: https://download.docker.com/linux/ubuntu/gpg
    state: present
    id: 9DC858229FC7DD38854AE2D88D81803C0EBFCD88

- name: Add Docker CE repository
  become: yes
  apt_repository:
    repo: "deb [arch=amd64] https://download.docker.com/linux/ubuntu {{ ansible_distribution_release }} stable"
    state: present

- name: Install Docker CE
  become: yes
  apt:
    name: docker-ce
    state: present
    update_cache: yes

- name: Check current docker-compose version
  command: docker-compose --version
  register: docker_compose_vsn
  changed_when: false
  failed_when: false
  check_mode: no
  tags: docker-compose

- set_fact:
    docker_compose_current_version: "{{ docker_compose_vsn.stdout | regex_search('(\\d+(\\.\\d+)+)') }}"
  when:
    - docker_compose_vsn.stdout is defined
  tags: docker-compose

- name: Docker compsoe current version
  debug: 
    msg: "{{ docker_compose_current_version }}"
  tags: docker-compose

- name: Install or upgrade docker-compose
  become: yes
  get_url: 
    url : "https://github.com/docker/compose/releases/download/v{{ docker_compose_version }}/docker-compose-linux-x86_64"
    dest: /usr/local/bin/docker-compose
    mode: 'a+x'
    force: yes
  when: >
    docker_compose_current_version is not defined 
    or docker_compose_current_version == ""
    or docker_compose_current_version is version(docker_compose_version, '<')
  tags: docker-compose