docker-install.yml

- name: Install docker
  become: yes
  block:
    - name: Install docker packages
      apt:
        name: "{{ item }}"
        state: present
        update_cache: yes
      with_items:
        - apt-transport-https
        - ca-certificates
        - curl
        - software-properties-common
    - name: Add Docker s official GPG key
      apt_key:
        url: https://download.docker.com/linux/ubuntu/gpg
        state: present
    - name: Verify that we have the key with the fingerprint
      apt_key:
        id: 0EBFCD88
        state: present
    - name: Set up the stable repository
      apt_repository:
        repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable
        state: present
        update_cache: yes
    - name: Update apt packages
      apt:
        update_cache: yes
    - name: Install docker
      apt:
        name: docker-ce
        state: present
        update_cache: yes
    - name: Add remote "ubuntu" user to "docker" group
      user:
        name: ubuntu
        groups: [ "docker" ]
        append: yes
    - name: Reset SSH connection (for "docker" group to be active)
      meta:
        reset_connection
    - name: Install docker-compose
      get_url: 
        url : https://github.com/docker/compose/releases/download/v2.2.2/docker-compose-linux-x86_64
        dest: /usr/local/bin/docker-compose
        owner: ubuntu
        group: docker
        mode: 'u+x,g+x'
        force: true
- name: Initialize single node swarm
  block:
    - name: Validate that server is manager node
      shell: test $(docker info --format \{\{'.Swarm.ControlAvailable'\}\}) = true
  rescue:
    - name: Initialize single node swarm
      command: docker swarm init --default-addr-pool 192.168.0.0/16 ## Default range may conflict with ec2 dns