DeployDocker.yml

---
- hosts: 127.0.0.1
  connection: local
  become: true
  become_method: sudo
  tasks:
  - name: Create repository file for Docker
    file: path=/etc/apt/sources.list.d/docker.list state=touch
  - name: get APT keys
    apt_key: keyserver=hkp://p80.pool.sks-keyservers.net:80 id=58118E89F3A912897C070ADBF76221572C52609D
  - name: Add Docker repositories to APT
    lineinfile: dest=/etc/apt/sources.list.d/docker.list  line='deb https://apt.dockerproject.org/repo ubuntu-xenial main'
    register: result
  - name: Apt upate for docker repositories
    apt: update_cache=yes
    when: result|changed
  - name: Install docker engine
    apt: name=docker-engine state=present install_recommends=yes
  - name: Start Docker service
    service: name=docker state=started
  - name: determine swarm status
    shell: "docker info | egrep '^Swarm: ' | cut -d ' ' -f2"
    register: swarm_status
  - name: initialize swarm cluster
    shell: docker swarm init --advertise-addr 192.168.33.10:2377
    when: "'active' not in swarm_status.stdout_lines"
  - name: retrieve swarm worker token
    shell: docker swarm join-token -q worker
    register: swarm_worker_token
  - name: Tag as docker manager
    shell: docker node update --role manager master
    when: "'active' not in swarm_status.stdout_lines"

- hosts: nodes
  become: true
  become_method: sudo
  vars:
    token: "{{ hostvars['localhost']['swarm_worker_token']['stdout'] }}"
  tasks:
  - name: get APT keys
    apt_key: keyserver=hkp://p80.pool.sks-keyservers.net:80 id=58118E89F3A912897C070ADBF76221572C52609D
  - name: Create repository file for Docker
    file: path=/etc/apt/sources.list.d/docker.list state=touch
  - name: Add Docker repositories to APT
    lineinfile: dest=/etc/apt/sources.list.d/docker.list  line='deb https://apt.dockerproject.org/repo ubuntu-xenial main'
    register: result
  - name: Apt upate for docker repositories
    apt: update_cache=yes
    when: result|changed
  - name: Install docker engine
    apt: name=docker-engine state=present install_recommends=yes
  - name: determine swarm status
    shell: "docker info | egrep '^Swarm: ' | cut -d ' ' -f2"
    register: swarm_status
  - name: join worker nodes to cluster
    shell: docker swarm join --token={{ token }} 192.168.33.10:2377
    when: "'active' not in swarm_status.stdout_lines"