aws_swarm_master.yml

---
- name: Provision a Swarm v2 master on AWS
  hosts: localhost
  connection: local
  gather_facts: False

  tasks:
    - name: Find the latest Ubuntu Wily image
      ec2_ami_find:
        region: us-east-1
        name: "ubuntu/images/hvm/ubuntu-wily-15.10-amd64-server-*"
        sort: name
        sort_order: descending
        sort_end: 1
      register: ami_find

    - name: Create the EC2 instance
      ec2:
        image: "{{ ami_find.results[0].ami_id }}"
        region: us-east-1
        instance_type: t2.medium
        key_name: swarm
        group: dockermachine
        wait: yes
      register: ec2

    - name: wait for ssh server to be running
      wait_for: host={{ item.public_dns_name }} port=22 search_regex=OpenSSH delay=60
      with_items: "{{ ec2.instances }}"
      when: item.public_dns_name is defined

    - name: Provision a Docker Host with machine
      docker_machine:
        provider: "generic"
        name: "swarm-master-{{ item.public_dns_name }}"
        ip_address: "{{ item.public_ip }}"
        ssh_key: "~/.aws/keys/swarm.pem"
        ssh_user: "ubuntu"
      with_items: "{{ ec2.instances }}"
      register: machine_result

    - shell: >
        eval $(docker-machine env swarm-master-"{{ item.public_dns_name }}")
        echo $DOCKER_TLS_VERIFY &&
        echo $DOCKER_HOST &&
        echo $DOCKER_CERT_PATH &&
        echo $DOCKER_MACHINE_NAME
      with_items: "{{ ec2.instances }}"
      register: master

    - set_fact:
        dhost: "{{ master.stdout_lines[0] }}"
        dcert: "{{ master.stdout_lines[1] }}"
        dmach: "{{ master.stdout_lines[2] }}"

    - debug: msg="{{ dhost }}" "{{ dcert }}" "{{ dmach }}"