ansible-playbook deploy-playbook.yml -e "project=<project>" -e "branch=<branch>"

deploy-playbook.yml

---
- hosts: "tag_UID_{{ (branch+project) | checksum }}"
  connection: local
  gather_facts: no

  tasks:

  - name: Terminate existing instance
  local_action: ec2
    state=absent
    instance_ids="{{ ec2_id }}"
    region=ap-southeast-2

- hosts: localhost
  connection: local
  gather_facts: no

  vars:
    - dns_zones:
      - domain1.com
      - domain2.com
    - branch_shortname: "{{ branch | basename }}"
    - instance_name: "drupal.{{ project }}.{{ branch_shortname }}"
    - instance_uid: "{{ (branch+project) | checksum }}"

  tasks:

  - name: Find current template
    ec2_ami_find:
      region: ap-southeast-2
      owner: self
      ami_tags:
        Project: "{{ project }}"
      no_result_action: fail
    register: template

  - name: Deploy instance
    ec2:
      region: ap-southeast-2
      key_name: jenkins
      instance_type: m3.medium
      image: "{{ template.results[0].ami_id }}"
      instance_tags:
        Name: "{{ instance_name }}"
        Project: "{{ project }}"
        Branch: "{{ branch }}"
        Service: Drupal
        UID: "{{ instance_uid }}"
      wait: yes
      group: default
      count: 1
    register: ec2

  - name: Add instance public IP to host group
    add_host:
      hostname: "{{ item.public_ip }}"
      groups: "ec2hosts"
    with_items: ec2.instances

  - name: Wait for SSH to come up
    wait_for: host={{ item.public_dns_name }} port=22 delay=20 timeout=320 state=started
    with_items: ec2.instances

  - name: Add DNS entry on route 53
    route53:
      command: create
      zone: "{{ item }}"
      record: "{{ branch_shortname }}.{{ project }}.{{ item }}"
      overwrite: yes
      type: A
      ttl: 60
      value: "{{ ec2.instances[0].public_ip }}"
    with_items: dns_zones

- hosts: "ec2hosts"
  become: yes
  gather_facts: no

  tasks:

#  - name: Provision instance
#    include: tasks/instance-provision.yml