---
- hosts: localhost
  vars:
    aws_instance_type: "r4.2xlarge"
    # needs to be hvm:ebs-ssd instance type
    aws_ami: "ami-20631a36"
    redundancy: 1
  tasks:

  - name: Provision servers for varnish
    ec2:
      #assign_public_ip: True
      instance_type: "{{ aws_instance_type }}"
      image: "{{ aws_ami }}"
      keypair: "jsca@loc.gov"
      region: "us-east-1"
      wait: True
      count: "{{ redundancy }}"
      volumes:
        - device_name: "/dev/sda1"
          volume_type: "gp2"
          volume_size: 8
          delete_on_termination: True
    register: varnish_ec2

  - name: Add new instance to host group
    add_host:
      hostname: "{{ item.public_ip }}"
      groupname: varnish_instances
    with_items: "{{ varnish_ec2.instances }}"

  - name: Wait for ssh to come up
    wait_for:
      host: "{{ item.public_dns_name }}"
      port: 22
      state: started
    with_items: "{{ varnish_ec2.instances }}"

- name: Configure varnish servers
  hosts: varnish_instances
  user: ubuntu
  become: True
  gather_facts: True
  vars:
    ansible_ssh_private_key_file: "/Users/jscancella/.ssh/jscalocgov.pem"
    ansible_python_interpreter: "/usr/bin/python3" #because ubuntu 16.04 removed python 2.X
    varnish_storage: "file,/var/lib/varnish/varnish_storage.bin,6GB"
  roles:
    - geerlingguy.varnish