- name: Configure the server and install required software
  hosts: localhost

  vars:
    regions:
      "1":  "ams2"
      "2":  "ams3"
      "3":  "fra1"
      "4":  "lon1"
      "5":  "nyc1"
      "6":  "nyc2"
      "7":  "nyc3"
      "8":  "sfo1"
      "9":  "sfo2"
      "10": "sgp1"
      "11": "tor1"

  vars_prompt:
  - name: "do_access_token"
    prompt: "Enter your API Token (https://cloud.digitalocean.com/settings/api/tokens):\n"
    private: yes

  - name: "do_ssh_name"
    prompt: "Enter a valid SSH key name (https://cloud.digitalocean.com/settings/security):\n"
    private: no

  - name: "do_region"
    prompt: >
      What region should the server be located in?
        1.  Amsterdam        (Datacenter 2)
        2.  Amsterdam        (Datacenter 3)
        3.  Frankfurt
        4.  London
        5.  New York         (Datacenter 1)
        6.  New York         (Datacenter 2)
        7.  New York         (Datacenter 3)
        8.  San Francisco    (Datacenter 1)
        9.  San Francisco    (Datacenter 2)
        10. Singapore
        11. Toronto
      Enter the number of your desired region:
    default: "7"
    private: no
    
  - name: "do_server_name"
    prompt: "Name the vpn server:\n"
    default: "algo.local"
    private: no

  tasks:
  - name: "Getting your SSH key ID on Digital Ocean..."
    digital_ocean:
      state: present
      command: ssh
      name: "{{ do_ssh_name }}"
      api_token: "{{ do_access_token }}"
    register: do_ssh_key

  - name: "Creating a droplet..."
    digital_ocean:
      state: present
      command: droplet
      name: "{{ do_server_name }}"
      region_id: "{{ regions[do_region] }}"
      size_id: "512mb"
      image_id: "ubuntu-16-04-x64"
      ssh_key_ids: "{{ do_ssh_key.ssh_key.id }}"
      unique_name: yes
      api_token: "{{ do_access_token }}"
    register: do

  - name: Add the droplet to an inventory group
    add_host:
      name: "{{ do.droplet.ip_address }}"
      groups: vpn-host
      ansible_ssh_user: root
      ansible_python_interpreter: "/usr/bin/python2.7"

  - name: Wait for SSH to become available
    local_action: "wait_for port=22 host={{ do.droplet.ip_address }} timeout=320"
    
  - name: Enable IPv6 on the droplet
    uri:
      url: "https://api.digitalocean.com/v2/droplets/{{ do.droplet.id }}/actions"
      method: POST
      body:
        type: enable_ipv6
      body_format: json
      status_code: 201
      HEADER_Authorization: "Bearer {{ do_access_token }}"
      HEADER_Content-Type: "application/json"
      
  - name: Get Droplet networks
    uri:
      url: "https://api.digitalocean.com/v2/droplets/{{ do.droplet.id }}"
      method: GET
      status_code: 200
      HEADER_Authorization: "Bearer {{ do_access_token }}"
      HEADER_Content-Type: "application/json"
    register: droplet_info
    
  - name: IPv6 template created
    template: src=20-ipv6.cfg.j2 dest=configs/20-ipv6.tmp
    with_items: "{{ droplet_info.json.droplet.networks.v6 }}"

- name: Post-provisioning tasks
  hosts: vpn-host
  gather_facts: false
  user: root
  vars_files:
    - config.cfg
    
  pre_tasks:
    - name: Install prerequisites
      raw: sudo apt-get update -qq && sudo apt-get install -qq -y python2.7
    - name: Configure defaults
      raw: sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1    
    
  tasks:  
    - name: IPv6 configured
      copy: src=configs/20-ipv6.tmp dest=/etc/network/interfaces.d/20-ipv6.cfg owner=root group=root mode=0644
      
    - name: IPv6 included into the network config
      lineinfile: dest=/etc/network/interfaces line='source /etc/network/interfaces.d/20-ipv6.cfg' state=present
      
    - name: IPV6 is running
      shell: sh -c 'ifdown eth0; ip addr flush dev eth0; ifup eth0'

    - name: Wait for SSH to become available
      local_action: "wait_for port=22 host={{ inventory_hostname }} timeout=320"
      become: false