deploy.yaml

heat_template_version: 2013-05-23

description: This template deploys a single instance server.

parameters:
  web_nodes_count:
    type: number
    description: Number of web heads to use

resources:
  web:
    type: OS::Heat::ResourceGroup
    properties:
      count: { get_param: web_nodes_count }
      resource_def:
        type: OS::Nova::Server
        properties:
          name: drawbuildplay_%index%
          image: Ubuntu 14.04 LTS (Trusty Tahr) (PV)
          flavor: 512MB Standard Instance
          user_data_format: RAW
          user_data:
            str_replace:
              params:
                username: 'gandhi'
              template: |
                #!/bin/bash -ex

                # Updates
                apt-get update
                apt-get -qqy install nginx

                # download docker
                curl -sSL https://get.docker.io/ubuntu/ | sudo sh

                # create a website user to run the server process
                adduser --disabled-password --gecos "" gandhi

                docker pull drawbuildplay/drawbuildplay
                docker pull drawbuildplay/gandhi.co.nz
                docker run -d -p 8080:80 -i drawbuildplay/drawbuildplay
                docker run -d -p 8081:80 -i drawbuildplay/gandhi.co.nz

                # configure nginx as the front-end web server with a reverse proxy
                # rule to the docker server
                cat >/etc/nginx/sites-available/drawbuildplay <<EOF
                server {
                    listen 80;
                    server_name drawbuildplay.com;
                    access_log /var/log/nginx/drawbuildplay.access.log;
                    error_log /var/log/nginx/drawbuildplay.error.log;
                    location / {
                        proxy_pass http://0.0.0.0:8080;
                        proxy_redirect off;
                        proxy_set_header Host \$host;
                        proxy_set_header X-Real-IP \$remote_addr;
                        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                    }
                }
                EOF

                # configure nginx as the front-end web server with a reverse proxy
                # rule to the docker server
                cat >/etc/nginx/sites-available/gandhi <<EOF
                server {
                    listen 80;
                    server_name gandhi.co.nz;
                    access_log /var/log/nginx/gandhi.co.nz.access.log;
                    error_log /var/log/nginx/gandhi.co.nz.error.log;
                    location / {
                        proxy_pass http://0.0.0.0:8081;
                        proxy_redirect off;
                        proxy_set_header Host \$host;
                        proxy_set_header X-Real-IP \$remote_addr;
                        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                    }
                }
                EOF
                rm -f /etc/nginx/sites-enabled/default
                ln -s /etc/nginx/sites-available/drawbuildplay /etc/nginx/sites-enabled/
                ln -s /etc/nginx/sites-available/gandhi /etc/nginx/sites-enabled/
                service nginx restart