Mongoid Initializer for CloudFoundry

CloudFoundry Push

alexle:pushpuppy sr3d$ vmc push pushpuppy --runtime ruby19
Would you like to deploy from the current directory? [Yn]: 
Application Deployed URL: 'pushpuppy.cloudfoundry.com'? 
Detected a Rails Application, is this correct? [Yn]: 
Memory Reservation [Default:256M] (64M, 128M, 256M, 512M or 1G) 
Creating Application: OK
Would you like to bind any services to 'pushpuppy'? [yN]: y
Would you like to use an existing provisioned service [yN]? N
The following system services are available::
1. mongodb
2. mysql
3. redis
Please select one you wish to provision: 1
Specify the name of the service [mongodb-XXXXX]: 
Creating Service: OK
Binding Service: OK
Uploading Application:
  Checking for available resources: OK
  Processing resources: OK
  Packing application: OK
  Uploading (8K): OK   
Push Status: OK
Staging Application: OK                                                         
Starting Application: OK                               

mongoid.rb

require 'json' # explicitly requires json

# initialize the environment for CloudFoundry
# you will have to remove the mongoid.yml file otherwise Mongoid
# will read that file and try to connect, and will error out.
if ENV['VCAP_SERVICES']
  # get the config from VCAP
  # http://support.cloudfoundry.com/entries/20018322-alert-mongo-bindings-have-changed
  def mongo_connection_info
    services = JSON.parse(ENV['VCAP_SERVICES'])
    services.each do |service_version, bindings|
      bindings.each do |binding|
        if binding['label'] =~ /mongo/i
          res = binding['credentials']
          return res
        end
      end
    end

    raise "could not find connection info"
  end

  conn_info = mongo_connection_info
  
  # configure Mongoid to connect to the db using VCAP connection info
  Mongoid.configure do |config|
    name = conn_info['db'] || 'app'
    host = conn_info['hostname']
    
    options = { 
      "database" => conn_info['db'] || 'app',
      "host"     => conn_info['hostname'],
      "port"     => conn_info['port'].to_i,
      
      "autocreate_indexes"     => false,
      "allow_dynamic_fields"   => true,
      "include_root_in_json"   => false,
      "parameterize_keys"      => true,
      "persist_in_safe_mode"   => false,
      "raise_not_found_error"  => true,
      "reconnect_time"         => 3
    }
    
    if conn_info['username'] and conn_info['password']
      options['username'] = conn_info['username']
      options['password'] = conn_info['password']
    end
    
    config.from_hash(options)
  end
end