Here is a typical example:

require 'rubygems' if RUBY_VERSION < '1.9'
require 'rightstuff'

include Rightstuff::Credentials

rs = Rightstuff::Client.new( rightscale_data[ :main ][ :credentials ] )
servers = rs.servers
servers.each{ |server| puts server.private_ip_address }

server_arrays = rs.server_arrays
servers.each{ |array| puts("Array #{array.nickname} is running #{array.active_instances_count || 0} instances.") }

active_array = server_arrays.detect{|array| array.active_instances_count.to_i > 0}
array_instances = active_array.instances
puts("Array #{active_array.nickname}'s private IP address[es]: #{array_instances.map(&:private_ip_address) * ', '}")

Rightstuff::Credentials assumes you have a YAMl file called ~/.rightstuff It should be of the form:

---
:main:
  :credentials:
    :username: myusername
    :password: mypass
    :account:  1234

$ sudo gem install rightstuff

• Source code

• Documentation

• Gem

• github.com/rightscale/right_link - RightScale’s messaging API for live servers

• github.com/rightscale/right_aws

• github.com/moneypools/right_api

• joeyates

• kwerle

• Cache connections