Using fog with Rackspace apis to control OpenStack.

test_fog.rb

#!/usr/bin/ruby

$: << 'fog/lib'
require 'fog'

# Get your api key / token `keystone-mange token list`
compute = Fog::Compute.new(:provider => 'Rackspace',
                           :rackspace_auth_token => '887665443383838',
                           :rackspace_management_url => 'http://127.0.0.1:8774/v1.0/',
                           :rackspace_username => 'joeuser',
                           :rackspace_api_key =>  'FAKE-BUT-REQUIRED',
                           :rackspace_auth_url => 'FAKE AND NOT REQUIRED')

flavors = compute.flavors
smallest_flavor = flavors.sort_by(&:ram).first
puts "Found #{flavors.length} flavors"
puts flavors.collect{|x| "> #{x.name}"}.join("\n")
puts "Smallest flavor has #{smallest_flavor.ram} RAM " +
     "and #{smallest_flavor.disk} disk"
puts ""

images = compute.images
first_ami = images.detect{|x| x.name =~ /^ami-/}
puts "Found #{images.length} images"
puts images.collect{|x| "> #{x.name}"}.join("\n")
puts "Using AMI-type image #{first_ami.name}"
puts ""

servers = compute.servers
puts "Found #{servers.length} servers"
puts servers.collect{|x| "> #{x.name}"}.join("\n")

server = compute.servers.create(:flavor_id => smallest_flavor.id,
                                :image_id => first_ami.id,
                                :name => 'Demo-Server')

puts "Sleeping to let server get scheduled"
sleep(4)

servers = compute.servers
puts "Found #{servers.length} servers"
puts servers.collect{|x| "> #{x.name}"}.join("\n")

server.wait_for{ ready? }

if server.ready?
  puts "Server became ready."
else
  puts "It looks like the server never became ready :("
end
puts "Cleaning up"