# File lib/fog/rackspace/identity.rb, line 43
        def initialize(options={})
          @rackspace_username = options[:rackspace_username]
          @rackspace_api_key = options[:rackspace_api_key]
          @rackspace_auth_url = options[:rackspace_auth_url] || US_ENDPOINT

          uri = URI.parse(@rackspace_auth_url)
          @host = uri.host
          @path = uri.path
          @port = uri.port
          @scheme = uri.scheme
          @persistent = options[:persistent] || false
          @connection_options = options[:connection_options] || {}
          @connection = Fog::Connection.new(uri.to_s, @persistent, @connection_options)

          authenticate
        end