    # File lib/fog/rackspace/storage.rb, line 36
            def cdn
              @cdn ||= Fog::CDN.new(
                :provider           => 'Rackspace',
                :rackspace_api_key  => @rackspace_api_key,
                :rackspace_auth_url => @rackspace_auth_url,
                :rackspace_username => @rackspace_username
              )
              if @cdn.enabled?
                @cdn
              end
            end