# File lib/fog/sakuracloud/requests/volume/associate_ip_to_disk.rb, line 7
        def associate_ip_to_disk( disk_id, subnet )
          body = {
            "UserIPAddress" => subnet[:ipaddress],
            "UserSubnet" => {
              "NetworkMaskLen" => subnet[:networkmasklen],
              "DefaultRoute" => subnet[:defaultroute]
            }
          }

          request(
            :headers => {
              'Authorization' => "Basic #{@auth_encode}"
            },
            :expects  => [200],
            :method => 'PUT',
            :path => "#{Fog::SakuraCloud.build_endpoint(@api_zone)}/disk/#{disk_id.to_s}/config",
            :body => Fog::JSON.encode(body)
          )
        end