private DiscoveryEnabledServer createServer(String host, int port, String zone) {
    AmazonInfo amazonInfo =
        AmazonInfo.Builder.newBuilder()
            .addMetadata(AmazonInfo.MetaDataKey.availabilityZone, zone)
            .build();

    Builder builder = InstanceInfo.Builder.newBuilder();
    InstanceInfo info =
        builder
            .setAppName("l10nservicegeneral")
            .setDataCenterInfo(amazonInfo)
            .setHostName(host)
            .setPort(port)
            .build();
    DiscoveryEnabledServer server = new DiscoveryEnabledServer(info, false);
    server.setZone(zone);
    return server;
  }