@Bean
    public ArmeriaServerConfigurator armeriaServiceInitializer(JettyService jettyService) {
        return sb -> sb.serviceUnder("/", jettyService);
    }
Returns a new {@link ArmeriaServerConfigurator} that is responsible for configuring a {@link Server}
using the given {@link ServerBuilder}.
examples/spring-boot-jetty/src/main/java/example/springframework/boot/jetty/HelloConfiguration.java