How to provide custom SSLContext to Netty server on spring boot - spring-boot

Question

How can we configure a custom SSLContext to a spring boot application with Netty server?
From the source code, I see 'reactor.ipc.netty.http.server.HttpServerOptions' which are some server startup options, but I don't find a way to configure them.
Is there any handler through which we can inject our custom SSLContext?
I am looking something similar to this (Spring 5 WebClient using ssl) where WebClient is configured with a custom SSLContext through 'reactor.ipc.netty.http.client.HttpClientOptions'.

Answer 1

Netty can be customized like blow example in spring-boot 2.
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.web.embedded.netty.NettyReactiveWebServerFactory;
import org.springframework.boot.web.server.ErrorPage;
import org.springframework.boot.web.server.Ssl;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;
/**
* author : Mohammad Ghoreishi
*/
#Configuration
#ImportResource({"classpath:convert-iban-service.xml", "classpath:config-loader-context.xml", "classpath*:error-resolver.xml"})
#EnableAutoConfiguration
public class Application {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
#Bean
public WebServerFactoryCustomizer<NettyReactiveWebServerFactory> customizer(){
return new WebServerFactoryCustomizer<NettyReactiveWebServerFactory>() {
#Override
public void customize(NettyReactiveWebServerFactory factory) {
Ssl ssl = new Ssl();
// Your SSL Cusomizations
ssl.setEnabled(true);
ssl.setKeyStore("/path/to/keystore/keystore.jks");
ssl.setKeyAlias("alias");
ssl.setKeyPassword("password");
factory.setSsl(ssl);
factory.addErrorPages(new ErrorPage("/errorPage"));
}
};
}
}