Alibaba Socket GraalVM native-image with Spring Boot 3

Alibaba RSocket GraalVM native-image demo with Spring Boot 3

Requirements

• GraalVM 22.3.0 with native-image installed https://www.graalvm.org/downloads/

How to run

$ # switch to GraalVM 22.3.0
$ mvn -Pnative -DskipTests clean package native:compile
$ ./target/ali-rsocket-graal-boot3-demo
$ # open a new tab
$ curl http://localhost:8183/user/1

Native assist

For details, please refer: https://www.graalvm.org/reference-manual/native-image/BuildConfiguration/#assisted-configuration-of-native-image-builds

How to run app with native-image-agent mode?

$ mkdir -p target/native-image
$ java -agentlib:native-image-agent=config-output-dir=./target/native-image/ -jar target/ali-rsocket-graal-boot3-demo.jar

Then check assisted configurations under target/native-image/

Compress executable binary with upx

Compress GraalVM native image binary with UPX:

$ upx -7 -k target/ali-rsocket-graal-demo  

GraalVM Native Image guide

• If you want to access remote RSocket Service, please register interface to AppRuntimeHintsRegistrar.java, then add .nativeImage() to create service call stub.

    @Bean
    public UserService userService(UpstreamManager upstreamManager) {
        return RSocketRemoteServiceBuilder
                .client(UserService.class)
                .upstreamManager(upstreamManager)
                .nativeImage()
                .build();
    }

• If you want to publish RSocket Service, please add interface & implementation to reflection-config.json

References

• RSocket: https://rsocket.io/
• GraalVM: https://www.graalvm.org/
• Alibaba RSocket Broker: https://github.com/alibaba/alibaba-rsocket-broker
• upx: the Ultimate Packer for eXecutables https://github.com/upx/upx
• Spring Boot GraalVM Native Image Support: https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#native-image