Getting started

• First, create Docker image to use native image generation (which contains graalvm-jdk and native-image)

  docker build -t mndeveci/graal-native-image-graal:latest .

• Compile and create fat jar for lambda

  ./gradlew clean shadowJar

• Then, run the following command to generate native app, which could be run at any linux 64bit system

  docker run -it \
   -v /Users/mndeveci/workspace/graal/aws-ddb-s3/build/libs/:/project --rm \
   mndeveci/graal-native-image-graal:latest \  
   --static -cp . -jar aws-native-lambda-ddb-s3-1.0-SNAPSHOT.jar \  
   --no-server \  
   --no-fallback \  
   --verbose \  
   --enable-all-security-services  
   -H:Name=app \  
   -H:+ReportExceptionStackTraces  \  
   -H:-AllowVMInspection \  
   -H:-UseServiceLoaderFeature \  
   -R:-InstallSegfaultHandler \  
   -H:EnableURLProtocols=http,https \  
   -H:IncludeResources="logging.properties" \  
   -H:Class=com.mndeveci.NativeExecutor \  
   -H:ReflectionConfigurationFiles=config.json \  
   -H:DynamicProxyConfigurationFiles=proxy-config.json \  
   -H:DynamicProxyConfigurationResources=proxy-config.json \  
   -H:ResourceConfigurationFiles=resource-config.json \
  

References

• https://royvanrijn.com/blog/2018/09/part-1-java-to-native-using-graalvm/
  • https://github.com/royvanrijn/graalvm-native-microservice
• https://medium.com/@mathiasdpunkt/fighting-cold-startup-issues-for-your-kotlin-lambda-with-graalvm-39d19b297730
• https://qiita.com/kencharos/items/69e43965515f368bc4a3
  • https://github.com/kencharos/try-graal-lambda
• https://engineering.opsgenie.com/run-native-java-using-graalvm-in-aws-lambda-with-golang-ba86e27930bf