101-docker

Motivation

Understand the JVM & Non JVM ecosystem comparing:

• Container application running with the JVM support
• Container application running with GraalVM native support
• Container application running with WASM support

And reviewing the scenarios in terms of CPU & Memory for a financial point of view in the middle term.

A microservice architecture to be evaluated with Spring Boot applications & GraalVM native capabilities

https://spring.io/microservices

Microservices are a modern approach to software whereby application code is delivered in small, manageable pieces, independent of others.

Usecase 1: Interservice communication in microservices

• [x] HTTP Rest communications (A <- B)
• [ ] Database transactions

Usecase 2: Observability

• [ ] With Prometheus, Prometheus & Zipkin
• [ ] With Graphana, Tempo & Loki
• [ ] With Elastic stack

Usecase 3: Event Driven

• [ ] Event driven communications (A -> Event Store)

Usecase 4: Security

• [ ] Security patterns

Issues detected

Some notes from the tests using Spring Boot 3 native features.

• [ ] musl support is not implemented with buildpacks
• [ ] upx support is not possible in OSX
• [ ] Buildpacks has a different behaviour (size) between OSX & Ubuntu in terms of sizes of native apps
• [ ] --static is not available for OSX raised when native application A call endpoint B using http

References

• https://github.com/graalvm/graalvm-demos
• https://spring.io/blog/2022/09/26/native-support-in-spring-boot-3-0-0-m5
• https://github.com/oktadev/native-java-examples
• https://docs.spring.io/spring-native/docs/current/reference/htmlsingle/
• https://docs.spring.io/spring-boot/docs/current/maven-plugin/reference/htmlsingle/
• https://graalvm.github.io/native-build-tools/latest/
• https://graalvm.github.io/native-build-tools/latest/maven-plugin.html
• https://start.spring.io/
• https://github.com/wagoodman/dive
• https://spring.io/guides/gs/spring-boot-docker/
• https://docs.spring.io/spring-boot/docs/current/maven-plugin/reference/htmlsingle/
• https://console.cloud.google.com/gcr/images/paketo-buildpacks/GLOBAL/bellsoft-liberica
• https://github.com/paketo-buildpacks/bellsoft-liberica
• https://github.com/paketo-buildpacks/java-native-image
• https://spring.io/microservices
• http://more.musl.cc/
• https://docs.docker.com/compose/
• https://www.docker.com/blog/docker-wasm-technical-preview/
• https://github.com/actions/upload-artifact

Previous talks

• https://github.com/jabrena/crossing-the-chasm-native-images