Native Compiled Java Microservices
In this chapter, we will learn how to compile the Java source code in our microservices into binary executable files, known as native images. A native image starts up significantly faster compared to using a Java VM and is also expected to consume less memory. We will be introduced to the Spring Native and GraalVM projects and the GraalVM native-image compiler and learn how to use them.
We will cover the following topics:
- When to native compile Java source code
- Introducing the Spring Native and GraalVM projects
- Compiling source code to a native image
- Testing with Docker Compose
- Testing with Kubernetes
At the time of writing, the Spring Native project only has beta status and is not ready for production use. As such, certain guidance in this chapter is liable to become outdated as the Spring team improves the project in the future. Native compilation is not required for the microservice landscape we...