Lab 5: Spring Native and GraalVM

Learning goals

• Understanding native executables with GraalVM
• Building native images with Spring Boot 3
• Testing native applications
• Packaging native applications

Overview

1. Explore the application business logic and Gradle configuration.
2. Install GraalVM as described in the next section.
3. Compile the Spring Boot 3 application with GraalVM (command: ./gradlew nativeCompile) .
4. Run the native executable and test the application works as intended (command: /build/nativeCompile/05-demo).
5. Test the application as a native executable (command: ./gradlew nativeTest).
6. Containerize the application as a native executable (command: ./gradlew bootBuildImage).
7. Run the container on Docker and test the application works as intended.

Tips

You can install GraalVM using sdkman.

sdk install java 22.3.r17-grl

Configure your current terminal shell to use GraalVM as the Java distribution.

sdk use java 22.3.r17-grl

Next, install the native-image component from GraalVM.

gu install native-image