steve-todorov / hello-spring-boot3-native

Getting Started

Reference Documentation

For further reference, please consider the following sections:

• Official Gradle documentation
• Spring Boot Gradle Plugin Reference Guide
• Create an OCI image
• GraalVM Native Image Support
• Spring Reactive Web
• Spring Configuration Processor

Guides

The following guides illustrate how to use some features concretely:

• Building a Reactive RESTful Web Service

Additional Links

These additional references should also help you:

• Gradle Build Scans – insights for your project's build
• Configure AOT settings in Build Plugin

GraalVM Native Support

This project has been configured to let you generate either a lightweight container or a native executable. It is also possible to run your tests in a native image.

Lightweight Container with Cloud Native Buildpacks

If you're already familiar with Spring Boot container images support, this is the easiest way to get started. Docker should be installed and configured on your machine prior to creating the image.

To create the image, run the following goal:

$ ./gradlew bootBuildImage

Then, you can run the app like any other container:

$ docker run --rm hello-spring-boot3-native:0.0.1-SNAPSHOT

Executable with Native Build Tools

Use this option if you want to explore more options such as running your tests in a native image. The GraalVM native-image compiler should be installed and configured on your machine.

NOTE: GraalVM 22.3+ is required.

To create the executable, run the following goal:

$ ./gradlew nativeCompile

Then, you can run the app as follows:

$ build/native/nativeCompile/spring-boot-3-native

You can also run your existing tests suite in a native image. This is an efficient way to validate the compatibility of your application.

To run your existing tests in a native image, run the following goal:

$ ./gradlew nativeTest