Quarkus is a Kubernetes-native Java stack that's tailored for GraalVM and OpenJDK HotSpot, which helps Java programs run 10X faster, while being 100X smaller. It also improves the developer experience by adding features like live reloading/debugging and persistence with Panache.

Its integration with the Eclipse MicroProfile specification makes it the perfect choice for developing microservices and deploying them with Kubernetes.

To create a Quarkus service, you just need to run the next Maven goal into an empty directory:

 mvn io.quarkus:quarkus-maven-plugin:0.22.0:create \ 
 -DprojectGroupId=org.acme \ 
 -DprojectArtifactId=hello-world \ 
 -DclassName="org.acme.quickstart.GreetingResource" \ 
 -Dpath="/hello"

Quarkus applications come with a live reload feature that allows the developer to make changes to their source code which will be directly reflected in the deployed code, without having to recompile or repack- age the source code.

./mvnw compile quarkus:dev

This is a preview of the Quarkus Refcard. To read the entire Refcard, please download the PDF from the link above.