Springboot Jeka - Simple Demo

This showcase how to build a Spring-Boot application with JeKa with default options. It also outlines how a building docker and native images can be achieved at no additional cost.

We don't need Java code to configure the build : all configuration lies in dependencies.txt and jeka.properties.

Popular Build Commands

Create jar:

jeka pack

Clean and Create a bootable jar:

jeka pack --clean

Create bootable jar skipping tests:

jeka pack "-Djeka.skip.tests=true" --clean 

Run jar

jeka runJar run.programArgs="" run.jvmOptions=""

Synchronize IntelliJ

jeka intellij: sync

Docker JVM

The following commands requires a Docker cli (such as Docker Desktop) on the host.

Create a Docker Image of the Spring-Boot Application.

jeka docker: build

Show Details about of the Docker Image.

jeka docker: info

Docker Native

Native compilation does not have any requisite.

Create a Docker Image containing the Native Executable of the Application (smaller and faster).

jeka docker: buildNative

Create a minimalist native Docker Image:

jeka docker: buildNative nativeBaseImage=gcr.io/distroless/static-debian12:nonroot native: staticLink=MUSL

Execute the Docker Image:

docker run --rm -p 8080:8080 native-demo-springboot-simple:latest

Show Details about of the Docker Native Image:

jeka docker: infoNative