I'm successfully debugging Spring Boot applications written in Java inside Kubernetes using the following setup:

• Add -Dspring-boot.run.jvmArguments="-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005" to the mvn spring-boot:run command line in Dockerfile.

• Add

  - name: java-debug
    containerPort: 5005

  to spec.containers.ports of the Deployment and

  - name: java-debug
    protocol: TCP
    port: 5005
    targetPort: 5005

  to spec.ports of the Service.

• Add a Remote run configuration with Debugger mode set to Attach to remove JVM and the host of the Service.

Doing the same for a Kotlin project, the debugger connects to the JVM and accepts breakpoints, however, doesn't stop at them, no matter how often I execute the code where it should stop. The code is executed on k8s according to logs and application feedback.

I'm testing this locally on microk8s using IntelliJ 2019.1.2 CE.