I have a Java program which exits with code 0 or 1 to identify whether the process is successful. I want to use kubectl run to run it in a remote kubernetes cluster. It works fine but how could I get the Java program exit code then. Because no matter how the Java program exits, the pod is always successful. I have to use interactive mode because it gives me logs when running. Is there any way that I can get the exit code? Or is there any way that a Java program to escalate its exit code to the pod system?

Hi I have 50 or so APIs deployed using various JVM from 8 to 21. And when I call Runtime.getRuntime().maxMemory() In some app it’s prints the correct memory and some it prints way above the actual pod limit.

I’m trying to get programatically something similar to kubectl top node. I can get each node cpu/memory usage info and I also want to print the %, but I don’t know where can I find information about the total to compare against.
Example:

Been getting this error from many days initialization – cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘processorMetrics’ defined in class path resource [org/springframework/boot/actuate/autoconfigure/metrics/SystemMetricsAutoConfiguration.class]: Failed to instantiate [io.micrometer.core.instrument.binder.system.ProcessorMetrics]: Factory method ‘processorMetrics’ threw exception with message: java.lang.reflect.InvocationTargetException
this only happens in k8s and not in k3s and minikube why??

I’ve read multiple articles about best practices for setting the {Min/Max/Initial}RAMPercentage values for java applications in the cloud environment. The purpose of Min and Max RAM Percentage flags is clear for me.

I’m using a local cluster that is Kind to test an application that has to run inside a Pod.The pourpose is to see if the application running inside a Pod is able to authenticate to the API server with a service account that I have already created. I created the application using Java leaveraging the kubernetes.io library as follow: