How does Splunk Observability correlate APM and Infrastructure Data?

[Christopher_Oje]

I have instrumented a Kubernetes cluster in a test environment.  I have also instrumented a java application within that cluster.  Metrics are reporting for both.  However, within APM, when clicking at infrastructure at the bottom of the screen, I get no data as if I have no infrastructure configured.  What configuration am I missing to correlate the data between the two?  

Clicking Infrastructure Under an Instrumented APM Service

[bishida]

This page might help:
https://docs.splunk.com/observability/en/metrics-and-metadata/relatedcontent.html#splunk-infrastruct...

You may want to look at service.name, k8s.cluster.name, k8s.pod.name values to see if they're what you expect. 

Other ideas to possibly consider:
Are you using the Splunk Helm chart to deploy OTel to your Kubernetes cluster?
Did you configure the operator in the Helm chart to instrument your Java app?
Did you overwrite or change any resourcedetection processors?