What would you like to be added?

Following up on the slack thread, creating this placeholder issue to add support for instrumenting native histograms in Kubernetes metrics.

Why is this needed?

Native histograms were added to Prometheus that have some nice features around having dynamic bucketing for histograms, reduced cardinality to name a few.

Following are some considerations we should keep in mind when working on native histogram support for K8s metrics (ensure we continue to support both classic histograms meanwhile). As of today, native histograms

• is still an experimental feature in Prom
• only supports Prom protobuf exposition format