RFC: Custom metric adapter for kubernetes

[hexedpackets]

Problem

Kubernetes supports autoscaling through different sources. Right now using a metric from heroic to autoscale is cumbersome and involves shipping the metric to a second datastore that supports autoscaling.

Suggestion

To make autoscaling easy, we can write a custom metric adapter. This would be deployed in the kubernetes cluster and query heroic based on requests from the kubernetes API.

Related issues

none