The critical element in scaling Pods is the Kubernetes Metrics Server. You might consider yourself a Kubernetes ninja and yet never heard of the Metrics Server. Don't be ashamed if that's the case. You're not the only one.
If you started observing Kubernetes metrics, you might have used Heapster. It's been around for a long time, and you likely have it running in your cluster, even if you don't know what it is. Both serve the same purpose, with one being deprecated for a while, so let's clarify things a bit.
Early on, Kubernetes introduced Heapster as a tool that enables Container Cluster Monitoring and Performance Analysis for Kubernetes. It's been around since Kubernetes version 1.0.6. You can say that Heapster ...
