HPA should use metrics server instead of heapster

[smoell]

Kubernetes App Auto Scaling (304) is not working for EKS (Kubernetes 1.10), because HPA doesn't receive metric data. Please use HPA2 for Kubernetes 1.9 or later.

[xydinesh]

I ran into same issue with EKS, but then it looked like a known issue.
https://serverfault.com/questions/917831/horizontalpodautoscaling-on-amazon-eks/918535

What do you mean by HPA2 ? HPA is a critical feature for us to use with EKS. Appreciate any help with this.

[buzzsurfr]

This issue is on hold while we wait for EKS to support metrics-server.

[nbrandaleone]

In the latest release, metrics-server is now working. You still need heapster installed for HPA to work.

[nbrandaleone]

My error - you do not NEED heapster installed for HPA to work. However, you must install the metric-server manually.