Metrics

Deciding which metrics to use is done by using MetricSpecs, which are a key part of HPAs, and look like this:

- type: Resource
  resource:
    name: cpu
    target:
      type: Utilization
      averageUtilization: 50

To send these specs to the CPA-HPA, add a config option called metrics to the CPA, with a multiline string containing the metric list. For example:

config: 
  - name: metrics
    value: |
      - type: Resource
        resource:
          name: cpu
          target:
            type: Utilization
            averageUtilization: 50

This allows porting over existing Kubernetes HPA metric configurations to the Custom Pod Autoscaler HPA.
See the configuration reference for more details.