Config.yaml Location

[vobrien-axway]

Can the config.yaml be placed in different location or overridden in anyway? It's current location means that I haven't been able to overwrite it as a configmap without setting readOnlyRootFilesystem: false, which our cluster policies doesn't allow. Or is there some other way of overwriting the values in that file, such as downscaleStabilization or the metric name

[jthomperoo]

Hi @vobrien-axway, yes the location of the config.yaml file can be configured through the environment variable configPath:
https://custom-pod-autoscaler.readthedocs.io/en/latest/reference/configuration/#configpath

You can pass any configuration value as an environment variable:
https://custom-pod-autoscaler.readthedocs.io/en/latest/reference/configuration/#configuration-passed-as-environment-variables-defined-in-deployment-yaml

You provide this in the Custom Pod Autoscaler definition, for example:

apiVersion: custompodautoscaler.com/v1
kind: CustomPodAutoscaler
metadata:
  name: simple-pod-metrics-python
spec:
  template:
    spec:
      containers:
      - name: simple-pod-metrics-python
        image: simple-pod-metrics-python:latest
        imagePullPolicy: IfNotPresent
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: flask-metric
  config:
    - name: configPath
      value: "/my/custom/config.yaml"

This would set the CPA to look for the config file at /my/custom/config.yaml

Hope that helps!