Configuration

You can configure

How to provide configuration

Configuration is passed as environment variables, defined in the CustomPodAutoscaler YAML. This allows modifying these values at deploy time, and overriding defaults.
For example:

apiVersion: custompodautoscaler.com/v1alpha1
kind: CustomPodAutoscaler
metadata:
  name: horizontal-pod-autoscaler-example
spec:
  template:
    spec:
      containers:
      - name: horizontal-pod-autoscaler-example
        image: horizontal-pod-autoscaler:latest
        imagePullPolicy: Always
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: php-apache
  config: 
    - name: minReplicas
      value: "1"
    - name: maxReplicas
      value: "3"
    - name: interval
      value: "30000"
    - name: tolerance
      value: "0.2"
    - name: downscaleStabilization
      value: "120"
    - name: metrics
      value: |
        - type: Resource
          resource:
            name: cpu
            target:
              type: Utilization
              averageUtilization: 50

cpuInitializationPeriod

Example:

    - name: cpuInitializationPeriod
      value: "150"

Default value: 300 (5 minutes).
Set in seconds.
Equivalent to --horizontal-pod-autoscaler-cpu-initialization-period; the period after pod start when CPU samples might be skipped.

initialReadinessDelay

Example:

    - name: initialReadinessDelay
      value: "45"

Default value: 30 (30 seconds).
Set in seconds.
Equivalent to --horizontal-pod-autoscaler-initial-readiness-delay; the period after pod start during which readiness changes will be treated as initial readiness.

tolerance

Example:

    - name: tolerance
      value: "0.2"

Default value: 0.1.
Equivalent to --horizontal-pod-autoscaler-tolerance; the minimum change (from 1.0) in the desired-to-actual metrics ratio for the horizontal pod autoscaler to consider scaling.

metrics

Example:

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

Equivalent to K8s HPA metric specs; which are demonstrated in this HPA walkthrough.
Can hold multiple values as it is an array.