HPAs on Kubernetes version 1.20.6 do not use the correct apiVersion

[Magnus010]

Kubernetes version 1.20.6 does not recognize the autoscaling/v2 api. I believe the autoscaling/v2 api was introduced in Kubernetes version 1.23.

A possible solution would be adding this to the _capabilities.tpl:

{{/*
Return the appropriate apiVersion for HorizontalPodAutoscaler object.
*/}}
{{- define "capabilities.horizontalPodAutoscaler.apiVersion" -}}
{{- if semverCompare "<1.23-0" ( .Values.kubeVersion | default .Capabilities.KubeVersion.Version ) -}}
{{- print "autoscaling/v2beta2" -}}
{{- else -}}
{{- print "autoscaling/v2" -}}
{{- end -}}
{{- end -}}

And updating the hpa.yaml with apiVersion: {{ include "capabilities.horizontalPodAutoscaler.apiVersion" . }}
Thank you!

[tuunit]

1.20.6 is nearly 5 years old 😅

[tuunit]

But sure feel free to open a PR :)

[Magnus010]

Hah, I wish we did not have to use that old version of Kubernetes.
I'll open a PR. Thanks!

[Magnus010]

Thank you!

[tuunit]

You are welcome