remove namespace field from scaleTargetRef for hpa

[fivesheep]

Trying to enable hpa with this chart and getting the following error

unable to build kubernetes objects from release manifest: error validating "": error validating data: ValidationError(HorizontalPodAutoscaler.spec.scaleTargetRef): unknown field "namespace" in io.k8s.api.autoscaling.v2beta1.CrossVersionObjectReference

per HorizontalPodAutoscaler spec, it doesn't have this namespace field from scaleTargetRef, removing this line shall fix it. more example can be found from https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough/#autoscaling-on-multiple-metrics-and-custom-metrics

[divyansh-gupta]

@fivesheep - Thank you for the pull request, we will review it soon. Can you please confirm that when you removed the line locally, HPA worked for you?

[fivesheep]

@divyansh-gupta yes, it works after deleting that line. however, the version of the hpa we have is a bit old. I am getting this error

Warning: autoscaling/v2beta1 HorizontalPodAutoscaler is deprecated in v1.22+, unavailable in v1.25+; use autoscaling/v2 HorizontalPodAutoscaler
horizontalpodautoscaler.autoscaling/aws-privateca-issuer created

i can update this from the same pr to upgrade this to autoscaling/v2

[bmsiegel]

That'd be great if you wouldn't mind adding that. Thanks!

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[fivesheep]

@bmsiegel the pr has been updated and tested

[fivesheep]

test failure seems to be unrelated, the command from the test as shown below, didn't even trigger the hpa logic, which is off by default

helm install issuer ./charts/aws-pca-issuer -n aws-privateca-issuer \
--set serviceAccount.create=false --set serviceAccount.name=aws-privateca-issuer-sa \
--set image.repository="localhost:5000/aws-privateca-issuer" --set image.tag=latest --set image.pullPolicy=Always

[bmsiegel]

Yea I agree, I merged a fix to this recently (ccf4d25). Would you mind rebasing?

[bmsiegel]

Thanks, running testing now

[cert-manager-prow]

PR needs rebase.

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