PodDisruptionBudget needed for autoscaling

[gsf]

/kind bug

What happened?
The autoscaler can't remove nodes when ebs-csi-controller pods running in the kube-system namespace are lacking a PodDisruptionBudget. See this similar issue:
kubernetes/autoscaler#350

Could a PodDisruptionBudget be added to the Helm chart? Looks like there's a good example in the nginx-ingress chart:
https://github.com/helm/charts/blob/master/stable/nginx-ingress/templates/controller-poddisruptionbudget.yaml

Environment

• Kubernetes version (use kubectl version): 1.14.9
• Driver version: 0.5.0

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[gsf]

Our workaround for now is setting the following in the chart values:

podAnnotations:
  cluster-autoscaler.kubernetes.io/safe-to-evict: "true"

A default PodDisruptionBudget would still be preferable, however, so this issue is still valid.

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[k8s-ci-robot]

@fejta-bot: Closing this issue.

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[vdhanan]

/assign

[vdhanan]

/reopen

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[vdhanan]

@gsf could you please re-open this issue?

[ayberk]

/reopen

[k8s-ci-robot]

@ayberk: Reopened this issue.

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/reopen

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@fejta-bot: Closing this issue.

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[ayberk]

/reopen
/lifecycle frozen

[k8s-ci-robot]

@ayberk: Reopened this issue.

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/reopen
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