Support non-preempting priority classes

[therc]

Description

The feature has been in beta since 1.19. It boils down to a new field,

PreemptionPolicy: PreemptLowerPriority (default) | Never

References

https://kubernetes.io/docs/concepts/scheduling-eviction/pod-priority-preemption/#non-preempting-priority-class

Community Note

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[pduboucher]

Is there a workaround to adding this to our cluster until this implemented? I've tried adding a PriorityClass via terraform, then adding the PreemptionPolicy manually, to see if it could be imported, but I have not had any success.

[junaid-ali]

@pduboucher I'm currently using kubectl_manifest from this provider: gavinbunney/kubectl

resource "kubectl_manifest" "categorizer-priority" {
  yaml_body = yamlencode({
    apiVersion = "scheduling.k8s.io/v1"
    kind       = "PriorityClass"
    metadata = {
      name = var.priority_class_name
    }
    value            = 100
    preemptionPolicy = "Never"
    description      = "This priority class will not cause other pods to be preempted."
  })
}

[pduboucher]

@pduboucher I'm currently using kubectl_manifest from this provider: gavinbunney/kubectl

resource "kubectl_manifest" "categorizer-priority" {
  yaml_body = yamlencode({
    apiVersion = "scheduling.k8s.io/v1"
    kind       = "PriorityClass"
    metadata = {
      name = var.priority_class_name
    }
    value            = 100
    preemptionPolicy = "Never"
    description      = "This priority class will not cause other pods to be preempted."
  })
}

Great, thanks a lot for that - works well!

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