// MinReplicasLowerBound represents a minimum value for minReplicas
	// 0 when HPA scale-to-zero feature is enabled
	var minReplicasLowerBound int32

	if utilfeature.DefaultFeatureGate.Enabled(features.HPAScaleToZero) {
		minReplicasLowerBound = 0
	} else {
		minReplicasLowerBound = 1
	}
	allErrs = append(allErrs, validateHorizontalPodAutoscalerSpec(autoscaler.Spec, field.NewPath("spec"), minReplicasLowerBound)...)

	// owner: @dxist
	// alpha: v1.16
	//
	// Enables support of HPA scaling to zero pods when an object or custom metric is configured.
	HPAScaleToZero featuregate.Feature = "HPAScaleToZero"

	// owner: @deepakkinni @xing-yang
	// kep: https://kep.k8s.io/2680
	// alpha: v1.23
	//
	// Honor Persistent Volume Reclaim Policy when it is "Delete" irrespective of PV-PVC

  // minReplicas is the lower limit for the number of replicas to which the autoscaler
  // can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
  // alpha feature gate HPAScaleToZero is enabled and at least one Object or External
  // metric is configured.  Scaling is active as long as at least one metric value is
  // available.
  // +optional
  optional int32 minReplicas = 2;

  // minReplicas is the lower limit for the number of replicas to which the autoscaler
  // can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
  // alpha feature gate HPAScaleToZero is enabled and at least one Object or External
  // metric is configured.  Scaling is active as long as at least one metric value is
  // available.
  // +optional
  optional int32 minReplicas = 2;

  // minReplicas is the lower limit for the number of replicas to which the autoscaler
  // can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
  // alpha feature gate HPAScaleToZero is enabled and at least one Object or External
  // metric is configured.  Scaling is active as long as at least one metric value is
  // available.
  // +optional
  optional int32 minReplicas = 2;

  // minReplicas is the lower limit for the number of replicas to which the autoscaler
  // can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
  // alpha feature gate HPAScaleToZero is enabled and at least one Object or External
  // metric is configured.  Scaling is active as long as at least one metric value is
  // available.
  // +optional
  optional int32 minReplicas = 2;

  // minReplicas is the lower limit for the number of replicas to which the autoscaler
  // can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
  // alpha feature gate HPAScaleToZero is enabled and at least one Object or External
  // metric is configured.  Scaling is active as long as at least one metric value is
  // available.
  // +optional
  optional int32 minReplicas = 2;

  // minReplicas is the lower limit for the number of replicas to which the autoscaler
  // can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
  // alpha feature gate HPAScaleToZero is enabled and at least one Object or External
  // metric is configured.  Scaling is active as long as at least one metric value is
  // available.
  // +optional
  optional int32 minReplicas = 2;

  // minReplicas is the lower limit for the number of replicas to which the autoscaler
  // can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
  // alpha feature gate HPAScaleToZero is enabled and at least one Object or External
  // metric is configured.  Scaling is active as long as at least one metric value is
  // available.
  // +optional
  optional int32 minReplicas = 2;

  // minReplicas is the lower limit for the number of replicas to which the autoscaler
  // can scale down.  It defaults to 1 pod.  minReplicas is allowed to be 0 if the
  // alpha feature gate HPAScaleToZero is enabled and at least one Object or External
  // metric is configured.  Scaling is active as long as at least one metric value is
  // available.
  // +optional
  optional int32 minReplicas = 2;