// Changing MinAvailable?  OK
	newMinAvailable := intstr.FromString("28%")
	newPdb.Spec.MinAvailable = &newMinAvailable
	Strategy.PrepareForUpdate(ctx, newPdb, pdb)
	errs = Strategy.ValidateUpdate(ctx, newPdb, pdb)
	if len(errs) != 0 {
		t.Errorf("Expected no error updating MinAvailable on poddisruptionbudgets.")
	}

	// Changing MinAvailable to MaxAvailable? OK

	// An eviction is allowed if at least "minAvailable" pods selected by
	// "selector" will still be available after the eviction, i.e. even in the
	// absence of the evicted pod.  So for example you can prevent all voluntary
	// evictions by specifying "100%".
	// +optional
	MinAvailable *intstr.IntOrString `json:"minAvailable,omitempty" protobuf:"bytes,1,opt,name=minAvailable"`

		}
	} else if pdb.Spec.MinAvailable != nil {
		if pdb.Spec.MinAvailable.Type == intstr.Int {
			desiredHealthy = pdb.Spec.MinAvailable.IntVal
			expectedCount = int32(len(pods))
		} else if pdb.Spec.MinAvailable.Type == intstr.String {
			expectedCount, unmanagedPods, err = dc.getExpectedScale(ctx, pdb, pods)
			if err != nil {
				return
			}

			var minAvailable int

			if postIndex < 0 {
				return ErrInvalidLengthGenerated
			}
			if postIndex > l {
				return io.ErrUnexpectedEOF
			}
			if m.MinAvailable == nil {
				m.MinAvailable = &intstr.IntOrString{}
			}
			if err := m.MinAvailable.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
				return err
			}
			iNdEx = postIndex
		case 2:
			if wireType != 2 {

			if postIndex < 0 {
				return ErrInvalidLengthGenerated
			}
			if postIndex > l {
				return io.ErrUnexpectedEOF
			}
			if m.MinAvailable == nil {
				m.MinAvailable = &intstr.IntOrString{}
			}
			if err := m.MinAvailable.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
				return err
			}
			iNdEx = postIndex
		case 2:
			if wireType != 2 {

message PodDisruptionBudgetSpec {
  // An eviction is allowed if at least "minAvailable" pods selected by
  // "selector" will still be available after the eviction, i.e. even in the
  // absence of the evicted pod.  So for example you can prevent all voluntary
  // evictions by specifying "100%".
  // +optional
  optional k8s.io.apimachinery.pkg.util.intstr.IntOrString minAvailable = 1;

    # ensure Istio control plane components are gradually upgraded or recovered.
    defaultPodDisruptionBudget:
      enabled: true
      # The values aren't mutable due to a current PodDisruptionBudget limitation
      # minAvailable: 1

    # A minimal set of requested resources to applied to all deployments so that
    # Horizontal Pod Autoscaler will be able to function (if set).

    # ensure Istio control plane components are gradually upgraded or recovered.
    defaultPodDisruptionBudget:
      enabled: true
      # The values aren't mutable due to a current PodDisruptionBudget limitation
      # minAvailable: 1
    # A minimal set of requested resources to applied to all deployments so that
    # Horizontal Pod Autoscaler will be able to function (if set).