// Set default MaxSurge as 0 by default.
			updateStrategy.RollingUpdate.MaxSurge = ptr.To(intstr.FromInt32(0))
		}
	}
	if obj.Spec.RevisionHistoryLimit == nil {
		obj.Spec.RevisionHistoryLimit = new(int32)
		*obj.Spec.RevisionHistoryLimit = 10
	}
}

func SetDefaults_StatefulSet(obj *appsv1beta2.StatefulSet) {
	if len(obj.Spec.PodManagementPolicy) == 0 {

						},
					},
					RevisionHistoryLimit: ptr.To[int32](10),
				},
			},
		},
		{ // Labels change/defaulting test.
			original: &appsv1.DaemonSet{
				ObjectMeta: metav1.ObjectMeta{
					Labels: map[string]string{
						"bar": "foo",
					},
				},
				Spec: appsv1.DaemonSetSpec{
					Template:             defaultTemplate,
					RevisionHistoryLimit: ptr.To[int32](1),
				},
			},

					},
					RevisionHistoryLimit: ptr.To[int32](0),
				},
			},
			expected: &appsv1beta1.Deployment{
				Spec: appsv1beta1.DeploymentSpec{
					Replicas: ptr.To[int32](5),
					Strategy: appsv1beta1.DeploymentStrategy{
						Type: appsv1beta1.RecreateDeploymentStrategyType,
					},
					RevisionHistoryLimit:    ptr.To[int32](0),
					ProgressDeadlineSeconds: ptr.To[int32](600),

						},
					},
					RevisionHistoryLimit: ptr.To[int32](10),
				},
			},
		},
		{ // Labels change/defaulting test.
			original: &appsv1beta2.DaemonSet{
				ObjectMeta: metav1.ObjectMeta{
					Labels: map[string]string{
						"bar": "foo",
					},
				},
				Spec: appsv1beta2.DaemonSetSpec{
					Template:             defaultTemplate,
					RevisionHistoryLimit: ptr.To[int32](1),
				},
			},

			// Set default MaxSurge as 25% by default.
			maxSurge := intstr.FromString("25%")
			strategy.RollingUpdate.MaxSurge = &maxSurge
		}
	}
	if obj.Spec.RevisionHistoryLimit == nil {
		obj.Spec.RevisionHistoryLimit = new(int32)
		*obj.Spec.RevisionHistoryLimit = 10
	}
	if obj.Spec.ProgressDeadlineSeconds == nil {
		obj.Spec.ProgressDeadlineSeconds = new(int32)
		*obj.Spec.ProgressDeadlineSeconds = 600
	}
}

				newRSWithStatus("foo-2", 1, 1, selector),
			},
			revisionHistoryLimit: 0,
			expectedDeletions:    0,
		},
		{
			oldRSs: []*apps.ReplicaSet{
				alreadyDeleted,
			},
			revisionHistoryLimit: 0,
			expectedDeletions:    0,
		},
		{
			// with unlimited revisionHistoryLimit
			oldRSs: []*apps.ReplicaSet{
				newRSWithStatus("foo-1", 0, 0, selector),

		}
	}

	if obj.Spec.Replicas == nil {
		obj.Spec.Replicas = new(int32)
		*obj.Spec.Replicas = 1
	}
	if obj.Spec.RevisionHistoryLimit == nil {
		obj.Spec.RevisionHistoryLimit = new(int32)
		*obj.Spec.RevisionHistoryLimit = 10
	}
	if obj.Spec.UpdateStrategy.Type == appsv1beta1.RollingUpdateStatefulSetStrategyType &&
		obj.Spec.UpdateStrategy.RollingUpdate != nil {

apiVersion: apps/v1
kind: Deployment
metadata:
  namespace: {{.Release.Namespace}}
  name: istio-operator{{- if not (eq .Values.revision "") }}-{{ .Values.revision }}{{- end }}
spec:
  replicas: 1
  revisionHistoryLimit: {{ .Values.deploymentHistory }}
  selector:
    matchLabels:
      name: istio-operator
  template:
    metadata:
      labels:
        name: istio-operator
        {{- range $key, $val := .Values.podLabels }}

	// revisionHistoryLimit is the number of old ReplicaSets to retain to allow rollback.
	// This is a pointer to distinguish between explicit zero and not specified.
	// Defaults to 2.
	// +optional
	RevisionHistoryLimit *int32 `json:"revisionHistoryLimit,omitempty" protobuf:"varint,6,opt,name=revisionHistoryLimit"`

	// paused indicates that the deployment is paused.
	// +optional

	allErrs = append(allErrs, ValidateDaemonSetUpdateStrategy(&spec.UpdateStrategy, fldPath.Child("updateStrategy"))...)
	if spec.RevisionHistoryLimit != nil {
		// zero is a valid RevisionHistoryLimit
		allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(int64(*spec.RevisionHistoryLimit), fldPath.Child("revisionHistoryLimit"))...)
	}
	return allErrs
}

// ValidateRollingUpdateDaemonSet validates a given RollingUpdateDaemonSet.