statefulSet.Generation = 1

	dropStatefulSetDisabledFields(statefulSet, nil)
	pod.DropDisabledTemplateFields(&statefulSet.Spec.Template, nil)
}

// maxUnavailableInUse returns true if StatefulSet's maxUnavailable set(used)
func maxUnavailableInUse(statefulset *apps.StatefulSet) bool {
	if statefulset == nil {
		return false
	}
	if statefulset.Spec.UpdateStrategy.RollingUpdate == nil {
		return false
	}