func ValueOrDefault(intOrPercent *IntOrString, defaultValue IntOrString) *IntOrString {
	if intOrPercent == nil {
		return &defaultValue
	}
	return intOrPercent
}

// GetScaledValueFromIntOrPercent is meant to replace GetValueFromIntOrPercent.
// This method returns a scaled value from an IntOrString type. If the IntOrString
// is a percentage string value it's treated as a percentage and scaled appropriately

	r := ds.Spec.UpdateStrategy.RollingUpdate
	if r == nil {
		return 0, nil
	}
	// If surge is not requested, we should default to 0.
	if r.MaxSurge == nil {
		return 0, nil
	}
	return intstrutil.GetScaledValueFromIntOrPercent(r.MaxSurge, numberToSchedule, true)
}

// UnavailableCount returns 0 if unavailability is not requested, the expected
// unavailability number to allow out of numberToSchedule if requested, or an error if