if len(topologyKey) == 0 {
		return field.Required(fldPath, "can not be empty")
	}
	return nil
}

// ValidateWhenUnsatisfiable tests that the argument is a valid UnsatisfiableConstraintAction.
func ValidateWhenUnsatisfiable(fldPath *field.Path, action core.UnsatisfiableConstraintAction) *field.Error {
	if !supportedScheduleActions.Has(action) {