merged = append(merged, incoming)
		}
	}
	current.chains = merged
}

// isConflictWithWellKnownPort checks conflicts between incoming protocol and existing protocol.
// Mongo and MySQL are not allowed to co-exist with other protocols in one port.
func isConflictWithWellKnownPort(incoming, existing protocol.Instance, conflict int) bool {
	if conflict == NoConflict {
		return true
	}