serverPorts = append(serverPorts, serverPort)
				}
				log.Debugf("MergeGateways: gateway %q merged server %v", gatewayName, s.Hosts)
			}
		}
	}

	return &MergedGateway{
		MergedServers:                   mergedServers,
		MergedQUICTransportServers:      mergedQUICServers,
		ServerPorts:                     serverPorts,
		GatewayNameForServer:            gatewayNameForServer,

	proxyConfig := builder.node.Metadata.ProxyConfigOrDefault(builder.push.Mesh.DefaultConfig)
	// listener port -> host/bind
	tlsHostsByPort := map[uint32]map[string]string{}
	for _, port := range mergedGateway.ServerPorts {
		// Skip ports we cannot bind to. Note that MergeGateways will already translate Service port to
		// targetPort, which handles the common case of exposing ports like 80 and 443 but listening on
		// higher numbered ports.