httpsAddr   string

	grpcServer        *grpc.Server
	grpcAddress       string
	secureGrpcServer  *grpc.Server
	secureGrpcAddress string

	// monitoringMux listens on monitoringAddr(:15014).
	// Currently runs prometheus monitoring and debug (if enabled).
	monitoringMux *http.ServeMux
	// internalDebugMux is a mux for *internal* calls to the debug interface. That is, authentication is disabled.
	internalDebugMux *http.ServeMux

				routeName := gatewayRDSRouteName(s, resolvedPort, gatewayConfig)
				if s.Tls != nil {
					// Envoy will reject config that has multiple filter chain matches with the same matching rules.
					// To avoid this, we need to make sure we don't have duplicated hosts, which will become
					// SNI filter chain matches.

					// When there is Bind specified in the Gateway, the listener is built per IP instead of

		return s.pushDeltaXds(con, dwr, request)
	}
	return nil
}

// shouldRespondDelta determines whether this request needs to be responded back. It applies the ack/nack rules as per xds protocol
// using WatchedResource for previous state and discovery request for the current state.
func (s *DiscoveryServer) shouldRespondDelta(con *Connection, request *discovery.DeltaDiscoveryRequest) bool {

				deletedClusters = append(deletedClusters, cluster)
			}
		}
	}
	return services, deletedClusters
}

// deltaFromDestinationRules computes the delta clusters from the updated destination rules.
func (configgen *ConfigGeneratorImpl) deltaFromDestinationRules(updatedDr model.ConfigKey, proxy *model.Proxy,
	subsetClusters map[string]sets.String,
) ([]*model.Service, []string) {
	var deletedClusters []string

		}})
	}
	if len(ranges) > 1 {
		return &listener.ListenerFilterChainMatchPredicate{Rule: &listener.ListenerFilterChainMatchPredicate_OrMatch{
			OrMatch: &listener.ListenerFilterChainMatchPredicate_MatchSet{
				Rules: ranges,
			},
		}}
	}
	return &listener.ListenerFilterChainMatchPredicate{Rule: ranges[0].GetRule()}
}

func listenerPredicateIncludePorts(ports []int) *listener.ListenerFilterChainMatchPredicate {