}
	}()

	// Data inbound to the handler
	var handlerIn chan []byte
	if inboundCap > 0 {
		m.inbound = make(chan []byte, inboundCap)
		handlerIn = make(chan []byte, 1)
		go func(inbound chan []byte) {
			wg.Wait()
			defer xioutil.SafeClose(handlerIn)
			m.handleInbound(c, inbound, handlerIn)
		}(m.inbound)
	}
	// Fill outbound block.

            "stat_prefix": "outbound|15021||ratings-istio-waypoint.ambient.svc.cluster.local",
            "cluster": "outbound|15021||ratings-istio-waypoint.ambient.svc.cluster.local"
           }
          }
         ]
        }
       ],
       "traffic_direction": "OUTBOUND",
       "bind_to_port": false
      },
      "last_updated": "2023-06-20T09:07:41.943Z"

How we handle this is [under discussion](https://docs.google.com/document/d/1uM1c3zzoehiijh1ZpZuJ1-SzuVVupenv8r5yuCaFshs/edit#heading=h.dwbqvwmg6ud3).

### Inbound

Traffic entering a pod over HBONE will be handled by the "inbound" code path, on port 15008.

}

package envoy

import (
	"bytes"
	"fmt"
	"io"
	"net/http"
	"strings"

	"istio.io/istio/pkg/log"
)

// DrainListeners drains inbound listeners of Envoy so that inflight requests
// can gracefully finish and even continue making outbound calls as needed.
func DrainListeners(adminPort uint32, inboundonly bool, skipExit bool) error {
	var drainURL string
	if inboundonly {

		},
		{
			"MySQL to TCP",
			protocol.MySQL,
			core.TrafficDirection_INBOUND,
			ListenerProtocolTCP,
		},
		{
			"Inbound unknown to Auto",
			protocol.Unsupported,
			core.TrafficDirection_INBOUND,
			ListenerProtocolAuto,
		},
		{
			"Outbound unknown to Auto",
			protocol.Unsupported,
			core.TrafficDirection_OUTBOUND,
			ListenerProtocolAuto,
		},
		{
			"UDP to UDP",

```
$ adb shell setprop log.tag.okhttp.Http2 DEBUG
$ adb shell setprop log.tag.okhttp.TaskRunner DEBUG
$ adb logcat '*:E' 'okhttp.Http2:D' 'okhttp.TaskRunner:D'
```

### HTTP/2 Frame Logging

This logs inbound (`<<`) and outbound (`>>`) frames for HTTP/2 connections.

```
[2020-01-01 00:00:00] >> CONNECTION 505249202a20485454502f322e300d0a0d0a534d0d0a0d0a
[2020-01-01 00:00:00] >> 0x00000000     6 SETTINGS

Ben Leggett <******@****.***> 1710179183 -0400

                },
                {
                    "endpoint_config": {
                        "@type": "type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment",
                        "cluster_name": "inbound|9080||",
                        "policy": {
                            "overprovisioning_factor": 140
                        }
                    }
                },
                {

	dnsProto "istio.io/istio/pkg/dns/proto"
)

// ConfigGenerator represents the interfaces to be implemented by code that generates xDS responses
type ConfigGenerator interface {
	// BuildListeners returns the list of inbound/outbound listeners for the given proxy. This is the LDS output
	// Internally, the computation will be optimized to ensure that listeners are computed only
	// once and shared across multiple invocations of this function.