# Retrieve Envoy server metrics in prometheus format
  istioctl experimental envoy-stats <pod-name[.namespace]> --output prom

  # Retrieve Envoy server metrics in prometheus format with custom proxy admin port
  istioctl experimental envoy-stats <pod-name[.namespace]> --output prom --proxy-admin-port 15000

  # Retrieve Envoy server metrics in prometheus format with merged application metrics

```mermaid
graph LR
    subgraph Client Node
        Client
        CZ["Ztunnel"]
    end
    subgraph Server Node
        Server
        SZ["Ztunnel"]
    end
    Client--Plain-->CZ
    CZ-."HBONE (target)".->Server
    CZ--"HBONE (actual)"-->SZ
    SZ--Plain-->Server
```

### Pooling

User connections can be multiplexed over shared HBONE connections.

			"includeOutboundPorts", isFound, valErr)
	}
	// Add 15090 to sync with non-cni injection template
	// TODO: Revert below once https://github.com/istio/istio/pull/23037 or its follow up is merged.
	redir.excludeInboundPorts = strings.TrimSpace(redir.excludeInboundPorts)
	if len(redir.excludeInboundPorts) > 0 && redir.excludeInboundPorts[len(redir.excludeInboundPorts)-1] != ',' {
		redir.excludeInboundPorts += ","
	}

          "format": "time_series",
          "hide": true,
          "intervalFactor": 2,
          "legendFormat": "heap alloc",
          "refId": "D"
        },
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "expr": "go_memstats_alloc_bytes{app=\"istiod\"}",
          "format": "time_series",
          "intervalFactor": 2,

	// 0 means that there is no limit.
	XdsViaAgentsLimit int
}

var DefaultOptions = Options{
	MessageWriter:     os.Stdout,
	XdsViaAgents:      false,
	XdsViaAgentsLimit: 0,
}

// RequestAndProcessXds merges XDS responses from 1 central or 1..N K8s cluster-based XDS servers
// Deprecated This method makes multiple responses appear to come from a single control plane;
// consider using AllRequestAndProcessXds or FirstRequestAndProcessXds

  // versions the Webhook expects. API server will try to use first version in
  // the list which it supports. If none of the versions specified in this list
  // supported by API server, validation will fail for this object.
  // If a persisted webhook configuration specifies allowed versions and does not
  // include any versions known to the API Server, calls to the webhook will fail
  // and be subject to the failure policy.

  // If not specified, this will default to the time zone of the kube-controller-manager process.
  // The set of valid time zone names and the time zone offset is loaded from the system-wide time zone
  // database by the API server during CronJob validation and the controller manager during execution.
  // If no system-wide time zone database can be found a bundled version of the database is used instead.

      return 1
      ;;
  esac

  # If metrics server configuration directory is specified then deploy in
  # the cluster just created
  if [[ -n ${METRICS_SERVER_CONFIG_DIR:-} ]]; then
    retry kubectl apply -f "${METRICS_SERVER_CONFIG_DIR}"
  fi

  # Install Metallb if not set to install explicitly
  if [[ -z "${NOMETALBINSTALL}" ]]; then

```

1. From the istio repo root directory, run `go run ./operator/cmd/operator/*.go server`

To use Remote debugging with IntelliJ, replace above step 2 with following:

1. From `./operator/cmd/operator` path run
`
dlv debug --headless --listen=:2345 --api-version=2 -- server
`.

1. In IntelliJ, create a new Go Remote debug configuration with default settings.

  // `assuredConcurrencyShares` (ACS) configures the execution
  // limit, which is a limit on the number of requests of this
  // priority level that may be exeucting at a given time.  ACS must
  // be a positive number. The server's concurrency limit (SCL) is
  // divided among the concurrency-controlled priority levels in
  // proportion to their assured concurrency shares. This produces
  // the assured concurrency value (ACV) --- the number of requests