installDaemonReady, watchServerReady := nodeagent.StartHealthServer()

		if cfg.InstallConfig.AmbientEnabled {
			// Start ambient controller

			// node agent will spawn a goroutine and watch the K8S API for events,
			// as well as listen for messages from the CNI binary.
			cniEventAddr := filepath.Join(cfg.InstallConfig.CNIAgentRunDir, constants.CNIEventSocketName)

                  "uid": "$datasource"
               },
               "expr": "sum by (pod) (go_goroutines{app=\"istiod\"})",
               "legendFormat": "Goroutines ({{pod}})"
            }
         ],
         "title": "Goroutines",
         "type": "timeseries"
      },
      {
         "collapsed": false,
         "gridPos": {
            "h": 1,
            "w": 24,
            "x": 0,

	if f.testWG != nil {
		defer f.testWG.Done()
	}
	args := f.Called(ambientPods)
	return args.Error(0)
}

// Custom "wait group with timeout" for waiting for fakeServer calls in a goroutine to finish
type WaitGroup struct {
	count int32
	done  chan struct{}
}

func NewWaitGroup() *WaitGroup {
	return &WaitGroup{
		done: make(chan struct{}),
	}
}

				cancelCause(err)
				xioutil.SafeClose(results)
				return
			}
			for result := range prefixResultCh {
				results <- result
			}
		}
		xioutil.SafeClose(results)
	}()

	// Goroutine to periodically save batch-expire job's in-memory state
	saverQuitCh := make(chan struct{})
	go func() {
		saveTicker := time.NewTicker(10 * time.Second)
		defer saveTicker.Stop()
		quit := false

}

func (f *sftpDriver) Filewrite(r *sftp.Request) (w io.WriterAt, err error) {
	stopFn := globalSftpMetrics.log(r, f.AccessKey())
	defer func() {
		if err != nil {
			// If there is an error, we never started the goroutine.
			stopFn(0, err)
		}
	}()

	flags := r.Pflags()
	if !flags.Write {
		// sanity check
		return nil, os.ErrInvalid
	}

	bucket, object := path2BucketObject(r.Filepath)

// returns the slice of errors from all function calls.
func (g *NotificationGroup) Wait() []NotificationPeerErr {
	g.workers.Wait()
	return g.errs
}

// Go calls the given function in a new goroutine.
//
// The first call to return a non-nil error will be
// collected in errs slice and returned by Wait().
func (g *NotificationGroup) Go(ctx context.Context, f func() error, index int, addr xnet.Host) {

				if result != expectedFilepath {
					t.Fatalf("expected %s, got %s", expectedFilepath, result)
				}
				// Successful test case
				return
			}

			// Handle chained CNI plugin cases
			// Call with goroutine to test fsnotify watcher
			parent, cancel := context.WithCancel(context.Background())
			defer cancel()
			resultChan, errChan := make(chan string, 1), make(chan error, 1)

	if err != nil {
		rebalanceLogIf(ctx, fmt.Errorf("invalid workers value err: %v, defaulting to %d", err, len(pool.sets)))
		workerSize = len(pool.sets)
	}

	// Each decom worker needs one List() goroutine/worker
	// add that many extra workers.
	workerSize += len(pool.sets)

	wk, err := workers.New(workerSize)
	if err != nil {
		return err
	}

	for setIdx, set := range pool.sets {
		set := set

					// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
					// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
					// This changes the SP, thus we have to update the SP used by the imported function.

					// func wasmExit(code int32)

// the ack only has temporal correlation (i.e. it is the first and only ack msg after the message was sent)
// All this to say, that we want to make sure that message to ztunnel are sent from a single goroutine
// so we don't mix messages and acks.
// nolint: unparam
func (z *ztunnelServer) handleConn(ctx context.Context, conn *ZtunnelConnection) error {
	defer conn.Close()

	context.AfterFunc(ctx, func() {