if !r.DryRun() {
				err := etcdphase.RemoveStackedEtcdMemberFromCluster(r.Client(), cfg)
				if err != nil {
					klog.Warningf("[reset] Failed to remove etcd member: %v, please manually remove this etcd member using etcdctl", err)
				} else {
					if err := CleanDir(etcdDataDir); err != nil {
						klog.Warningf("[reset] Failed to delete contents of the etcd directory: %q, error: %v", etcdDataDir, err)
					} else {

				writeErrorResponse(r.Context(), w, toAPIError(r.Context(), err), r.URL)
			}
			return
		}
	}

	if globalEtcdClient != nil {
		// Borrowed from
		// https://github.com/etcd-io/etcd/blob/main/etcdctl/ctlv3/command/ep_command.go#L118
		ctx, cancel := context.WithTimeout(r.Context(), defaultContextTimeout)
		defer cancel()
		if _, err := globalEtcdClient.Get(ctx, "health"); err != nil {

	t.mux.RLock()
	defer t.mux.RUnlock()
	if t.closed {
		return fmt.Errorf("closed")
	}
	// See https://github.com/etcd-io/etcd/blob/c57f8b3af865d1b531b979889c602ba14377420e/etcdctl/ctlv3/command/ep_command.go#L118
	_, err := t.client.Get(ctx, path.Join("/", t.prefix, "health"))
	if err != nil {
		return fmt.Errorf("error getting data from etcd: %w", err)
	}
	return nil
}

					Prefix: "/registry",
					Transport: storagebackend.TransportConfig{
						ServerList:    nil,
						KeyFile:       "/var/run/kubernetes/etcd.key",
						TrustedCAFile: "/var/run/kubernetes/etcdca.crt",
						CertFile:      "/var/run/kubernetes/etcdce.crt",
					},
					CompactionInterval:    storagebackend.DefaultCompactInterval,
					CountMetricPollPeriod: time.Minute,
				},
				DefaultStorageMediaType: "application/vnd.kubernetes.protobuf",

		"--enable-priority-and-fairness=false",
		"--enable-logs-handler=false",
		"--etcd-keyfile=/var/run/kubernetes/etcd.key",
		"--etcd-certfile=/var/run/kubernetes/etcdce.crt",
		"--etcd-cafile=/var/run/kubernetes/etcdca.crt",
		"--http2-max-streams-per-connection=42",
		"--tracing-config-file=/var/run/kubernetes/tracing_config.yaml",
		"--proxy-client-cert-file=/var/run/kubernetes/proxy.crt",

		"--enable-logs-handler=false",
		"--endpoint-reconciler-type=" + string(reconcilers.LeaseEndpointReconcilerType),
		"--etcd-keyfile=/var/run/kubernetes/etcd.key",
		"--etcd-certfile=/var/run/kubernetes/etcdce.crt",
		"--etcd-cafile=/var/run/kubernetes/etcdca.crt",
		"--http2-max-streams-per-connection=42",
		"--kubelet-read-only-port=10255",
		"--kubelet-timeout=5s",
		"--kubelet-client-certificate=/var/run/kubernetes/ceserver.crt",

	)
	if r.cfg.etcdServerArgs != "" {
		extraArgs := strings.Fields(r.cfg.etcdServerArgs)
		etcdCmd.Args = append(etcdCmd.Args, extraArgs...)
	}
	fmt.Printf("Starting server %s: %+v\n", r.cfg.name, etcdCmd.Args)

	etcdCmd.Stdout = os.Stdout
	etcdCmd.Stderr = os.Stderr
	err := etcdCmd.Start()
	if err != nil {
		return err
	}
	interval := time.NewTicker(time.Millisecond * 500)
	defer interval.Stop()

		{Name: "listen-client-urls", Value: fmt.Sprintf("%s,%s", etcdutil.GetClientURLByIP(etcdLocalhostAddress), etcdutil.GetClientURL(endpoint))},
		{Name: "advertise-client-urls", Value: etcdutil.GetClientURL(endpoint)},
		{Name: "listen-peer-urls", Value: etcdutil.GetPeerURL(endpoint)},
		{Name: "initial-advertise-peer-urls", Value: etcdutil.GetPeerURL(endpoint)},
		{Name: "data-dir", Value: cfg.Etcd.Local.DataDir},

func (c fakeTLSEtcdClient) ListMembers() ([]etcdutil.Member, error) {
	return []etcdutil.Member{}, nil
}

func (c fakeTLSEtcdClient) AddMemberAsLearner(name string, peerAddrs string) ([]etcdutil.Member, error) {
	return []etcdutil.Member{}, nil
}

func (c fakeTLSEtcdClient) AddMember(name string, peerAddrs string) ([]etcdutil.Member, error) {
	return []etcdutil.Member{}, nil
}

			newTestSuiteIAM(bt, false),
			newTestSuiteIAM(bt, true),
		)
	}
	for i, testCase := range testCases {
		etcdStr := ""
		if testCase.withEtcdBackend {
			etcdStr = " (with etcd backend)"
		}
		t.Run(
			fmt.Sprintf("Test: %d, ServerType: %s%s", i+1, testCase.serverType, etcdStr),
			func(t *testing.T) {
				runAllIAMConcurrencyTests(testCase, &check{t, testCase.serverType})
			},
		)
	}
}