metricsGroupOpts: opts,
	}
	mg.RegisterRead(func(_ context.Context) (metrics []MetricV2) {
		metrics = make([]MetricV2, 0, 16)
		nodesUp, nodesDown := globalNotificationSys.GetPeerOnlineCount()
		metrics = append(metrics, MetricV2{
			Description: getNodeOnlineTotalMD(),
			Value:       float64(nodesUp),
		})
		metrics = append(metrics, MetricV2{
			Description: getNodeOfflineTotalMD(),

					},
					MinReplicas: &minReplicasVal,
					MaxReplicas: 10,
					Metrics: []autoscaling.MetricSpec{
						{
							Type: autoscaling.ExternalMetricSourceType,
							External: &autoscaling.ExternalMetricSource{
								Metric: autoscaling.MetricIdentifier{
									Name:     "some-external-metric",
									Selector: metricLabelSelector,
								},
								Target: autoscaling.MetricTarget{

		t.Run(tt.name, func(t *testing.T) {
			// clear the metrics for testing
			metrics.Register()
			for _, metric := range []interface{ Reset() }{
				metrics.DesiredPodCount,
				metrics.ActivePodCount,
				metrics.RestartedPodTotal,
				metrics.OrphanedRuntimePodTotal,
				metrics.WorkingPodCount,
			} {
				metric.Reset()
			}
			metrics.MirrorPodCount.Set(0)

			wantExtensionPoint: "Permit",
			wantStatus:         framework.Wait,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			metrics.Register()
			metrics.FrameworkExtensionPointDuration.Reset()
			metrics.PluginExecutionDuration.Reset()

			plugin := &TestPlugin{name: testPlugin, inj: tt.inject}
			r := make(Registry)
			r.Register(testPlugin,

	}

	// Reply with storage information (across nodes in a
	// distributed setup) as json.
	writeSuccessResponseJSON(w, jsonBytes)
}

// MetricsHandler - GET /minio/admin/v3/metrics
// ----------
// Get realtime server metrics
func (a adminAPIHandlers) MetricsHandler(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.ServerInfoAdminAction)

	// metrics and to determine restarts.
	activePods := kl.filterOutInactivePods(allPods)
	allRegularPods, allStaticPods := splitPodsByStatic(allPods)
	activeRegularPods, activeStaticPods := splitPodsByStatic(activePods)
	metrics.DesiredPodCount.WithLabelValues("").Set(float64(len(allRegularPods)))
	metrics.DesiredPodCount.WithLabelValues("true").Set(float64(len(allStaticPods)))

`, // the observed value will always be 0, because we don't proceed the fake clock.
		},
	}

	resetMetrics := func() {
		metrics.ActivePods().Set(0)
		metrics.BackoffPods().Set(0)
		metrics.UnschedulablePods().Set(0)
		metrics.GatedPods().Set(0)
		metrics.PluginExecutionDuration.Reset()
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			resetMetrics()

		return
	}
	z.Rotational, err = dc.ReadBool()
	if err != nil {
		err = msgp.WrapError(err, "Rotational")
		return
	}
	err = z.Metrics.DecodeMsg(dc)
	if err != nil {
		err = msgp.WrapError(err, "Metrics")
		return
	}
	z.Error, err = dc.ReadString()
	if err != nil {
		err = msgp.WrapError(err, "Error")
		return
	}
	return
}

// Note that the modules here must not depend on modules that are not initialized here.
func (kl *Kubelet) initializeModules() error {
	// Prometheus metrics.
	metrics.Register(
		collectors.NewVolumeStatsCollector(kl),
		collectors.NewLogMetricsCollector(kl.StatsProvider.ListPodStats),
	)
	metrics.SetNodeName(kl.nodeName)
	servermetrics.Register()

	// Setup filesystem directories.
	if err := kl.setupDataDirs(); err != nil {

		sm.ReplicaSize += peer.ReplicaSize
		sm.Proxied.Add(madmin.ReplProxyMetric(peer.Proxied))
		for dID, v := range peer.Metrics {
			v2, ok := sm.Metrics[dID]
			if !ok {
				v2 = madmin.SRMetric{}
				v2.Failed.ErrCounts = make(map[string]int)
			}

			// use target endpoint metrics from node which has been up the longest
			if v2.LastOnline.After(v.LastOnline) || v2.LastOnline.IsZero() {