totalPVCountDesc = metrics.NewDesc(
		metrics.BuildFQName("", pvControllerSubsystem, totalPVKey),
		"Gauge measuring total number of persistent volumes",
		[]string{pluginNameLabel, volumeModeLabel}, nil,
		metrics.ALPHA, "")
	boundPVCountDesc = metrics.NewDesc(
		metrics.BuildFQName("", pvControllerSubsystem, boundPVKey),
		"Gauge measuring number of persistent volume currently bound",
		[]string{storageClassLabel}, nil,
		metrics.ALPHA, "")

 *
 * Promoting the stability level of the metric is a responsibility of the component owner, since it
 * involves explicitly acknowledging support for the metric across multiple releases, in accordance with
 * the metric stability policy.
 */

var StorageOperationMetric = metrics.NewHistogramVec(
	&metrics.HistogramOpts{

	"k8s.io/apiserver/pkg/authentication/authenticator"
	"k8s.io/component-base/metrics"
	"k8s.io/component-base/metrics/legacyregistry"
)

/*
 * By default, all the following metrics are defined as falling under
 * ALPHA stability level https://github.com/kubernetes/enhancements/blob/master/keps/sig-instrumentation/1209-metrics-stability/kubernetes-control-plane-metrics-stability.md#stability-classes)
 *

)

var registerMetrics sync.Once

// Register all metrics.
func Register() {
	registerMetrics.Do(func() {
		for _, metric := range metrics {
			legacyregistry.MustRegister(metric)
		}
	})
}

type resettable interface {
	Reset()
}

// Reset all resettable metrics to zero
func Reset() {
	for _, metric := range metrics {
		if rm, ok := metric.(resettable); ok {
			rm.Reset()
		}
	}
}

			StabilityLevel: metrics.ALPHA,
		},
	)

	NodeStartupDuration = metrics.NewGauge(
		&metrics.GaugeOpts{
			Subsystem:      KubeletSubsystem,
			Name:           NodeStartupKey,
			Help:           "Duration in seconds of node startup in total.",
			StabilityLevel: metrics.ALPHA,
		},
	)

	ImageGarbageCollectedTotal = metrics.NewCounterVec(
		&metrics.CounterOpts{

limitations under the License.
==============================================================================*/
// APIs for accessing SavedModel and checkpoint metric objects.
//
// In order to collect the data from these metrics, please add the metrics to
// the provided monitoring platform. Unless configured with a user-specified
// monitoring platform, the data is not collected in OSS.

var registerMetrics sync.Once

// Register all metrics.
func Register() {
	registerMetrics.Do(func() {
		for _, metric := range metrics {
			legacyregistry.MustRegister(metric)
		}
	})
}

// Reset all metrics.
func Reset() {
	for _, metric := range metrics {
		metric.Reset()
	}
}

// UpdateInflightRequestMetrics reports concurrency metrics classified by
// mutating vs Readonly.

package common

import (
	"istio.io/istio/pkg/monitoring"
)

type EchoMetrics struct {
	HTTPRequests monitoring.Metric
	GrpcRequests monitoring.Metric
	TCPRequests  monitoring.Metric
}

var (
	PortLabel = monitoring.CreateLabel("port")
	Metrics   = &EchoMetrics{
		HTTPRequests: monitoring.NewSum(
			"istio_echo_http_requests_total",
			"The number of http requests total",
		),

# With a startup probe and `--kubelet-insecure-tls` added.
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: metrics-server
  name: metrics-server
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  labels:
    k8s-app: metrics-server

limitations under the License.
*/

package metrics

import (
	"sync"
	"time"

	"k8s.io/component-base/metrics"
	"k8s.io/component-base/metrics/legacyregistry"
)

const (
	kubeletSubsystem = "kubelet"
)

var (
	// HTTPRequests tracks the number of the http requests received since the server started.
	HTTPRequests = metrics.NewCounterVec(
		&metrics.CounterOpts{
			Subsystem:      kubeletSubsystem,