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

var (
	latencyBuckets = metrics.ExponentialBuckets(0.001, 2, 15)
)

// converterMetricFactory holds metrics for all CRD converters
type converterMetricFactory struct {
	// A map from a converter name to it's metric. Allows the converterMetric to be created
	// again with the same metric for a specific converter (e.g. 'webhook').

	}
)

var register sync.Once

// Register all metrics.
func Register() {
	// Register the metrics.
	register.Do(func() {
		registerMetrics(metricsList...)
	})
}

// RegisterMetrics registers a list of metrics.
func registerMetrics(extraMetrics ...metrics.Registerable) {
	for _, metric := range extraMetrics {
		legacyregistry.MustRegister(metric)
	}

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

const (
	namespace = "apiserver"
	subsystem = "storage"
)

/*
 * 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)
 *

	}
	if got, want := m1.Metrics(), []string{"a"}; !_SlicesEqual(got, want) {
		panic(fmt.Sprintf("Metrics = %v, want %v", got, want))
	}

	m2 := _Metric2[int, float64]{}
	m2.Add(1, 1)
	m2.Add(2, 2)
	m2.Add(3, 3)
	m2.Add(3, 3)
	k1, k2 := m2.Metrics()

	sort.Ints(k1)
	w1 := []int{1, 2, 3}
	if !_SlicesEqual(k1, w1) {
		panic(fmt.Sprintf("_Metric2.Metrics first slice = %v, want %v", k1, w1))
	}

	//   action:          reconciling, tracking, pods_created, pods_deleted
	JobSyncDurationSeconds = metrics.NewHistogramVec(
		&metrics.HistogramOpts{
			Subsystem:      JobControllerSubsystem,
			Name:           "job_sync_duration_seconds",
			Help:           "The time it took to sync a job",
			StabilityLevel: metrics.STABLE,
			Buckets:        metrics.ExponentialBuckets(0.004, 2, 15),
		},
		[]string{"completion_mode", "result", "action"},
	)

 *
 * 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)
 *

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.

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