// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

// Metrics implementation exported to runtime/metrics.

import (
	"internal/godebugs"
	"unsafe"
)

var (
	// metrics is a map of runtime/metrics keys to data used by the runtime
	// to sample each metric's value. metricsInit indicates it has been
	// initialized.
	//

}

// MetricsGroup - represents a group of metrics. It includes a `MetricsLoaderFn`
// function that provides a way to load the metrics from the system. The metrics
// are cached and refreshed after a given timeout.
//
// For metrics with a `bucket` dimension, a list of buckets argument is required
// to collect the metrics.
//
// It implements the prometheus.Collector interface for metric groups without a

`,
		Example: `  # Retrieve workload metrics for productpage-v1 workload
  istioctl experimental metrics productpage-v1

  # Retrieve workload metrics for various services with custom duration
  istioctl experimental metrics productpage-v1 -d 2m

  # Retrieve workload metrics for various services in the different namespaces
  istioctl experimental metrics productpage-v1.foo reviews-v1.bar ratings-v1.baz`,

// server lists all metrics that could be returned for the requested path.
//
// The (repeatable) `buckets` query parameter is a list of bucket names (or it
// could be a comma separated value) to return metrics with a bucket label.
// Bucket metrics will be returned only for the provided buckets. If no buckets
// parameter is provided, no bucket metrics are returned.

)

// Collector paths.
//
// These are paths under the top-level /minio/metrics/v3 metrics endpoint. Each
// of these paths returns a set of V3 metrics.
//
// Per-bucket metrics endpoints always start with /bucket and the bucket name is
// appended to the path. e.g. if the collector path is /bucket/api, the endpoint
// for the bucket "mybucket" would be /minio/metrics/v3/bucket/api/mybucket
const (

      priorityClassName: system-cluster-critical
      serviceAccountName: metrics-server
      nodeSelector:
        kubernetes.io/os: linux
      containers:
      - name: metrics-server
        image: registry.k8s.io/metrics-server/metrics-server:v0.7.1
        command:
        - /metrics-server
        - --metric-resolution=15s
        - --kubelet-use-node-status-port
        - --kubelet-insecure-tls

limitations under the License.
*/

package metrics

import (
	"crypto/sha256"
	"fmt"
	"hash"
	"sync"

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

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

var (
	authorizationConfigAutomaticReloadsTotal = metrics.NewCounterVec(
		&metrics.CounterOpts{
			Namespace:      namespace,

	"sync"

	celmetrics "k8s.io/apiserver/pkg/authorization/cel"
	webhookmetrics "k8s.io/apiserver/plugin/pkg/authorizer/webhook/metrics"
	compbasemetrics "k8s.io/component-base/metrics"
	"k8s.io/component-base/metrics/legacyregistry"
)

var registerMetrics sync.Once

// RegisterMetrics registers authorizer metrics.
func RegisterMetrics() {
	registerMetrics.Do(func() {
		legacyregistry.MustRegister(requestTotal)

		&metrics.CounterOpts{
			Namespace:      namespace,
			Subsystem:      subsystem,
			Name:           "match_condition_exclusions_total",
			Help:           "Total number of exclusions when an authorization webhook is skipped because match conditions exclude it.",
			StabilityLevel: metrics.ALPHA,
		},
		[]string{"type", "name"},
	)
	authorizationMatchConditionEvaluationSeconds = metrics.NewHistogramVec(

limitations under the License.
*/

package metrics

import (
	"context"
	"sync"

	"k8s.io/apiserver/pkg/authorization/cel"
	compbasemetrics "k8s.io/component-base/metrics"
	"k8s.io/component-base/metrics/legacyregistry"
)

// AuthorizerMetrics specifies a set of methods that are used to register various metrics for the webhook authorizer
type AuthorizerMetrics interface {