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https://github.com/ceph/ceph-csi.git
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83 lines
2.8 KiB
Go
83 lines
2.8 KiB
Go
/*
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Copyright 2021 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package authorizerfactory
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import (
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"context"
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"sync"
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celmetrics "k8s.io/apiserver/pkg/authorization/cel"
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webhookmetrics "k8s.io/apiserver/plugin/pkg/authorizer/webhook/metrics"
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compbasemetrics "k8s.io/component-base/metrics"
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"k8s.io/component-base/metrics/legacyregistry"
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)
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var registerMetrics sync.Once
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// RegisterMetrics registers authorizer metrics.
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func RegisterMetrics() {
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registerMetrics.Do(func() {
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legacyregistry.MustRegister(requestTotal)
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legacyregistry.MustRegister(requestLatency)
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})
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}
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var (
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requestTotal = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_delegated_authz_request_total",
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Help: "Number of HTTP requests partitioned by status code.",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"code"},
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)
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requestLatency = compbasemetrics.NewHistogramVec(
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&compbasemetrics.HistogramOpts{
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Name: "apiserver_delegated_authz_request_duration_seconds",
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Help: "Request latency in seconds. Broken down by status code.",
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Buckets: []float64{0.25, 0.5, 0.7, 1, 1.5, 3, 5, 10},
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"code"},
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)
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)
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var _ = webhookmetrics.AuthorizerMetrics(delegatingAuthorizerMetrics{})
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type delegatingAuthorizerMetrics struct {
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// no-op for webhook metrics for now, delegating authorization reports original total/latency metrics
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webhookmetrics.NoopWebhookMetrics
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// no-op for matchCondition metrics for now, delegating authorization doesn't configure match conditions
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celmetrics.NoopMatcherMetrics
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}
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func NewDelegatingAuthorizerMetrics() delegatingAuthorizerMetrics {
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RegisterMetrics()
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return delegatingAuthorizerMetrics{}
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}
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// RecordRequestTotal increments the total number of requests for the delegated authorization.
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func (delegatingAuthorizerMetrics) RecordRequestTotal(ctx context.Context, code string) {
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requestTotal.WithContext(ctx).WithLabelValues(code).Add(1)
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}
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// RecordRequestLatency measures request latency in seconds for the delegated authorization. Broken down by status code.
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func (delegatingAuthorizerMetrics) RecordRequestLatency(ctx context.Context, code string, latency float64) {
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requestLatency.WithContext(ctx).WithLabelValues(code).Observe(latency)
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}
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