k8s.io/apiserver@v0.31.1/plugin/pkg/authenticator/token/webhook/metrics.go (about)

     1  /*
     2  Copyright 2021 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package webhook
    18  
    19  import (
    20  	"context"
    21  )
    22  
    23  // AuthenticatorMetrics specifies a set of methods that are used to register various metrics
    24  type AuthenticatorMetrics struct {
    25  	// RecordRequestTotal increments the total number of requests for webhooks
    26  	RecordRequestTotal func(ctx context.Context, code string)
    27  
    28  	// RecordRequestLatency measures request latency in seconds for webhooks. Broken down by status code.
    29  	RecordRequestLatency func(ctx context.Context, code string, latency float64)
    30  }
    31  
    32  type noopMetrics struct{}
    33  
    34  func (noopMetrics) RequestTotal(context.Context, string)            {}
    35  func (noopMetrics) RequestLatency(context.Context, string, float64) {}