mirror of
https://github.com/k3s-io/k3s.git
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85 lines
2.6 KiB
Go
85 lines
2.6 KiB
Go
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/*
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Copyright 2016 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 restclient
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import (
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"net/url"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"k8s.io/client-go/tools/metrics"
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k8smetrics "k8s.io/component-base/metrics"
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"k8s.io/component-base/metrics/legacyregistry"
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)
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var (
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// requestLatency is a Prometheus Summary metric type partitioned by
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// "verb" and "url" labels. It is used for the rest client latency metrics.
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requestLatency = k8smetrics.NewHistogramVec(
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&k8smetrics.HistogramOpts{
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Name: "rest_client_request_duration_seconds",
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Help: "Request latency in seconds. Broken down by verb and URL.",
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Buckets: prometheus.ExponentialBuckets(0.001, 2, 10),
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},
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[]string{"verb", "url"},
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)
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// deprecatedRequestLatency is deprecated, please use requestLatency.
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deprecatedRequestLatency = k8smetrics.NewHistogramVec(
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&k8smetrics.HistogramOpts{
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Name: "rest_client_request_latency_seconds",
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Help: "(Deprecated) Request latency in seconds. Broken down by verb and URL.",
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Buckets: prometheus.ExponentialBuckets(0.001, 2, 10),
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},
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[]string{"verb", "url"},
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)
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requestResult = k8smetrics.NewCounterVec(
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&k8smetrics.CounterOpts{
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Name: "rest_client_requests_total",
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Help: "Number of HTTP requests, partitioned by status code, method, and host.",
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},
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[]string{"code", "method", "host"},
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)
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)
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func init() {
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legacyregistry.MustRegister(requestLatency)
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legacyregistry.MustRegister(deprecatedRequestLatency)
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legacyregistry.MustRegister(requestResult)
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metrics.Register(&latencyAdapter{m: requestLatency, dm: deprecatedRequestLatency}, &resultAdapter{requestResult})
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}
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type latencyAdapter struct {
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m *k8smetrics.HistogramVec
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dm *k8smetrics.HistogramVec
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}
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func (l *latencyAdapter) Observe(verb string, u url.URL, latency time.Duration) {
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l.m.WithLabelValues(verb, u.String()).Observe(latency.Seconds())
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l.dm.WithLabelValues(verb, u.String()).Observe(latency.Seconds())
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}
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type resultAdapter struct {
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m *k8smetrics.CounterVec
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}
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func (r *resultAdapter) Increment(code, method, host string) {
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r.m.WithLabelValues(code, method, host).Inc()
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}
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