mirror of https://github.com/k3s-io/k3s
84 lines
2.6 KiB
Go
84 lines
2.6 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package restclient
|
|
|
|
import (
|
|
"net/url"
|
|
"time"
|
|
|
|
"k8s.io/client-go/tools/metrics"
|
|
k8smetrics "k8s.io/component-base/metrics"
|
|
"k8s.io/component-base/metrics/legacyregistry"
|
|
)
|
|
|
|
var (
|
|
// requestLatency is a Prometheus Summary metric type partitioned by
|
|
// "verb" and "url" labels. It is used for the rest client latency metrics.
|
|
requestLatency = k8smetrics.NewHistogramVec(
|
|
&k8smetrics.HistogramOpts{
|
|
Name: "rest_client_request_duration_seconds",
|
|
Help: "Request latency in seconds. Broken down by verb and URL.",
|
|
Buckets: k8smetrics.ExponentialBuckets(0.001, 2, 10),
|
|
},
|
|
[]string{"verb", "url"},
|
|
)
|
|
|
|
// deprecatedRequestLatency is deprecated, please use requestLatency.
|
|
deprecatedRequestLatency = k8smetrics.NewHistogramVec(
|
|
&k8smetrics.HistogramOpts{
|
|
Name: "rest_client_request_latency_seconds",
|
|
Help: "Request latency in seconds. Broken down by verb and URL.",
|
|
Buckets: k8smetrics.ExponentialBuckets(0.001, 2, 10),
|
|
DeprecatedVersion: "1.14.0",
|
|
},
|
|
[]string{"verb", "url"},
|
|
)
|
|
|
|
requestResult = k8smetrics.NewCounterVec(
|
|
&k8smetrics.CounterOpts{
|
|
Name: "rest_client_requests_total",
|
|
Help: "Number of HTTP requests, partitioned by status code, method, and host.",
|
|
},
|
|
[]string{"code", "method", "host"},
|
|
)
|
|
)
|
|
|
|
func init() {
|
|
legacyregistry.MustRegister(requestLatency)
|
|
legacyregistry.MustRegister(deprecatedRequestLatency)
|
|
legacyregistry.MustRegister(requestResult)
|
|
metrics.Register(&latencyAdapter{m: requestLatency, dm: deprecatedRequestLatency}, &resultAdapter{requestResult})
|
|
}
|
|
|
|
type latencyAdapter struct {
|
|
m *k8smetrics.HistogramVec
|
|
dm *k8smetrics.HistogramVec
|
|
}
|
|
|
|
func (l *latencyAdapter) Observe(verb string, u url.URL, latency time.Duration) {
|
|
l.m.WithLabelValues(verb, u.String()).Observe(latency.Seconds())
|
|
l.dm.WithLabelValues(verb, u.String()).Observe(latency.Seconds())
|
|
}
|
|
|
|
type resultAdapter struct {
|
|
m *k8smetrics.CounterVec
|
|
}
|
|
|
|
func (r *resultAdapter) Increment(code, method, host string) {
|
|
r.m.WithLabelValues(code, method, host).Inc()
|
|
}
|