kubernetes metrics 源码
kubernetes metrics 代码
文件路径：/staging/src/k8s.io/apiserver/pkg/endpoints/handlers/metrics/metrics.go
/*
Copyright 2022 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 metrics
import (
"context"
"k8s.io/component-base/metrics"
)
type RequestBodyVerb string
const (
Patch RequestBodyVerb = "patch"
Delete RequestBodyVerb = "delete"
Update RequestBodyVerb = "update"
Create RequestBodyVerb = "create"
)
var (
RequestBodySizes = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: "apiserver",
Name: "request_body_sizes",
Help: "Apiserver request body sizes broken out by size.",
// we use 0.05 KB as the smallest bucket with 0.1 KB increments up to the
// apiserver limit.
Buckets: metrics.LinearBuckets(50000, 100000, 31),
StabilityLevel: metrics.ALPHA,
},
[]string{"resource", "verb"},
)
)
func RecordRequestBodySize(ctx context.Context, resource string, verb RequestBodyVerb, size int) {
RequestBodySizes.WithContext(ctx).WithLabelValues(resource, string(verb)).Observe(float64(size))
}
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