kubernetes/pkg/kubelet/dockershim/network/metrics/metrics.go
mattjmcnaughton b36f637f0d
Add dockerless tags to all files in dockershim
As the final step, add the `dockerless` tags to all files in the
dockershim. Using `-tags=dockerless` in `go build`, we can compile
kubelet without the dockershim.

Once cadvisor no longer depends on `docker/docker`, compiling with
`-tags=dockerless` should be sufficient to compile the Kubelet w/o a
dependency on `docker/docker`.
2020-05-07 17:18:50 -04:00

67 lines
1.9 KiB
Go

// +build !dockerless
/*
Copyright 2017 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 (
"sync"
"time"
"k8s.io/component-base/metrics"
"k8s.io/component-base/metrics/legacyregistry"
)
const (
// NetworkPluginOperationsKey is the key for operation count metrics.
NetworkPluginOperationsKey = "network_plugin_operations"
// NetworkPluginOperationsLatencyKey is the key for the operation latency metrics.
NetworkPluginOperationsLatencyKey = "network_plugin_operations_duration_seconds"
// Keep the "kubelet" subsystem for backward compatibility.
kubeletSubsystem = "kubelet"
)
var (
// NetworkPluginOperationsLatency collects operation latency numbers by operation
// type.
NetworkPluginOperationsLatency = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: kubeletSubsystem,
Name: NetworkPluginOperationsLatencyKey,
Help: "Latency in seconds of network plugin operations. Broken down by operation type.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
[]string{"operation_type"},
)
)
var registerMetrics sync.Once
// Register all metrics.
func Register() {
registerMetrics.Do(func() {
legacyregistry.MustRegister(NetworkPluginOperationsLatency)
})
}
// SinceInSeconds gets the time since the specified start in seconds.
func SinceInSeconds(start time.Time) float64 {
return time.Since(start).Seconds()
}