mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-31 13:50:01 +00:00
97 lines
3.1 KiB
Go
97 lines
3.1 KiB
Go
/*
|
|
Copyright 2015 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"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
const (
|
|
// DockerOperationsKey is the key for docker operation metrics.
|
|
DockerOperationsKey = "docker_operations"
|
|
// DockerOperationsLatencyKey is the key for the operation latency metrics.
|
|
DockerOperationsLatencyKey = "docker_operations_latency_microseconds"
|
|
// DockerOperationsErrorsKey is the key for the operation error metrics.
|
|
DockerOperationsErrorsKey = "docker_operations_errors"
|
|
// DockerOperationsTimeoutKey is the key for the operation timoeut metrics.
|
|
DockerOperationsTimeoutKey = "docker_operations_timeout"
|
|
|
|
// Keep the "kubelet" subsystem for backward compatibility.
|
|
kubeletSubsystem = "kubelet"
|
|
)
|
|
|
|
var (
|
|
// DockerOperationsLatency collects operation latency numbers by operation
|
|
// type.
|
|
DockerOperationsLatency = prometheus.NewSummaryVec(
|
|
prometheus.SummaryOpts{
|
|
Subsystem: kubeletSubsystem,
|
|
Name: DockerOperationsLatencyKey,
|
|
Help: "Latency in microseconds of Docker operations. Broken down by operation type.",
|
|
},
|
|
[]string{"operation_type"},
|
|
)
|
|
// DockerOperations collects operation counts by operation type.
|
|
DockerOperations = prometheus.NewCounterVec(
|
|
prometheus.CounterOpts{
|
|
Subsystem: kubeletSubsystem,
|
|
Name: DockerOperationsKey,
|
|
Help: "Cumulative number of Docker operations by operation type.",
|
|
},
|
|
[]string{"operation_type"},
|
|
)
|
|
// DockerOperationsErrors collects operation errors by operation
|
|
// type.
|
|
DockerOperationsErrors = prometheus.NewCounterVec(
|
|
prometheus.CounterOpts{
|
|
Subsystem: kubeletSubsystem,
|
|
Name: DockerOperationsErrorsKey,
|
|
Help: "Cumulative number of Docker operation errors by operation type.",
|
|
},
|
|
[]string{"operation_type"},
|
|
)
|
|
// DockerOperationsTimeout collects operation timeouts by operation type.
|
|
DockerOperationsTimeout = prometheus.NewCounterVec(
|
|
prometheus.CounterOpts{
|
|
Subsystem: kubeletSubsystem,
|
|
Name: DockerOperationsTimeoutKey,
|
|
Help: "Cumulative number of Docker operation timeout by operation type.",
|
|
},
|
|
[]string{"operation_type"},
|
|
)
|
|
)
|
|
|
|
var registerMetrics sync.Once
|
|
|
|
// Register all metrics.
|
|
func Register() {
|
|
registerMetrics.Do(func() {
|
|
prometheus.MustRegister(DockerOperationsLatency)
|
|
prometheus.MustRegister(DockerOperations)
|
|
prometheus.MustRegister(DockerOperationsErrors)
|
|
prometheus.MustRegister(DockerOperationsTimeout)
|
|
})
|
|
}
|
|
|
|
// SinceInMicroseconds gets the time since the specified start in microseconds.
|
|
func SinceInMicroseconds(start time.Time) float64 {
|
|
return float64(time.Since(start).Nanoseconds() / time.Microsecond.Nanoseconds())
|
|
}
|