mirror of https://github.com/k3s-io/k3s
92 lines
2.4 KiB
Go
92 lines
2.4 KiB
Go
// +build !providerless
|
|
|
|
/*
|
|
Copyright 2018 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 azure
|
|
|
|
import (
|
|
"strings"
|
|
"time"
|
|
|
|
"k8s.io/component-base/metrics"
|
|
"k8s.io/component-base/metrics/legacyregistry"
|
|
)
|
|
|
|
type apiCallMetrics struct {
|
|
latency *metrics.HistogramVec
|
|
errors *metrics.CounterVec
|
|
}
|
|
|
|
var (
|
|
metricLabels = []string{
|
|
"request", // API function that is being invoked
|
|
"resource_group", // Resource group of the resource being monitored
|
|
"subscription_id", // Subscription ID of the resource being monitored
|
|
"source", // Oeration source(optional)
|
|
}
|
|
|
|
apiMetrics = registerAPIMetrics(metricLabels...)
|
|
)
|
|
|
|
type metricContext struct {
|
|
start time.Time
|
|
attributes []string
|
|
}
|
|
|
|
func newMetricContext(prefix, request, resourceGroup, subscriptionID, source string) *metricContext {
|
|
return &metricContext{
|
|
start: time.Now(),
|
|
attributes: []string{prefix + "_" + request, strings.ToLower(resourceGroup), subscriptionID, source},
|
|
}
|
|
}
|
|
|
|
func (mc *metricContext) Observe(err error) error {
|
|
apiMetrics.latency.WithLabelValues(mc.attributes...).Observe(
|
|
time.Since(mc.start).Seconds())
|
|
if err != nil {
|
|
apiMetrics.errors.WithLabelValues(mc.attributes...).Inc()
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
func registerAPIMetrics(attributes ...string) *apiCallMetrics {
|
|
metrics := &apiCallMetrics{
|
|
latency: metrics.NewHistogramVec(
|
|
&metrics.HistogramOpts{
|
|
Name: "cloudprovider_azure_api_request_duration_seconds",
|
|
Help: "Latency of an Azure API call",
|
|
StabilityLevel: metrics.ALPHA,
|
|
},
|
|
attributes,
|
|
),
|
|
errors: metrics.NewCounterVec(
|
|
&metrics.CounterOpts{
|
|
Name: "cloudprovider_azure_api_request_errors",
|
|
Help: "Number of errors for an Azure API call",
|
|
StabilityLevel: metrics.ALPHA,
|
|
},
|
|
attributes,
|
|
),
|
|
}
|
|
|
|
legacyregistry.MustRegister(metrics.latency)
|
|
legacyregistry.MustRegister(metrics.errors)
|
|
|
|
return metrics
|
|
}
|