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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| 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 metrics | ||
|
|
||
| import ( | ||
| "time" | ||
|
|
||
| "github.com/prometheus/client_golang/prometheus" | ||
| "k8s.io/klog" | ||
| "sigs.k8s.io/controller-runtime/pkg/metrics" | ||
| ) | ||
|
|
||
| var ( | ||
| kubefedClustersNotReadyCount = prometheus.NewCounter( | ||
| prometheus.CounterOpts{ | ||
| Name: "kubefedclusters_not_ready_total", | ||
| Help: "Number of kubefed clusters not ready.", | ||
| }, | ||
| ) | ||
|
|
||
| kubefedClustersReadyCount = prometheus.NewCounter( | ||
| prometheus.CounterOpts{ | ||
| Name: "kubefedclusters_ready_total", | ||
| Help: "Number of ready kubefed clusters.", | ||
| }, | ||
| ) | ||
|
|
||
| kubefedClustersOfflineCount = prometheus.NewCounter( | ||
| prometheus.CounterOpts{ | ||
| Name: "kubefedclusters_offline_total", | ||
| Help: "Number of offline kubefed clusters.", | ||
| }, | ||
| ) | ||
|
|
||
| functionDuration = prometheus.NewHistogramVec( | ||
| prometheus.HistogramOpts{ | ||
| Name: "function_duration_seconds", | ||
| Help: "Time taken by various parts of Kubefed main loops.", | ||
| Buckets: []float64{0.01, 0.05, 0.1, 0.5, 1.0, 2.5, 5.0, 7.5, 10.0, 12.5, 15.0, 17.5, 20.0, 22.5, 25.0, 27.5, 30.0, 50.0, 75.0, 100.0, 1000.0}, | ||
| }, []string{"function"}, | ||
| ) | ||
|
|
||
| functionDurationSummary = prometheus.NewSummaryVec( | ||
| prometheus.SummaryOpts{ | ||
| Name: "function_duration_quantile_seconds", | ||
| Help: "Quantiles of time taken by various parts of Kubefed main loops.", | ||
| MaxAge: time.Hour, | ||
| }, []string{"function"}, | ||
| ) | ||
| ) | ||
|
|
||
| // FunctionLabel is a name of Kubefed operation for which | ||
| // we measure duration | ||
| type FunctionLabel string | ||
|
|
||
| const ( | ||
| // LogLongDurationThreshold defines the duration after which long function | ||
| // duration will be logged. | ||
| LogLongDurationThreshold = 5 * time.Second | ||
| ) | ||
|
|
||
| // Names of Kubefed operations | ||
| const ( | ||
| ClusterHealthStatus FunctionLabel = "clusterHealthStatus" | ||
| ReconcileFederatedResources FunctionLabel = "reconcile:federatedResources" | ||
| ClusterClientConnection FunctionLabel = "clusterClientConnection" | ||
| ) | ||
|
|
||
| // RegisterAll registers all metrics. | ||
| func RegisterAll() { | ||
| metrics.Registry.MustRegister(kubefedClustersNotReadyCount, kubefedClustersReadyCount, kubefedClustersOfflineCount, functionDuration, functionDurationSummary) | ||
| } | ||
|
|
||
| // UpdateDurationFromStart records the duration of the step identified by the | ||
| // label using start time | ||
| func UpdateDurationFromStart(label FunctionLabel, start time.Time) { | ||
| duration := time.Now().Sub(start) | ||
| UpdateDuration(label, duration) | ||
| } | ||
|
|
||
| // RegisterKubefedClustersReadyCount records number of Kubefed clusters that recorded a Ready state | ||
| func RegisterKubefedClustersReadyCount() { | ||
| kubefedClustersReadyCount.Inc() | ||
| } | ||
|
|
||
| // RegisterKubefedClustersOfflineCount records number of Kubefed clusters that recorded an Offline state | ||
| func RegisterKubefedClustersOfflineCount() { | ||
| kubefedClustersOfflineCount.Inc() | ||
| } | ||
|
|
||
| // RegisterKubefedClustersReadyCount records number of Kubefed clusters that recorded a NOT Ready state | ||
| func RegisterKubefedClustersNotReadyCount() { | ||
| kubefedClustersNotReadyCount.Inc() | ||
| } | ||
|
|
||
| // UpdateDuration records the duration of the step identified by the label | ||
| func UpdateDuration(label FunctionLabel, duration time.Duration) { | ||
| if duration > LogLongDurationThreshold { | ||
| klog.V(4).Infof("Function %s took %v to complete", label, duration) | ||
| } | ||
|
|
||
| functionDurationSummary.WithLabelValues(string(label)).Observe(duration.Seconds()) | ||
| functionDuration.WithLabelValues(string(label)).Observe(duration.Seconds()) | ||
| } |