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monitoring: add prometheus metrics for migration phases
Signed-off-by: João Vilaça <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| load("@io_bazel_rules_go//go:def.bzl", "go_library") | ||
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| go_library( | ||
| name = "go_default_library", | ||
| srcs = ["prometheus.go"], | ||
| importpath = "kubevirt.io/kubevirt/pkg/monitoring/migration", | ||
| visibility = ["//visibility:public"], | ||
| deps = [ | ||
| "//staging/src/kubevirt.io/api/core/v1:go_default_library", | ||
| "//staging/src/kubevirt.io/client-go/log:go_default_library", | ||
| "//vendor/github.com/prometheus/client_golang/prometheus:go_default_library", | ||
| "//vendor/k8s.io/api/core/v1:go_default_library", | ||
| ], | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| /* | ||
| * This file is part of the KubeVirt project | ||
| * | ||
| * 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. | ||
| * | ||
| * Copyright 2022 Red Hat, Inc. | ||
| * | ||
| */ | ||
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| package migration | ||
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| import ( | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| k8sv1 "k8s.io/api/core/v1" | ||
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| virtv1 "kubevirt.io/api/core/v1" | ||
| "kubevirt.io/client-go/log" | ||
| ) | ||
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| type gaugeAction bool | ||
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| const increase gaugeAction = true | ||
| const decrease gaugeAction = false | ||
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| var ( | ||
| migrationsLabels = []string{"vmi", "source", "target"} | ||
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| CurrentPendingMigrations = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Name: "kubevirt_migrate_vmi_pending_count", | ||
| Help: "Number of current pending migrations.", | ||
| }, | ||
| migrationsLabels, | ||
| ) | ||
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| CurrentSchedulingMigrations = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Name: "kubevirt_migrate_vmi_scheduling_count", | ||
| Help: "Number of current scheduling migrations.", | ||
| }, | ||
| migrationsLabels, | ||
| ) | ||
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| CurrentRunningMigrations = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Name: "kubevirt_migrate_vmi_running_count", | ||
| Help: "Number of current running migrations.", | ||
| }, | ||
| migrationsLabels, | ||
| ) | ||
|
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| MigrationsSucceededTotal = prometheus.NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Name: "kubevirt_migrate_vmi_succeeded_total", | ||
| Help: "Number of migrations successfully executed.", | ||
| }, | ||
| migrationsLabels, | ||
| ) | ||
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| MigrationsFailedTotal = prometheus.NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Name: "kubevirt_migrate_vmi_failed_total", | ||
| Help: "Number of failed migrations.", | ||
| }, | ||
| migrationsLabels, | ||
| ) | ||
| ) | ||
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| func RegisterMigrationMetrics() { | ||
| log.Log.Infof("Starting migration metrics") | ||
| prometheus.MustRegister(CurrentPendingMigrations) | ||
| prometheus.MustRegister(CurrentSchedulingMigrations) | ||
| prometheus.MustRegister(CurrentRunningMigrations) | ||
| prometheus.MustRegister(MigrationsSucceededTotal) | ||
| prometheus.MustRegister(MigrationsFailedTotal) | ||
| } | ||
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| func IncPendingMigrations(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) { | ||
| updateMigrationGauge(vmi, targetPod, CurrentPendingMigrations, increase) | ||
| } | ||
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| func IncSchedulingMigrations(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) { | ||
| updateMigrationGauge(vmi, targetPod, CurrentSchedulingMigrations, increase) | ||
| } | ||
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| func IncRunningMigrations(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) { | ||
| updateMigrationGauge(vmi, targetPod, CurrentRunningMigrations, increase) | ||
| } | ||
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| func DecPendingMigrations(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) { | ||
| updateMigrationGauge(vmi, targetPod, CurrentPendingMigrations, decrease) | ||
| } | ||
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| func DecSchedulingMigrations(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) { | ||
| updateMigrationGauge(vmi, targetPod, CurrentSchedulingMigrations, decrease) | ||
| } | ||
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| func DecRunningMigrations(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) { | ||
| updateMigrationGauge(vmi, targetPod, CurrentRunningMigrations, decrease) | ||
| } | ||
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| func IncSucceededMigrations(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) { | ||
| incMigrationCounter(vmi, targetPod, MigrationsSucceededTotal) | ||
| } | ||
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| func IncFailedMigrations(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) { | ||
| incMigrationCounter(vmi, targetPod, MigrationsFailedTotal) | ||
| } | ||
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| func getMigrationSourceAndTarget(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod) (source, target string) { | ||
| source = vmi.Status.NodeName | ||
| if targetPod != nil { | ||
| target = targetPod.Spec.NodeName | ||
| } | ||
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| if vmi.Status.MigrationState != nil { | ||
| source = vmi.Status.MigrationState.SourceNode | ||
| target = vmi.Status.MigrationState.TargetNode | ||
| } | ||
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| return | ||
| } | ||
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| func updateMigrationGauge(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod, gauge *prometheus.GaugeVec, action gaugeAction) { | ||
| source, target := getMigrationSourceAndTarget(vmi, targetPod) | ||
| labelValues := []string{vmi.Name, source, target} | ||
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| if action == increase { | ||
| gauge.WithLabelValues(labelValues...).Inc() | ||
| } else { | ||
| gauge.WithLabelValues(labelValues...).Dec() | ||
| } | ||
| } | ||
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| func incMigrationCounter(vmi *virtv1.VirtualMachineInstance, targetPod *k8sv1.Pod, counter *prometheus.CounterVec) { | ||
| source, target := getMigrationSourceAndTarget(vmi, targetPod) | ||
| labelValues := []string{vmi.Name, source, target} | ||
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| counter.WithLabelValues(labelValues...).Inc() | ||
| } |
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