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metrics.go
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metrics.go
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/*
* 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 the KubeVirt Authors.
*
*/
package virt_controller
import (
"fmt"
"time"
"github.com/machadovilaca/operator-observability/pkg/operatormetrics"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/tools/cache"
virtconfig "kubevirt.io/kubevirt/pkg/virt-config"
)
var (
metrics = [][]operatormetrics.Metric{
componentMetrics,
migrationMetrics,
perfscaleMetrics,
}
vmInformer cache.SharedIndexInformer
vmiInformer cache.SharedIndexInformer
clusterInstanceTypeInformer cache.SharedIndexInformer
instanceTypeInformer cache.SharedIndexInformer
clusterPreferenceInformer cache.SharedIndexInformer
preferenceInformer cache.SharedIndexInformer
vmiMigrationInformer cache.SharedIndexInformer
clusterConfig *virtconfig.ClusterConfig
)
func SetupMetrics(
vm cache.SharedIndexInformer,
vmi cache.SharedIndexInformer,
clusterInstanceType cache.SharedIndexInformer,
instanceType cache.SharedIndexInformer,
clusterPreference cache.SharedIndexInformer,
preference cache.SharedIndexInformer,
vmiMigration cache.SharedIndexInformer,
virtClusterConfig *virtconfig.ClusterConfig,
) error {
vmInformer = vm
vmiInformer = vmi
clusterInstanceTypeInformer = clusterInstanceType
instanceTypeInformer = instanceType
clusterPreferenceInformer = clusterPreference
preferenceInformer = preference
vmiMigrationInformer = vmiMigration
clusterConfig = virtClusterConfig
if err := operatormetrics.RegisterMetrics(metrics...); err != nil {
return err
}
return operatormetrics.RegisterCollector(
migrationStatsCollector,
vmiStatsCollector,
vmStatsCollector,
)
}
func UpdateVMIMigrationInformer(informer cache.SharedIndexInformer) {
vmiMigrationInformer = informer
}
func ListMetrics() []operatormetrics.Metric {
return operatormetrics.ListMetrics()
}
func PhaseTransitionTimeBuckets() []float64 {
return []float64{
(0.5 * time.Second.Seconds()),
(1 * time.Second.Seconds()),
(2 * time.Second.Seconds()),
(5 * time.Second.Seconds()),
(10 * time.Second.Seconds()),
(20 * time.Second.Seconds()),
(30 * time.Second.Seconds()),
(40 * time.Second.Seconds()),
(50 * time.Second.Seconds()),
(60 * time.Second).Seconds(),
(90 * time.Second).Seconds(),
(2 * time.Minute).Seconds(),
(3 * time.Minute).Seconds(),
(5 * time.Minute).Seconds(),
(10 * time.Minute).Seconds(),
(20 * time.Minute).Seconds(),
(30 * time.Minute).Seconds(),
(1 * time.Hour).Seconds(),
}
}
func getTransitionTimeSeconds(oldTime *metav1.Time, newTime *metav1.Time) (float64, error) {
if newTime == nil || oldTime == nil {
// no phase transition timestamp found
return 0.0, fmt.Errorf("missing phase transition timestamp, newTime: %v, oldTime: %v", newTime, oldTime)
}
diffSeconds := newTime.Time.Sub(oldTime.Time).Seconds()
// when transitions are very fast, we can encounter time skew. Make 0 the floor
if diffSeconds < 0 {
diffSeconds = 0.0
}
return diffSeconds, nil
}