mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-10-21 06:39:53 +00:00
9eaa55506f
This commit updates controller-runtime to v0.9.2 and makes changes in persistentvolume.go to add context to various functions and function calls made here instead of context.TODO(). Signed-off-by: Rakshith R <rar@redhat.com>
215 lines
7.2 KiB
Go
215 lines
7.2 KiB
Go
/*
|
|
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 (
|
|
"context"
|
|
"net/url"
|
|
"time"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
reflectormetrics "k8s.io/client-go/tools/cache"
|
|
clientmetrics "k8s.io/client-go/tools/metrics"
|
|
)
|
|
|
|
// this file contains setup logic to initialize the myriad of places
|
|
// that client-go registers metrics. We copy the names and formats
|
|
// from Kubernetes so that we match the core controllers.
|
|
|
|
// Metrics subsystem and all of the keys used by the rest client.
|
|
const (
|
|
RestClientSubsystem = "rest_client"
|
|
LatencyKey = "request_latency_seconds"
|
|
ResultKey = "requests_total"
|
|
)
|
|
|
|
// Metrics subsystem and all keys used by the reflectors.
|
|
const (
|
|
ReflectorSubsystem = "reflector"
|
|
ListsTotalKey = "lists_total"
|
|
ListsDurationKey = "list_duration_seconds"
|
|
ItemsPerListKey = "items_per_list"
|
|
WatchesTotalKey = "watches_total"
|
|
ShortWatchesTotalKey = "short_watches_total"
|
|
WatchDurationKey = "watch_duration_seconds"
|
|
ItemsPerWatchKey = "items_per_watch"
|
|
LastResourceVersionKey = "last_resource_version"
|
|
)
|
|
|
|
var (
|
|
// client metrics.
|
|
requestLatency = prometheus.NewHistogramVec(prometheus.HistogramOpts{
|
|
Subsystem: RestClientSubsystem,
|
|
Name: LatencyKey,
|
|
Help: "Request latency in seconds. Broken down by verb and URL.",
|
|
Buckets: prometheus.ExponentialBuckets(0.001, 2, 10),
|
|
}, []string{"verb", "url"})
|
|
|
|
requestResult = prometheus.NewCounterVec(prometheus.CounterOpts{
|
|
Subsystem: RestClientSubsystem,
|
|
Name: ResultKey,
|
|
Help: "Number of HTTP requests, partitioned by status code, method, and host.",
|
|
}, []string{"code", "method", "host"})
|
|
|
|
// reflector metrics.
|
|
|
|
// TODO(directxman12): update these to be histograms once the metrics overhaul KEP
|
|
// PRs start landing.
|
|
|
|
listsTotal = prometheus.NewCounterVec(prometheus.CounterOpts{
|
|
Subsystem: ReflectorSubsystem,
|
|
Name: ListsTotalKey,
|
|
Help: "Total number of API lists done by the reflectors",
|
|
}, []string{"name"})
|
|
|
|
listsDuration = prometheus.NewSummaryVec(prometheus.SummaryOpts{
|
|
Subsystem: ReflectorSubsystem,
|
|
Name: ListsDurationKey,
|
|
Help: "How long an API list takes to return and decode for the reflectors",
|
|
}, []string{"name"})
|
|
|
|
itemsPerList = prometheus.NewSummaryVec(prometheus.SummaryOpts{
|
|
Subsystem: ReflectorSubsystem,
|
|
Name: ItemsPerListKey,
|
|
Help: "How many items an API list returns to the reflectors",
|
|
}, []string{"name"})
|
|
|
|
watchesTotal = prometheus.NewCounterVec(prometheus.CounterOpts{
|
|
Subsystem: ReflectorSubsystem,
|
|
Name: WatchesTotalKey,
|
|
Help: "Total number of API watches done by the reflectors",
|
|
}, []string{"name"})
|
|
|
|
shortWatchesTotal = prometheus.NewCounterVec(prometheus.CounterOpts{
|
|
Subsystem: ReflectorSubsystem,
|
|
Name: ShortWatchesTotalKey,
|
|
Help: "Total number of short API watches done by the reflectors",
|
|
}, []string{"name"})
|
|
|
|
watchDuration = prometheus.NewSummaryVec(prometheus.SummaryOpts{
|
|
Subsystem: ReflectorSubsystem,
|
|
Name: WatchDurationKey,
|
|
Help: "How long an API watch takes to return and decode for the reflectors",
|
|
}, []string{"name"})
|
|
|
|
itemsPerWatch = prometheus.NewSummaryVec(prometheus.SummaryOpts{
|
|
Subsystem: ReflectorSubsystem,
|
|
Name: ItemsPerWatchKey,
|
|
Help: "How many items an API watch returns to the reflectors",
|
|
}, []string{"name"})
|
|
|
|
lastResourceVersion = prometheus.NewGaugeVec(prometheus.GaugeOpts{
|
|
Subsystem: ReflectorSubsystem,
|
|
Name: LastResourceVersionKey,
|
|
Help: "Last resource version seen for the reflectors",
|
|
}, []string{"name"})
|
|
)
|
|
|
|
func init() {
|
|
registerClientMetrics()
|
|
registerReflectorMetrics()
|
|
}
|
|
|
|
// registerClientMetrics sets up the client latency metrics from client-go.
|
|
func registerClientMetrics() {
|
|
// register the metrics with our registry
|
|
Registry.MustRegister(requestLatency)
|
|
Registry.MustRegister(requestResult)
|
|
|
|
// register the metrics with client-go
|
|
clientmetrics.Register(clientmetrics.RegisterOpts{
|
|
RequestLatency: &latencyAdapter{metric: requestLatency},
|
|
RequestResult: &resultAdapter{metric: requestResult},
|
|
})
|
|
}
|
|
|
|
// registerReflectorMetrics sets up reflector (reconcile) loop metrics.
|
|
func registerReflectorMetrics() {
|
|
Registry.MustRegister(listsTotal)
|
|
Registry.MustRegister(listsDuration)
|
|
Registry.MustRegister(itemsPerList)
|
|
Registry.MustRegister(watchesTotal)
|
|
Registry.MustRegister(shortWatchesTotal)
|
|
Registry.MustRegister(watchDuration)
|
|
Registry.MustRegister(itemsPerWatch)
|
|
Registry.MustRegister(lastResourceVersion)
|
|
|
|
reflectormetrics.SetReflectorMetricsProvider(reflectorMetricsProvider{})
|
|
}
|
|
|
|
// this section contains adapters, implementations, and other sundry organic, artisanally
|
|
// hand-crafted syntax trees required to convince client-go that it actually wants to let
|
|
// someone use its metrics.
|
|
|
|
// Client metrics adapters (method #1 for client-go metrics),
|
|
// copied (more-or-less directly) from k8s.io/kubernetes setup code
|
|
// (which isn't anywhere in an easily-importable place).
|
|
|
|
type latencyAdapter struct {
|
|
metric *prometheus.HistogramVec
|
|
}
|
|
|
|
func (l *latencyAdapter) Observe(_ context.Context, verb string, u url.URL, latency time.Duration) {
|
|
l.metric.WithLabelValues(verb, u.String()).Observe(latency.Seconds())
|
|
}
|
|
|
|
type resultAdapter struct {
|
|
metric *prometheus.CounterVec
|
|
}
|
|
|
|
func (r *resultAdapter) Increment(_ context.Context, code, method, host string) {
|
|
r.metric.WithLabelValues(code, method, host).Inc()
|
|
}
|
|
|
|
// Reflector metrics provider (method #2 for client-go metrics),
|
|
// copied (more-or-less directly) from k8s.io/kubernetes setup code
|
|
// (which isn't anywhere in an easily-importable place).
|
|
|
|
type reflectorMetricsProvider struct{}
|
|
|
|
func (reflectorMetricsProvider) NewListsMetric(name string) reflectormetrics.CounterMetric {
|
|
return listsTotal.WithLabelValues(name)
|
|
}
|
|
|
|
func (reflectorMetricsProvider) NewListDurationMetric(name string) reflectormetrics.SummaryMetric {
|
|
return listsDuration.WithLabelValues(name)
|
|
}
|
|
|
|
func (reflectorMetricsProvider) NewItemsInListMetric(name string) reflectormetrics.SummaryMetric {
|
|
return itemsPerList.WithLabelValues(name)
|
|
}
|
|
|
|
func (reflectorMetricsProvider) NewWatchesMetric(name string) reflectormetrics.CounterMetric {
|
|
return watchesTotal.WithLabelValues(name)
|
|
}
|
|
|
|
func (reflectorMetricsProvider) NewShortWatchesMetric(name string) reflectormetrics.CounterMetric {
|
|
return shortWatchesTotal.WithLabelValues(name)
|
|
}
|
|
|
|
func (reflectorMetricsProvider) NewWatchDurationMetric(name string) reflectormetrics.SummaryMetric {
|
|
return watchDuration.WithLabelValues(name)
|
|
}
|
|
|
|
func (reflectorMetricsProvider) NewItemsInWatchMetric(name string) reflectormetrics.SummaryMetric {
|
|
return itemsPerWatch.WithLabelValues(name)
|
|
}
|
|
|
|
func (reflectorMetricsProvider) NewLastResourceVersionMetric(name string) reflectormetrics.GaugeMetric {
|
|
return lastResourceVersion.WithLabelValues(name)
|
|
}
|