122 lines
5.1 KiB
Go
122 lines
5.1 KiB
Go
package metrics
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import (
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"context"
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"time"
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"github.com/go-kit/kit/metrics/statsd"
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"github.com/rs/zerolog/log"
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"github.com/traefik/traefik/v3/pkg/logs"
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"github.com/traefik/traefik/v3/pkg/safe"
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"github.com/traefik/traefik/v3/pkg/types"
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)
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var (
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statsdClient *statsd.Statsd
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statsdTicker *time.Ticker
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)
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const (
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statsdConfigReloadsName = "config.reload.total"
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statsdLastConfigReloadSuccessName = "config.reload.lastSuccessTimestamp"
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statsdOpenConnectionsName = "open.connections"
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statsdTLSCertsNotAfterTimestampName = "tls.certs.notAfterTimestamp"
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statsdEntryPointReqsName = "entrypoint.request.total"
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statsdEntryPointReqsTLSName = "entrypoint.request.tls.total"
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statsdEntryPointReqDurationName = "entrypoint.request.duration"
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statsdEntryPointReqsBytesName = "entrypoint.requests.bytes.total"
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statsdEntryPointRespsBytesName = "entrypoint.responses.bytes.total"
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statsdRouterReqsName = "router.request.total"
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statsdRouterReqsTLSName = "router.request.tls.total"
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statsdRouterReqsDurationName = "router.request.duration"
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statsdRouterReqsBytesName = "router.requests.bytes.total"
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statsdRouterRespsBytesName = "router.responses.bytes.total"
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statsdServiceReqsName = "service.request.total"
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statsdServiceReqsTLSName = "service.request.tls.total"
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statsdServiceReqsDurationName = "service.request.duration"
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statsdServiceRetriesTotalName = "service.retries.total"
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statsdServiceServerUpName = "service.server.up"
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statsdServiceReqsBytesName = "service.requests.bytes.total"
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statsdServiceRespsBytesName = "service.responses.bytes.total"
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)
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// RegisterStatsd registers the metrics pusher if this didn't happen yet and creates a statsd Registry instance.
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func RegisterStatsd(ctx context.Context, config *types.Statsd) Registry {
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// just to be sure there is a prefix defined
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if config.Prefix == "" {
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config.Prefix = defaultMetricsPrefix
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}
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statsdClient = statsd.New(config.Prefix+".", logs.NewGoKitWrapper(*log.Ctx(ctx)))
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if statsdTicker == nil {
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statsdTicker = initStatsdTicker(ctx, config)
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}
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registry := &standardRegistry{
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configReloadsCounter: statsdClient.NewCounter(statsdConfigReloadsName, 1.0),
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lastConfigReloadSuccessGauge: statsdClient.NewGauge(statsdLastConfigReloadSuccessName),
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tlsCertsNotAfterTimestampGauge: statsdClient.NewGauge(statsdTLSCertsNotAfterTimestampName),
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openConnectionsGauge: statsdClient.NewGauge(statsdOpenConnectionsName),
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}
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if config.AddEntryPointsLabels {
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registry.epEnabled = config.AddEntryPointsLabels
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registry.entryPointReqsCounter = NewCounterWithNoopHeaders(statsdClient.NewCounter(statsdEntryPointReqsName, 1.0))
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registry.entryPointReqsTLSCounter = statsdClient.NewCounter(statsdEntryPointReqsTLSName, 1.0)
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registry.entryPointReqDurationHistogram, _ = NewHistogramWithScale(statsdClient.NewTiming(statsdEntryPointReqDurationName, 1.0), time.Millisecond)
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registry.entryPointReqsBytesCounter = statsdClient.NewCounter(statsdEntryPointReqsBytesName, 1.0)
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registry.entryPointRespsBytesCounter = statsdClient.NewCounter(statsdEntryPointRespsBytesName, 1.0)
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}
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if config.AddRoutersLabels {
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registry.routerEnabled = config.AddRoutersLabels
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registry.routerReqsCounter = NewCounterWithNoopHeaders(statsdClient.NewCounter(statsdRouterReqsName, 1.0))
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registry.routerReqsTLSCounter = statsdClient.NewCounter(statsdRouterReqsTLSName, 1.0)
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registry.routerReqDurationHistogram, _ = NewHistogramWithScale(statsdClient.NewTiming(statsdRouterReqsDurationName, 1.0), time.Millisecond)
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registry.routerReqsBytesCounter = statsdClient.NewCounter(statsdRouterReqsBytesName, 1.0)
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registry.routerRespsBytesCounter = statsdClient.NewCounter(statsdRouterRespsBytesName, 1.0)
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}
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if config.AddServicesLabels {
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registry.svcEnabled = config.AddServicesLabels
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registry.serviceReqsCounter = NewCounterWithNoopHeaders(statsdClient.NewCounter(statsdServiceReqsName, 1.0))
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registry.serviceReqsTLSCounter = statsdClient.NewCounter(statsdServiceReqsTLSName, 1.0)
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registry.serviceReqDurationHistogram, _ = NewHistogramWithScale(statsdClient.NewTiming(statsdServiceReqsDurationName, 1.0), time.Millisecond)
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registry.serviceRetriesCounter = statsdClient.NewCounter(statsdServiceRetriesTotalName, 1.0)
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registry.serviceServerUpGauge = statsdClient.NewGauge(statsdServiceServerUpName)
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registry.serviceReqsBytesCounter = statsdClient.NewCounter(statsdServiceReqsBytesName, 1.0)
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registry.serviceRespsBytesCounter = statsdClient.NewCounter(statsdServiceRespsBytesName, 1.0)
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}
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return registry
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}
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// initStatsdTicker initializes metrics pusher and creates a statsdClient if not created already.
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func initStatsdTicker(ctx context.Context, config *types.Statsd) *time.Ticker {
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address := config.Address
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if len(address) == 0 {
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address = "localhost:8125"
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}
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report := time.NewTicker(time.Duration(config.PushInterval))
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safe.Go(func() {
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statsdClient.SendLoop(ctx, report.C, "udp", address)
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})
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return report
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}
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// StopStatsd stops internal statsdTicker which controls the pushing of metrics to StatsD Agent and resets it to `nil`.
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func StopStatsd() {
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if statsdTicker != nil {
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statsdTicker.Stop()
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}
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statsdTicker = nil
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}
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