package metrics import ( "context" "time" "github.com/containous/traefik/v2/pkg/log" "github.com/containous/traefik/v2/pkg/safe" "github.com/containous/traefik/v2/pkg/types" kitlog "github.com/go-kit/kit/log" "github.com/go-kit/kit/metrics/dogstatsd" ) var datadogClient = dogstatsd.New("traefik.", kitlog.LoggerFunc(func(keyvals ...interface{}) error { log.WithoutContext().WithField(log.MetricsProviderName, "datadog").Info(keyvals) return nil })) var datadogTicker *time.Ticker // Metric names consistent with https://github.com/DataDog/integrations-extras/pull/64 const ( ddMetricsServiceReqsName = "service.request.total" ddMetricsServiceLatencyName = "service.request.duration" ddRetriesTotalName = "service.retries.total" ddConfigReloadsName = "config.reload.total" ddConfigReloadsFailureTagName = "failure" ddLastConfigReloadSuccessName = "config.reload.lastSuccessTimestamp" ddLastConfigReloadFailureName = "config.reload.lastFailureTimestamp" ddEntryPointReqsName = "entrypoint.request.total" ddEntryPointReqDurationName = "entrypoint.request.duration" ddEntryPointOpenConnsName = "entrypoint.connections.open" ddOpenConnsName = "service.connections.open" ddServerUpName = "service.server.up" ) // RegisterDatadog registers the metrics pusher if this didn't happen yet and creates a datadog Registry instance. func RegisterDatadog(ctx context.Context, config *types.Datadog) Registry { if datadogTicker == nil { datadogTicker = initDatadogClient(ctx, config) } registry := &standardRegistry{ configReloadsCounter: datadogClient.NewCounter(ddConfigReloadsName, 1.0), configReloadsFailureCounter: datadogClient.NewCounter(ddConfigReloadsName, 1.0).With(ddConfigReloadsFailureTagName, "true"), lastConfigReloadSuccessGauge: datadogClient.NewGauge(ddLastConfigReloadSuccessName), lastConfigReloadFailureGauge: datadogClient.NewGauge(ddLastConfigReloadFailureName), } if config.AddEntryPointsLabels { registry.epEnabled = config.AddEntryPointsLabels registry.entryPointReqsCounter = datadogClient.NewCounter(ddEntryPointReqsName, 1.0) registry.entryPointReqDurationHistogram, _ = NewHistogramWithScale(datadogClient.NewHistogram(ddEntryPointReqDurationName, 1.0), time.Second) registry.entryPointOpenConnsGauge = datadogClient.NewGauge(ddEntryPointOpenConnsName) } if config.AddServicesLabels { registry.svcEnabled = config.AddServicesLabels registry.serviceReqsCounter = datadogClient.NewCounter(ddMetricsServiceReqsName, 1.0) registry.serviceReqDurationHistogram, _ = NewHistogramWithScale(datadogClient.NewHistogram(ddMetricsServiceLatencyName, 1.0), time.Second) registry.serviceRetriesCounter = datadogClient.NewCounter(ddRetriesTotalName, 1.0) registry.serviceOpenConnsGauge = datadogClient.NewGauge(ddOpenConnsName) registry.serviceServerUpGauge = datadogClient.NewGauge(ddServerUpName) } return registry } func initDatadogClient(ctx context.Context, config *types.Datadog) *time.Ticker { address := config.Address if len(address) == 0 { address = "localhost:8125" } report := time.NewTicker(time.Duration(config.PushInterval)) safe.Go(func() { datadogClient.SendLoop(ctx, report.C, "udp", address) }) return report } // StopDatadog stops internal datadogTicker which controls the pushing of metrics to DD Agent and resets it to `nil`. func StopDatadog() { if datadogTicker != nil { datadogTicker.Stop() } datadogTicker = nil }