89 lines
3.4 KiB
Go
89 lines
3.4 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/containous/traefik/log"
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"github.com/containous/traefik/safe"
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"github.com/containous/traefik/types"
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kitlog "github.com/go-kit/kit/log"
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"github.com/go-kit/kit/metrics/dogstatsd"
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)
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var datadogClient = dogstatsd.New("traefik.", kitlog.LoggerFunc(func(keyvals ...interface{}) error {
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log.WithoutContext().WithField(log.MetricsProviderName, "datadog").Info(keyvals)
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return nil
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}))
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var datadogTicker *time.Ticker
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// Metric names consistent with https://github.com/DataDog/integrations-extras/pull/64
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const (
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ddMetricsBackendReqsName = "backend.request.total"
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ddMetricsBackendLatencyName = "backend.request.duration"
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ddRetriesTotalName = "backend.retries.total"
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ddConfigReloadsName = "config.reload.total"
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ddConfigReloadsFailureTagName = "failure"
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ddLastConfigReloadSuccessName = "config.reload.lastSuccessTimestamp"
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ddLastConfigReloadFailureName = "config.reload.lastFailureTimestamp"
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ddEntrypointReqsName = "entrypoint.request.total"
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ddEntrypointReqDurationName = "entrypoint.request.duration"
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ddEntrypointOpenConnsName = "entrypoint.connections.open"
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ddOpenConnsName = "backend.connections.open"
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ddServerUpName = "backend.server.up"
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)
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// RegisterDatadog registers the metrics pusher if this didn't happen yet and creates a datadog Registry instance.
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func RegisterDatadog(ctx context.Context, config *types.Datadog) Registry {
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if datadogTicker == nil {
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datadogTicker = initDatadogClient(ctx, config)
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}
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registry := &standardRegistry{
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enabled: true,
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configReloadsCounter: datadogClient.NewCounter(ddConfigReloadsName, 1.0),
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configReloadsFailureCounter: datadogClient.NewCounter(ddConfigReloadsName, 1.0).With(ddConfigReloadsFailureTagName, "true"),
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lastConfigReloadSuccessGauge: datadogClient.NewGauge(ddLastConfigReloadSuccessName),
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lastConfigReloadFailureGauge: datadogClient.NewGauge(ddLastConfigReloadFailureName),
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entrypointReqsCounter: datadogClient.NewCounter(ddEntrypointReqsName, 1.0),
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entrypointReqDurationHistogram: datadogClient.NewHistogram(ddEntrypointReqDurationName, 1.0),
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entrypointOpenConnsGauge: datadogClient.NewGauge(ddEntrypointOpenConnsName),
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backendReqsCounter: datadogClient.NewCounter(ddMetricsBackendReqsName, 1.0),
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backendReqDurationHistogram: datadogClient.NewHistogram(ddMetricsBackendLatencyName, 1.0),
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backendRetriesCounter: datadogClient.NewCounter(ddRetriesTotalName, 1.0),
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backendOpenConnsGauge: datadogClient.NewGauge(ddOpenConnsName),
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backendServerUpGauge: datadogClient.NewGauge(ddServerUpName),
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}
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return registry
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}
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func initDatadogClient(ctx context.Context, config *types.Datadog) *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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pushInterval, err := time.ParseDuration(config.PushInterval)
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if err != nil {
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log.FromContext(ctx).Warnf("Unable to parse %s from config.PushInterval: using 10s as the default value", config.PushInterval)
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pushInterval = 10 * time.Second
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}
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report := time.NewTicker(pushInterval)
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safe.Go(func() {
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datadogClient.SendLoop(report.C, "udp", address)
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})
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return report
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}
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// StopDatadog stops internal datadogTicker which controls the pushing of metrics to DD Agent and resets it to `nil`.
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func StopDatadog() {
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if datadogTicker != nil {
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datadogTicker.Stop()
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}
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datadogTicker = nil
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}
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