68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
package metrics
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/containous/traefik/log"
|
|
"github.com/containous/traefik/safe"
|
|
"github.com/containous/traefik/types"
|
|
kitlog "github.com/go-kit/kit/log"
|
|
"github.com/go-kit/kit/metrics/statsd"
|
|
)
|
|
|
|
var statsdClient = statsd.New("traefik.", kitlog.LoggerFunc(func(keyvals ...interface{}) error {
|
|
log.Info(keyvals)
|
|
return nil
|
|
}))
|
|
|
|
var statsdTicker *time.Ticker
|
|
|
|
const (
|
|
statsdMetricsReqsName = "requests.total"
|
|
statsdMetricsLatencyName = "request.duration"
|
|
statsdRetriesTotalName = "backend.retries.total"
|
|
)
|
|
|
|
// RegisterStatsd registers the metrics pusher if this didn't happen yet and creates a statsd Registry instance.
|
|
func RegisterStatsd(config *types.Statsd) Registry {
|
|
if statsdTicker == nil {
|
|
statsdTicker = initStatsdTicker(config)
|
|
}
|
|
|
|
return &standardRegistry{
|
|
enabled: true,
|
|
reqsCounter: statsdClient.NewCounter(statsdMetricsReqsName, 1.0),
|
|
reqDurationHistogram: statsdClient.NewTiming(statsdMetricsLatencyName, 1.0),
|
|
retriesCounter: statsdClient.NewCounter(statsdRetriesTotalName, 1.0),
|
|
}
|
|
}
|
|
|
|
// initStatsdTicker initializes metrics pusher and creates a statsdClient if not created already
|
|
func initStatsdTicker(config *types.Statsd) *time.Ticker {
|
|
address := config.Address
|
|
if len(address) == 0 {
|
|
address = "localhost:8125"
|
|
}
|
|
pushInterval, err := time.ParseDuration(config.PushInterval)
|
|
if err != nil {
|
|
log.Warnf("Unable to parse %s into pushInterval, using 10s as default value", config.PushInterval)
|
|
pushInterval = 10 * time.Second
|
|
}
|
|
|
|
report := time.NewTicker(pushInterval)
|
|
|
|
safe.Go(func() {
|
|
statsdClient.SendLoop(report.C, "udp", address)
|
|
})
|
|
|
|
return report
|
|
}
|
|
|
|
// StopStatsd stops internal statsdTicker which controls the pushing of metrics to StatsD Agent and resets it to `nil`
|
|
func StopStatsd() {
|
|
if statsdTicker != nil {
|
|
statsdTicker.Stop()
|
|
}
|
|
statsdTicker = nil
|
|
}
|