46 lines
1.5 KiB
Go
46 lines
1.5 KiB
Go
package metrics
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import (
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"github.com/containous/traefik/types"
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"github.com/go-kit/kit/metrics/prometheus"
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stdprometheus "github.com/prometheus/client_golang/prometheus"
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)
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const (
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metricNamePrefix = "traefik_"
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reqsTotalName = metricNamePrefix + "requests_total"
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reqDurationName = metricNamePrefix + "request_duration_seconds"
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retriesTotalName = metricNamePrefix + "backend_retries_total"
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)
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// RegisterPrometheus registers all Prometheus metrics.
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// It must be called only once and failing to register the metrics will lead to a panic.
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func RegisterPrometheus(config *types.Prometheus) Registry {
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buckets := []float64{0.1, 0.3, 1.2, 5.0}
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if config.Buckets != nil {
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buckets = config.Buckets
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}
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reqCounter := prometheus.NewCounterFrom(stdprometheus.CounterOpts{
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Name: reqsTotalName,
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Help: "How many HTTP requests processed, partitioned by status code and method.",
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}, []string{"service", "code", "method"})
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reqDurationHistogram := prometheus.NewHistogramFrom(stdprometheus.HistogramOpts{
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Name: reqDurationName,
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Help: "How long it took to process the request.",
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Buckets: buckets,
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}, []string{"service", "code"})
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retryCounter := prometheus.NewCounterFrom(stdprometheus.CounterOpts{
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Name: retriesTotalName,
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Help: "How many request retries happened in total.",
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}, []string{"service"})
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return &standardRegistry{
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enabled: true,
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reqsCounter: reqCounter,
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reqDurationHistogram: reqDurationHistogram,
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retriesCounter: retryCounter,
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}
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}
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