33 lines
990 B
Go
33 lines
990 B
Go
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package metrics
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import (
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"net/http"
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_ "net/http/pprof"
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"contrib.go.opencensus.io/exporter/prometheus"
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logging "github.com/ipfs/go-log/v2"
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promclient "github.com/prometheus/client_golang/prometheus"
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)
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var log = logging.Logger("metrics")
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func Exporter() http.Handler {
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// Prometheus globals are exposed as interfaces, but the prometheus
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// OpenCensus exporter expects a concrete *Registry. The concrete type of
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// the globals are actually *Registry, so we downcast them, staying
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// defensive in case things change under the hood.
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registry, ok := promclient.DefaultRegisterer.(*promclient.Registry)
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if !ok {
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log.Warnf("failed to export default prometheus registry; some metrics will be unavailable; unexpected type: %T", promclient.DefaultRegisterer)
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}
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exporter, err := prometheus.NewExporter(prometheus.Options{
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Registry: registry,
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Namespace: "lotus",
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})
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if err != nil {
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log.Errorf("could not create the prometheus stats exporter: %v", err)
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}
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return exporter
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}
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