62 lines
1.8 KiB
Go
62 lines
1.8 KiB
Go
package web
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import (
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"io/ioutil"
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"net/http"
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"github.com/gorilla/mux"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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log "github.com/sirupsen/logrus"
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"goauthentik.io/internal/config"
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)
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var (
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Requests = promauto.NewHistogramVec(prometheus.HistogramOpts{
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Name: "authentik_main_requests",
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Help: "The total number of configured providers",
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}, []string{"dest"})
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)
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func RunMetricsServer() {
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m := mux.NewRouter()
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l := log.WithField("logger", "authentik.router.metrics")
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m.Path("/metrics").HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
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promhttp.InstrumentMetricHandler(
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prometheus.DefaultRegisterer, promhttp.HandlerFor(prometheus.DefaultGatherer, promhttp.HandlerOpts{
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DisableCompression: true,
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}),
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).ServeHTTP(rw, r)
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// Get upstream metrics
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re, err := http.NewRequest("GET", "http://localhost:8000/metrics/", nil)
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if err != nil {
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l.WithError(err).Warning("failed to get upstream metrics")
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return
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}
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re.SetBasicAuth("monitor", config.G.SecretKey)
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res, err := http.DefaultClient.Do(re)
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if err != nil {
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l.WithError(err).Warning("failed to get upstream metrics")
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return
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}
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bm, err := ioutil.ReadAll(res.Body)
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if err != nil {
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l.WithError(err).Warning("failed to get upstream metrics")
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return
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}
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_, err = rw.Write(bm)
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if err != nil {
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l.WithError(err).Warning("failed to get upstream metrics")
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return
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}
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})
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l.WithField("listen", config.G.Web.ListenMetrics).Info("Starting Metrics server")
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err := http.ListenAndServe(config.G.Web.ListenMetrics, m)
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if err != nil {
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l.WithError(err).Warning("Failed to start metrics server")
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}
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l.WithField("listen", config.G.Web.ListenMetrics).Info("Stopping Metrics server")
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}
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