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Merge pull request #1625 from concourse/pr/optional-prometheus-logger-sync

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Optional Prometheus Registry
This commit is contained in:
Márk Sági-Kazár 2020-01-21 18:02:20 +01:00 committed by GitHub
commit 8894eed8d3
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1 changed files with 20 additions and 12 deletions
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32
server/server.go
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@ -236,23 +236,31 @@ func newServer(ctx context.Context, c Config, rotationStrategy rotationStrategy)
} }
} }
requestCounter := prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "http_requests_total",
Help: "Count of all HTTP requests.",
}, []string{"handler", "code", "method"})
err = c.PrometheusRegistry.Register(requestCounter)
if err != nil {
return nil, fmt.Errorf("server: Failed to register Prometheus HTTP metrics: %v", err)
}
instrumentHandlerCounter := func(handlerName string, handler http.Handler) http.HandlerFunc { instrumentHandlerCounter := func(handlerName string, handler http.Handler) http.HandlerFunc {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
m := httpsnoop.CaptureMetrics(handler, w, r) handler.ServeHTTP(w, r)
requestCounter.With(prometheus.Labels{"handler": handlerName, "code": strconv.Itoa(m.Code), "method": r.Method}).Inc()
}) })
} }
if c.PrometheusRegistry != nil {
requestCounter := prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "http_requests_total",
Help: "Count of all HTTP requests.",
}, []string{"handler", "code", "method"})
err = c.PrometheusRegistry.Register(requestCounter)
if err != nil {
return nil, fmt.Errorf("server: Failed to register Prometheus HTTP metrics: %v", err)
}
instrumentHandlerCounter = func(handlerName string, handler http.Handler) http.HandlerFunc {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
m := httpsnoop.CaptureMetrics(handler, w, r)
requestCounter.With(prometheus.Labels{"handler": handlerName, "code": strconv.Itoa(m.Code), "method": r.Method}).Inc()
})
}
}
r := mux.NewRouter() r := mux.NewRouter()
handle := func(p string, h http.Handler) { handle := func(p string, h http.Handler) {
r.Handle(path.Join(issuerURL.Path, p), instrumentHandlerCounter(p, h)) r.Handle(path.Join(issuerURL.Path, p), instrumentHandlerCounter(p, h))