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Make logger and prometheus optional in server config

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Signed-off-by: Josh Winters <jwinters@pivotal.io>
Co-authored-by: Mark Huang <mhuang@pivotal.io>
This commit is contained in:
Joshua Winters 2018-02-21 11:23:50 -05:00 committed by Rui Yang
parent 1cdb2b1d74
commit 76825fef8f
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))