feat: sentry integration

ref #3

internal/proxy/server.go

@@ -15,6 +15,8 @@ import (
 	"forge.cadoles.com/cadoles/bouncer/internal/config"
 	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
 	"forge.cadoles.com/cadoles/bouncer/internal/store"
+	"github.com/getsentry/sentry-go"
+	sentryhttp "github.com/getsentry/sentry-go/http"
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
 	"github.com/pkg/errors"
@@ -89,6 +91,16 @@ func (s *Server) run(parentCtx context.Context, addrs chan net.Addr, errs chan e
 
 	router.Use(middleware.RequestLogger(bouncerChi.NewLogFormatter()))
 
+	if s.serverConfig.Sentry.DSN != "" {
+		logger.Info(ctx, "enabling sentry http middleware")
+
+		sentryMiddleware := sentryhttp.New(sentryhttp.Options{
+			Repanic: true,
+		})
+
+		router.Use(sentryMiddleware.Handle)
+	}
+
 	if s.serverConfig.Metrics.Enabled {
 		metrics := s.serverConfig.Metrics
 
@@ -169,7 +181,10 @@ func (s *Server) createReverseProxy(ctx context.Context, target *url.URL) *httpu
 }
 
 func (s *Server) errorHandler(w http.ResponseWriter, r *http.Request, err error) {
-	logger.Error(r.Context(), "proxy error", logger.E(errors.WithStack(err)))
+	err = errors.WithStack(err)
+
+	logger.Error(r.Context(), "proxy error", logger.E(err))
+	sentry.CaptureException(err)
 
 	http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
 }