register health handler with HandleFunc

cmd/kg/handlers.go

@@ -118,9 +118,6 @@ func (h *graphHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	w.Write(output)
 }
 
-type healthHandler struct {
-}
-
-func (h *healthHandler) ServeHTTP(w http.ResponseWriter, _ *http.Request) {
+func healthHandler(w http.ResponseWriter, _ *http.Request) {
 	w.WriteHeader(http.StatusOK)
 }

cmd/kg/main.go

@@ -196,7 +196,7 @@ func Main() error {
 	{
 		// Run the HTTP server.
 		mux := http.NewServeMux()
-		mux.Handle("/health", &healthHandler{})
+		mux.HandleFunc("/health", healthHandler)
 		mux.Handle("/graph", &graphHandler{m, gr, hostname, s})
 		mux.Handle("/metrics", promhttp.HandlerFor(r, promhttp.HandlerOpts{}))
 		l, err := net.Listen("tcp", *listen)