sync. refactoring for code re-use

backend/src/security-layer/container/servePage.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"github.com/gorilla/mux"
+	"log"
+	"net/http"
+	"time"
+)
+
+// Serve a directory to a port.
+func servePage(router *mux.Router, dest string, path string, port int) {
+	router.PathPrefix(path).Handler(http.FileServer(http.Dir(dest)))
+
+	srv := &http.Server{
+		Addr: "0.0.0.0: " + string(port),
+		// Good practice to set timeouts to avoid Slowloris attacks.
+		WriteTimeout: time.Second * 15,
+		ReadTimeout:  time.Second * 15,
+		IdleTimeout:  time.Second * 60,
+		Handler:      router, // Pass our instance of gorilla/mux in.
+	}
+
+	// Run our server in a goroutine so that it doesn't block.
+	go func() {
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			log.Println(err)
+		}
+	}()
+
+	log.Println("Web server is running on port " + string(port))
+}