Start coredns on launch before we serve HTTP -- this checks if port is available

app.go

@@ -122,6 +122,11 @@ func main() {
 	http.Handle("/", http.FileServer(box))
 	registerControlHandlers()
 
+	err = startDNSServer()
+	if err != nil {
+		log.Fatal(err)
+	}
+
 	URL := fmt.Sprintf("http://%s", address)
 	log.Println("Go to " + URL)
 	log.Fatal(http.ListenAndServe(address, nil))