// Go code

func main() {
  http.Handle("/", http.FileServer(http.Dir("/tmp/nginx/html/")))
  if err := http.ListenAndServe(":8080", nil); err != nil {
    log.Fatal("ListenAndServe: ", err)
  }
}

// NGINX conf

worker_processes  4;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    server {
        listen       8080;
        server_name  localhost;
        location / {
            access_log off;
            root   html;
            index  index.html index.htm;
        }