Go: FastCGI, Nginx

FastCGI under Go is a bit different than say a PHP fcgi. In PHP fcgi, a new process is spawned external to the web-server while in Go, a new goroutine is launched to handle the incoming connections. So when we put fcgi under nginx for Go, nginx is effectively just a pass-thorough proxy.

In your nginx conf file under /etc/nginx/sites-available, add:

location ~ /app.* {
    fastcgi_pass   127.0.0.1:8082;
     #proxy_pass  127.0.0.1:8082;
 }

The above tells nginx to redirect requests to 127.0.0.1/app. If you don't need fcgi, just use the "proxy_pass" for standard http. Also don't forget to create a symlink to the sites-available/myconfig to sites-enabled and reload nginx.

Go fcgi pseudo code:

listener, e := net.Listen("tcp", addr)
if e != nil {
    //do something
}
err = fcgi.Serve(listener, app.Handlers)