gistfile1.txt

package main

import (
	"crypto/tls"
	"net/http"
	"net/http/httputil"
	"net/url"
)

func main() {
	targetURL, _ := url.Parse("http://bla")
	proxy := httputil.NewSingleHostReverseProxy(targetURL)

	srv := http.Server{
		Addr: ":8080",
		TLSConfig: &tls.Config{
			ClientAuth: tls.RequireAndVerifyClientCert,
		},
		Handler: proxy,
	}

	srv.ListenAndServeTLS("certfile", "keyfile")
}