godaddy's ssl certificate with GoLang

Question

I'm wondering how to use godaddy's ssl certificate with GoLang Https server.

currently I'm using the following code:

srv := &http.Server{
    Addr: httpsPortStr,
    Handler: n,
    ReadTimeout: time.Duration(config.CfgIni.ReadTimeout) * time.Second,
    WriteTimeout: time.Duration(config.CfgIni.WriteTimeout) * time.Second,
}
err := srv.ListenAndServeTLS(<CERTIFICATE_FILE>,<PRIVATE_KEY_FILE>)

I still have sf_bundle-g2-g1.crt . how do I add it to the chain of certificates ?

update

@Vonc's answer is really helpful, i'm just missing one last thing. I'm using http.Server instance in order to change ReadTimeout and WriteTimeout parameters. how can I do this with the tls ?

My previous code for this:

srv := &http.Server{
    Addr: httpsPortStr,
    Handler: n,
    ReadTimeout: time.Duration(config.CfgIni.ReadTimeout) * time.Second,
    WriteTimeout: time.Duration(config.CfgIni.WriteTimeout) * time.Second,
}
err := srv.ListenAndServeTLS(config.CfgIni.CertificateFile,config.CfgIni.PrivateKeyFile)

thanks!

Answer 1

You can see a full example here in the file-server-go section.
The chain of certificate should be loaded in a x509.NewCertPool()

cert, err := tls.LoadX509KeyPair("certs/server.pem", "certs/server.key")
if err != nil {
    log.Fatalf("server: loadkeys: %s", err)

}
certpool := x509.NewCertPool()
pem, err := ioutil.ReadFile("certs/ca.pem")
if err != nil {
    log.Fatalf("Failed to read client certificate authority: %v", err)
}
if !certpool.AppendCertsFromPEM(pem) {
    log.Fatalf("Can't parse client certificate authority")
}

config := tls.Config{
    Certificates: []tls.Certificate{cert},
    ClientAuth:   tls.RequireAndVerifyClientCert,
    ClientCAs:    certpool,
}
config.Rand = rand.Reader
service := "0.0.0.0:8000"
listener, err := tls.Listen("tcp", service, &config)

In your case, ioutil.ReadFile("sf_bundle-g2-g1.crt") .

I'm using http.Server instance in order to change ReadTimeout and WriteTimeout parameters

server := &http.Server{
    Addr:      "0.0.0.0:8000",
    TLSConfig: tlsConfig,
    ReadTimeout: time.Duration // maximum duration before timing out read of the request,
    WriteTimeout: time.Duration // maximum duration before timing out write of the response
}

(replace time.Duration with the actual time)

Then:

err := server.ListenAndServeTLS(certFile, keyFile string)
log.Fatal(err)

Note ListenAndServeTLS always returns a non-nil error.