possible to set tls.Config.Servername with http.client.Do

[efa...@gmail.com]

Hi,

I was wondering how one can do concurrent tls requests with one single http.Client where all the servers serving the request have their certificates from the same root CA but require different tls.Config.Servername.

Would be nice to have a function like http.client.DoWithServername(req, servername)

Regards
Fahad

[Andy Balholm]

If you leave the Servername blank, http.Transport will get it from the HTTP request. 

Andy

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[efa...@gmail.com]

Hi Andy,

thank you for your suggestion.

However in my case I am not using the server name in the HTTP request but IP address and the reason for this is that I am scraping metrics using Prometheus from each instance which respond to the server name. Also the certificate doesn't contain the IP address of the server only the server name as SAN. Therefore I need a way to set the tls.Config.Servername for each HTTP request else the tls handshake fails. Or do you know another way to solve this issue?

Regards
Fahad

Den måndag 15 juli 2019 kl. 23:28:30 UTC+2 skrev Andy Balholm:

If you leave the Servername blank, http.Transport will get it from the HTTP request. 

Andy

On Jul 15, 2019, at 12:27 PM, efa...@gmail.com wrote:

Hi,

I was wondering how one can do concurrent tls requests with one single http.Client where all the servers serving the request have their certificates from the same root CA but require different tls.Config.Servername.

Would be nice to have a function like http.client.DoWithServername(req, servername)

Regards
Fahad

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