Document config for connecting to Windows domain server with integrated authentication

[BlueDrink9]

I have a microsoft sql server I need to connect to using Windows authentication.
With the MS sql server plugin in VSCode, this works by specifying ServerName\DBinstance and specifying "integrated" for the authentication type.

The mssql go driver explicitly supports using windows authentication

However, I cannot tell how to configure sqls to take advantage of that. Using the above as the dataSourceName results in a call to localhost for the server, which is incorrect.

It would be great to get more clarity on how to do this please.