The map is similar to $connection_upgrade = ($http_upgrade == '') ? 'close' : 'upgrade';

Each line in a map is a match and a value with default being used if nothing matches.

/Michael Salmon
SE KI73 03 366 (OLC: 9FFVCX53+C5Q8)
+46 722 184 909

> On 4 Jul 2017, at 16:37:37, Dan Edwards <finid@vivaldi.net> wrote:
>
> Hello:
>
> Need help understanding this piece of Nginx configuration:
>
>
> ===
> map $http_upgrade $connection_upgrade {
> default upgrade;
> '' close;
> }
> ===
>
>
> What does the last line mean?
>
> TIA,
>
>
>
> --
> -Dan Edwards-
> _______________________________________________
> nginx mailing list
> nginx@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx

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