At the http level:

map $http_upgrade $connection_upgrade {
default upgrade;
'' close;
}

map $connection_upgrade $proxy_upstream_port {
upgrade 81;
close 80;
}

Then at the location do:

location / {
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_pass http://localhost:$proxy_upstream_port;
}

Partly taken from http://nginx.org/en/docs/http/websocket.html.

----appa



On Thu, May 9, 2013 at 12:35 AM, Alder Network <aldernetwork@gmail.com>wrote:

> This must have been discussed before but I am new to nginx
> and this forum.
>
> I am upgrading to 1.4 to use its websocket proxy feature.
> Say I have a websocket server running at port 81, so I want
> to forward all websocket packets to port 81, and process
> the rest at port 80.
>
> Somehow the following conf doesn't work, anything missing?
>
> server {
> listen [::]:80 ipv6only=off;
>
> location / {
> regular_http_processing_directive;
>
> if ($http_upgrade = "websocket") {
> proxy_pass http://localhost:81;
> }
>
> proxy_http_version 1.1;
> proxy_set_header Upgrade websocket;
> proxy_set_header Connection upgrade;
> }
> }
>
> - Alder
>
> _______________________________________________
> nginx mailing list
> nginx@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx
>
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