Deploying sockjs behind nginx

[juha...@gmail.com]

Apparently nginx v1.3 added support for proxying websocket connections.
Instructions here http://nginx.org/en/docs/http/websocket.html

I tried following them to deploy sockjs behind nginx, but I failed to get websockets working, only legacy transport protocols.
I did get everything to work with Haproxy, though.

Has anyone got websocket proxying to work with nginx?
Is it still a bad idea to deploy sockjs behind nginx?

[Marek Majkowski]

Hi,

On Fri, Mar 8, 2013 at 9:14 AM, <juha...@gmail.com> wrote:
> Apparently nginx v1.3 added support for proxying websocket connections.
> Instructions here http://nginx.org/en/docs/http/websocket.html
>
> I tried following them to deploy sockjs behind nginx, but I failed to get
> websockets working, only legacy transport protocols.
> I did get everything to work with Haproxy, though.
>
> Has anyone got websocket proxying to work with nginx?

I'm afraid I have no experience with sockjs and nginx.

> Is it still a bad idea to deploy sockjs behind nginx?

Not necessarily - but I just don't know if it'll work.

Marek

[juha...@gmail.com]

Managed to get it working after recompiling nginx from sources.
Probably just had too old version before.
Here's the config i used. Not really sure if the map directive is what it should be,
but both websocket and legacy transports seem to work fine with this.


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

    upstream backend {
        server 127.0.0.1:9800;
    }
    # Only retry if there was a communication error, not a timeout.
    proxy_next_upstream error;

    server {
        server_name  localhost;
        listen 80;
        root   /path/to/myapp/;

        access_log  /var/log/nginx/myapp.access.log;

        # static files
        location / {
        }

        # sockjs
        location /echo {
            proxy_pass http://backend;
            proxy_http_version 1.1;
            proxy_redirect off;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
        }
    }
}

[theyak]

Worked great for me, thanks!

Serge, might want to add this to the docs. It was far easier than haproxy and you get the nginx's benefits as well.