How to handle Tornado WebSockets using NGINX reverse proxy

[Ravindra Chandrakar]

Hello,

I've created a websocket using tornado which is being consumed by angular js code. 

Now I'm setting up a proxy in between using NGINX. With this my websocket stops working. Actually it is searching for a websocket in proxy server. This indicates that the redirection through proxy_pass is not working.

Can someone guide me how to handle this?

Here is the sample of my Nginx proxy configuration.

http

{

......

.....

#Few lines omitted here.

 

map $http_upgrade $connection_upgrade {

        default upgrade;

        '' close;

    }

    map $cookie_cookiename $redirectpath {

        default list";

        "1" "list1";

        "2" "list2";

    }

    server {

        listen 80;

        server_name myserver.com;

        root   /var/www/myapplication/;

        proxy_set_header    Host    $host;

        proxy_set_header    X-Real-IP    $remote_addr;

        proxy_set_header    X-Forwarded-Host       $host;

        proxy_set_header    X-Forwarded-Server    $host;

        proxy_set_header    X-Forwarded-For    $proxy_add_x_forwarded_for;

        proxy_http_version 1.1;

        proxy_set_header Upgrade $http_upgrade;

        proxy_set_header Connection $connection_upgrade;

        location / {

            rewrite ^/(.+) /$redirectpath/$1 last;

        }

        location /list/ {

                proxy_pass http://127.0.0.1:8888/;

        }

        location /1/ {

                proxy_pass http://10.0.1.1:8080/;

        }

        location /2/ {

            proxy_pass http://10.0.1.2:8080/;

        }

}

Thanks in advance.

Regards,

Ravindra Chandrakar

[HENG]

Nginx is not support WebSocket???

Take tornado server expose to your web frontend to take the request.

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[Japhy Bartlett]

I am using this:

location /chatsocket/ {
	proxy_pass http://127.0.0.1:{{ project_port }}/chatsocket/;

	proxy_http_version 1.1;
	proxy_set_header Upgrade $http_upgrade;

	proxy_set_header Connection "upgrade";
	}

inside a server {} block

[HENG]

I mean that, you would make a test like this:

python your_app.py --address=127.0.0.1 --port=8080

then

make your WebSocket request http://127.0.0.1:8080/chatsocket

This is bypass nginx, It works well in my project

Nginx seems not support WebSocket proxy_pass

[Japhy Bartlett]

OK just to clarify though-

Ngninx 100% _does_ support forwarding web sockets, and has for some time:

https://www.nginx.com/blog/websocket-nginx/