Cowboy Webserver and Nginx

[asksome...@gmail.com]

Hello,

I have a CB app using cowboy and websockets and getting ready for production. Maybe this is a obvious question but i couldnt find the solution.

Is it possible to set nginx in front of a CB app working with cowboy webserver? 

I need this because i need to forward my domain to 8001 port. Domain only works with example: mydomain.com:8001

Any sources or before implementation would be great.

Thanks

Mert

[Dmitry Polyanovsky]

Hi,

first, you can change port to 80; if nothing else runnign there already
and yes, you can use nginx to proxy requests to CB. Never tried it with websockets but working excellent for regular request on few of my projects

[Kai Janson]

You can use a firewall rule for that, too. 

Sent from my iPhone

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[Jesse Gumm]

Yep, to proxy Websockets with nginx, you need to be using at least
version nginx version 1.4, and add the following rules:


proxy_http_version 1.1;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";

As a practical example, I have the following block in my nginx configs
for each of my apps that run websockets:


location / {
proxy_pass http://127.0.0.1:8020;
proxy_set_header Host $host;
# WebSocket support (nginx 1.4)
proxy_http_version 1.1;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";

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Jesse Gumm
Owner, Sigma Star Systems
414.940.4866 || sigma-star.com || @jessegumm