Deploying django, channels and websockets with nginx and daphne

[Daniel Wilcox]

At a quick glance -- your proxy_pass statement is pointed at the nginx
listener instead of at the upstream.

Change this:
proxy_pass http://0.0.0.0:8090;

To this:
proxy_pass django;

Hope that helps,

=D

On 2/26/20, Larry Martell <larry.martell at gmail.com> wrote:
> I've posted this to the django mailing list and to stack overflow,
> with no replies so trying here.
>
> I am trying to deploy a django app that uses channels and websockets,
> with nginx and daphne.
>
> When I was using uwsgi, here was my nginx file:
>
> upstream django {
>         server unix:/run/uwsgi/devAppReporting.sock;
> }
>
> server {
>         listen 8090;
>         server_name foo.bar.com;
>         charset utf-8;
>
>         location /static {
>                 alias /var/dev-app-reporting/static;
>         }
>
>         location / {
>                uwsgi_pass django;
>                include /var/dev-app-reporting/uwsgi_params;
>                uwsgi_read_timeout 3600;
>                client_max_body_size 50m;
>         }
> }
>
> Now I changed it to this:
>
> upstream django {
>         server unix:/run/daphne/devAppReporting.sock;
> }
>
> server {
>         listen 8090;
>         server_name foo.bar.com;
>         charset utf-8;
>
>         location /static {
>                 alias /var/dev-app-reporting/static;
>         }
>
>         location / {
>             proxy_pass http://0.0.0.0:8090;
>             proxy_http_version 1.1;
>             proxy_set_header Upgrade $http_upgrade;
>             proxy_set_header Connection "upgrade";
>             proxy_redirect     off;
>             proxy_set_header   Host $host;
>             proxy_set_header   X-Real-IP $remote_addr;
>             proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
>             proxy_set_header   X-Forwarded-Host $server_name;
>         }
> }
>
> Started daphne like this:
>
> daphne -u /run/daphne/devAppReporting.sock app.dse.asgi:application
>
> I get a 502 bad gateway error and this in the log:
>
> 2020/02/24 22:17:26 [alert] 29169#29169: 768 worker_connections are not
> enough
> 2020/02/24 22:17:26 [error] 29169#29169: *131545 recv() failed (104:
> Connection reset by peer) while reading response header from upstream,
> client: 127.0.0.1, server:
> dse-portfolio-dev-assessments.md.virtualclarity.com, request: "GET /
> HTTP/1.1", upstream: "http://0.0.0.0:8090/", host: "xx.xx.xx.xx"
>
> Any ideas on what I should have in my config file for this to work?
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