DuetWebServer Nginx proxy issues

keyz182

I'm trying to get DuetWebServer (on a Pi4) running behind an Nginx proxy.

It kind of works - I see what's going on, but it seems to be entirely read-only.

If I try to upload a file, I get "index.js:220 Error: Operation failed (Reason: )" with a 400 error returned on the PUT (with no error message/no content).

Same with POSTs when trying to execute/do anything - e.g. POST to http://<snip>/machine/code returns a 400 with no content.

My nginx config is

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

upstream dws {
    server 127.0.0.1:8080;
}

server {
    listen        80;
    server_name   <snip>;
    location / {
        proxy_pass         http://dws;
        proxy_http_version 1.1;
        proxy_set_header   Upgrade $http_upgrade;
        proxy_set_header   Connection "Upgrade";
        proxy_set_header   Host $host;
        proxy_cache_bypass $http_upgrade;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Proto $scheme;
    }
}

And my /opt/dsf/conf/http.json is

{
  "Logging": {
    "LogLevel": {
      "Default": "Information"
    }
  },
  "Kestrel": {
    "Endpoints": {
      "Http": {
        "Url": "http://*:8080"
      }
    }
  },
  "KeepAliveInterval": 30,
  "ModelRetryDelay": 5000,
  "UseStaticFiles": true,
  "DefaultWebDirectory": "/opt/dsf/sd/www",
  "MaxAge": 3600,
  "SocketPath": "/var/run/dsf/dcs.sock",
  "WebSocketBufferSize": 8192
}

I think my issue lies in the Nginx config, as I don't see any logging triggered by the request in the DWS logs (logs appear fine if I go to port 8080), but I'm not 100% sure.

Has anyone else successfully done this?