I’m playing around with my own instance of Lemmy but I keep getting a “websocket connection failed” error in my console. I’m having a really hard time understanding how to set up nginx for websockets - I’m more used to Apache and not familiar with WS at all. Is there documentation hiding somewhere that will help me set up my proxy forwarding properly?

EDIT: Solved! Check out my solution here: https://lemmy.world/comment/141648. Thanks everyone!

  • ubergeek77@lemmy.ubergeek77.chat
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    1 year ago

    If you’re willing to use Caddy instead, it’s infinitely easier. Websockets is just enabled by default, no shenanigans. Here is an example Caddyfile to use in a Docker deployment (but you can change those http urls to point to localhost for a non Docker deployment):

    (caddy-common) {
        encode gzip
        header {
            -Server
            Strict-Transport-Security "max-age=31536000; include-subdomains;"
            X-XSS-Protection "1; mode=block"
            X-Frame-Options "DENY"
            X-Content-Type-Options nosniff
            Referrer-Policy  no-referrer-when-downgrade
            X-Robots-Tag "none"
        }
    }
    
    your.lemmy.url {
        import caddy-common
        reverse_proxy   http://lemmy-ui:1234
    
        @lemmy {
            path    /api/*
            path    /pictrs/*
            path    /feeds/*
            path    /nodeinfo/*
            path    /.well-known/*
        }
    
        @lemmy-hdr {
            header Accept application/*
        }
    
        handle @lemmy {
            reverse_proxy   http://lemmy:8536
        }
    
        handle @lemmy-hdr {
            reverse_proxy   http://lemmy:8536
        }
    
        @lemmy-post {
            method POST
        }
    
        handle @lemmy-post {
            reverse_proxy   http://lemmy:8536
        }
    }
    

    Caddy has some great plugins that allow you to automate https certificate renewal too, easy to add to any config.

    I know you asked about nginx and I’m just telling you “haha just switch,” but I had similar headaches with my own deployment when I tried using nginx, and I eventually just gave up and used Caddy. Saved me at least a few hours of headache.