lemmy/docker/dev/nginx.conf

worker_processes  1;
events {
    worker_connections  1024;
}
http {
  proxy_cache_path /var/cache/lemmy_frontend levels=1:2 keys_zone=lemmy_frontend_cache:10m max_size=100m                 use_temp_path=off;
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   /usr/share/nginx/html;
            index  index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /usr/share/nginx/html;
        }
    }

    server {
      listen       8535;
      server_name  localhost;



      # Enable compression for JS/CSS/HTML bundle, for improved client load times.
      # It might be nice to compress JSON, but leaving that out to protect against potential
      # compression+encryption information leak attacks like BREACH.
      gzip on;
      gzip_types text/css application/javascript;
      gzip_vary on;

      # Only connect to this site via HTTPS for the two years
      add_header Strict-Transport-Security "max-age=63072000";

      # Various content security headers
      add_header Referrer-Policy "same-origin";
      add_header X-Content-Type-Options "nosniff";
      add_header X-Frame-Options "DENY";
      add_header X-XSS-Protection "1; mode=block";

      # Upload limit for pictrs
      # client_max_body_size 50M;

      # frontend
      location / {
        # The default ports:
        # lemmy_port: 8536
        # lemmy_ui_port: 1235
        #   Use :1234 if you want to develop locally, using yarn start in the lemmy-ui folder

        set $proxpass "http://0.0.0.0:1235";
        if ($http_accept = "application/activity+json") {
          set $proxpass "http://0.0.0.0:8536";
        }
        if ($http_accept = "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"") {
          set $proxpass "http://0.0.0.0:8536";
        }
        if ($request_method = POST) {
          set $proxpass "http://0.0.0.0:8536";
        }
        proxy_pass $proxpass;

        rewrite ^(.+)/+$ $1 permanent;

        # Send actual client IP upstream
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      }

      # backend
      location ~ ^/(api|pictrs|feeds|nodeinfo|.well-known) {
        proxy_pass http://0.0.0.0:8536;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # Rate limit
        # limit_req zone=lemmy_ratelimit burst=30 nodelay;

        # Add IP forwarding headers
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      }

      # Redirect pictshare images to pictrs
      location ~ /pictshare/(.*)$ {
        return 301 /pictrs/image/$1;
      }
    }
}