nginx.conf

user $NB_UID;
worker_processes 1;
pid /tmp/nginx.pid;

events {
    worker_connections 1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    server {
        listen       7860;
        server_name  localhost;

        # Serve static files from /app/public
        location / {
            root /app/public;
            try_files $uri $uri/ =404;
        }

        # Proxy JupyterLab to /jupyter/
        location /jupyter/ {
            proxy_pass http://127.0.0.1:8888;
            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-Proto $scheme;

            # WebSocket support
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
        }

        error_log /tmp/nginx_error.log;
        access_log /tmp/nginx_access.log;
    }
}