nginx.conf

events {
    worker_connections 1024;
}

http {
    upstream app {
        server app:3000 max_fails=3 fail_timeout=30s;
        keepalive 32;
    }

    server {
        listen 80;
        server_name _;

        client_max_body_size 20M;

        location /health {
            proxy_pass http://app;
            access_log off;
            proxy_read_timeout 5s;
            proxy_connect_timeout 5s;
        }

        location / {
            proxy_pass http://app;
            proxy_http_version 1.1;
            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;
            proxy_set_header Connection "";

            # Graceful shutdown and retry on errors
            proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;
            proxy_next_upstream_tries 2;

            # Timeouts appropriate for full-text search queries
            proxy_read_timeout 60s;
            proxy_connect_timeout 5s;
            proxy_send_timeout 30s;
        }

        location /_next/static {
            proxy_pass http://app;
            add_header Cache-Control "public, immutable";
        }
    }
}