کانفیگ nginx reverse proxy برای Node.js و Next.js

docker run -d --name app --restart unless-stopped -p 127.0.0.1:3000:3000 myapp:latest
curl -I http://127.0.0.1:3000

sudo nano /etc/nginx/conf.d/websocket-map.conf

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

sudo nano /etc/nginx/sites-available/app.example.com

upstream app_backend {
    server 127.0.0.1:3000;
    keepalive 32;
}

server {
    listen 80;
    listen [::]:80;
    server_name app.example.com;

    client_max_body_size 20m;

    location / {
        proxy_pass http://app_backend;
        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;

        # WebSocket و HTTP/1.1 keepalive
        proxy_set_header Upgrade    $http_upgrade;
        proxy_set_header Connection $connection_upgrade;

        proxy_connect_timeout 5s;
        proxy_read_timeout    60s;
        proxy_send_timeout    60s;
    }
}

sudo ln -s /etc/nginx/sites-available/app.example.com /etc/nginx/sites-enabled/
sudo nginx -t && sudo systemctl reload nginx
curl -I -H "Host: app.example.com" http://127.0.0.1

    location /_next/static/ {
        alias /opt/myapp/.next/static/;
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
    }

    location /dashboard/ {
        proxy_pass http://127.0.0.1:8080/;
        proxy_set_header Host $host;
    }

ss -tlnp | grep 3000
docker ps
sudo tail -n 30 /var/log/nginx/error.log