nginx.conf

# Rate limiting zone
limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;

server {
    listen 80;
    server_name codesentinel.local;

    # Security headers
    add_header X-Frame-Options "DENY" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # Max request body size
    client_max_body_size 10m;

    location / {
        proxy_pass http://frontend:5173;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }

    location /admin {
        proxy_pass http://backend:8000;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
    }

    location /api/ {
        limit_req zone=api burst=20 nodelay;
        proxy_pass http://backend:8000;
        proxy_http_version 1.1;
        proxy_set_header Connection '';
        proxy_set_header Host $host;
        proxy_buffering off;
        proxy_cache off;
        chunked_transfer_encoding off;
    }
}