server {
    listen 80;
    server_name _;

    root /usr/share/nginx/html;
    index index.html;

    location / {
        try_files $uri $uri/ /index.html;
        add_header Cache-Control "no-store";
    }

    # Proxies CrateDB to avoid CORS — browser calls /cratedb/_sql
    location /cratedb/ {
        proxy_pass http://crate-ui:4200/;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        add_header Access-Control-Allow-Origin "*";
        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
        add_header Access-Control-Allow-Headers "Content-Type";
    }
}