server {
    listen 8080;
    server_name _;
    root /usr/share/nginx/html;

    location = /health {
        proxy_pass ${THT_FRONTEND_API_UPSTREAM}/health;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_cache off;
    }

    location /api/ {
        # The trailing slash replaces the matched /api/ prefix before the private hop.
        proxy_pass ${THT_FRONTEND_API_UPSTREAM}/;
        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;
        # Trusted only when AUTH_MODE=upstream and this frontend port is reachable solely
        # from the authenticated host proxy documented in deploy/.
        proxy_set_header X-Authenticated-User $http_x_authenticated_user;
        proxy_buffering off;
        proxy_cache off;
        proxy_read_timeout 3600s;
    }

    location / {
        try_files $uri $uri/ /index.html;
    }
}