location /loki/ {
        proxy_pass http://127.0.0.1:$LOKI_PORT/;
        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;

        # CORS pour les requêtes depuis Grafana
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
        add_header Access-Control-Allow-Headers "Content-Type, Authorization";

        if ($request_method = 'OPTIONS') {
            return 204;
        }