limit_req_zone $binary_remote_addr zone=searxng:10m rate=30r/m;

server {
    listen 443 ssl;
    http2 on;
    server_name search.labunix.xyz;
    ssl_certificate     /etc/letsencrypt/live/labunix.xyz/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/labunix.xyz/privkey.pem;

    location / {
        limit_req zone=searxng burst=50 nodelay;
        limit_req_status 429;

        proxy_pass http://10.50.0.1:8080;
        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 https;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
    }
}