furtka/ops/nginx/furtka.org.conf

server {
    listen 80;
    listen [::]:80;
    server_name furtka.org www.furtka.org;

    root /var/www/furtka.org;
    index index.html;

    charset utf-8;

    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_comp_level 6;
    gzip_types
        text/css
        text/plain
        text/xml
        application/javascript
        application/json
        application/xml
        application/rss+xml
        application/atom+xml
        image/svg+xml
        font/woff
        font/woff2;

    location / {
        try_files $uri $uri/ $uri.html =404;
    }

    # Poll counter (ops/poll/pollsvc.py) — cookie-free, rate-limited.
    location /api/poll/ {
        # Public traffic arrives from the edge proxy via 192.168.178.164.
        # Only that hop is trusted when unwinding X-Forwarded-For, so a
        # client-supplied X-Forwarded-For cannot forge a fresh "device".
        set_real_ip_from 192.168.178.164;
        real_ip_header X-Forwarded-For;
        real_ip_recursive on;

        limit_req zone=poll burst=10 nodelay;
        proxy_pass http://127.0.0.1:8090/;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header User-Agent $http_user_agent;
        proxy_read_timeout 5s;
    }

    location = /favicon.svg {
        access_log off;
        log_not_found off;
        expires 7d;
    }

    location ~* \.(css|js|svg|woff2?|png|jpg|jpeg|webp|avif)$ {
        access_log off;
        expires 30d;
        add_header Cache-Control "public, immutable";
    }

    error_page 404 /404.html;
}