ismv/nginx-proxy-manager repository overview

geoip2 /geoip/GeoLite2-Country.mmdb {
    $geoip2_data_country_iso_code country iso_code;
}

map $geoip2_data_country_iso_code $allowed_country {
    default no;
    FR yes; # France
    BE yes; # Belgium
    DE yes; # Germany
    CH yes; # Switzerland
}

if ($allowed_country = no) {
    return 418;
}