getfilename() !~ /nginx\/.*\.log$/ {
    stop
}

counter nginx_http_requests_total by vhost, method, code
counter nginx_http_response_size_bytes_total by vhost, method, code

histogram nginx_http_response_time_seconds buckets 0.0, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1.0, 2.5, 5.0, 10.0, 25.0, 50.0 by vhost, method, code

/^/ +
/(?P<vhost>[0-9A-Za-z\.\-:]+) / +
/(?P<remote_addr>\S+) / +
/- / + 
/(?P<remote_user>\S+) / +
/\[(?P<time_local>\d{2}\/\w{3}\/\d{4}:\d{2}:\d{2}:\d{2} (\+|-)\d{4})\] / +
/"(?P<request_method>[A-Z]+) (?P<request_uri>\S+) (?P<http_version>HTTP\/[0-9\.]+)" / +
/(?P<status>\d{3}) / +
/(?P<bytes_sent>\d+) / +
/(?P<request_time>\d+\.\d+) / +
/"(?P<http_referer>\S+)" / +
/"(?P<http_user_agent>[[:print:]]+)" / +
/"(?P<http_x_forwarded_for>\S+)"/ +
/$/ {
    nginx_http_requests_total[$vhost][$request_method][$status]++

    nginx_http_response_size_bytes_total[$vhost][$request_method][$status] += $bytes_sent

    nginx_http_response_time_seconds[$vhost][$request_method][$status] = $request_time
}