custom-prometheus-exporter/index.php
Jeroen De Meerleer 069e550a3f
Refactor metric retrieval and display
Improved handling of submetrics for better data organization and presentation. Updated metric values based on retrieved data, ensuring accurate representation in the metrics template file.
2024-06-03 23:47:40 +02:00

77 lines
2.8 KiB
PHP

<?php
require 'vendor/autoload.php';
require 'config.php';
if(php_sapi_name() == 'cli' || $_SERVER["REQUEST_URI"] == '/metrics') {
header('Content-Type: text/plain; version=0.0.4');
foreach ($config as $key => &$metric) {
if (!isset($metric['submetrics'])) {
$metric['submetrics'] = [$metric];
}
foreach ($metric['submetrics'] as $key => &$submetric) {
if (isset($submetric['command'])) {
$output = null;
$retval = null;
exec($submetric['command'], $output, $retval);
$output = implode("\n", $output);
} elseif (isset($submetric['http'])) {
$client = new GuzzleHttp\Client();
$options = [];
$output = NULL;
if (isset($submetric['http']['proxy'])) {
$options['proxy'] = $submetric['http']['proxy'];
}
if (isset($submetric['http']['data']) && $submetric['http']['data'] == 'responsetime') {
$options['on_stats'] = function (GuzzleHttp\TransferStats $stats) use (&$output) {
$output = $stats->getTransferTime();
};
}
$hasresponse = NULL;
try {
$res = $client->request('GET', $submetric['http']['url'], $options);
$hasresponse = true;
} catch (GuzzleHttp\Exception\GuzzleException $e) {
if (method_exists($e, 'getResponse')) {
$res = $e->getResponse();
$hasresponse = true;
} else {
$hasresponse = false;
}
}
if (isset($submetric['http']['data']) && $submetric['http']['data'] == 'responsebody') {
$output = $res->getBody()->getContents();
} elseif (isset($submetric['http']['data']) && $submetric['http']['data'] == 'hasresponse') {
$output = (int)$hasresponse;
}
}
if (isset($submetric['jsonelem'])) {
$submetric['value'] = getArrayValue($submetric['jsonelem'], json_decode($output, true));
} else {
$submetric['value'] = $output;
}
if (is_bool($submetric['value'])) $submetric['value'] = $submetric['value'] ? 1 : 0;
}
}
$loader = new \Twig\Loader\FilesystemLoader('templates');
$twig = new \Twig\Environment($loader, [
'cache' => 'twig_cache',
]);
echo $twig->render('metrics.twig', ['config' => $config]);
}
function getArrayValue($elem, $array) {
$elem = explode('.', $elem);
$new_array = $array;
foreach ($elem as $i) {
$new_array = $new_array[$i];
}
return $new_array;
}