JeroenED/custom-prometheus-exporter
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Updated response handling and added 404 page

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The code changes include an update to the response handling in index.php. Now, it checks if the request URI is '/metrics'. If so, it continues with the previous behavior of executing a script and outputting its result. If not, it loads a new 404 error page using Twig templating engine.

A new file '404.twig' has been added under templates directory which serves as a custom 404 error page. It displays the requested URI and provides a link back to '/metrics'.
This commit is contained in:
Jeroen De Meerleer 2024-06-13 16:03:44 +02:00
parent f7f3cb9704
commit f06c804c24
Signed by: JeroenED
GPG Key ID: 28CCCB8F62BFADD6
2 changed files with 28 additions and 5 deletions
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21
index.php
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@ -1,6 +1,17 @@
<?php
header('Content-Type: text/plain; version=0.0.4');
$config = getenv('CONFIG_FILE');
$phpbin = getenv('PHP_BINARY');
$output = shell_exec('CONFIG_FILE="' . $config . '" ' . $phpbin . ' ' . $_SERVER['DOCUMENT_ROOT'] . 'script.php');
echo $output;
if($_SERVER["REQUEST_URI"] == '/metrics') {
header('Content-Type: text/plain; version=0.0.4');
$config = getenv('CONFIG_FILE');
$phpbin = getenv('PHP_BINARY');
$output = shell_exec('CONFIG_FILE="' . $config . '" ' . $phpbin . ' ' . $_SERVER['DOCUMENT_ROOT'] . 'script.php');
echo $output;
} else {
require_once('vendor/autoload.php');
http_response_code(404);
$loader = new \Twig\Loader\FilesystemLoader('templates');
$twig = new \Twig\Environment($loader, [
'cache' => 'twig_cache',
]);
echo $twig->render('404.twig', ['path' => $_SERVER["REQUEST_URI"]]);
}

12
templates/404.twig Normal file
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@ -0,0 +1,12 @@
<!DOCTYPE html>
<html lang="en">
<meta charset="UTF-8">
<title>Page Title</title>
<meta name="viewport" content="width=device-width,initial-scale=1">
<style>
</style>
<body>
<h1>404 Uri {{ path }} not found</h1>
<p><a href="/metrics">/metrics</a></p>
</body>
</html>