NationTech/harmony
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WIP: got the env variables to set in the php pod, need to make them dynamically be added rather than coded directly into lamp.rs

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This commit is contained in:
Willem 2025-05-01 16:23:58 -04:00
parent 6653cebb87
commit ac24eb6206
2 changed files with 56 additions and 41 deletions
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63
examples/lamp/php/index.php
View File

@ -1,16 +1,16 @@
<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
$host = getenv('MYSQL_HOST') ?: 'localhost';
$db = 'testfill';
// Load dynamic secrets from environment
$host = getenv('MYSQL_HOST') ?: '';
$user = getenv('MYSQL_USER') ?: 'root';
$pass = getenv('MYSQL_PASSWORD') ?: '';
$db = 'testfill';
$charset = 'utf8mb4';
// Setup PDO
// Connect to MariaDB
$dsn = "mysql:host=$host;charset=$charset";
$options = [
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
@ -28,57 +28,55 @@ try {
)
");
} catch (\PDOException $e) {
die("Database setup failed: " . $e->getMessage());
die("❌ DB connection failed: " . $e->getMessage());
}
// Disk usage (PVC mount path)
$mountPath = '/var/lib/mysql'; // Change this if PVC is mounted elsewhere
$freeBytes = disk_free_space($mountPath);
$totalBytes = disk_total_space($mountPath);
$freeGB = round($freeBytes / (1024 ** 3), 2);
$totalGB = round($totalBytes / (1024 ** 3), 2);
$usedGB = round(($totalBytes - $freeBytes) / (1024 ** 3), 2);
// Get database size from information_schema
try {
$stmt = $pdo->query("
SELECT ROUND(SUM(data_length + index_length) / 1024 / 1024 / 1024, 2) AS total_size_gb
FROM information_schema.tables
WHERE table_schema = 'testfill'
");
$dbSize = $stmt->fetch()['total_size_gb'] ?? '0';
} catch (Exception $e) {
$dbSize = 'N/A';
}
$message = '';
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['fill'])) {
$chunkSize = 1024 * 1024; // 1MB
$iterations = 1024; // 1GB total
$data = str_repeat(random_bytes(1024), 1024); // ~1MB binary blob
// Insert ~1GB of binary data
$iterations = 1024;
$data = str_repeat(random_bytes(1024), 1024); // 1MB
$stmt = $pdo->prepare("INSERT INTO filler (data) VALUES (:data)");
for ($i = 0; $i < $iterations; $i++) {
$stmt->execute([':data' => $data]);
}
// Recalculate DB size
$stmt = $pdo->query("
SELECT ROUND(SUM(data_length + index_length) / 1024 / 1024 / 1024, 2) AS total_size_gb
FROM information_schema.tables
WHERE table_schema = 'testfill'
");
$dbSize = $stmt->fetch()['total_size_gb'] ?? '0';
clearstatcache();
$freeBytes = disk_free_space($mountPath);
$freeGB = round($freeBytes / (1024 ** 3), 2);
$usedGB = round(($totalBytes - $freeBytes) / (1024 ** 3), 2);
$message = "<p style='color: green;'>✅ 1GB inserted. Disk usage updated.</p>";
$message = "<p style='color: green;'>✅ 1GB inserted into MariaDB successfully.</p>";
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Volume Filler</title>
<title>MariaDB Filler</title>
</head>
<body>
<h1>Kubernetes PVC Filler</h1>
<h1>MariaDB Storage Filler</h1>
<?= $message ?>
<ul>
<li>Total PVC Space: <?= $totalGB ?> GB</li>
<li>Used PVC Space: <?= $usedGB ?> GB</li>
<li>Free PVC Space: <?= $freeGB ?> GB</li>
<li><strong>MariaDB Used Size:</strong> <?= $dbSize ?> GB</li>
</ul>
<form method="post">
@ -87,4 +85,3 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST'&& isset($_POST['fill'])) {
</body>
</html>

20
harmony/src/modules/lamp.rs
View File

@ -113,7 +113,18 @@ impl<T: Topology + K8sclient + HelmCommand> Interpret<T> for LAMPInterpret {
}
}
},
]),
{
"name": "MYSQL_HOST",
"value": "harmony-lamp-demo-database-mariadb"
},
{
"name": "MYSQL_DATABASE",
"value": "testfill"
},
{
"name": "MYSQL_USER",
"value": "root"
}]),
};
info!("Deploying score {deployment_score:#?}");
@ -257,6 +268,13 @@ opcache.fast_shutdown=1
sed -i 's/ServerSignature On/ServerSignature Off/' /etc/apache2/conf-enabled/security.conf"
));
// Set env vars
dockerfile.push(RUN::from(
"echo 'PassEnv MYSQL_PASSWORD' >> /etc/apache2/sites-available/000-default.conf \
&& echo 'PassEnv MYSQL_USER' >> /etc/apache2/sites-available/000-default.conf \
&& echo 'PassEnv MYSQL_HOST' >> /etc/apache2/sites-available/000-default.conf"
));
// Create a dedicated user for running Apache
dockerfile.push(RUN::from(
"groupadd -g 1000 appuser && \