init.php connection to db with ssh

.gitignore

@@ -0,0 +1 @@
+.env

init.php

@@ -1,6 +1,18 @@
 <?php
 
-$host = 'webgis-db'; // Matches the service name in docker-compose
+
+$envFile = __DIR__ . '/.env';
+if (file_exists($envFile)) {
+    $lines = file($envFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+        if (strpos(trim($line), '#') === 0) continue;
+        list($key, $value) = array_map('trim', explode('=', $line, 2));
+        putenv("$key=$value");
+    }
+}
+
+$host = getenv('POSTGRES_HOST');
+$port = getenv('POSTGRES_PORT');
 $db   = getenv('POSTGRES_DB');
 $user = getenv('POSTGRES_USER');
 $pass = getenv('POSTGRES_PASSWORD');
@@ -16,7 +28,7 @@ $pass = getenv('POSTGRES_PASSWORD');
             PDO::ATTR_EMULATE_PREPARES   => false
         ];
 
-        $dsn = "pgsql:host=localhost;dbname=$db;port=5432";
+        $dsn = "pgsql:host=$host;dbname=$db;port=$port";
         $pdo = new PDO($dsn, $user, $pass, $opt);
     
     // Error-Message