Enable preloading (#140)

Author: tucksaun

.symfony.cloud.yaml

@@ -20,6 +20,10 @@ web:
 
 disk: 2048
 
+variables:
+    php:
+        opcache.preload: /app/config/preload.php
+
 mounts:
     '/var': { source: local, source_path: var }
 

config/preload.php

@@ -0,0 +1,5 @@
+<?php
+
+if (file_exists(dirname(__DIR__).'/var/cache/prod/App_KernelProdContainer.preload.php')) {
+    require dirname(__DIR__).'/var/cache/prod/App_KernelProdContainer.preload.php';
+}