MCLOUD-2649: [opcache] Disable timestamps validation (#489)

Author: BaDos

op-exclude.txt

@@ -0,0 +1,4 @@
+/app/*/app/etc/config.php
+/app/*/etc/env.php
+/app/etc/config.php
+/app/etc/env.php

php.ini

@@ -39,3 +39,9 @@ max_input_vars = 10000
 ; Setup the session garbage collector
 ;
 session.gc_probability = 1
+
+;
+; Setup opcache configuration
+;
+opcache.validate_timestamps = 0
+opcache.blacklist_filename="${MAGENTO_CLOUD_APP_DIR}/op-exclude.txt"