From 2c023ee644bfa14aae5ae4e5beaee354f79c5f27 Mon Sep 17 00:00:00 2001
From: Zankaria <zankaria.auxa@mailu.io>
Date: Fri, 25 Apr 2025 18:00:54 +0200
Subject: [PATCH] templates.php: use local vars for container checking

---
 inc/template.php | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/inc/template.php b/inc/template.php
index db206ab1..fbe8e9b3 100644
--- a/inc/template.php
+++ b/inc/template.php
@@ -233,11 +233,11 @@ function twig_secure_link($href) {
  */
 
 function twig_check_container() {
-	global $config;
-	$isDocker = is_file("/.dockerenv") || is_file("/run/.containerenv");
-	$isKubernetes = is_file("/var/run/secrets/kubernetes.io/serviceaccount/namespace");
-	$config['is_container'] = $isDocker || $isKubernetes ? true : false;
-	$config['is_docker'] = $isDocker;
-	$config['is_kubernetes'] = $isKubernetes;
-	return $config['is_container'];
-}
\ No newline at end of file
+	static $is_container = null;
+	if ($is_container === null) {
+		$is_docker = \is_file("/.dockerenv") || \is_file("/run/.containerenv");
+		$is_kubernetes = \is_file("/var/run/secrets/kubernetes.io/serviceaccount/namespace");
+		$is_container = $is_docker || $is_kubernetes;
+	}
+	return $is_container;
+}