Add docker container definition

Change-Id: If32020e6b8e8bb816eb54533554b18cc5302b5c9
diff --git a/admin/insert.php b/admin/insert.php
index 9f5abb2..3a22ca4 100644
--- a/admin/insert.php
+++ b/admin/insert.php
@@ -3,7 +3,7 @@
 	require '../php/utils.php';
 
 	$credentials = new Credentials();
-	if ($credentials->adminToken != ($_POST["token"] ?? "")) {
+	if ($credentials->adminToken() != ($_POST["token"] ?? "")) {
 		exit();
 	}