diff --git a/src/icinga2/constants-service.conf b/src/icinga2/constants-service.conf
index 017134b..3bfe5d8 100644
--- a/src/icinga2/constants-service.conf
+++ b/src/icinga2/constants-service.conf
@@ -1,8 +1,30 @@
 #!/bin/bash
-#
-# Zamba LXC Toolbox - Service Constants
-# Service: icinga-stack
-#
+
+# Authors:
+# (C) 2021 Idea an concept by Christian Zengel <christian@sysops.de>
+# (C) 2021 Script design and prototype by Markus Helmke <m.helmke@nettwarker.de>
+# (C) 2021 Script rework and documentation by Thorsten Spille <thorsten@spille-edv.de>
+
+# This file contains the project constants on service level
+
+# Debian Version, which will be installed
+LXC_TEMPLATE_VERSION="debian-12-standard"
+
+# Create sharefs mountpoint
+LXC_MP=0
+# Defines the mountpoint of the filesystem shared by Zamba inside your LXC container (default: tank)
+LXC_SHAREFS_MOUNTPOINT="tank"
+# Defines the recordsize of mp0
+LXC_MP_RECORDSIZE="16K"
+
+# Create unprivileged container
+LXC_UNPRIVILEGED="1"
+
+# enable nesting feature
+LXC_NESTING="1"
+
+# enable keyctl feature
+LXC_KEYCTL="0"
 
 # --- Service Metadata ---
 ZAMBA_SERVICE_NAME="Icinga2 Monitoring Stack"