diff --git a/src/onlyoffice/constants-service.conf b/src/onlyoffice/constants-service.conf
new file mode 100644
index 0000000..07c2aa6
--- /dev/null
+++ b/src/onlyoffice/constants-service.conf
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# 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
+
+# Create sharefs mountpoint
+LXC_MP="0"
+
+# Create unprivileged container
+LXC_UNPRIVILEGED="1"
+
+# enable nesting feature
+LXC_NESTING="0"
+
+ONLYOFFICE_DB_HOST=localhost
+
+ONLYOFFICE_DB_NAME=onlyoffice
+
+ONLYOFFICE_DB_USER=onlyoffice
\ No newline at end of file
diff --git a/src/onlyoffice/install-service.sh b/src/onlyoffice/install-service.sh
new file mode 100644
index 0000000..7e81b7b
--- /dev/null
+++ b/src/onlyoffice/install-service.sh
@@ -0,0 +1,28 @@
+source /root/zamba.conf
+source /root/constants-service.conf
+ONLYOFFICE_DB_PASSWORD=$(source /root/postgresql.sh 13 $ONLYOFFICE_DB_NAME $ONLYOFFICE_DB_USER)
+source /root/rabbitmq-server.sh
+
+apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys CB2DE8E5
+echo "deb https://download.onlyoffice.com/repo/debian squeeze main" > /etc/apt/sources.list.d/onlyoffice.list
+
+apt update
+
+echo onlyoffice-documentserver onlyoffice/ds-port select 80 | debconf-set-selections
+echo onlyoffice-documentserver onlyoffice/db-host string $ONLYOFFICE_DB_HOST | sudo debconf-set-selections
+echo onlyoffice-documentserver onlyoffice/db-user string $ONLYOFFICE_DB_NAME | sudo debconf-set-selections
+echo onlyoffice-documentserver onlyoffice/db-name string $ONLYOFFICE_DB_USER | sudo debconf-set-selections
+echo onlyoffice-documentserver onlyoffice/db-pwd password $ONLYOFFICE_DB_PASSWORD | debconf-set-selections
+
+DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq install ttf-mscorefonts-installer onlyoffice-documentserver
+
+cat << EOF > /root/onlyoffice.credentials
+ONLYOFFICE_DB_HOST=$ONLYOFFICE_DB_HOST
+ONLYOFFICE_DB_NAME=$ONLYOFFICE_DB_NAME
+ONLYOFFICE_DB_USER=$ONLYOFFICE_DB_USER
+ONLYOFFICE_DB_PASSWORD=$ONLYOFFICE_DB_PASSWORD
+EOF
+
+/etc/nginx/conf.d/ds.conf
+cp /etc/onlyoffice/documentserver/nginx/ds-ssl.conf.tmpl /etc/onlyoffice/documentserver/nginx/ds-ssl.conf
+ln -sf /etc/onlyoffice/documentserver/nginx/ds-ssl.conf /etc/nginx/conf.d/ds-ssl.conf