diff --git a/install.sh b/install.sh
index b02a2a7..b987586 100755
--- a/install.sh
+++ b/install.sh
@@ -6,21 +6,26 @@
 # get architecture
 arc=$(uname -m)
 
+if [ ! -f "wordpress.conf" ]; then
+	cp openhab.conf.example openhab.conf
 
-# create directories
-mkdir -p data/conf
-mkdir -p data/userdata
-mkdir -p data/addons
+	# create directories
+	mkdir -p data/conf
+	mkdir -p data/userdata
+	mkdir -p data/addons
 
-# replace uid and gid in config file
-sed -i "/^OPENHAB_USER/c\\\OPENHAB_USER_ID=${uid}" openhab.conf
+	# replace uid and gid in config file
+	sed -i "/^OPENHAB_USER/c\\\OPENHAB_USER_ID=${uid}" openhab.conf
 
-# replace architecture
-if [[ $arc == "x86_64" ]]; then
-	sed -i "/^OPENHAB_ARCH=/c\\\OPENHAB_ARCH=amd64" openhab.conf
-elif [[ $arc == *"armv"* ]]; then
-	sed -i "/^OPENHAB_ARCH=/c\\\OPENHAB_ARCH=armhf" openhab.conf
+	# replace architecture
+	if [[ $arc == "x86_64" ]]; then
+		sed -i "/^OPENHAB_ARCH=/c\\\OPENHAB_ARCH=amd64" openhab.conf
+	elif [[ $arc == *"armv"* ]]; then
+		sed -i "/^OPENHAB_ARCH=/c\\\OPENHAB_ARCH=armhf" openhab.conf
+	else
+		echo "unsupportet architecture"
+		exit 1
+	fi
 else
-	echo "unsupportet architecture"
-	exit 1
+	echo "Config already exists!"
 fi
diff --git a/openhab.conf b/openhab.conf
deleted file mode 100644
index 71ecd8c..0000000
--- a/openhab.conf
+++ /dev/null
@@ -1,25 +0,0 @@
-# system architecture
-# amd64, armhf, arm64
-# look at https://hub.docker.com/r/openhab/openhab/ for more details
-OPENHAB_ARCH=amd64
-
-# user configuration
-# http://docs.openhab.org/installation/docker.html
-# please add user like UID:GID
-OPENHAB_USER_ID=1000
-
-# network configuration
-OPENHAB_HTTP_BIND=127.0.0.1
-OPENHAB_HTTP_PORT=8080
-
-OPENHAB_HTTPS_BIND=127.0.0.1
-OPENHAB_HTTPS_PORT=8443
-
-OPENHAB_OSGI_BIND=127.0.0.1
-OPENHAB_OSGI_PORT=5555
-
-# timezone
-TZ=Europe/Berlin
-
-# language
-OPENHAB_LANG=de_DE.UTF-8
diff --git a/openhab.conf.example b/openhab.conf.example
new file mode 100644
index 0000000..71ecd8c
--- /dev/null
+++ b/openhab.conf.example
@@ -0,0 +1,25 @@
+# system architecture
+# amd64, armhf, arm64
+# look at https://hub.docker.com/r/openhab/openhab/ for more details
+OPENHAB_ARCH=amd64
+
+# user configuration
+# http://docs.openhab.org/installation/docker.html
+# please add user like UID:GID
+OPENHAB_USER_ID=1000
+
+# network configuration
+OPENHAB_HTTP_BIND=127.0.0.1
+OPENHAB_HTTP_PORT=8080
+
+OPENHAB_HTTPS_BIND=127.0.0.1
+OPENHAB_HTTPS_PORT=8443
+
+OPENHAB_OSGI_BIND=127.0.0.1
+OPENHAB_OSGI_PORT=5555
+
+# timezone
+TZ=Europe/Berlin
+
+# language
+OPENHAB_LANG=de_DE.UTF-8