diff --git a/cluster-deploy b/cluster-deploy
index 15895f0..dac16a1 100644
--- a/cluster-deploy
+++ b/cluster-deploy
@@ -12,28 +12,24 @@
 PID=$$
 SCRIPTNAME="$(basename $0)"
 WORKER_LIST="worker.list"
-IP=""
+EXTERNAL=false
+MASTER_IP=""
 TOKEN=""
 HASH=""
-KUBERNETES_VERFILE="kubernetes.version"
-DOCKER_VERFILE="docker.version"
-DOCKER_VERSION=$(echo $(cat $DOCKER_VERFILE)|tr -d '\n')
-KUBERNETES_VERSION=$(echo $(cat $KUBERNETES_VERFILE)|tr -d '\n')
+
 
 # Functions
 
-#FIXME Write usage message
 function usage {
 cat << EOF
-
-Usage: $SCRIPTNAME <CNI>
-
-Available CNI plugins:
+Usage: $SCRIPTNAME [--external|-e] <CNI>
+--external|-e :	Initizalize Kubernetes on the external network
+				instead of on an internal one
+Available <CNI> plugins:
 	* Calico
 	* Cilium
 	* Flannel
 	* WeaveNet
-
 EOF
 }
 
@@ -57,30 +53,22 @@ function wait_for_podnetwork {
   done
 }
 
-## Check files from parameters
+# Preflight checks
+
+## Check file from parameters
 if [ ! -f $WORKER_LIST ]; then
 	echo_err "Worker list file ($WORKER_LIST) not exists."
 	exit 1
-	else if [ ! -s $WORKER_LIST ]; then
-		echo_err "Worker list file ($WORKER_LIST) is empty."
-	fi
 fi
 
-if [ ! -f $DOCKER_VERFILE ]; then
-	echo_err "Docker version file ($DOCKER_VERFILE) not exists."
+## Check the file contents
+if [ ! -s $WORKER_LIST ]; then
+	echo_err "Worker list file ($WORKER_LIST) is empty."
 	exit 1
-	else if [ ! -s $DOCKER_VERFILE ]; then
-		echo_err "Docker version file ($DOCKER_VERFILE) is empty."
-	fi
 fi
 
-if [ ! -f $KUBERNETES_VERFILE ]; then
-	echo_err "Kubernetes version file ($DOCKER_VERFILE) not exists."
-	exit 1
-	else if [ ! -s $DOCKER_VERFILE ]; then
-		echo_err "Kubernetes version file ($DOCKER_VERFILE) is empty."
-	fi
-fi
+## Create array from file
+readarray WORKER < $WORKER_LIST
 
 ## Check for argument
 if [ "$#" -lt 1 ]; then
@@ -88,62 +76,95 @@ if [ "$#" -lt 1 ]; then
 	exit 1
 fi
 
-# Make the letters of the argument lowercase
-CNI=$(tr '[:upper:]' '[:lower:]'  <<< $1)
+## Check for help parameter
+for i in "$@"
+do
+	### Make the letters of the argument lowercase
+    i=$(tr '[:upper:]' '[:lower:]' <<< $i)
+	case $i in
+		### Print out help message
+		help|h|-h|--help)	usage; exit 0;;
+	esac
+done
+
+## Check parameters and setup variables for Kubernetes installation
+for i in "$@"
+do
+	### Make the letters of the argument lowercase
+	i=$(tr '[:upper:]' '[:lower:]' <<< $i)
+	case $i in
+		### Kubernetes network usage (internal|external)
+		-e|--external) echo "# Kubernetes will be set up for external network. #";
+			EXTERNAL=false;;
+
+		### Set parameters for Calico
+		calico)	echo "[CNI] Calico selected...";
+			CNI="calico";
+			POD_NETWORK="192.168.0.0/16";;
+
+		### Set parameters for Cilium
+		cilium)	echo "[CNI] Cilium selected...";
+			CNI="cilium";
+			POD_NETWORK="";;
+
+		### Set parameters for Flannel
+		flannel) echo "[CNI] Flannel selected...";
+			CNI="flannel";
+			POD_NETWORK="10.244.0.0/16";;
+
+		### Set parameters for WeaveNet...
+		weavenet) echo "[CNI] WeaveNet selected...";
+			CNI="weavenet";
+			POD_NETWORK="";;
+
+		### Wrong argument, print error message
+		*)    	echo_err "Unkown parameter: $i option is not valid!";
+			exit 1;;
+	esac
+done
+
+## Get Master node IP address
+if [ $EXTERNAL ]; then
+	MASTER_IP=$(grep -oP '(?<=src )[^ ]*' \
+					<(grep \
+						-f <(ls -l /sys/class/net | grep pci | awk '{print $9}') \
+						<(ip ro sh) |
+					grep -v $(ip ro sh | grep default | awk '{print $5}')) |
+				head -1)
+	if [ "x$MASTER_IP" == "x" ]; then
+		EXTERNAL=false
+		MASTER_IP=$(grep -oP '(?<=src )[^ ]*' <(ip ro sh | grep default))
+	fi
+else
+	MASTER_IP=$(grep -oP '(?<=src )[^ ]*' <(ip ro sh | grep default))
+fi
 
 ## Setup Kubernetes
-./deploy/kubernetes_install.sh $DOCKER_vERSION $KUBERNETES_VERSION
+./deploy/kubernetes_install.sh master $EXTERNAL $MASTER_IP $POD_NETWORK
 
-## Initialize Master and install CNI plugin
-case $CNI in
-	### Setup Calico
-	calico)		echo "[CNI] Installing Calico... ";
-			./deploy/calico_setup.sh;
-			echo "[CNI]" Calico installion is completed.;;
+## Install CNI Plugin
+./deploy/${CNI}_setup.sh
 
-	### Setup Cilium
-	cilium)		echo "[CNI] Installing Cilium... ";
-			./deploy/cilium_setup.sh;
-			echo "[CNI]" Cilium installion is completed.;;
-
-	### Setup Flannel
-	flannel)	echo "[CNI] Installing Flannel... ";
-			./deploy/flannel_setup.sh;
-			echo "[CNI]" Flannel installion is completed.;;
-
-	### Setup WeaveNet
-	weavenet)	echo "[CNI] Installing WeaveNet... ";
-			./deploy/weavenet_setup.sh;
-			echo "[CNI]" WeaveNet installion is completed.;;
-
-	### Print out help message
-	help) 		usage; exit 0;;
-
-	### Wrong argument, print error message
-	*)		echo_err "Unknown CNI plugin!";
-			exit 1;;
-esac
-
-IP=$(ip addr sh dev $(ip ro sh | grep default | awk '{print $5}') scope global | grep inet | awk '{split($2,addresses,"/"); print addresses[1]}')
-#IP=$(ifconfig $(route | grep '^default' | grep -o '[^ ]*$') | grep "inet addr:" | awk '{print $2}' | cut -c6-)
 TOKEN=$(kubeadm token list | tail -n 1 | cut -d ' ' -f 1)
-HASH=sha256:$(openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //')
+HASH=sha256:$(openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt |
+				openssl rsa -pubin -outform der 2>/dev/null |
+				openssl dgst -sha256 -hex |
+				sed 's/^.* //')
 
 #FIXME Do I need local docker-registry?
 #./deploy/docker_registry_setup.sh $IP:5000
 
 # Join the worker nodes
-for LINE in $(cat $WORKER_LIST | grep -vE "^#"); do
-	WORKERNAME=`echo $LINE | awk -F"/" '{print $NF}'`
-
+for WORKERNAME in ${WORKER[@]}; do
 	echo "[worker:$WORKERNAME] Deploying..."
-	ssh $WORKERNAME -o "StrictHostKeyChecking no" "bash -s" < ./deploy/kubernetes_install.sh $DOCKER_vERSION $KUBERNETES_VERSION true $IP:6443 $TOKEN $HASH
+	ssh $WORKERNAME -o "StrictHostKeyChecking no" \
+			"bash -s" < ./deploy/kubernetes_install.sh worker $EXTERNAL $MASTER_IP:6443 $TOKEN $HASH
 
 	#FIXME Do I need to wait for the worker?
-	wait_for_worker
+#	wait_for_worker
 
 	#FIXME Do I need local docker-registry?
-	#ssh $WORKERNAME -o "StrictHostKeyChecking no" "bash -s" < ./deploy/docker_registry_setup.sh $IP:5000
+#	ssh $WORKERNAME -o "StrictHostKeyChecking no" "bash -s" < ./deploy/docker_registry_setup.sh $MASTER_IP:5000
 
 	echo "[worker:$WORKERNAME] Deployment is completed."
 done