diff --git a/docs/getting-started-guides/docker-multinode/master.sh b/docs/getting-started-guides/docker-multinode/master.sh
index 33ead98ea73..2f9a4c7c489 100755
--- a/docs/getting-started-guides/docker-multinode/master.sh
+++ b/docs/getting-started-guides/docker-multinode/master.sh
@@ -50,12 +50,12 @@ lsb_dist=""
 # Detect the OS distro, we support ubuntu, debian, mint, centos, fedora dist
 detect_lsb() {
     case "$(uname -m)" in
-    *64)
-        ;;
-    *)
-        echo "Error: We currently only support 64-bit platforms."       
-        exit 1
-        ;;
+        *64)
+            ;;
+         *)
+            echo "Error: We currently only support 64-bit platforms."       
+            exit 1
+            ;;
     esac
 
     if command_exists lsb_release; then
@@ -75,6 +75,15 @@ detect_lsb() {
     fi
 
     lsb_dist="$(echo ${lsb_dist} | tr '[:upper:]' '[:lower:]')"
+
+    case "${lsb_dist}" in
+        amzn|centos|debian|ubuntu)
+            ;;
+        *)
+            echo "Error: We currently only support ubuntu|debian|amzn|centos."
+            exit 1
+            ;;
+    esac
 }
 
 
@@ -106,13 +115,13 @@ start_k8s(){
     source subnet.env
 
     # Configure docker net settings, then restart it
-    case "$lsb_dist" in
+    case "${lsb_dist}" in
         amzn)
             DOCKER_CONF="/etc/sysconfig/docker"
             echo "OPTIONS=\"\$OPTIONS --mtu=${FLANNEL_MTU} --bip=${FLANNEL_SUBNET}\"" | sudo tee -a ${DOCKER_CONF}
             ifconfig docker0 down
             yum -y -q install bridge-utils && brctl delbr docker0 && service docker restart
-        ;;
+            ;;
         centos)
             DOCKER_CONF="/etc/sysconfig/docker"
             echo "OPTIONS=\"\$OPTIONS --mtu=${FLANNEL_MTU} --bip=${FLANNEL_SUBNET}\"" | sudo tee -a ${DOCKER_CONF}
@@ -121,17 +130,17 @@ start_k8s(){
             fi
             ifconfig docker0 down
             yum -y -q install bridge-utils && brctl delbr docker0 && systemctl restart docker
-        ;;
+            ;;
         ubuntu|debian)
             DOCKER_CONF="/etc/default/docker"
             echo "DOCKER_OPTS=\"\$DOCKER_OPTS --mtu=${FLANNEL_MTU} --bip=${FLANNEL_SUBNET}\"" | sudo tee -a ${DOCKER_CONF}
             ifconfig docker0 down
             apt-get install bridge-utils && brctl delbr docker0 && service docker restart
-        ;;
+            ;;
         *)
-            echo "Unsupported operations system $lsb_dist"
+            echo "Unsupported operations system ${lsb_dist}"
             exit 1
-        ;;
+            ;;
     esac
 
     # sleep a little bit
diff --git a/docs/getting-started-guides/docker-multinode/worker.sh b/docs/getting-started-guides/docker-multinode/worker.sh
index b8be0168b5a..a1e7ea275bf 100755
--- a/docs/getting-started-guides/docker-multinode/worker.sh
+++ b/docs/getting-started-guides/docker-multinode/worker.sh
@@ -59,12 +59,12 @@ lsb_dist=""
 # Detect the OS distro, we support ubuntu, debian, mint, centos, fedora dist
 detect_lsb() {
     case "$(uname -m)" in
-    *64)
-        ;;
-    *)
-	echo "Error: We currently only support 64-bit platforms."	    
-	exit 1
-	;;
+        *64)
+            ;;
+        *)
+	        echo "Error: We currently only support 64-bit platforms."	    
+	        exit 1
+	        ;;
     esac
 
     if command_exists lsb_release; then
@@ -84,6 +84,15 @@ detect_lsb() {
     fi
 
     lsb_dist="$(echo ${lsb_dist} | tr '[:upper:]' '[:lower:]')"
+
+    case "${lsb_dist}" in
+        amzn|centos|debian|ubuntu)
+            ;;
+        *)
+            echo "Error: We currently only support ubuntu|debian|amzn|centos."
+            exit 1
+            ;;
+    esac
 }
 
 
@@ -108,7 +117,7 @@ start_k8s() {
     source subnet.env
 
     # Configure docker net settings, then restart it
-    case "$lsb_dist" in
+    case "${lsb_dist}" in
         centos)
             DOCKER_CONF="/etc/sysconfig/docker"
             echo "OPTIONS=\"\$OPTIONS --mtu=${FLANNEL_MTU} --bip=${FLANNEL_SUBNET}\"" | sudo tee -a ${DOCKER_CONF}
@@ -117,23 +126,23 @@ start_k8s() {
             fi
             ifconfig docker0 down
             yum -y -q install bridge-utils && brctl delbr docker0 && systemctl restart docker
-        ;;
+            ;;
         amzn)
             DOCKER_CONF="/etc/sysconfig/docker"
             echo "OPTIONS=\"\$OPTIONS --mtu=${FLANNEL_MTU} --bip=${FLANNEL_SUBNET}\"" | sudo tee -a ${DOCKER_CONF}
             ifconfig docker0 down
             yum -y -q install bridge-utils && brctl delbr docker0 && service docker restart
-        ;;
+            ;;
         ubuntu|debian)
             DOCKER_CONF="/etc/default/docker"
             echo "DOCKER_OPTS=\"\$DOCKER_OPTS --mtu=${FLANNEL_MTU} --bip=${FLANNEL_SUBNET}\"" | sudo tee -a ${DOCKER_CONF}
             ifconfig docker0 down
             apt-get install bridge-utils && brctl delbr docker0 && service docker restart
-        ;;
+            ;;
         *)
-            echo "Unsupported operations system $lsb_dist"
+            echo "Unsupported operations system ${lsb_dist}"
             exit 1
-        ;;
+            ;;
     esac
 
     # sleep a little bit