diff --git a/demo/common_func.sh b/demo/common_func.sh
new file mode 100755
index 000000000..83b1869f6
--- /dev/null
+++ b/demo/common_func.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+#set -x
+
+function LabelIstioInjectLabel() 
+{  
+    ns=$1
+	echo $ns
+	label=`kubectl get po -n istio-system  |grep istiod | awk '{print $1}'  |xargs kubectl get po  -o yaml  -n istio-system  |grep -A 1 REVIS |grep value:  |awk  '{print $2}'`
+	echo $label
+	if [ $label != "" ];then
+		kubectl label namespace $ns istio.io/rev=$label --overwrite
+	else 
+		kubectl label namespace $ns istio-injection=enabled --overwrite=true
+	fi
+    return 0;  
+}
+
diff --git a/demo/dubbo/install.sh b/demo/dubbo/install.sh
index d6126e914..79cb0d4ae 100755
--- a/demo/dubbo/install.sh
+++ b/demo/dubbo/install.sh
@@ -13,10 +13,12 @@
 # limitations under the License.
 
 BASEDIR=$(dirname "$0")
+source $BASEDIR/../common_func.sh
+
 
 kubectl create ns dubbo
-kubectl label namespace dubbo istio-injection=enabled --overwrite=true
+LabelIstioInjectLabel dubbo
 kubectl apply -f $BASEDIR/dubbo-sample.yaml -n dubbo
 kubectl apply -f $BASEDIR/serviceentry.yaml -n dubbo
 kubectl apply -f $BASEDIR/destinationrule.yaml -n dubbo
-kubectl apply -f $BASEDIR/virtualservice-traffic-splitting.yaml -n dubbo
\ No newline at end of file
+kubectl apply -f $BASEDIR/virtualservice-traffic-splitting.yaml -n dubbo
diff --git a/demo/kafka/install.sh b/demo/kafka/install.sh
index ed435ac2d..92b55834f 100755
--- a/demo/kafka/install.sh
+++ b/demo/kafka/install.sh
@@ -13,9 +13,11 @@
 # limitations under the License.
 
 BASEDIR=$(dirname "$0")
+source $BASEDIR/../common_func.sh
+
 
 kubectl create ns kafka
-kubectl label namespace kafka istio-injection=enabled --overwrite=true
+LabelIstioInjectLabel kafka
 helm repo add zhaohuabing https://zhaohuabing.github.io/helm-repo
 helm repo update
 helm install my-release --set persistence.enabled=false --set zookeeper.persistence.enabled=false zhaohuabing/kafka -n kafka
diff --git a/demo/metaprotocol-dubbo/install.sh b/demo/metaprotocol-dubbo/install.sh
index 49fb11b9d..5efbf8fc3 100755
--- a/demo/metaprotocol-dubbo/install.sh
+++ b/demo/metaprotocol-dubbo/install.sh
@@ -13,10 +13,12 @@
 # limitations under the License.
 
 BASEDIR=$(dirname "$0")
+source $BASEDIR/../common_func.sh
+
 
 kubectl create ns meta-dubbo
-kubectl label namespace meta-dubbo istio-injection=enabled --overwrite=true
+LabelIstioInjectLabel meta-dubbo
 kubectl apply -f $BASEDIR/../../k8s/aeraki-bootstrap-config.yaml -n meta-dubbo
 kubectl apply -f $BASEDIR/dubbo-sample.yaml -n meta-dubbo
 kubectl apply -f $BASEDIR/serviceentry.yaml -n meta-dubbo
-kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-dubbo
\ No newline at end of file
+kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-dubbo
diff --git a/demo/metaprotocol-qza/install.sh b/demo/metaprotocol-qza/install.sh
index 5ec6679e2..b2f14a84f 100755
--- a/demo/metaprotocol-qza/install.sh
+++ b/demo/metaprotocol-qza/install.sh
@@ -13,10 +13,12 @@
 # limitations under the License.
 
 BASEDIR=$(dirname "$0")
+source $BASEDIR/../common_func.sh
+
 
 kubectl create ns meta-qza
-kubectl label namespace meta-qza istio-injection=enabled --overwrite=true
+LabelIstioInjectLabel meta-qza
 kubectl apply -f $BASEDIR/qza-protocol.yaml -n istio-system
 kubectl apply -f $BASEDIR/../../k8s/aeraki-bootstrap-config.yaml -n meta-qza
 kubectl apply -f $BASEDIR/qza-sample.yaml -n meta-qza
-kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-qza
\ No newline at end of file
+kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-qza
diff --git a/demo/metaprotocol-thrift/install.sh b/demo/metaprotocol-thrift/install.sh
index 41990ab94..066c976e0 100755
--- a/demo/metaprotocol-thrift/install.sh
+++ b/demo/metaprotocol-thrift/install.sh
@@ -13,11 +13,13 @@
 # limitations under the License.
 
 BASEDIR=$(dirname "$0")
+source $BASEDIR/../common_func.sh
+
 
 kubectl create ns meta-thrift
-kubectl label namespace meta-thrift istio-injection=enabled --overwrite=true
+LabelIstioInjectLabel meta-thrift
 kubectl apply -f $BASEDIR/../../k8s/aeraki-bootstrap-config.yaml -n meta-thrift
 kubectl apply -f $BASEDIR/thrift-sample.yaml -n meta-thrift
 kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-thrift
 kubectl create cm rate-limit-config -n meta-thrift --from-file $BASEDIR/rate-limit-server/config.yaml
-kubectl apply -f $BASEDIR/rate-limit-server/rate-limit-server.yaml -n meta-thrift
\ No newline at end of file
+kubectl apply -f $BASEDIR/rate-limit-server/rate-limit-server.yaml -n meta-thrift
diff --git a/demo/metaprotocol-trpc/install.sh b/demo/metaprotocol-trpc/install.sh
index d5aba08f8..4c68671d3 100755
--- a/demo/metaprotocol-trpc/install.sh
+++ b/demo/metaprotocol-trpc/install.sh
@@ -13,10 +13,12 @@
 # limitations under the License.
 
 BASEDIR=$(dirname "$0")
+source $BASEDIR/../common_func.sh
+
 
 kubectl create ns meta-trpc
-kubectl label namespace meta-trpc istio-injection=enabled --overwrite=true
+LabelIstioInjectLabel meta-trpc
 kubectl apply -f $BASEDIR/trpc-protocol.yaml -n istio-system
 kubectl apply -f $BASEDIR/../../k8s/aeraki-bootstrap-config.yaml -n meta-trpc
 kubectl apply -f $BASEDIR/trpc-sample.yaml -n meta-trpc
-kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-trpc
\ No newline at end of file
+kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-trpc
diff --git a/demo/metaprotocol-videopacket/install.sh b/demo/metaprotocol-videopacket/install.sh
index 7d6470a9b..c5a0d173f 100755
--- a/demo/metaprotocol-videopacket/install.sh
+++ b/demo/metaprotocol-videopacket/install.sh
@@ -13,10 +13,12 @@
 # limitations under the License.
 
 BASEDIR=$(dirname "$0")
+source $BASEDIR/../common_func.sh
+
 
 kubectl create ns meta-videopacket
-kubectl label namespace meta-videopacket istio-injection=enabled --overwrite=true
+LabelIstioInjectLabel meta-videopacket
 kubectl apply -f $BASEDIR/videopacket-protocol.yaml -n istio-system
 kubectl apply -f $BASEDIR/../../k8s/aeraki-bootstrap-config.yaml -n meta-videopacket
 kubectl apply -f $BASEDIR/videopacket-sample.yaml -n meta-videopacket
-kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-videopacket
\ No newline at end of file
+kubectl apply -f $BASEDIR/destinationrule.yaml -n meta-videopacket
diff --git a/demo/thrift/install.sh b/demo/thrift/install.sh
index c75c83988..e5c9ab251 100755
--- a/demo/thrift/install.sh
+++ b/demo/thrift/install.sh
@@ -13,9 +13,11 @@
 # limitations under the License.
 
 BASEDIR=$(dirname "$0")
+source $BASEDIR/../common_func.sh
+
 
 kubectl create ns thrift
-kubectl label namespace thrift istio-injection=enabled --overwrite=true
+LabelIstioInjectLabel thrift
 kubectl apply -f $BASEDIR/thrift-sample.yaml -n thrift
 kubectl apply -f $BASEDIR/destinationrule.yaml -n thrift
-kubectl apply -f $BASEDIR/virtualservice-traffic-splitting.yaml -n thrift
\ No newline at end of file
+kubectl apply -f $BASEDIR/virtualservice-traffic-splitting.yaml -n thrift