diff --git a/.gitignore b/.gitignore
index 940794e..6c856ca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -286,3 +286,7 @@ __pycache__/
 *.btm.cs
 *.odx.cs
 *.xsd.cs
+
+# DevOps Sample Solution
+controller_parameters.debug.json
+azuredeploy.parameters.debug.json
\ No newline at end of file
diff --git a/cicd/armtemplate/jenkins_private_registry_k8s/azuredeploy.json b/cicd/armtemplate/jenkins_private_registry_k8s/azuredeploy.json
index a9aeceb..82fcd78 100644
--- a/cicd/armtemplate/jenkins_private_registry_k8s/azuredeploy.json
+++ b/cicd/armtemplate/jenkins_private_registry_k8s/azuredeploy.json
@@ -68,7 +68,14 @@
         "description": "The private key for kubernetes master FQDN, need to be base64 encoded"
       },
       "defaultValue": ""
-    }        
+    },
+    "dockerEngineDownloadRepo": {
+      "metadata": {
+        "description": "docker-engine download repo."
+      },
+      "defaultValue": "https://mirror.azure.cn/docker-engine/apt/repo",
+      "type": "string"
+    }
   },
   "variables": {
     "resourcePrefix": "jenkins",
@@ -266,7 +273,7 @@
               ]
             },
             "protectedSettings": {
-              "commandToExecute": "[concat('./' , variables('_extensionScript'),' -jf \"', reference(variables('publicIPAddressName')).dnsSettings.fqdn, '\" -u \"', parameters('adminUsername') , '\" -g \"', parameters('gitRepository') , '\" -r \"', parameters('privateRegistryUrl'), '\" -ru \"', parameters('privateRegistryUserName'), '\" -rp \"', parameters('privateRegistryPassword'), '\" -al \"', variables('_artifactsLocation'), '\" -st \"', variables('_artifactsLocationSasToken'), '\" -kmf \"', parameters('kubernetesMasterFQDN'), '\" -kun \"', parameters('kubernetesUserName'), '\" -kpk \"', parameters('kubernetesPrivateKey'), '\"' )]"
+              "commandToExecute": "[concat('./' , variables('_extensionScript'),' -jf \"', reference(variables('publicIPAddressName')).dnsSettings.fqdn, '\" -u \"', parameters('adminUsername') , '\" -g \"', parameters('gitRepository') , '\" -r \"', parameters('privateRegistryUrl'), '\" -ru \"', parameters('privateRegistryUserName'), '\" -rp \"', parameters('privateRegistryPassword'), '\" -al \"', variables('_artifactsLocation'), '\" -st \"', variables('_artifactsLocationSasToken'), '\" -kmf \"', parameters('kubernetesMasterFQDN'), '\" -kun \"', parameters('kubernetesUserName'), '\" -kpk \"', parameters('kubernetesPrivateKey'), '\" -dedr \"', parameters('dockerEngineDownloadRepo'),'\"' )]"
             }
           }
         }
diff --git a/cicd/script/jenkins/run-cli-command.sh b/cicd/script/jenkins/run-cli-command.sh
index 2c43552..3bea83c 100644
--- a/cicd/script/jenkins/run-cli-command.sh
+++ b/cicd/script/jenkins/run-cli-command.sh
@@ -76,7 +76,7 @@ function retry_until_successful {
         else
             let counter++
         fi
-        sleep 10
+        sleep 15
         "${@}"
     done;
 }
diff --git a/cicd/script/quickstart_template/201-jenkins-private-registry-k8s.sh b/cicd/script/quickstart_template/201-jenkins-private-registry-k8s.sh
index ed099d8..cf5fd3e 100644
--- a/cicd/script/quickstart_template/201-jenkins-private-registry-k8s.sh
+++ b/cicd/script/quickstart_template/201-jenkins-private-registry-k8s.sh
@@ -17,6 +17,7 @@ Arguments
   --kubernetes_private_key|-kpk [Required] : kubernetes private key log in to master FQDN
   --artifacts_location|-al            : Url used to reference other scripts/artifacts.
   --sas_token|-st                     : A sas token needed if the artifacts location is private.
+  --docker_engine_download_repo|-dedr : docker-engine download repo
 EOF
 }
 
@@ -48,8 +49,8 @@ function install_kubectl() {
   fi
 }
 function install_docker_fromMirror() {
-  curl -fsSL https://mirror.azure.cn/docker-engine/apt/gpg | sudo apt-key add -
-  sudo add-apt-repository "deb [arch=amd64] https://mirror.azure.cn/docker-engine/apt/repo ubuntu-xenial main"
+  curl --max-time 60 -fsSL https://aptdocker.azureedge.net/gpg | apt-key add -
+  sudo add-apt-repository "deb [arch=amd64] ${docker_engine_download_repo} ubuntu-xenial main"
   sudo apt-get update --fix-missing
   apt-cache policy docker-engine
   sudo apt-get install -y unzip docker-engine nginx apache2-utils
@@ -128,7 +129,11 @@ do
     --kubernetes_private_key|-kpk)
       kubernetes_private_key="$1"
       shift
-      ;;                  
+      ;;
+    --docker_engine_download_repo|-dedr)
+      docker_engine_download_repo="$1"
+      shift
+      ;;
     --help|-help|-h)
       print_usage
       exit 13
@@ -147,7 +152,10 @@ throw_if_empty --registry_password $registry_password
 throw_if_empty --jenkins_fqdn $jenkins_fqdn
 throw_if_empty --kubernetes_master_fqdn $kubernetes_master_fqdn
 throw_if_empty --kubernetes_user_name $kubernetes_user_name
-throw_if_empty --kubernetes_private_key $kubernetes_private_key
+
+if [ -z "$docker_engine_download_repo" ] ; then
+  docker_engine_download_repo="https://mirror.azure.cn/docker-engine/apt/repo"
+fi
 
 if [ -z "$repository" ]; then
   repository="${vm_user_name}/myfirstapp"
@@ -170,6 +178,25 @@ sleep 5
 sudo gpasswd -a jenkins docker
 skill -KILL -u jenkins
 sudo service jenkins restart
+
+# check jenkins is fully up
+echo "waiting jenkins fully up at $(date "+%Y-%m-%d %H:%M:%S")"
+jenkins_up_counter=0
+jenkins_fully_up=1
+while [[ $(curl -s -w "%{http_code}" http://localhost:8080/ -o /dev/null) == "503" ]]; do
+  if [[ "$jenkins_up_counter" -gt 30 ]]; then
+    echo "jenkins still not fully up at $(date "+%Y-%m-%d %H:%M:%S")"
+    jenkins_fully_up=0
+    break
+  else
+    let jenkins_up_counter++
+  fi
+  sleep 10
+done
+if [ ! -z $jenkins_fully_up ] ; then
+  echo "jenkins fully up at $(date "+%Y-%m-%d %H:%M:%S"), retried $jenkins_up_counter time(s)."
+fi
+
 echo "Including the pipeline"
 run_util_script "jenkins/add-docker-build-deploy-k8s.sh" -j "http://localhost:8080/" -ju "admin" -g "${git_url}" -r "${registry}" -ru "${registry_user_name}"  -rp "${registry_password}" -rr "$repository" -sps "* * * * *" -al "$artifacts_location" -st "$artifacts_location_sas_token"
 install_kubectl