diff --git a/tools/easzup b/tools/easzup
new file mode 100755
index 0000000..0d4df2f
--- /dev/null
+++ b/tools/easzup
@@ -0,0 +1,269 @@
+#!/bin/bash
+
+set -o nounset
+set -o errexit
+set -o xtrace
+
+function install_docker() {
+  systemctl status docker|grep Active|grep -q running && { echo "[WARN] dockerd already running!"; return 0; }
+  
+  systemctl status containerd|grep Active|grep -q running && { echo "[ERROR] containerd running, but unsupported!"; exit 1; }
+
+  mkdir -p /opt/kube/bin /etc/docker
+  echo "[INFO] downloading docker $DOCKER_VER"
+  wget -c https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/static/stable/x86_64/docker-$DOCKER_VER.tgz
+  tar zxf docker-$DOCKER_VER.tgz
+  mv docker/* /opt/kube/bin
+  rm -rf docker*
+  ln -sf /opt/kube/bin/docker /bin
+  
+  echo "[INFO] generate docker service file"
+  echo '[Unit]
+Description=Docker Application Container Engine
+Documentation=http://docs.docker.io
+[Service]
+Environment="PATH=/opt/kube/bin:/bin:/sbin:/usr/bin:/usr/sbin"
+ExecStart=/opt/kube/bin/dockerd
+ExecStartPost=/sbin/iptables -I FORWARD -s 0.0.0.0/0 -j ACCEPT
+ExecReload=/bin/kill -s HUP $MAINPID
+Restart=on-failure
+RestartSec=5
+LimitNOFILE=infinity
+LimitNPROC=infinity
+LimitCORE=infinity
+Delegate=yes
+KillMode=process
+[Install]
+WantedBy=multi-user.target' > /etc/systemd/system/docker.service
+
+  echo "[INFO] generate docker config file"
+  echo '{
+  "registry-mirrors": [
+    "https://dockerhub.azk8s.cn",
+    "https://docker.mirrors.ustc.edu.cn",
+    "http://hub-mirror.c.163.com"
+  ],
+  "max-concurrent-downloads": 10,
+  "log-driver": "json-file",
+  "log-level": "warn",
+  "log-opts": {
+    "max-size": "10m",
+    "max-file": "3"
+    },
+  "data-root": "/var/lib/docker"
+}' > /etc/docker/daemon.json
+
+  echo "[INFO] enable and start docker"
+  systemctl enable docker
+  systemctl daemon-reload && systemctl restart docker
+}
+
+function get_kubeasz() {
+  if [ -d "/etc/ansible/roles/kube-node" ];then
+    echo "[WARN] kubeasz already Initialized."
+  else
+    echo "[INFO] downloading kubeasz $KUBEASZ_VER"
+    rm -rf /etc/ansible
+    docker pull easzlab/kubeasz:$KUBEASZ_VER
+    echo "[INFO] run a temporary container"
+    docker run -d --name temp_easz easzlab/kubeasz:$KUBEASZ_VER
+    echo "[INFO] init kubeasz code"
+    docker cp temp_easz:/etc/ansible /etc/ansible
+    echo "[INFO] stop&remove temporary container"
+    docker rm -f temp_easz
+  fi
+}
+
+function get_k8s_bin() {
+  if [ -f "/etc/ansible/bin/kubelet" ];then
+    echo "[WARN] kubernetes:$K8S_BIN_VER binaries already existed."
+  else
+    echo "[INFO] downloading kubernetes:$K8S_BIN_VER binaries"
+    docker pull easzlab/kubeasz-k8s-bin:$K8S_BIN_VER
+    echo "[INFO] run a temporary container"
+    docker run -d --name temp_k8s_bin easzlab/kubeasz-k8s-bin:$K8S_BIN_VER
+    echo "[INFO] cp k8s binaries"
+    docker cp temp_k8s_bin:/k8s /k8s_bin && mv /k8s_bin/* /etc/ansible/bin
+    echo "[INFO] stop&remove temporary container"
+    docker rm -f temp_k8s_bin
+  fi
+}
+
+function get_ext_bin() {
+  if [ -f "/etc/ansible/bin/etcdctl" ];then
+    echo "[WARN] extral binaries already existed."
+  else
+    echo "[INFO] downloading extral binaries kubeasz-ext-bin:$EXT_BIN_VER"
+    docker pull easzlab/kubeasz-ext-bin:$EXT_BIN_VER
+    echo "[INFO] run a temporary container"
+    docker run -d --name temp_ext_bin easzlab/kubeasz-ext-bin:$EXT_BIN_VER
+    echo "[INFO] cp extral binaries"
+    docker cp temp_ext_bin:/extra /extra_bin && mv /extra_bin/* /etc/ansible/bin
+    echo "[INFO] stop&remove temporary container"
+    docker rm -f temp_ext_bin
+    chmod +x /etc/ansible/bin/*
+  fi
+}
+
+function get_offline_image() {
+  
+  calicoVer=v3.4.4
+  corednsVer=1.5.0
+  dashboardVer=v1.10.1
+  flannelVer=v0.11.0-amd64
+  heapsterVer=v1.5.4
+  metricsVer=v0.3.2
+  pauseVer=3.1
+  traefikVer=v1.7.12
+
+  imageDir=/etc/ansible/down
+  [ -d "$imageDir" ] || { echo "[ERROR] $imageDir not existed!"; exit 1; }
+  
+  if [ ! -f "$imageDir/calico_${calicoVer}.tar" ];then
+    docker pull calico/cni:$calicoVer
+    docker pull calico/kube-controllers:$calicoVer
+    docker pull calico/node:$calicoVer
+    docker save -o $imageDir/calico_${calicoVer}.tar calico/cni:$calicoVer calico/kube-controllers:$calicoVer calico/node:$calicoVer
+  fi
+  if [ ! -f "$imageDir/coredns_${corednsVer}.tar" ];then
+    docker pull coredns/coredns:$corednsVer
+    docker save -o $imageDir/coredns_${corednsVer}.tar coredns/coredns:$corednsVer
+  fi
+  if [ ! -f "$imageDir/dashboard_${dashboardVer}.tar" ];then
+    docker pull mirrorgooglecontainers/kubernetes-dashboard-amd64:$dashboardVer
+    docker save -o $imageDir/dashboard_${dashboardVer}.tar mirrorgooglecontainers/kubernetes-dashboard-amd64:$dashboardVer
+  fi
+  if [ ! -f "$imageDir/flannel_${flannelVer}.tar" ];then
+    docker pull easzlab/flannel:$flannelVer
+    docker save -o $imageDir/flannel_${flannelVer}.tar easzlab/flannel:$flannelVer
+  fi
+  if [ ! -f "$imageDir/heapster_${heapsterVer}.tar" ];then
+    docker pull mirrorgooglecontainers/heapster-amd64:$heapsterVer
+    docker save -o $imageDir/heapster_${heapsterVer}.tar mirrorgooglecontainers/heapster-amd64:$heapsterVer
+  fi
+  if [ ! -f "$imageDir/metrics-server_${metricsVer}.tar" ];then
+    docker pull mirrorgooglecontainers/metrics-server-amd64:$metricsVer
+    docker save -o $imageDir/metrics-server_${metricsVer}.tar mirrorgooglecontainers/metrics-server-amd64:$metricsVer
+  fi
+  if [ ! -f "$imageDir/pause_${pauseVer}.tar" ];then
+    docker pull mirrorgooglecontainers/pause-amd64:$pauseVer
+    docker save -o $imageDir/pause_${pauseVer}.tar mirrorgooglecontainers/pause-amd64:$pauseVer
+  fi
+  if [ ! -f "$imageDir/traefik_${traefikVer}.tar" ];then
+    docker pull traefik:$traefikVer
+    docker save -o $imageDir/traefik_${traefikVer}.tar traefik:$traefikVer
+  fi
+}
+
+function download_all() {
+  install_docker
+  get_kubeasz
+  get_k8s_bin
+  get_ext_bin
+  get_offline_image
+}
+
+function start_kubeasz_docker() {
+  if [ ! -d "/etc/ansible/roles/kube-node" ];then
+    echo "[ERROR] not initialized. try 'easzup -D' first."
+    exit 1
+  fi
+
+  # get host's IP
+  host_if=$(ip route|grep default|cut -d' ' -f5)
+  host_ip=$(ip a|grep $host_if|awk 'NR==2{print $2}'|cut -d'/' -f1)
+  echo "[INFO] get host IP: $host_ip"
+  
+  # run kubeasz docker container
+  echo "[INFO] run kubeasz in a container"
+  docker run --detach \
+      --name kubeasz \
+      --restart always \
+      --env HOST_IP=$host_ip \
+      --volume /etc/ansible:/etc/ansible \
+      --volume /root/.kube:/root/.kube \
+      --volume /root/.ssh/id_rsa:/root/.ssh/id_rsa:ro \
+      --volume /root/.ssh/id_rsa.pub:/root/.ssh/id_rsa.pub:ro \
+      --volume /root/.ssh/known_hosts:/root/.ssh/known_hosts:ro \
+      easzlab/kubeasz:$KUBEASZ_VER
+}
+
+function clean_container() {
+ echo "[INFO] clean all running containers"
+ docker ps -a|awk 'NR>1{print $1}'|xargs docker rm -f 
+} 
+
+function usage() {
+  cat <<EOF
+Usage: $0 [options] [args]
+  option: -{DdekSz}
+    -C         stop&clean all containers
+    -D         download all into /etc/ansible
+    -S         start kubeasz in a container
+    -d <ver>   set docker-ce version, default 18.09.6 
+    -e <ver>   set kubeasz-ext-bin version, default 0.3.0
+    -k <ver>   set kubeasz-k8s-bin version, default v1.14.3
+    -z <ver>   set kubeasz version, default 1.3.0
+  
+see more at https://github.com/kubeasz/dockerfiles
+EOF
+} 
+
+function process_cmd() {
+    echo -e "[INFO] \033[33mAction begin\033[0m : $ACTION"
+    $ACTION || { echo -e "[ERROR] \033[31mAction failed\033[0m : $ACTION"; return 1; }
+    echo -e "[INFO] \033[32mAction successed\033[0m : $ACTION"
+}
+
+### Main Lines ##################################################
+if readlink /proc/$$/exe | grep -q "dash"; then
+  echo "[ERROR] This script needs to be run with bash, not sh"
+  exit 1
+fi
+
+if [[ "$EUID" -ne 0 ]]; then
+  echo "[ERROR] Sorry, you need to run this as root"
+  exit 1
+fi
+
+[ "$#" -gt 0 ] || { usage >&2; exit 2; }
+
+# default version, can be overridden by cmd line options
+export DOCKER_VER=18.09.6
+export KUBEASZ_VER=1.2.0
+export K8S_BIN_VER=v1.14.3
+export EXT_BIN_VER=0.3.0
+
+ACTION=""
+
+while getopts "CDSd:e:k:z:" OPTION; do
+    case $OPTION in
+      C)
+        ACTION="clean_container"
+        ;;
+      D)
+        ACTION="download_all"
+        ;;
+      S)
+        ACTION="start_kubeasz_docker"
+        ;;
+      d)
+        export DOCKER_VER=$OPTARG
+        ;;
+      e)
+        export EXT_BIN_VER=$OPTARG
+        ;;
+      k)
+        export K8S_BIN_VER=$OPTARG
+        ;;
+      z)
+        export KUBEASZ_VER=$OPTARG
+        ;;
+      ?)
+        usage
+        exit 1
+        ;;
+    esac
+done
+
+process_cmd
diff --git a/tools/kubeasz-docker b/tools/kubeasz-docker
deleted file mode 100755
index b8d4824..0000000
--- a/tools/kubeasz-docker
+++ /dev/null
@@ -1,72 +0,0 @@
-#!/bin/bash
-
-set -o nounset
-set -o errexit
-
-function usage() {
-  cat <<EOF
-Usage: 
-  kubeasz-docker start <kubeasz_ver>    To start a kubeasz(tagged) container
-  kubeasz-docker clean                  To stop and remove all running containers
-
-EOF
-} 
-
-function start_kubeasz_docker() {
-  # kubeasz docker version
-  KUBEASZ_DOCKER_VER=jmgao1983/kubeasz:$1
-  echo "[INFO] VERSION $KUBEASZ_DOCKER_VER"
-  
-  # init host dir
-  if [ -d "/etc/ansible/roles/" ];then
-    echo "[WARN] aleady Initialized."
-  else
-    rm -rf /etc/ansible
-    echo "[INFO] run a temporary container"
-    docker run -d --name temp_easz $KUBEASZ_DOCKER_VER
-    echo "[INFO] init host kubeasz directory"
-    docker cp temp_easz:/etc/ansible /etc/ansible
-    echo "[INFO] stop&remove temporary container"
-    docker rm -f temp_easz
-  fi
-  
-  # get host's IP
-  host_if=$(ip route|grep default|cut -d' ' -f5)
-  host_ip=$(ip a|grep $host_if|awk 'NR==2{print $2}'|cut -d'/' -f1)
-  echo "[INFO] get host IP: $host_ip"
-  
-  # run kubeasz docker container
-  echo "[INFO] run kubeasz in a container"
-  docker run --detach \
-      --name kubeasz \
-      --restart always \
-      --env HOST_IP=$host_ip \
-      --volume /etc/ansible:/etc/ansible \
-      --volume /root/.kube:/root/.kube \
-      --volume /root/.ssh/id_rsa:/root/.ssh/id_rsa:ro \
-      --volume /root/.ssh/id_rsa.pub:/root/.ssh/id_rsa.pub:ro \
-      --volume /root/.ssh/known_hosts:/root/.ssh/known_hosts:ro \
-      $KUBEASZ_DOCKER_VER
-}
-
-function clean_container() {
- echo "[INFO] clean all running containers"
- docker ps -a|awk 'NR>1{print $1}'|xargs docker rm -f 
-} 
-
-[ "$#" -gt 0 ] || { start_kubeasz_docker stable; exit 0; }
-
-case "$1" in
-
-    (start)
-        [ "$#" -gt 1 ] || { usage >&2; exit 2; } 
-        start_kubeasz_docker $2
-        ;;
-    (clean)
-        clean_container
-        ;;
-    (*)
-        usage
-        exit 0
-        ;;
-esac