diff --git a/scripts/install_iomesh_coreos.sh b/scripts/install_iomesh_coreos.sh
deleted file mode 100755
index f9389d9b..00000000
--- a/scripts/install_iomesh_coreos.sh
+++ /dev/null
@@ -1,240 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright (C) 2021 IOMesh
-# All rights reserved.
-
-# install_iomesh.sh: install iomesh in your kubernetes cluster
-
-# You must be prepared as follows before run install_iomesh.sh:
-#
-# 1. IOMESH_DATA_CIDR MUST be set as environment variable, According to the
-#    network environment of your k8s cluster, for an example:
-#
-#        export IOMESH_DATA_CIDR=192.168.1.0/20
-#
-#    See more detail about IOMESH_DATA_CIDR in http://iomesh.com/docs/next/installation/setup-iomesh-storage
-#
-# 2. Since IOMesh relies on some mirrors from docker.io, gcr.io, quay.io, etc.
-#    if it is the first time to install IOMesh, your network environment MUST
-#    be able to access these websites quickly
-#
-
-readonly IOMESH_OPERATOR_NAMESPACE="iomesh-system"
-readonly IOMESH_OPERATOR_CHART="iomesh/operator"
-readonly IOMESH_OPERATOR_RELEASE="operator"
-
-readonly IOMESH_NAMESPACE="iomesh-system"
-readonly IOMESH_CHART="iomesh/iomesh"
-readonly IOMESH_RELEASE="iomesh"
-
-readonly IOMESH_CSI_NAMESPACE="iomesh-system"
-readonly IOMESH_CSI_CHART="iomesh/csi-driver"
-readonly IOMESH_CSI_RELEASE="csi-driver"
-readonly MOUNT_ISCSI_LOCK="false"
-
-readonly ZK_REPLICAS=3
-readonly META_REPLICAS=3
-readonly CHUNK_REPLICAS=3
-readonly CSI_CONTROLLER_REPLICAS=3
-
-HAS_HELM="$(type "helm" &> /dev/null && echo true || echo false)"
-HAS_KUBECTL="$(type "kubectl" &> /dev/null && echo true || echo false)"
-HAS_CURL="$(type "curl" &> /dev/null && echo true || echo false)"
-HAS_UNZIP="$(type "unzip" &> /dev/null && echo true || echo false)"
-
-info() {
-	echo "[Info][$(date +'%Y-%m-%dT%H:%M:%S%z')]: $@" >&2
-}
-
-cleanup() {
-	rm -rf release-2.1.zip &> /dev/null
-	rm -rf external-snapshotter-release-2.1 &> /dev/null
-	rm -rf get_helm.sh &> /dev/null
-}
-
-error() {
-	echo "[Error][$(date +'%Y-%m-%dT%H:%M:%S%z')]: $@" >&2
-	cleanup
-	exit 1
-}
-
-
-install_snapshot_controller() {
-	# if snapshot-controller already installed, just return
-	if kubectl get statefulset snapshot-controller -n kube-system &> /dev/null ; then
-		return
-	fi
-	info "start install snapshot controller."
-
-	if ! curl -LOs https://github.com/kubernetes-csi/external-snapshotter/archive/release-2.1.zip ; then
-		error "fail to external-snapshotter, please confirm whether the connection to github.com is ok?"
-	fi
-	unzip release-2.1.zip &> /dev/null
-	kubectl create -f external-snapshotter-release-2.1/config/crd
-	kubectl apply -f external-snapshotter-release-2.1/deploy/kubernetes/snapshot-controller -n kube-system
-	kubectl wait pod -l app=snapshot-controller --for condition=ready -n kube-system --timeout -1s
-	info "snapshot controller install completed"
-}
-
-install_kubectl() {
-	info "start install kubectl"
-	if ! curl -LOs "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" ; then
-		error "fail to get kubectl, please confirm whether the connection to dl.k8s.io is ok?"
-	fi
-	if ! sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl ; then
-		error "install kubectl fail"
-	fi
-	info "kubectl install completed"
-}
-
-install_helm() {
-	info "start install helm"
-	if ! curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 ; then
-		error "fail to get helm installed script, please confirm whether the connection to raw.githubusercontent.com is ok?"
-	fi
-	chmod 700 get_helm.sh
-	if ! ./get_helm.sh ; then
-		error "fail to get helm when running get_helm.sh"
-	fi
-	info "helm install completed"
-}
-
-verify_supported() {
-	if  [[ -z "${IOMESH_DATA_CIDR}" ]] ; then
-		error "IOMESH_DATA_CIDR MUST set in environment variable."
-	fi
-
-	if [[ "${HAS_CURL}" != "true" ]]; then
-		error "curl is required"
-	fi
-
-	if [[ "${HAS_UNZIP}" != "true" ]]; then
-		error "unzip is required"
-	fi
-
-	if [[ "${HAS_HELM}" != "true" ]]; then
-		install_helm
-	fi
-
-	if [[ "${HAS_KUBECTL}" != "true" ]]; then
-		install_kubectl
-	fi
-}
-
-install_iomesh_operator() {
-	# check if operator already installed
-	if helm status ${IOMESH_OPERATOR_RELEASE} -n ${IOMESH_OPERATOR_NAMESPACE} &> /dev/null ; then
-		error "IOMesh operator already installed. Use helm remove it first"
-	fi
-	info "install IOMesh operator, it may take a few minutes depending on your network situation"
-	helm install ${IOMESH_OPERATOR_RELEASE} ${IOMESH_OPERATOR_CHART} \
-	       	--namespace ${IOMESH_OPERATOR_NAMESPACE} \
-	       	--create-namespace \
-	       	--set hostpath-provisioner.pvDir=/mnt/iomesh/hostpath \
-	       	--wait 2> /dev/null
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh operator."
-	fi
-}
-
-install_iomesh() {
-	# check if iomesh already installed
-	if helm status ${IOMESH_RELEASE} -n ${IOMESH_NAMESPACE} &> /dev/null ; then
-		error "IOMesh already installed. Use helm remove it first"
-	fi
-	info "install IOMesh, it may take a few minutes depending on your network situation"
-	helm install ${IOMESH_RELEASE} ${IOMESH_CHART} \
-	       	--namespace ${IOMESH_NAMESPACE} \
-	       	--create-namespace \
-	       	--set chunk.dataCIDR="${IOMESH_DATA_CIDR}" \
-	       	--set meta.replicaCount="${META_REPLICAS}" \
-	       	--set zookeeper.replicas="${ZK_REPLICAS}" 2> /dev/null
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh."
-	fi
-
-	#TODO(ziyin): check more resources after install
-	timeout=200 # 200s
-	while true ; do
-		if kubectl get pod ${IOMESH_RELEASE}-chunk-0 -n ${IOMESH_NAMESPACE} &> /dev/null ; then
-			break
-		fi
-
-		sleep 5
-		timeout=$(( timeout-5 ))
-		if [[ $timeout -le 0 ]] ; then
-			error "IOMesh resources not all ready, use kubectl to check reason"
-		fi
-	done
-
-	kubectl wait pod/${IOMESH_RELEASE}-chunk-0 --for condition=ready  -n ${IOMESH_NAMESPACE} --timeout=600s
-	if [[ $? -ne 0 ]] ; then
-		error "IOMesh resources not all ready, use kubectl to check reason"
-	fi
-}
-
-install_iomesh_csi() {
-	# check if iomesh already installed
-	if helm status ${IOMESH_CSI_RELEASE} -n ${IOMESH_CSI_NAMESPACE} &> /dev/null ; then
-		error "IOMesh csi driver already installed. Use helm remove it first"
-	fi
-
-	info "install IOMesh csi-driver, it may take a few minutes depending on your network situation"
-	meta_proxy_addr=$(kubectl get service iomesh-access -n ${IOMESH_NAMESPACE} | egrep -o "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*")
-	if [[ ! "{$meta_proxy_addr}" =~ [0-9]*\.[0-9]*\.[0-9]*\.[0-9]* ]] ; then
-		error "fail to get meta proxy addr for csi, IOMesh installed corrently?"
-	fi
-
-	helm install ${IOMESH_CSI_RELEASE} ${IOMESH_CSI_CHART} \
-	       	--namespace ${IOMESH_CSI_NAMESPACE} \
-	       	--create-namespace \
-		--set driver.clusterID="${IOMESH_RELEASE}" \
-		--set driver.metaAddr="${meta_proxy_addr}":10206 \
-		--set driver.controller.replicas="${CSI_CONTROLLER_REPLICAS}" \
-		--set driver.node.mountIscsiLock="${MOUNT_ISCSI_LOCK}" \
-	       	--wait 2> /dev/null
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh csi."
-	fi
-}
-
-helm_repo_init() {
-	helm repo add iomesh http://iomesh.com/charts &> /dev/null
-	info "start update helm repo"
-	if ! helm repo update 2> /dev/null ; then
-		error "helm update repo error."
-	fi
-}
-
-############################################
-# Check if helm release deployment correctly
-# Arguments:
-#   release
-#   namespace
-############################################
-release_deployed_correctly() {
-	helm status "${1}" -n "${2}" | grep deployed &> /dev/null
-	if [[ $? -ne 0 ]] ; then
-		error "${1} installed fail, check log use helm and kubectl."
-	fi
-}
-
-verify_installed() {
-	release_deployed_correctly "${IOMESH_OPERATOR_RELEASE}" "${IOMESH_OPERATOR_NAMESPACE}"
-	release_deployed_correctly "${IOMESH_RELEASE}" "${IOMESH_NAMESPACE}"
-	release_deployed_correctly "${IOMESH_CSI_RELEASE}" "${IOMESH_CSI_NAMESPACE}"
-	info "IOMesh Deployment Completed!"
-}
-
-main() {
-	verify_supported
-	helm_repo_init
-	install_snapshot_controller
-	install_iomesh_operator
-	install_iomesh
-	install_iomesh_csi
-	verify_installed
-	cleanup
-}
-
-main
diff --git a/scripts/install_iomesh_el7.sh b/scripts/install_iomesh_el7.sh
deleted file mode 100755
index cb25aeb4..00000000
--- a/scripts/install_iomesh_el7.sh
+++ /dev/null
@@ -1,236 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright (C) 2021 IOMesh
-# All rights reserved.
-
-# install_iomesh.sh: install iomesh in your kubernetes cluster
-
-# You must be prepared as follows before run install_iomesh.sh:
-#
-# 1. IOMESH_DATA_CIDR MUST be set as environment variable, According to the
-#    network environment of your k8s cluster, for an example:
-#
-#        export IOMESH_DATA_CIDR=192.168.1.0/20
-#
-#    See more detail about IOMESH_DATA_CIDR in http://iomesh.com/docs/next/installation/setup-iomesh-storage
-#
-# 2. Since IOMesh relies on some mirrors from docker.io, gcr.io, quay.io, etc.
-#    if it is the first time to install IOMesh, your network environment MUST
-#    be able to access these websites quickly
-#
-
-readonly IOMESH_OPERATOR_NAMESPACE="iomesh-system"
-readonly IOMESH_OPERATOR_CHART="iomesh/operator"
-readonly IOMESH_OPERATOR_RELEASE="operator"
-
-readonly IOMESH_NAMESPACE="iomesh-system"
-readonly IOMESH_CHART="iomesh/iomesh"
-readonly IOMESH_RELEASE="iomesh"
-
-readonly IOMESH_CSI_NAMESPACE="iomesh-system"
-readonly IOMESH_CSI_CHART="iomesh/csi-driver"
-readonly IOMESH_CSI_RELEASE="csi-driver"
-readonly MOUNT_ISCSI_LOCK="false"
-
-readonly ZK_REPLICAS=3
-readonly META_REPLICAS=3
-readonly CHUNK_REPLICAS=3
-readonly CSI_CONTROLLER_REPLICAS=3
-
-HAS_HELM="$(type "helm" &> /dev/null && echo true || echo false)"
-HAS_KUBECTL="$(type "kubectl" &> /dev/null && echo true || echo false)"
-HAS_CURL="$(type "curl" &> /dev/null && echo true || echo false)"
-
-info() {
-	echo "[Info][$(date +'%Y-%m-%dT%H:%M:%S%z')]: $@" >&2
-}
-
-cleanup() {
-	rm -rf release-2.1.tar.gz &> /dev/null
-	rm -rf external-snapshotter-release-2.1 &> /dev/null
-	rm -rf get_helm.sh &> /dev/null
-}
-
-error() {
-	echo "[Error][$(date +'%Y-%m-%dT%H:%M:%S%z')]: $@" >&2
-	cleanup
-	exit 1
-}
-
-
-install_snapshot_controller() {
-	# if snapshot-controller already installed, just return
-	if kubectl get statefulset snapshot-controller -n kube-system &> /dev/null ; then
-		return
-	fi
-	info "start install snapshot controller."
-
-	if ! curl -LOs https://github.com/kubernetes-csi/external-snapshotter/archive/release-2.1.tar.gz ; then
-		error "fail to external-snapshotter, please confirm whether the connection to github.com is ok?"
-	fi
-	tar -xf release-2.1.tar.gz &> /dev/null
-	kubectl create -f external-snapshotter-release-2.1/config/crd
-	sed -i  "s/namespace:\ default/namespace:\ kube-system/g" external-snapshotter-release-2.1/deploy/kubernetes/snapshot-controller/*
-	kubectl apply -f external-snapshotter-release-2.1/deploy/kubernetes/snapshot-controller -n kube-system
-	kubectl wait pod -l app=snapshot-controller --for condition=ready -n kube-system --timeout -1s
-	info "snapshot controller install completed"
-}
-
-install_kubectl() {
-	info "start install kubectl"
-	if ! curl -LOs "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" ; then
-		error "fail to get kubectl, please confirm whether the connection to dl.k8s.io is ok?"
-	fi
-	if ! sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl ; then
-		error "install kubectl fail"
-	fi
-	info "kubectl install completed"
-}
-
-install_helm() {
-	info "start install helm"
-	if ! curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 ; then
-		error "fail to get helm installed script, please confirm whether the connection to raw.githubusercontent.com is ok?"
-	fi
-	chmod 700 get_helm.sh
-	if ! ./get_helm.sh ; then
-		error "fail to get helm when running get_helm.sh"
-	fi
-	info "helm install completed"
-}
-
-verify_supported() {
-	if  [[ -z "${IOMESH_DATA_CIDR}" ]] ; then
-		error "IOMESH_DATA_CIDR MUST set in environment variable."
-	fi
-
-	if [[ "${HAS_CURL}" != "true" ]]; then
-		error "curl is required"
-	fi
-
-	if [[ "${HAS_HELM}" != "true" ]]; then
-		install_helm
-	fi
-
-	if [[ "${HAS_KUBECTL}" != "true" ]]; then
-		install_kubectl
-	fi
-}
-
-install_iomesh_operator() {
-	# check if operator already installed
-	if helm status ${IOMESH_OPERATOR_RELEASE} -n ${IOMESH_OPERATOR_NAMESPACE} &> /dev/null ; then
-		error "IOMesh operator already installed. Use helm remove it first"
-	fi
-	info "install IOMesh operator, it may take a few minutes depending on your network situation"
-	helm install ${IOMESH_OPERATOR_RELEASE} ${IOMESH_OPERATOR_CHART} \
-	       	--namespace ${IOMESH_OPERATOR_NAMESPACE} \
-	       	--create-namespace \
-	       	--set hostpath-provisioner.pvDir=/mnt/iomesh/hostpath \
-	       	--wait  2>&1 | grep -vi "warning"
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh operator."
-	fi
-}
-
-install_iomesh() {
-	# check if iomesh already installed
-	if helm status ${IOMESH_RELEASE} -n ${IOMESH_NAMESPACE} &> /dev/null ; then
-		error "IOMesh already installed. Use helm remove it first"
-	fi
-	info "install IOMesh, it may take a few minutes depending on your network situation"
-	helm install ${IOMESH_RELEASE} ${IOMESH_CHART} \
-	       	--namespace ${IOMESH_NAMESPACE} \
-	       	--create-namespace \
-	       	--set chunk.dataCIDR="${IOMESH_DATA_CIDR}" \
-	       	--set meta.replicaCount="${META_REPLICAS}" \
-	       	--set zookeeper.replicas="${ZK_REPLICAS}" 2>&1 | grep -vi "warning"
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh."
-	fi
-
-	#TODO(ziyin): check more resources after install
-	timeout=400 # 400s
-	while true ; do
-		if kubectl get pod ${IOMESH_RELEASE}-chunk-0 -n ${IOMESH_NAMESPACE} &> /dev/null ; then
-			break
-		fi
-
-		sleep 5
-		timeout=$(( timeout-5 ))
-		if [[ $timeout -le 0 ]] ; then
-			error "IOMesh resources not all ready, use kubectl to check reason"
-		fi
-	done
-
-	kubectl wait pod/${IOMESH_RELEASE}-chunk-0 --for condition=ready  -n ${IOMESH_NAMESPACE} --timeout=600s
-	if [[ $? -ne 0 ]] ; then
-		error "IOMesh resources not all ready, use kubectl to check reason"
-	fi
-}
-
-install_iomesh_csi() {
-	# check if iomesh already installed
-	if helm status ${IOMESH_CSI_RELEASE} -n ${IOMESH_CSI_NAMESPACE} &> /dev/null ; then
-		error "IOMesh csi driver already installed. Use helm remove it first"
-	fi
-
-	info "install IOMesh csi-driver, it may take a few minutes depending on your network situation"
-	meta_proxy_addr=$(kubectl get service iomesh-access -n ${IOMESH_NAMESPACE} | egrep -o "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*")
-	if [[ ! "{$meta_proxy_addr}" =~ [0-9]*\.[0-9]*\.[0-9]*\.[0-9]* ]] ; then
-		error "fail to get meta proxy addr for csi, IOMesh installed corrently?"
-	fi
-
-	helm install ${IOMESH_CSI_RELEASE} ${IOMESH_CSI_CHART} \
-	       	--namespace ${IOMESH_CSI_NAMESPACE} \
-	       	--create-namespace \
-		--set driver.clusterID="${IOMESH_RELEASE}" \
-		--set driver.metaAddr="${meta_proxy_addr}":10206 \
-		--set driver.controller.replicas="${CSI_CONTROLLER_REPLICAS}" \
-		--set driver.node.mountIscsiLock="${MOUNT_ISCSI_LOCK}" \
-	       	--wait 2>&1 | grep -vi "warning"
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh csi."
-	fi
-}
-
-helm_repo_init() {
-	helm repo add iomesh http://iomesh.com/charts &> /dev/null
-	info "start update helm repo"
-	if ! helm repo update 2> /dev/null ; then
-		error "helm update repo error."
-	fi
-}
-
-############################################
-# Check if helm release deployment correctly
-# Arguments:
-#   release
-#   namespace
-############################################
-release_deployed_correctly() {
-	helm status "${1}" -n "${2}" | grep deployed &> /dev/null
-	if [[ $? -ne 0 ]] ; then
-		error "${1} installed fail, check log use helm and kubectl."
-	fi
-}
-
-verify_installed() {
-	release_deployed_correctly "${IOMESH_OPERATOR_RELEASE}" "${IOMESH_OPERATOR_NAMESPACE}"
-	release_deployed_correctly "${IOMESH_RELEASE}" "${IOMESH_NAMESPACE}"
-	release_deployed_correctly "${IOMESH_CSI_RELEASE}" "${IOMESH_CSI_NAMESPACE}"
-	info "IOMesh Deployment Completed!"
-}
-
-main() {
-	verify_supported
-	helm_repo_init
-	install_snapshot_controller
-	install_iomesh_operator
-	install_iomesh
-	install_iomesh_csi
-	verify_installed
-	cleanup
-}
-
-main
diff --git a/scripts/install_iomesh_el8.sh b/scripts/install_iomesh_el8.sh
deleted file mode 100755
index fd50385b..00000000
--- a/scripts/install_iomesh_el8.sh
+++ /dev/null
@@ -1,236 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright (C) 2021 IOMesh
-# All rights reserved.
-
-# install_iomesh.sh: install iomesh in your kubernetes cluster
-
-# You must be prepared as follows before run install_iomesh.sh:
-#
-# 1. IOMESH_DATA_CIDR MUST be set as environment variable, According to the
-#    network environment of your k8s cluster, for an example:
-#
-#        export IOMESH_DATA_CIDR=192.168.1.0/20
-#
-#    See more detail about IOMESH_DATA_CIDR in http://iomesh.com/docs/next/installation/setup-iomesh-storage
-#
-# 2. Since IOMesh relies on some mirrors from docker.io, gcr.io, quay.io, etc.
-#    if it is the first time to install IOMesh, your network environment MUST
-#    be able to access these websites quickly
-#
-
-readonly IOMESH_OPERATOR_NAMESPACE="iomesh-system"
-readonly IOMESH_OPERATOR_CHART="iomesh/operator"
-readonly IOMESH_OPERATOR_RELEASE="operator"
-
-readonly IOMESH_NAMESPACE="iomesh-system"
-readonly IOMESH_CHART="iomesh/iomesh"
-readonly IOMESH_RELEASE="iomesh"
-
-readonly IOMESH_CSI_NAMESPACE="iomesh-system"
-readonly IOMESH_CSI_CHART="iomesh/csi-driver"
-readonly IOMESH_CSI_RELEASE="csi-driver"
-readonly MOUNT_ISCSI_LOCK="true"
-
-readonly ZK_REPLICAS=3
-readonly META_REPLICAS=3
-readonly CHUNK_REPLICAS=3
-readonly CSI_CONTROLLER_REPLICAS=3
-
-HAS_HELM="$(type "helm" &> /dev/null && echo true || echo false)"
-HAS_KUBECTL="$(type "kubectl" &> /dev/null && echo true || echo false)"
-HAS_CURL="$(type "curl" &> /dev/null && echo true || echo false)"
-
-info() {
-	echo "[Info][$(date +'%Y-%m-%dT%H:%M:%S%z')]: $@" >&2
-}
-
-cleanup() {
-	rm -rf release-2.1.tar.gz &> /dev/null
-	rm -rf external-snapshotter-release-2.1 &> /dev/null
-	rm -rf get_helm.sh &> /dev/null
-}
-
-error() {
-	echo "[Error][$(date +'%Y-%m-%dT%H:%M:%S%z')]: $@" >&2
-	cleanup
-	exit 1
-}
-
-
-install_snapshot_controller() {
-	# if snapshot-controller already installed, just return
-	if kubectl get statefulset snapshot-controller -n kube-system &> /dev/null ; then
-		return
-	fi
-	info "start install snapshot controller."
-
-	if ! curl -LOs https://github.com/kubernetes-csi/external-snapshotter/archive/release-2.1.tar.gz ; then
-		error "fail to external-snapshotter, please confirm whether the connection to github.com is ok?"
-	fi
-	tar -xf release-2.1.tar.gz &> /dev/null
-	kubectl create -f external-snapshotter-release-2.1/config/crd
-	sed -i  "s/namespace:\ default/namespace:\ kube-system/g" external-snapshotter-release-2.1/deploy/kubernetes/snapshot-controller/*
-	kubectl apply -f external-snapshotter-release-2.1/deploy/kubernetes/snapshot-controller -n kube-system
-	kubectl wait pod -l app=snapshot-controller --for condition=ready -n kube-system --timeout -1s
-	info "snapshot controller install completed"
-}
-
-install_kubectl() {
-	info "start install kubectl"
-	if ! curl -LOs "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" ; then
-		error "fail to get kubectl, please confirm whether the connection to dl.k8s.io is ok?"
-	fi
-	if ! sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl ; then
-		error "install kubectl fail"
-	fi
-	info "kubectl install completed"
-}
-
-install_helm() {
-	info "start install helm"
-	if ! curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 ; then
-		error "fail to get helm installed script, please confirm whether the connection to raw.githubusercontent.com is ok?"
-	fi
-	chmod 700 get_helm.sh
-	if ! ./get_helm.sh ; then
-		error "fail to get helm when running get_helm.sh"
-	fi
-	info "helm install completed"
-}
-
-verify_supported() {
-	if  [[ -z "${IOMESH_DATA_CIDR}" ]] ; then
-		error "IOMESH_DATA_CIDR MUST set in environment variable."
-	fi
-
-	if [[ "${HAS_CURL}" != "true" ]]; then
-		error "curl is required"
-	fi
-
-	if [[ "${HAS_HELM}" != "true" ]]; then
-		install_helm
-	fi
-
-	if [[ "${HAS_KUBECTL}" != "true" ]]; then
-		install_kubectl
-	fi
-}
-
-install_iomesh_operator() {
-	# check if operator already installed
-	if helm status ${IOMESH_OPERATOR_RELEASE} -n ${IOMESH_OPERATOR_NAMESPACE} &> /dev/null ; then
-		error "IOMesh operator already installed. Use helm remove it first"
-	fi
-	info "install IOMesh operator, it may take a few minutes depending on your network situation"
-	helm install ${IOMESH_OPERATOR_RELEASE} ${IOMESH_OPERATOR_CHART} \
-	       	--namespace ${IOMESH_OPERATOR_NAMESPACE} \
-	       	--create-namespace \
-	       	--set hostpath-provisioner.pvDir=/mnt/iomesh/hostpath \
-	       	--wait  2>&1 | grep -vi "warning"
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh operator."
-	fi
-}
-
-install_iomesh() {
-	# check if iomesh already installed
-	if helm status ${IOMESH_RELEASE} -n ${IOMESH_NAMESPACE} &> /dev/null ; then
-		error "IOMesh already installed. Use helm remove it first"
-	fi
-	info "install IOMesh, it may take a few minutes depending on your network situation"
-	helm install ${IOMESH_RELEASE} ${IOMESH_CHART} \
-	       	--namespace ${IOMESH_NAMESPACE} \
-	       	--create-namespace \
-	       	--set chunk.dataCIDR="${IOMESH_DATA_CIDR}" \
-	       	--set meta.replicaCount="${META_REPLICAS}" \
-	       	--set zookeeper.replicas="${ZK_REPLICAS}" 2>&1 | grep -vi "warning"
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh."
-	fi
-
-	#TODO(ziyin): check more resources after install
-	timeout=400 # 400s
-	while true ; do
-		if kubectl get pod ${IOMESH_RELEASE}-chunk-0 -n ${IOMESH_NAMESPACE} &> /dev/null ; then
-			break
-		fi
-
-		sleep 5
-		timeout=$(( timeout-5 ))
-		if [[ $timeout -le 0 ]] ; then
-			error "IOMesh resources not all ready, use kubectl to check reason"
-		fi
-	done
-
-	kubectl wait pod/${IOMESH_RELEASE}-chunk-0 --for condition=ready  -n ${IOMESH_NAMESPACE} --timeout=600s
-	if [[ $? -ne 0 ]] ; then
-		error "IOMesh resources not all ready, use kubectl to check reason"
-	fi
-}
-
-install_iomesh_csi() {
-	# check if iomesh already installed
-	if helm status ${IOMESH_CSI_RELEASE} -n ${IOMESH_CSI_NAMESPACE} &> /dev/null ; then
-		error "IOMesh csi driver already installed. Use helm remove it first"
-	fi
-
-	info "install IOMesh csi-driver, it may take a few minutes depending on your network situation"
-	meta_proxy_addr=$(kubectl get service iomesh-access -n ${IOMESH_NAMESPACE} | egrep -o "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*")
-	if [[ ! "{$meta_proxy_addr}" =~ [0-9]*\.[0-9]*\.[0-9]*\.[0-9]* ]] ; then
-		error "fail to get meta proxy addr for csi, IOMesh installed corrently?"
-	fi
-
-	helm install ${IOMESH_CSI_RELEASE} ${IOMESH_CSI_CHART} \
-	       	--namespace ${IOMESH_CSI_NAMESPACE} \
-	       	--create-namespace \
-		--set driver.clusterID="${IOMESH_RELEASE}" \
-		--set driver.metaAddr="${meta_proxy_addr}":10206 \
-		--set driver.controller.replicas="${CSI_CONTROLLER_REPLICAS}" \
-		--set driver.node.mountIscsiLock="${MOUNT_ISCSI_LOCK}" \
-	       	--wait 2>&1 | grep -vi "warning"
-	if [[ $? -ne 0 ]] ; then
-		error "fail to install IOMesh csi."
-	fi
-}
-
-helm_repo_init() {
-	helm repo add iomesh http://iomesh.com/charts &> /dev/null
-	info "start update helm repo"
-	if ! helm repo update 2> /dev/null ; then
-		error "helm update repo error."
-	fi
-}
-
-############################################
-# Check if helm release deployment correctly
-# Arguments:
-#   release
-#   namespace
-############################################
-release_deployed_correctly() {
-	helm status "${1}" -n "${2}" | grep deployed &> /dev/null
-	if [[ $? -ne 0 ]] ; then
-		error "${1} installed fail, check log use helm and kubectl."
-	fi
-}
-
-verify_installed() {
-	release_deployed_correctly "${IOMESH_OPERATOR_RELEASE}" "${IOMESH_OPERATOR_NAMESPACE}"
-	release_deployed_correctly "${IOMESH_RELEASE}" "${IOMESH_NAMESPACE}"
-	release_deployed_correctly "${IOMESH_CSI_RELEASE}" "${IOMESH_CSI_NAMESPACE}"
-	info "IOMesh Deployment Completed!"
-}
-
-main() {
-	verify_supported
-	helm_repo_init
-	install_snapshot_controller
-	install_iomesh_operator
-	install_iomesh
-	install_iomesh_csi
-	verify_installed
-	cleanup
-}
-
-main