diff --git a/cluster/ubuntu/config-default.sh b/cluster/ubuntu/config-default.sh
index c83b0b72dcc..b3227f4228f 100755
--- a/cluster/ubuntu/config-default.sh
+++ b/cluster/ubuntu/config-default.sh
@@ -86,8 +86,8 @@ FLANNEL_OTHER_NET_CONFIG=${FLANNEL_OTHER_NET_CONFIG:-""}
 
 export ADMISSION_CONTROL=NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,ResourceQuota
 
-# Path to the config file or directory of files of kubelet
-export KUBELET_CONFIG=${KUBELET_CONFIG:-""}
+# Path to the pod manifest file or directory of files of kubelet
+export KUBELET_POD_MANIFEST_PATH=${KUBELET_POD_MANIFEST_PATH:-""}
 
 # A port range to reserve for services with NodePort visibility
 SERVICE_NODE_PORT_RANGE=${SERVICE_NODE_PORT_RANGE:-"30000-32767"}
@@ -116,9 +116,7 @@ ENABLE_CLUSTER_DNS="${KUBE_ENABLE_CLUSTER_DNS:-true}"
 # DNS_SERVER_IP must be a IP in SERVICE_CLUSTER_IP_RANGE
 DNS_SERVER_IP=${DNS_SERVER_IP:-"192.168.3.10"}
 DNS_DOMAIN=${DNS_DOMAIN:-"cluster.local"}
-
-# Optional: Enable DNS horizontal autoscaler
-ENABLE_DNS_HORIZONTAL_AUTOSCALER="${KUBE_ENABLE_DNS_HORIZONTAL_AUTOSCALER:-false}"
+DNS_REPLICAS=${DNS_REPLICAS:-1}
 
 # Optional: Install Kubernetes UI
 ENABLE_CLUSTER_UI="${KUBE_ENABLE_CLUSTER_UI:-true}"
diff --git a/cluster/ubuntu/util.sh b/cluster/ubuntu/util.sh
index 773d242e5e5..997201609f2 100755
--- a/cluster/ubuntu/util.sh
+++ b/cluster/ubuntu/util.sh
@@ -296,7 +296,7 @@ KUBELET_OPTS="\
  --logtostderr=true \
  --cluster-dns=${3} \
  --cluster-domain=${4} \
- --config=${5} \
+ --pod-manifest-path=${5} \
  --allow-privileged=${6}
  $cni_opts"
 EOF
@@ -558,7 +558,7 @@ function provision-node() {
       '${MASTER_IP}' \
       '${DNS_SERVER_IP}' \
       '${DNS_DOMAIN}' \
-      '${KUBELET_CONFIG}' \
+      '${KUBELET_POD_MANIFEST_PATH}' \
       '${ALLOW_PRIVILEGED}' \
       '${CNI_PLUGIN_CONF}'
     create-kube-proxy-opts \
@@ -660,7 +660,7 @@ function provision-masterandnode() {
       '${MASTER_IP}' \
       '${DNS_SERVER_IP}' \
       '${DNS_DOMAIN}' \
-      '${KUBELET_CONFIG}' \
+      '${KUBELET_POD_MANIFEST_PATH}' \
       '${ALLOW_PRIVILEGED}' \
       '${CNI_PLUGIN_CONF}'
     create-kube-proxy-opts \