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$ systemctl stop firewalld
$ systemctl disable firewalld

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$ yum -y install ntp
$ systemctl start ntpd
$ systemctl enable ntpd

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$ yum -y install etcd kubernetes

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ETCD_NAME=default
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379"

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$ etcdctl mk /coreos.com/network/config '{"Network":"172.17.0.0/16"}'

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API_ADDRESS="--address=0.0.0.0"
KUBE_API_PORT="--port=8080"
KUBELET_PORT="--kubelet_port=10250"
KUBE_ETCD_SERVERS="--etcd_servers=http://10.0.222.2:2379"
KUBE_SERVICE_ADDRESSES="--portal_net=10.254.0.0/16"
KUBE_ADMISSION_CONTROL="--admission_control=NamespaceLifecycle,
NamespaceExists,LimitRanger,SecurityContextDeny,ResourceQuota"
KUBE_API_ARGS=""

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$for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do 
systemctl restart $SERVICES
systemctl enable $SERVICES
systemctl status $SERVICES 
done

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$ yum -y install flannel kubernetes

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FLANNEL_ETCD="http://10.0.222.2:2379"
FLANNEL_ETCD_KEY="/coreos.com/network"
FLANNEL_OPTIONS="--iface=ens3"

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$systemctl restart flanneld
$systemctl enable flanneld
$systemctl status flanneld

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{
"Network": "172.17.0.0/16",
"SubnetLen": 24,
"Backend": {
     "Type": "vxlan",
     "VNI": 7890
     }
 }

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$ curl -L http://10.0.222.2:2379/v2/keys/coreos.com/network/config -XPUT --data-urlencode [email protected]

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KUBE_MASTER="--master=http://10.0.222.2:8080"

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KUBELET_ADDRESS="--address=0.0.0.0"
KUBELET_PORT="--port=10250"
# change the hostname to minion IP address
KUBELET_HOSTNAME="--hostname_override=node1"
KUBELET_API_SERVER="--api_servers=http://10.0.222.2:8080"
KUBELET_ARGS=""

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$ for SERVICES in kube-proxy kubelet docker; do 
systemctl restart $SERVICES
systemctl enable $SERVICES
systemctl status $SERVICES 
done