K8S单机版部署

安装etcd、kubernetes

Kubernetes中几乎所有的资源对象（Node、Pod、Replication Controller、Service等）都能通过kubectl工具执行增删改查操作并保存在etcd中持久化存储。因此Kubernetes和etcd密不可分。
可在root权限下，输入如下指令安装etcd和kubernetes

yum install -y etcd kubernetes

#安装过程中会自动安装Docker

查看etcd、kubernetes、docker版本信息

docker --version
etcd --version
kubectl --version

 按顺序启动所有服务(root)

systemctl start etcd
systemctl start docker
systemctl start kube-apiserver
systemctl start kube-controller-manager
systemctl start kube-scheduler
systemctl start kubelet
systemctl start kube-proxy

查看服务运行状态

systemctl status etcd

查看k8s集群情况

kubectl get nodes