前言

KubeKey是go语言开发的一款云原生容器工具，使用 KubeKe可以轻松、高效、灵活地单独或整体安装 Kubernetes 和 KubeSphere。 本节我们体验一下使用KubeKey一键式部署一个k8s集群。

正文

①准备三台centos服务器，内核版本4.15 or later，服务器配置：2核虚拟CPU，4 GB 内存，30GB存储。

服务器配置

name	ip
m1	192.168.23.131
m2	192.168.23.132
m3	192.168.23.133

②安装k8s环境依赖，在每台服务器执行以下命令

命令：yum install -y socat conntrack ebtables ipset

③下载KubeKey工具

//导入环境变量
export KKZONE=cn
//下载kubekey
curl -sfL https://get-kk.kubesphere.io | sh -

④ 使用KubeKey生成一个k8s集群启动文件模板k8s.yaml

命令：./kk create config --with-kubernetes v1.22.1 -f k8s.yaml

⑤ 修改k8s集群启动文件模板

apiVersion: kubekey.kubesphere.io/v1alpha2
kind: Cluster
metadata:
  name: sample
spec:
  hosts:
  - {name: node1, address: 192.168.23.131, internalAddress: 192.168.23.131, user: root, password: "root"}
  - {name: node2, address: 192.168.23.132, internalAddress: 192.168.23.132, user: root, password: "root"}
  - {name: node3, address: 192.168.23.133, internalAddress: 192.168.23.133, user: root, password: "root"}
  roleGroups:
    etcd:
    - node1
    control-plane: 
    - node1
    worker:
    - node2
    - node3
  controlPlaneEndpoint:
    ## Internal loadbalancer for apiservers 
    internalLoadbalancer: haproxy

    domain: lb.kubesphere.local
    address: ""
    port: 6443
  kubernetes:
    version: v1.22.1
    clusterName: cluster.local
  network:
    plugin: calico
    kubePodsCIDR: 10.233.64.0/18
    kubeServiceCIDR: 10.233.0.0/18
    ## multus support. https://github.com/k8snetworkplumbingwg/multus-cni
    multusCNI:
      enabled: false
  registry:
    plainHTTP: false
    privateRegistry: ""
    namespaceOverride: ""
    registryMirrors: []
    insecureRegistries: []
  addons: []

 ⑥创建k8s集群

命令：./kk create cluster -f k8s.yaml

⑦验证k8s集群

命令：kubectl get nodes

结语

至此一个k8s集群就安装完成了，是不是超级简单。nice day，下期见。。。