| name | ip |
|---|---|
| master | 192.168.57.61 |
| node1 | 192.168.57.76 |
master 安装需要2H4G 磁盘空间至少需要20G
node1 安装需要4H4G 磁盘空间至少需要50G
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
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 -
这个环境变量决定下载的时候去哪里下，设置了cn之后就会去国内源里下载，比较快
关闭selinux,swap,防火墙
使用KubeKey生成一个k8s集群启动文件模板k8s.yaml
./kk create config --with-kubernetes v1.22.1 -f k8s.yaml修改k8s集群启动文件模板
apiVersion: kubekey.kubesphere.io/v1alpha2
kind: Cluster
metadata:name: sample
spec:hosts:- {name: master, address: 192.168.57.61, internalAddress: 192.168.57.61, user: root, password: "chen"}- {name: node1, address: 192.168.57.76, internalAddress: 192.168.57.76, user: root, password: "chen"}roleGroups:etcd:- mastercontrol-plane: - masterworker:- master- node1controlPlaneEndpoint:## Internal loadbalancer for apiservers # internalLoadbalancer: haproxydomain: lb.kubesphere.localaddress: ""port: 6443kubernetes:version: v1.22.1clusterName: cluster.localautoRenewCerts: truecontainerManager: dockeretcd:type: kubekeynetwork:plugin: calicokubePodsCIDR: 192.168.57.0/24kubeServiceCIDR: 192.168.0.0/24## multus support. https://github.com/k8snetworkplumbingwg/multus-cnimultusCNI:enabled: falseregistry:privateRegistry: ""namespaceOverride: ""registryMirrors: []insecureRegistries: []addons: []
重点关注下两个参数
kubePodsCIDR: 192.168.57.0/24
kubeServiceCIDR: 192.168.0.0/24
kubeServiceCIDR 必须写x.x.0.0 不能写网段，不然网络插件就会出问题
安装K8S集群
./kk create cluster -f k8s.yaml检查节点完成后会提示你 要不要开始安装
直接 yes即可
安装时间大概10多分钟（根据网络可能会慢或快）
验证k8s集群
安装完成执行
[root@master ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
master Ready control-plane,master,worker 55m v1.22.1
node1 Ready worker 55m v1.22.1
两个节点的状态都 ready 就绪了
