单机K8s加入节点组成集群

在上一篇中搭建了单机的k8s和它的管理系统KubeSphere，但是在实际应用中肯定不是`All-in-One`形式的。

所以要在目前单机的基础上添加工作节点形成集群，默认我们上一篇安装的就是master节点，在master节点的基础上增加node节点

systemctl disable firewalld
systemctl stop firewalld
systemctl status firewalld

swapoff -a
echo "vm.swappiness=0" >> /etc/sysctl.conf
sysctl -p /etc/sysctl.conf

rpm -ivh http://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm

yum -y update

yum install -y ebtables socat ipset conntrack

hostnamectl --static set-hostname node1

./kk create config --from-cluster

vim  sample.yaml

apiVersion: kubekey.kubesphere.io/v1alpha2
kind: Cluster
metadata:
  name: sample
spec:
  hosts:
  ##You should complete the ssh information of the hosts
  - {name: master, address: 10.0.20.8, internalAddress: 10.0.20.8}
  - {name: node1, address: 10.0.20.9, internalAddress: 10.0.20.9, user: root, password: xxx}
  - {name: node2, address: 10.0.20.10, internalAddress: 10.0.20.10, user: root, password: xxx}
  - {name: node3, address: 10.0.20.11, internalAddress: 10.0.20.11, user: root, password: xxx}
  roleGroups:
    etcd:
    - master
    master:
    - master
    worker:
    - node1
    - node2
    - node3
  controlPlaneEndpoint:
    ##Internal loadbalancer for apiservers
    #internalLoadbalancer: haproxy

    ##If the external loadbalancer was used, 'address' should be set to loadbalancer's ip.
    domain: lb.kubesphere.local
    address: ""
    port: 6443
  kubernetes:
    version: v1.22.10
    clusterName: cluster.local
    proxyMode: ipvs
    masqueradeAll: false
    maxPods: 110
    nodeCidrMaskSize: 24
  network:
    plugin: calico
    kubePodsCIDR: 10.233.64.0/18

./kk add nodes -f sample.yaml

`此次安装过程较长，摸个鱼吧`