(二)kubeadm方式搭建单master的k8s的集群
Kubernetesv1.34+集群初始化
prod-k8s-master (master节点) 配置集群初始化配置文件
1：编写Kubernetes初始化配置文件
vim /root/kubeadm-config.yaml--- apiVersion: kubeadm.k8s.io/v1beta4 bootstrapTokens: - groups: - system:bootstrappers:kubeadm:default-node-token token: 7t2weq.bjbawausm0jaxury ttl: 24h0m0s usages: - signing - authentication kind: InitConfiguration localAPIEndpoint: advertiseAddress: <master的ip> #注意 bindPort: 6443 nodeRegistration: criSocket: unix:///var/run/containerd/containerd.sock imagePullPolicy: IfNotPresent imagePullSerial: true name: prod-k8s-master #注意跟自己master主机名一致 taints: - effect: NoSchedule key: node-role.kubernetes.io/control-plane timeouts: controlPlaneComponentHealthCheck: 4m0s discovery: 5m0s etcdAPICall: 2m0s kubeletHealthCheck: 4m0s kubernetesAPICall: 1m0s tlsBootstrap: 5m0s upgradeManifests: 5m0s --- apiServer: certSANs: - <单master写ip> #注意 apiVersion: kubeadm.k8s.io/v1beta4 caCertificateValidityPeriod: 876000h0m0s certificateValidityPeriod: 876000h0m0s certificatesDir: /etc/kubernetes/pki clusterName: kubernetes controlPlaneEndpoint: <单master写ip>:6443 #注意 controllerManager: {} dns: {} encryptionAlgorithm: RSA-2048 etcd: local: dataDir: /var/lib/etcd imageRepository: registry.cn-hangzhou.aliyuncs.com/google_containers kind: ClusterConfiguration kubernetesVersion: v1.34.4 #注意k8s版本 networking: dnsDomain: cluster.local podSubnet: 172.16.0.0/16 serviceSubnet: 10.96.0.0/16 proxy: {} scheduler: {}查看kubernetesVersion
kubectl version2：更新的初始化文件（可选，更新记得更改controlPlaneComponentHealthCheck默认的超时时间，以及证书的有效时间）
kubeadm config migrate --old-config kubeadm-config.yaml --new-config new.yaml集群Master节点拉取相关组件镜像
kubeadm config images pull --config new.yamlnode节点入网
worker 节点执行 kubeadm join，本机 kubelet 连上集群
prod-k8s-master0生成集群Token值
kubeadm init --config new.yaml --upload-certs这里要是报错了, 到当前目录下的new.yaml修改默认等待时间
然后执行下方蓝色字体下方命令清除缓存!
执行成功:
prod-k8s-master节点执行命令 : 上方图片内对应第一个的红色框内的命令
集群其他Master节点执行命令(红框2) #现在单master用不到
集群其他Node节点执行命令(红框3)
#在对应的工作节点执行,加入到集群内 #以自己的实际生成的命令代码为准