个人网站icp备案教程,一级造价工程师教材,html网站登陆页面模板,十堰seo优化方法K8S集群重新初始化 0、当前环境1、master节点1.1、在master节点执行下面reset命令#xff1a;1.2、手动清除配置信息#xff0c;这一步很关键#xff1a;1.3、重新引导集群1.4、创建配置目录#xff0c;并复制权限配置文件到用户目录下#xff1a;1.5 查看集群状态1.6 安装… K8S集群重新初始化 0、当前环境1、master节点1.1、在master节点执行下面reset命令1.2、手动清除配置信息这一步很关键1.3、重新引导集群1.4、创建配置目录并复制权限配置文件到用户目录下1.5 查看集群状态1.6 安装Calico网络插件 2、work节点2.1、重置工作节点2.2、手动删除目录2.3、重新加入集群 3、检验效果 在引导k8s集群的过程时可能因为这个或那个的原因导致需要重新引导集群 。 下面整理了我在实际工作中初始化k8s集群的详细过程。 0、当前环境
k8s环境部署总览
ip地址类型操作系统服务配置192.168.162.31Master01Centos7.62核CPU 2G内存 20G硬盘192.168.162.41node1Centos7.62核CPU 2G内存 20G硬盘192.168.162.42node2Centos7.62核CPU 2G内存 20G硬盘
1、master节点
1.1、在master节点执行下面reset命令
kubeadm reset
//过程会询问是否重置输入y然后回车
1.2、手动清除配置信息这一步很关键
cd ~ 进入根目录ll -a 查看是否存在.kube文件
rm -rf /root/.kubesystemctl restart docker ## 重启docker
systemctl restart kubelet ## 重启kubeletrm -rf /etc/cni/net.d
1.3、重新引导集群
kubeadm init xxxxxx例如具体按你的为准
kubeadm init \
--apiserver-advertise-address192.168.162.31 \
--control-plane-endpointk8s-master01-31 \
--image-repository registry.cn-hangzhou.aliyuncs.com/lfy_k8s_images \
--kubernetes-version v1.20.9 \
--service-cidr10.96.0.0/16 \
--pod-network-cidr192.168.0.0/16初始化master节点成功后拷贝出关键信息注意是你自己的信息
Your Kubernetes control-plane has initialized successfully!To start using your cluster, you need to run the following as a regular user:mkdir -p $HOME/.kubesudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/configsudo chown $(id -u):$(id -g) $HOME/.kube/configAlternatively, if you are the root user, you can run:export KUBECONFIG/etc/kubernetes/admin.confYou should now deploy a pod network to the cluster.
Run kubectl apply -f [podnetwork].yaml with one of the options listed at:https://kubernetes.io/docs/concepts/cluster-administration/addons/You can now join any number of control-plane nodes by copying certificate authorities
and service account keys on each node and then running the following as root:kubeadm join k8s-master01-31:6443 --token m7xgx0.h8m6si6ws2p0r9n6 \--discovery-token-ca-cert-hash sha256:f4d3af365aeabab83cf124e5a84aeb8260ae6c0d54a7f5d87928fab37a519aea \--control-plane Then you can join any number of worker nodes by running the following on each as root:kubeadm join k8s-master01-31:6443 --token m7xgx0.h8m6si6ws2p0r9n6 \--discovery-token-ca-cert-hash sha256:f4d3af365aeabab83cf124e5a84aeb8260ae6c0d54a7f5d87928fab37a519aea 1.4、创建配置目录并复制权限配置文件到用户目录下 mkdir -p $HOME/.kubesudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/configsudo chown $(id -u):$(id -g) $HOME/.kube/config1.5 查看集群状态
此时就可以在master节点使用kubectl get node 查看集群状态如果出现状态为notready
kubectl get node 查看pod状态 1.6 安装Calico网络插件
curl https://docs.projectcalico.org/manifests/calico.yaml -O ## 或者curl https://docs.projectcalico.org/v3.20/manifests/calico.yaml -Okubectl apply -f calico.yaml2、work节点
2.1、重置工作节点
kubeadm reset //过程会询问是否重置输入y然后回车
2.2、手动删除目录
rm -rf /root/.kube
rm -rf /etc/cni/net.d
rm -rf /etc/kubernetes/*2.3、重新加入集群
kubeadm join xxx #获取该指令可以通过在master节点上执行kubeadm token create --print-join-command
自己生成的命令
kubeadm join k8s-master01-31:6443 --token m7xgx0.h8m6si6ws2p0r9n6 \--discovery-token-ca-cert-hash sha256:f4d3af365aeabab83cf124e5a84aeb8260ae6c0d54a7f5d87928fab37a519aea在master节点重新获取token
kubeadm token create --print-join-command3、检验效果
在master节点查看各个node
kubectl get node在master节点查看pod状态
kubectl get pod -A
