解决k8s分布式集群，子节点加入到主节点失败的问题

1.问题情况

Master主节点在 使用 kubeadm init 成功进行初始化后，如下所示

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 cluster-endpoint:6443 --token k5fx27.0lio5aod7s8b03md \--discovery-token-ca-cert-hash sha256:44dbbd0bb7495be1eb25f78a21103e0b52857df4671bab577af0f5e11ba6f7f1 \--control-planeThen you can join any number of worker nodes by running the following on each as root:kubeadm join cluster-endpoint:6443 --token k5fx27.0lio5aod7s8b03md \--discovery-token-ca-cert-hash sha256:44dbbd0bb7495be1eb25f78a21103e0b52857df4671bab577af0f5e11ba6f7f1

但是子节点在使用  join cluster-endpoint加入到集群时报错

2.解决方法

两台子节点在加入集群时出错，通过docker 的配置文件daemon.json 内容

将内容删除 修改至  只有 mirrors镜像配置   如上图所示   报错后重启docker

#在子节点运行
#重启docker
systemctl stop docker
systemctl daemon-reload
systemctl restart docker#重置 子节点的集群加载配置
kubeadm reset#重新加入主节点集群
kubectl join cluster-endpoint:8888 ................................