1. couldn‘t get current server API group list: Get “http://localhost:8080/api?timeout=32s“

1、执行命令kubectl get node

报错

E0109 19:18:43.889496 5921 memcache.go:265] couldn't get current server API group list: Get "http://localhost:8080/api?timeout=32s": dial tcp [::1]:8080: connect: connection refused

2、执行命令

cat <<EOF >> /root/.bashrc

export KUBECONFIG=/etc/kubernetes/admin.conf

EOF
source /root/.bashrc

3、退出，重新执行kubectl get node

证书

https://blog.csdn.net/wzj_110/article/details/135659349

初始化失败，回退

# 清理 ipvs 规则
ipvsadm -C
ipvsadm --clear

# 删除虚拟 IP
ip addr del 10.96.0.10/32 dev kube-ipvs0
ip addr del 10.96.0.1/32 dev kube-ipvs0

# 删除网络接口和配置文件
ip link delete cni0
ip link delete flannel.1
rm -rf /etc/cni/net.d/10-flannel.conflist


# 重置 Kubernetes 配置
kubeadm reset -f
rm -rf /etc/kubernetes/*
rm -rf ~/.kube/*
rm -rf /var/lib/etcd/*
rm -rf /etc/cni/*

# 清理完毕后，重新启动服务器
reboot