k8s 集群1台 master 节点出现 NotReady 问题
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悬赏园豆：30
[已解决问题]
解决于 2020-01-09 19:03
通过 journalctl -u kubelet | tail -n 300 命令查看日志发现下面3个错误：
错误1
cni.go:237] Unable to update cni config: no networks found in /etc/cni/net.d错误2
Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized错误3
controller.go:135] failed to ensure node lease exists, will retry in 7s, error: leases.coordination.k8s.io "k8s-master0" is forbidden: User "system:node:blog-swarm-n0" cannot get resource "leases" in API group "coordination.k8s.io" in the namespace "kube-node-lease": can only access node lease with the same name as the requesting node请问如何解决？
最佳答案
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是修改 hostname 引起的，错误1与错误2是由于宿主机的 hostname 与节点名称不一致造成 calico-node 容器部署失败，错误3是由于修改了 /etc/kubernetes/kubelet.conf 中的 user: system:node: 与 name: system:node: 中的主机名，都改为相同的名称就解决了。
