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coreDNS pod 状态异常 #5

Open qiangwum opened 2 years ago

qiangwum commented 2 years ago

root@k8s-master:~# kubectl get pod -A NAMESPACE NAME READY STATUS RESTARTS AGE kube-system coredns-7f6cbbb7b8-cnnst 0/1 ContainerCreating 0 110m kube-system coredns-7f6cbbb7b8-v5kzk 0/1 ContainerCreating 0 110m

qiangwum commented 2 years ago

kubectl describe Events: Type Reason Age From Message

Warning FailedCreatePodSandBox 12m (x1285 over 62m) kubelet (combined from similar events): Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "5b5a7200706984edb2f80791ab0949eab08f0feb8fc0a2eda004c48481229633" network for pod "coredns-7f6cbbb7b8-cnnst": networkPlugin cni failed to set up pod "coredns-7f6cbbb7b8-cnnst_kube-system" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/ Normal SandboxChanged 2m42s (x1561 over 62m) kubelet Pod sandbox changed, it will be killed and re-created. root@k8s-master:~#

qiangwum commented 2 years ago

这里我没有用calico的网络的插件，我用的flannel ，会不会和这个有关呢？？？

qiangwum commented 2 years ago

发现另一个错误现象: untime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized 解决办法:

docker pull quay.io/coreos/flannel:v0.9.1-amd64

mkdir -p /etc/cni/net.d/

cat < /etc/cni/net.d/10-flannel.conf {"name":"cbr0","type":"flannel","delegate": {"isDefaultGateway": true}} EOF mkdir /usr/share/oci-umount/oci-umount.d -p mkdir /run/flannel/ cat < /run/flannel/subnet.env FLANNEL_NETWORK=172.100.0.0/16 FLANNEL_SUBNET=172.100.1.0/24 FLANNEL_MTU=1450 FLANNEL_IPMASQ=true EOF

执行完成后删除creating的pod 后即可恢复