eadiness probe failed: calico/node is not ready: BIRD is not ready: Error querying BIRD: unable to c

Kuberadm 部署的集群Calico 运行错误

报错：

1，查看Calico

kubectl get pods -n kube-system

Calico-node 0/1 Running

2，查看日志：

kubectl describe calico-node-gdv9r -n kube-system

Calico 报错如下:
Readiness probe failed: calico/node is not ready: BIRD is not ready: Error querying BIRD: unable to connect to BIRDv4 socket

Readiness probe failed: calico/node is not ready: BIRD is not ready: Error querying BIRD: unable to connect to BIRDv4 socket: dial unix /var/run/bird/bird.ctl: connect: no such file or directory

解决办法：

1，删除Docker 和 Calico 错误DOWN的网卡/接口：

ip link docker0

2，删除Calico pod （Pod删除后会被被k8s集群重新构建运行）

kubectl delete pod calico-node-gdv9r -n kube-system

3，再次查看Calico 发现正常了。

kubectl get pods -n kube-system

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