Jenkins k8s plugin pod反复重启，connect: no route to host

新安装了centos的虚拟机作为K8s 的node，添加完成后使用Jenkins指定该node启动pod,但是会反复重启

报错如下：

 查看log:

$ kubectl get pod -n xxx | grep yyy | awk '{print $1}' | xargs -I {} kubectl logs {} -c default  -n xxx
Error from server: Get "xxxxxx/default": dial tcp xxx.xxx.xx.xx: connect: no route to host
Error from server: Get "xxxxxx/default": dial tcp xxx.xxx.xx.xx: connect: no route to host
Error from server: Get "xxxxxx/default": dial tcp xxx.xxx.xx.xx: connect: no route to host
Error from server: Get "xxxxxx/default": dial tcp xxx.xxx.xx.xx: connect: no route to host
Error from server: Get "xxxxxx/default": dial tcp xxx.xxx.xx.xx: connect: no route to host

解决办法：

iptables --flush
iptables -tnat --flush

参考：

Unable to access kubernetes services: no route to host · Issue #6139 · rancher/rancher · GitHub

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