1、查看外網地址
curl ifconfig.me
2、重啓Kubeadm
kubeadm reset
3、查看指定namespace下的pod
kubectl get pod -n kube-system
4、獲取內網IP地址(https://www.cnblogs.com/kerrycode/archive/2015/06/16/4581030.html)
ifconfig eth0 | grep "inet addr" | awk '{ print $2}' | awk -F: '{print $2}'
ifconfig eth0|awk -F "[ :]+" 'NR==2 {print $4}'
ifconfig eth0|sed -rn 's#^.*dr:(.*) Bc.*$#\1#gp'