kubernetes PLEG不健康的问题

node no ready的可能问题

1. 网络插件有问题
2. kubelet有问题（PLEG的问题)
3. 系统资源问题（cpu或者内存满了)

参考文档

• https://segmentfault.com/a/1190000018240634?utm_source=tag-newest
• https://segmentfault.com/a/1190000022163789
• https://fuckcloudnative.io/posts/understanding-the-pleg-is-not-healthy/
• https://blog.csdn.net/Tulipyx/article/details/113869714