K8s调整节点kubelet硬驱逐策略

--eviction-hard=nodefs.available<5Gi,imagefs.available<5Gi

添加到kubelet service environment就好(此配置方法在DEPRECATED阶段)

[Service]
Environment="***"

ps: 驱逐相关的doc:

https://kubernetes.io/docs/concepts/scheduling-eviction/node-pressure-eviction/

https://blog.tianfeiyu.com/2020/02/06/kubelet_garbage_collect/ (部分内容过时)

https://kubernetes.io/docs/concepts/architecture/garbage-collection/