k8s资源预留

https://kubernetes.io/zh-cn/docs/tasks/administer-cluster/reserve-compute-resources/

vim /var/lib/kubelet/config.yaml

enforceNodeAllocatable:
- pods
kubeReserved:  # 配置 kube 资源预留
  cpu: 500m
  memory: 1Gi
  ephemeral-storage: 1Gi
systemReserved:  # 配置系统资源预留
  memory: 1Gi
evictionHard:  # 配置硬驱逐阈值
  memory.available: "300Mi"
  nodefs.available: "10%"