openshift node资源限制

在oc的node配置文件中添加

......
kubeletArguments:
  cgroups-per-qos:
    - "true"
  cgroup-driver:
    - "systemd"
  enforce-node-allocatable:
    - "pods"
  pods-per-core:    #每核cpu数可运行的pod数
    - ""
  max-pods:         #node节点最大可运行的pod数，比 pods-per-core严格
    - ""
  kube-reserved:    #kube组件保留资源
    - "cpu=200m,memory=256M"
  system-reserved:  #其他系统组件保留资源比如：docker
    - "cpu=200m,memory=256M"
  image-gc-high-threshold:
    - ""
  image-gc-low-threshold:
    - ""
  eviction-hard: #硬驱逐策略
    - "memory.available<256Mi,nodefs.available<2Gi,nodefs.inodesFree<5%,imagefs.available<1Gi,imagefs.inodesFree<5%"
  eviction-soft: #软驱逐策略
    - "memory.available<512Mi,nodefs.available<4Gi,nodefs.inodesFree<10%,imagefs.available<2Gi,imagefs.inodesFree<10%"
  eviction-soft-grace-period:   #软驱逐策略宽限期
    - "memory.available=30s,nodefs.available=30s,nodefs.inodesFree=30s,imagefs.available=30s,imagefs.inodesFree=30s"
......