怎麼表示一個pod 是 Critical Pod
規則1:
Enable Feature Gate ExperimentalCriticaPodAnnotation
必須隸屬於kube-system namespace;
必須加上Annotation scheduler.alpha.kubernetes.io/critical-pod=""
規則2:
Enable Feature Gate ExperimentalCriticaPodAnnotation, PodPriority
Pod的Priority不爲空,且不小於2 * 10^9;
> system-node-critical priority = 10^9 + 1000;
> system-cluster-critical priority = 10^9;
滿足規則1或規則2之一,就認爲該Pod爲Critical Pod;
參考
https://yq.aliyun.com/articles/603541