k8s v1.19.0

强删Pod产生Update事件

informerFactory.Core().V1().Pods().Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
	UpdateFunc: func(old, new interface{}) {
		newPod, ok := new.(*core_v1.Pod)
		if ok && newPod.DeletionTimestamp != nil {
			klog.Infof("pod %s/%s is deleting", newPod.Namespace, newPod.Name)
		}
	},
})

kube-apiserver流程分析

staging/src/k8s.io/apiserver/pkg/registry/rest/delete.go
BeforeDelete函数返回graceful是true

staging/src/k8s.io/apiserver/pkg/registry/generic/registry/store.go

更新发生在删除Pod之前。