mirror of
https://github.com/kubernetes/kubernetes.git
synced 2026-06-04 22:33:13 -04:00
6a28658ca1
Automatic merge from submit-queue (batch tested with PRs 44058, 48085, 48077, 48076, 47823) Make background garbage collection cascading Fix #44046, fix #47843 where user reported that the garbage collector didn't delete pods when a deployment was deleted with PropagationPolicy=Background. The cause is that when propagating background garbage collection request, the garbage collector deletes dependents with DeleteOptions.PropagationPolicy=nil, which means the default GC policy of a resource (defined by its REST strategy) and the existing GC-related finalizers will decide how the delete request is propagated further. Unfortunately, the default GC policy for RS is orphaning, so the pods are behind when a deployment is deleted. This PR changes the garbage collector to delete dependents with DeleteOptions.PropagationPolicy=Background when the owner is deleted in background. This means the dependent's existing GC finalizers will be overridden, making orphaning less flexible (see this made-up [case](https://github.com/kubernetes/kubeadm/issues/149#issuecomment-278942012)). I think sacrificing the flexibility of orphaning is worthwhile, because making the behavior of background garbage collection matching users' expectation is more important. cc @lavalamp @kargakis @krmayankk @enisoc ```release-note The garbage collector now cascades deletion properly when deleting an object with propagationPolicy="background". This resolves issue [#44046](https://github.com/kubernetes/kubernetes/issues/44046), so that when a deployment is deleted with propagationPolicy="background", the garbage collector ensures dependent pods are deleted as well. ``` |
||
|---|---|---|
| .. | ||
| bootstrap | ||
| certificates | ||
| cloud | ||
| cronjob | ||
| daemon | ||
| deployment | ||
| disruption | ||
| endpoint | ||
| garbagecollector | ||
| history | ||
| job | ||
| namespace | ||
| node | ||
| podautoscaler | ||
| podgc | ||
| replicaset | ||
| replication | ||
| resourcequota | ||
| route | ||
| service | ||
| serviceaccount | ||
| statefulset | ||
| ttl | ||
| volume | ||
| .import-restrictions | ||
| BUILD | ||
| client_builder.go | ||
| controller_ref_manager.go | ||
| controller_ref_manager_test.go | ||
| controller_utils.go | ||
| controller_utils_test.go | ||
| doc.go | ||
| lookup_cache.go | ||
| OWNERS | ||