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Automatic merge from submit-queue (batch tested with PRs 49855, 49915) Let controllers ignore initialization timeout when creating pods Partially address https://github.com/kubernetes/kubernetes/issues/48893#issuecomment-318540129. This only updates the controllers that create pods with `GenerateName`. The controllers ignore the timeout error when creating the pods, depending on how the initialization progress: * If the initialization is successful in less than 5 mins, the controller will observe the creation via the informer. All is good. * If the initialization fails, server will delete the pod, but the controller won't receive any event. The controller will not create new pod until the Creation expectation expires in 5 min. * If the initialization takes too long (> 5 mins), the Creation expectation expires and the controller will create extra pods. I'll send follow-up PRs to fix the latter two cases, e.g., by refactoring the sharedInformer.