The timed worker queue actually can have nil entries in its map if the work was
kicked off immediately. This looks like an unnecessary special case (it would
be fine to call AfterFunc with a duration <= 0 and it would do the right
thing), but to avoid more sweeping changes the fix consists of documenting this
special behavior and adding a nil check.
The controller is derived from the node taint eviction controller.
In contrast to that controller it tracks the UID of pods to prevent
deleting the wrong pod when it got replaced.
- Increase the global level for broadcaster's logging to 3 so that users can ignore event messages by lowering the logging level. It reduces information noise.
- Making sure the context is properly injected into the broadcaster, this will allow the -v flag value to be used also in that broadcaster, rather than the above global value.
- test: use cancellation from ktesting
- golangci-hints: checked error return value
