[Backport release-1.29] feat: implement watcher for oci bundles #4429
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Description
Implements an OCI bundle watcher. This allows k0s to load new OCI bundles without requiring a restart of the process. The watcher acts upon
Create()
orWrite()
operations happening in the OCI bundles directory and events are debounced with a timeout of 10 seconds.Fixes # 4316
Type of change
How Has This Been Tested?
At this stage I have updated
k0s
locally and created/deleted/updated bundles manually in the OCI bundles directory. I have been checking the results by inspecting the logs (as follow) and withk0s ctr i ls
:Checklist: