Commits on Apr 22, 2022

1. Don't blindly reuse state from a previous layer when re-creating it …

   We have reports in the wild of a layer store where two symbolic links
   in linkDir point to the same layer. That could only happen when calling
   Driver.create with a previously-used layer ID (which happens all the time
   because pulls use deterministic layer IDs), without fully deleting
   the previous version of the layer (so far, we don't know how that has
   happened).
   
   To avoid such situations, don't just leave whatever was in
   the layer directory laying around; try to remove any pre-existing
   contents, as well as the symbolic link in linkDir, if any.
   
   Signed-off-by: Miloslav Trmač <mitr@redhat.com>

   

   mtrmac committed Apr 22, 2022
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