fix(mutate): also set timestamps only present in some formats #1550
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Currently, layerTime only mutates the modification timestamp which is present in all tar formats. When working with layers GNU or PAX header formats, access and change timestamps are also generated/recorded. This breaks functionality like reproducible builds which rely on having control over all variable fields (esp. timestamps) in the layers This commit adds a special case to the layerTime(Layer, Time) function which will also set the additional timestamps if the header is of GNU or PAX format Signed-off-by: Joel Pepper <pepper@bronze-deer.de>
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imjasonh
approved these changes
Jan 31, 2023
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@imjasonh can we get this merged into trunk? Then I can go ahead and create a PR for kaniko, which has had broken reproducible builds for over a year |
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fixes #1523
Currently, layerTime only mutates the modification timestamp which is present in all tar formats. When working with layers GNU or PAX header formats, access and change timestamps are also generated/recorded. This breaks functionality like reproducible builds which rely on having control over all variable fields (esp. timestamps) in the layers
This commit adds a special case to the layerTime(Layer, Time) function which will also set the additional timestamps if the header is of GNU or PAX format
Signed-off-by: Joel Pepper pepper@bronze-deer.de