Allow overriding image creation time #137
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If the
SOURCE_DATE_EPOCH
env var is set (to a number of seconds since the Unix epoch), its value will be used as the creation time of the image produced, and of config history values for each layer.This matches the behavior of tools like
ko
and is the recommendation of https://reproducible-builds.org/See https://reproducible-builds.org/docs/source-date-epoch/
This was requested in a Slack thread, and I think unless there's a philosophical reason not to support it, the diff is small, and AFAIK will not have negative downstream effects (but isn't that always what they say?)
Anyway, let me know if there is some philosophical reason not to support it, or if you suspect there will be negative downstream effects.