portable_mtime for py3_image

[amir-f]

🚀 feature request

Description

When using py3_image the mtime (modification time) for all the files are set to 0 unix time (cira 1970). Some python libraries panic when they see that (eg. zipfile python builtin lib ValueError: ZIP does not support timestamps before 1980)

Describe the solution you'd like

container_image has an option to set all mtimes to a fixed valued: see portable_mtime but IIUC it needs to be routed to py3_image through the signatures somehow, hence this feature request.

Basically can we by default or through an option in py3_image set all the mtimes to something other than 0 ?

[github-actions[bot]]

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