Now that is remarkable. The overlay subdir has a supposedly random unique number.

Me and my colleagues get exactly the same as a SHA256 hash for a duplicate blob when trying to push an image to quay.io :

Getting image source signatures

Error: trying to reuse blob sha256:476579af086aee78cb12d88b08fd6b61a80a3f055cae293ec2d15a37dbe7b3f9 at destination: Requesting bearer token: invalid status code from registry 400 (Bad Request)

This must be something deep in how container images are handled.

I wonder what data generates this specific hash; maybe an empty data set?

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Anton Peters