(maint) Dockerfile use `COPY` instead of `ADD`

singularityhub / sregistry

server for storage and management of singularity images

https://singularityhub.github.io/sregistry

Mozilla Public License 2.0

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Closed vladdoster closed 3 years ago

vladdoster commented 3 years ago

Use COPY because it doesn't take advantage of the ADD auto .tar extraction feature.

Taken from Docker's Best practices documentation.

Signed-off-by: Vladislav Doster mvdoster@gmail.com