tar records the user and group of the files added to the archive. Reproducible: Always Steps to Reproduce: 1. build twice and the binary does not match. 2. 3. Expected Results: Binaries sould match byte for byte given identical build environment. https://wiki.debian.org/ReproducibleBuilds
Created attachment 99148 [details] Fix tar command.
kapptemplate doesn't have a maintainer so possibly nobody will feel competent to review this, if you're confident it works then plunge forward and commit
Pushed. Thanks.