Matthew Croughan - Use flake.nix, not Dockerfile - MCH2022

2 years ago

source link: https://www.youtube.com/watch?v=0uixRE8xlbY
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Thank you, Matthew, for presenting this presentation! It was awesome! Please do more! :-)

Love the distinction between repeatable and reproducible :)

I'm not denying the usefulness of nix and/or if whether it's better than Dockerfile or not (quite frankly I don't know nix enough to have an opinion there), but you can create reproducible builds fine using Dockerfiles. Docker gives you plenty of tools including things like "from scratch" and multi-stage builds. Doing an apt-get update and using that same layer obviously messes things up. General practice is removing the apt caches in the same layer, which will get rid of those timestamps and the general caches you complain about. You don't have to use latest either (you can use it's sha256 reference). And lastly, surely debian repos going down is an issue, but it's the same for the hello tar ball on gnu's ftp servers.

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