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Comment by okanat | Hacker News Reader

Would you consider writing Docker/moby in a different language, if you were to create it scratch today?

Oh gosh, the choice of language is such a context-specific design decision. The first versions of what became Docker were written in Python. The choice of Go was a mix of nerdy excitement ("it's like the best of Python and C!"), and adoption strategy: back then devops tools were segmented by language runtime: ruby, python or Java mostly. Shipping a compiled binary allowed us to be adopted by all tribes.

None of these things can be transposed today, so I guess I can't answer...

For what it's worth, my current project (dagger) is written in Go.

That's a good answer that effectively rebuts the article's claim that Go was a bad choice imo.

The article's point that Go is a bad fit for some of the low-level interactions with the kernel, is absolutely correct though. We had to do a lot of juggling to get it to work properly. But in the end it was fine. I would say it was the correct choice of language at the time, and it certainly contributed to Docker's early success.

Another explicit goal was to facilitate contribution. We thought Go syntax was "vanilla" enough to attract a broader set of contributors than a more niche, opinionated language like Erlang, Haskell, Clojure etc. I think that also worked out well - Docker was known for attracting many contributors, many of them making their very first open source contributions. We even ran special meetups to help people become contributors, that was fun.

This is the coolest set of contributions to HN this month, most likely.

Thank you.

I think that's so true and it was one of the keys to success of the project. I contributed the very first simplistic implementation of referencing linked containers by name. I never would have bothered if the project was written in C or C++ (I'm more than capable, I just don't enjoy torturing myself). Go made it MUCH easier for a fly-by-night contributor such as myself to join the party.

I interviewed Solomon about the Go history (plus some others) for this talk https://www.infoq.com/presentations/languages-cloud-native/

Actually there are some longer unedited versions I might release.

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