Add distroless to README.md

[Xerxes-2]

distroless provides an excellent base image to run Rust programs. For Rust programs linked with musl, use distroless/static which weights ~2MB. For Rust programs linked with glibc, use distroless/cc which is ~20MB

[johnthagen]

@jirutka Curious why the downvote.

[jirutka]

Because this project is about “How to minimize Rust binary size”, not how to containerize (or distribute in more general sense) Rust programs. So IMHO this is out of scope of this project.

Moreover, if you want a self-contained program, you can just build a static binary with musl; there’s no reason to wrap it in a container image, unless you have an environment that knows only containers. And again, this is a completely different topic.

[johnthagen]

Thank you for your sharing your thoughts!

[jirutka]

You’re welcome! :)

[Xerxes-2]

Because this project is about “How to minimize Rust binary size”, not how to containerize (or distribute in more general sense) Rust programs. So IMHO this is out of scope of this project.

Moreover, if you want a self-contained program, you can just build a static binary with musl; there’s no reason to wrap it in a container image, unless you have an environment that knows only containers. And again, this is a completely different topic.

1. There's already a Containers section in README.md, so I think this PR is not off topic.
2. I hate container. However there are platforms that only accept container. At lease distroless provides everything a static linked binary need (CA Certs, TZ, etc.) with minimal size

[johnthagen]

@Xerxes-2 Thanks for your contribution.

[jirutka]

1. There's already a Containers section in README.md, so I think this PR is not off topic.

I see, I overlooked this section. In that case, this PR is indeed a good addition.

[burdges]

Ya know, if someone really hates containers enough, then some min-sized-containers repo could be a nice trolling opportunity, maybe reinvent dynamic linking behind the scenes. ;)