Update Docker Hub description

[lfrancke]

I don't know if this is a good place to report this.

The description on https://hub.docker.com/_/rust currently says:

FROM rust:1.40 as builder
WORKDIR /usr/src/myapp
COPY . .
RUN cargo install --path .

FROM debian:buster-slim
RUN apt-get update && apt-get install -y extra-runtime-dependencies && rm -rf /var/lib/apt/lists/*
COPY --from=builder /usr/local/cargo/bin/myapp /usr/local/bin/myapp
CMD ["myapp"]

Can we update this to a newer version?

FROM rust:1.66 as builder
WORKDIR /usr/src/myapp
COPY . .
RUN cargo install --path .

FROM debian:bullseye-slim
RUN apt-get update && apt-get install -y extra-runtime-dependencies && rm -rf /var/lib/apt/lists/*
COPY --from=builder /usr/local/cargo/bin/myapp /usr/local/bin/myapp
CMD ["myapp"]

I assume lots of people take that snippet, update the Rust version and then not update buster to bullseye. That's a problem because bullseye is used for later versions of the builder image and buster doesn't have glibc 2.29. So things compiled on one, might not work on the other.

[kovar]

Hey Lars 👋

I believe you can create a pull request here on the content.md file according to these instructions.

[lfrancke]

Excellent, thank you! I managed not to find that somehow. I'll confirm and will close this issue when I'm done.

[lfrancke]

Opened a PR here: https://github.com/docker-library/docs/pull/2275

I'll close this. Sorry for the noise.