Rust builder image

This is an image to build applications based on Rust. As Rust versions are backwards compatible, we only have the latest version available.

Adding a new version

Rust guarantees to build the next version with the current one. We start with the RHEL provided Rust version and incrementally build up to the most recent released version.

• Add the source tarball to artifacts.lock.yaml

• Add the new version to the list of build instructions:

   RUN ./build.sh 1.89.0 1.90.0
  +RUN ./build.sh 1.90.0 1.91.0

• Change the version in the last stage:

  -ARG RUST_VERSION=1.90.0
  +ARG RUST_VERSION=1.91.0

When RHEL updates its Rust version, it is possible to remove older Rust versions. For example, should RHEL upgrade from 1.85.0 to 1.87.0:

-RUN ./build.sh 1.85.0
-RUN ./build.sh 1.85.0 1.86.0
-RUN ./build.sh 1.86.0 1.87.0
-RUN ./build.sh 1.87.0 1.88.0
+RUN ./build.sh 1.88.0
RUN ./build.sh 1.88.0 1.89.0
RUN ./build.sh 1.89.0 1.90.0

Refreshing RPM dependencies

You will need:

• An installation of rpm-lockfile-prototype

Then run:

rpm-lockfile-prototype --image registry.access.redhat.com/ubi9/ubi:latest rpms.in.yaml 

Consuming

The builder image has cargo in its path. It can be used to build applications right away.

It is also possible to copy the toolchain over to another container, using:

FROM registry.access.redhat.com/ubi10/ubi:latest

COPY --from=quay.io/konflux-ci/rust-builder:latest /usr/local/share/rust /usr/local/share/rust

ENV PATH=$PATH:/usr/local/share/rust/bin