Rust Tooling Container

This repository builds a reusable Docker image for Rust CI and test workflows.

Purpose

The image is intended to replace the older 1dev/rust:1.03 container with a current environment that supports coverage and nextest-based test execution.

Included Tooling

The Docker image currently provides:

• Python 3.14
• Rust stable via rustup
• llvm-tools-preview, clippy, and rustfmt
• cargo-nextest
• cargo-llvm-cov
• lcov_cobertura
• system packages required for common Rust builds, including build-essential, curl, pkg-config, libssl-dev, and ca-certificates

It also sets:

• CARGO_HOME=/root/.cache/cargo
• PIP_CACHE_DIR=/root/.cache/pip
• PATH=/root/.cache/cargo/bin:/root/.local/bin:$PATH

Intended Workflow

This image is designed for build steps like:

rustup update
export CARGO_HOME=/root/.cache/cargo
mkdir -p .config
cat << EOF > .config/nextest.toml
[profile.default.junit]
path = "test-result.xml"
store-success-output = true
store-failure-output = true
EOF
cargo llvm-cov nextest --lcov --output-path lcov.info
lcov_cobertura lcov.info -o coverage.xml
chmod -R o+r "$CARGO_HOME"

The runtime workspace configuration, such as .config/nextest.toml, is expected to be created by the consuming job rather than baked into the base image.

Build

docker build -t rust-tooling .