feat(rust): add Rust Dockerfile templates#15
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Implements issue #8. Adds cargo-chef dep-caching pattern to isolate the dependency-compile layer from application source — code-only rebuilds skip the expensive cargo cook step entirely. - Dockerfile.rust: rust:1.82-slim builder + distroless/cc-debian12 runtime for GNU binaries; ARG BIN_NAME=app - Dockerfile.rust.chainguard: cgr.dev/chainguard/rust builder + cgr.dev/chainguard/glibc-dynamic runtime; ARG BASE_TAG=latest pattern avoids DL3007; digest-pinning documented in header - Dockerfile.devcontainer: mcr.microsoft.com/devcontainers/rust:1-bookworm with cargo-edit, cargo-watch, cargo-nextest, cargo-chef - .devcontainer/devcontainer.json: rust-analyzer (clippy mode), vscode-lldb, even-better-toml, crates, dependi extensions - .dockerignore: excludes target/ (multi-GB), .env, .git, .vscode - README.md: cargo-chef strategy, musl vs GNU table, digest-pinning, devcontainer setup, hardening checklist Closes #8
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Summary
Dockerfile.rust— rust:1.82-slim builder +gcr.io/distroless/cc-debian12:nonrootruntime for GNU binaries;ARG BIN_NAME=appfor configurable binary nameDockerfile.rust.chainguard—cgr.dev/chainguard/rustbuilder +cgr.dev/chainguard/glibc-dynamicruntime;ARG BASE_TAG=latestpattern avoids hadolint DL3007; digest-pinning documented in header commentDockerfile.devcontainer—mcr.microsoft.com/devcontainers/rust:1-bookwormwith cargo-edit, cargo-watch, cargo-nextest, cargo-chef.devcontainer/devcontainer.json— rust-analyzer (clippy mode), vscode-lldb, even-better-toml, crates, dependi extensions.dockerignore— excludestarget/(can be multi-GB),.env,.git,.vscodeREADME.md— cargo-chef strategy, musl vs GNU table, digest-pinning workflow, devcontainer setup, hardening checklistREADME.mdupdated: Rust added to intro sentence and ecosystems list, removed from "Coming soon"Test plan
npm run lintpasses (markdownlint, hadolint, prettier — all clean)docker build --build-arg BIN_NAME=<bin> -f dockerfiles/rust/Dockerfile.rust .in a Rust projectdocker build --build-arg BIN_NAME=<bin> -f dockerfiles/rust/Dockerfile.rust.chainguard .in a Rust projectcargo chef cooklayerdockerfiles/rust/in VS Code Dev Containers and verify extensions loadCloses #8