dockerfilegraph を Homebrew でインストール

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コマンドとエイリアス

• dockerfilegraph

プロジェクトの歴史

Patrick Hoefler's repository was created in February 2021 and released v0.1.0 the same day. The README frames the tool around a common Docker build problem: multi-stage Dockerfiles become hard to reason about once stages, external images, `COPY --from`, and mount-based dependencies accumulate.

The project continued to receive regular releases through the 0.21.x line by March 2026. Its output model matured around build-stage nodes, highlighted default targets, external-image nodes, and edge styles for `FROM`, `COPY --from`, and `RUN --mount ... from=` dependencies.

採用の歴史

dockerfilegraph remains a specialist visualization tool rather than a default Docker workflow. Its install paths still matter to package users: the README documents Docker/ghcr usage, Homebrew installation from the author's tap, mise installation from GitHub, and source builds.

The Homebrew formula API reported stable version 0.21.0, 16 installs in the previous 30 days, and 477 installs in the previous year as of June 30, 2026. That is modest adoption, but credible for a focused Dockerfile architecture/debugging utility.

使われ方

Running `dockerfilegraph` in a project directory generates a graph for `Dockerfile`, with output formats including PDF, SVG, and PNG. Flags support legends, layer display, target filtering, scratch-image handling, separated external-image nodes, and Graphviz layout tuning.

パッケージ好きにとっての重要性

The package is notable because it externalizes Docker build structure into ordinary graph artifacts. It is the kind of CLI package maintainers like: a single executable plus Graphviz turns opaque build-stage relationships into inspectable files for reviews, docs, and debugging.

タイムライン

• 2021: Repository created and v0.1.0 released.
• 2025: 0.19.x releases show continuing maintenance.
• 2026: v0.21.0 released and Homebrew formula reports stable 0.21.0.

Related projects

• dockerfilegraph depends conceptually on Docker multi-stage builds and uses Graphviz for graph rendering.
• It overlaps with documentation and build-debugging workflows rather than with Docker runtime management tools.

ソース

• https://github.com/patrickhoefler/dockerfilegraph#readme
• https://api.github.com/repos/patrickhoefler/dockerfilegraph
• https://github.com/patrickhoefler/dockerfilegraph/releases/tag/v0.1.0
• https://github.com/patrickhoefler/dockerfilegraph/releases/tag/v0.21.0
• https://formulae.brew.sh/api/formula/dockerfilegraph.json