Learn about new Dockerfile 1.7.0 features like new variable expansion, copy with parents with --parents, and exclusion filters with --exclude.

ICT Group

Tessa van der Heijden

Elixir

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The new Dockerfile v1.7.0 release introduces enhanced capabilities for BuildKit, Docker Buildx CLI, and Dockerfile frontend. New variable expansions allow for more flexible scripting, such as prefix and suffix removal. The `COPY --parents` flag replicates source directory structures, and `--exclude` filters provide finer control over copied files. These features aim to streamline multi-stage and multi-platform builds, making Dockerfile more powerful and versatile.

New Dockerfile capabilities in v1.7.0