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| title | keywords |
|---|---|
| High-level build options with Bake | build, buildx, bake, buildkit, hcl, json, compose |
This command is experimental.
The design of bake is in early stages, and we are looking for feedback from users. {: .important }
Buildx also aims to provide support for high-level build concepts that go beyond invoking a single build command. We want to support building all the images in your application together and let the users define project specific reusable build flows that can then be easily invoked by anyone.
BuildKit efficiently handles multiple
concurrent build requests and de-duplicating work. The build commands can be
combined with general-purpose command runners (for example, make). However,
these tools generally invoke builds in sequence and therefore cannot leverage
the full potential of BuildKit parallelization, or combine BuildKit's output
for the user. For this use case, we have added a command called
docker buildx bake.
The bake command supports building images from HCL, JSON and Compose files.
This is similar to docker compose build,
but allowing all the services to be built concurrently as part of a single
request. If multiple files are specified they are all read and configurations are
combined.
We recommend using HCL files as its experience is more aligned with buildx UX and also allows better code reuse, different target groups and extended features.