buildkit: A toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner.
What problem it solves
Source-code builds need an expressive, repeatable execution model that can resolve dependencies concurrently, reuse cached instructions, and produce results through multiple output formats. Build systems also need support for different build definitions without tying execution to a single Dockerfile-oriented frontend.
Key features
Concurrent, cacheable build graphs — Builds are represented as dependency graphs in the binary LLB format. Graph operations can execute concurrently and are designed for efficient caching.
Source: README
Extendable frontend formats — Frontends translate build definitions into LLB, allowing different build languages to use the same execution engine. The gateway frontend can also use an image as a frontend.
Source: README
Multiple output formats — Build results can be exported as images, local directories, tarballs, OCI tarballs, or through a containerd image store. Cache can also be imported and exported through several supported backends.
Source: README
Worker and deployment flexibility — The daemon supports OCI and containerd worker backends, can expose its API through sockets, and can run without root privileges. Its systemd units also support socket activation.
Source: README
Cache lifecycle management — BuildKit can report local cache usage, prune it, and automatically manage it through garbage collection. Cache exporters support inline, registry, local, GitHub Actions, S3, and Azure Blob Storage workflows.
Source: README
Quick start
Copied verbatim from the project's README.
$ sudo buildkitdWho it may suit
This project may suit developers and operators who need a flexible build engine, cache-aware build execution, or support for build definitions beyond Dockerfiles.
Topics to discuss
Which frontend or build language should the community prioritize next?
How can cache portability be improved across registry, local, and cloud storage backends?
What deployment patterns and worker configurations should receive more documentation or examples?
Written by ReadmeX AI from the project's README, source and public GitHub data; it may contain mistakes.
Read the original README https://github.com/moby/buildkit#readme
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