BuildKit vs ocijail
BuildKit
github.comocijail
github.comSide by side
| Figure | BuildKit | ocijail |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Container Engines | 8.9 (#2) | 6.6 (#28) |
| Integrations | BuildKit documentation lists integrations or usage with Podman, nerdctl, Kubernetes, Docker buildx, GitHub Actions cache, S3 cache, Azure Blob Storage cache, and OpenTelemetry. | The README names Buildah and Podman as intended companion tools. |
| License | BuildKit is distributed under the Apache License, Version 2.0, which grants perpetual, worldwide, non-exclusive, no-charge, royalty-free copyright rights subject to the license terms. | The repository is licensed under BSD-2-Clause. |
| Purpose | BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. | ocijail is an experimental OCI runtime using FreeBSD jails. |
| Support | The project directs users to the #buildkit channel on Docker Community Slack and to GitHub issues for reporting problems with release binaries. | The repository exposes a GitHub Issues page for project issues. |
Plans
In their own words
BuildKit
BuildKit is a free toolkit for turning source code into build artifacts. It consists of the buildkitd daemon and buildctl client, and uses LLB, a binary format for describing process dependency graphs. Builds can use Dockerfiles or other LLB-compatible frontends, resolve dependencies concurrently, cache instructions, import and export caches, run nested jobs, and collect unused data automatically. BuildKit supports execution without root privileges and OCI (runc) or containerd workers. Results can be exported as images, local directories, tarballs, Docker tarballs, or OCI tarballs. Cache options include inline, registry, local-directory, and GitHub Actions backends; the README marks GitHub Actions, S3, and Azure Blob options experimental. The daemon provides a gRPC API over a Unix socket by default, with TCP sockets also supported. Binaries are available for Linux, macOS, and Windows. The unofficial Homebrew formula for macOS omits buildkitd; the project gives Lima in a Linux virtual machine as one way to run it. BuildKit is licensed under Apache-2.0.