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Cloud Native Buildpacks Pack

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What Cloud Native Buildpacks Pack is

Cloud Native Buildpacks Pack is a free CLI for building applications with buildpacks and rebasing the resulting application images. It is also available as a Go library. Buildpacks turn source code into container images designed to run on any cloud. Listed capabilities include caching, source auto-detection, modular buildpacks, support for multiple languages and processes, minimal images, reproducible builds, and reuse of community buildpacks. Pack can produce build-time software bills of materials in CycloneDX, SPDX, and Syft JSON formats. The CLI is available for Linux, macOS, and Windows, with package-manager, container-image, script, and manual installation options. Builds require a containerized environment and a daemon such as Docker or Podman; some setups may need the local Docker socket mounted. Documented integrations include CircleCI, GitLab Auto DevOps, and Tekton. The project also describes kpack for Kubernetes-based builds and image updates. Pack is Apache-2.0 licensed, with no paid plans listed.

Who it suits

Pack suits developers who build container images with buildpacks and teams that want a CLI or Go library for that work. Its documented integrations and Kubernetes-related tooling may also fit build workflows using those environments.

What it does well

  • Free CLI and Go library
  • Supports build and image rebasing
  • Produces SBOMs in three listed formats
  • Available for Linux, macOS, and Windows

What to know first

  • Builds require Docker, Podman, or another daemon
  • Some setups may require mounting the Docker socket

Plans

PlanBilled and limitsPrice
PackNo paid plans listed; free CLI and Go libraryFree

As buildpacks.io lists them, read 2 Oct 2026. The maker's own page has the final word.

Getting started

  1. Open the Pack installation documentation.
  2. Choose a package-manager, container-image, script, or manual installation method for Linux, macOS, or Windows.
  3. Set up a containerized environment and a daemon such as Docker or Podman.
  4. Use Pack’s CLI or Go library to build an application with buildpacks or rebase an image.
  5. For pipeline use, consult the documented CircleCI orb, GitLab Auto DevOps use, or Tekton reference task.

Verdict

Pack combines buildpack builds and rebasing with several listed integrations and SBOM formats. It requires a containerized environment and a daemon for building.

Questions

How much does Pack cost?

Pack is free. No paid plans are listed.

Which operating systems does Pack support?

The CLI is listed for Linux, macOS, and Windows. The platforms also include self-hosted.

What does Pack do?

Pack builds applications using buildpacks and rebases application images created with buildpacks. It is available as a CLI and a Go library.

What does Pack need to build images?

Builds require a containerized environment and a daemon such as Docker or Podman. Some environments may also require mounting the local Docker daemon socket.

Is Pack open source?

The project is described as Apache-2.0 licensed.

Which integrations are documented?

The project documents a CircleCI orb, GitLab Auto DevOps use of Pack, and a Tekton reference task. Its documentation also describes kpack for Kubernetes-native buildpack builds and image updates.

Facts from Cloud Native Buildpacks Pack's own pages

Build and rebase
Pack can build applications using buildpacks and rebase application images created with buildpacks. · buildpacks.io, 2 Oct 2026
Build output
Cloud Native Buildpacks transform application source code into container images that can run on any cloud. · buildpacks.io, 2 Oct 2026
Docker socket
The installation docs say some container environments may require mounting the local Docker daemon socket. · buildpacks.io, 2 Oct 2026
Features
Listed features include caching, source auto-detection, modular buildpacks, multiple languages and processes, minimal images, rebasing, reproducibility and reuse of community buildpacks. · buildpacks.io, 2 Oct 2026
Install options
The CLI is listed for Linux, macOS and Windows, with package-manager, container-image, script and manual installation options. · buildpacks.io, 2 Oct 2026
Integrations
The project documents a CircleCI orb for running pack commands, GitLab Auto DevOps use of pack, and a Tekton reference task for builds. · buildpacks.io, 2 Oct 2026
Kubernetes
The docs describe kpack as a Kubernetes-native platform that uses unprivileged Kubernetes primitives for buildpack builds and image updates. · buildpacks.io, 2 Oct 2026
Library
Pack is available both as a command-line interface and as a Go library. · buildpacks.io, 2 Oct 2026
License
The project is described as an Apache-2.0 licensed project. · buildpacks.io, 2 Oct 2026
Purpose
Pack is a CLI tool maintained by the Cloud Native Buildpacks project to support the use of buildpacks. · buildpacks.io, 2 Oct 2026
Runtime requirement
Buildpacks run in a containerized environment, and Pack uses a daemon such as Docker or Podman to create build containers. · buildpacks.io, 2 Oct 2026
SBOM
The project lists build-time software bills of materials in CycloneDX, SPDX and Syft JSON formats. · buildpacks.io, 2 Oct 2026
Security and maturity
The project reports CNCF graduation on 11 August 2026 following a third-party security audit, an OpenSSF Best Practices badge and adoption of the CNCF Code of Conduct. · buildpacks.io, 2 Oct 2026
Support
The project identifies CNCF Slack #buildpacks and its mailing list as contact channels for the team. · buildpacks.io, 2 Oct 2026

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