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# Distribution
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The toolset to pack, ship, store, and deliver content.
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This repository's main product is the Open Source Registry implementation
for storing and distributing container images using the
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[OCI Distribution Specification ](https://github.com/opencontainers/distribution-spec ).
The goal of this project is to provide a simple, secure, and scalable base
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for building a large scale registry solution or running a simple private registry.
It is a core library for many registry operators including Docker Hub, GitHub Container Registry,
GitLab Container Registry and DigitalOcean Container Registry, as well as the CNCF Harbor
Project, and VMware Harbor Registry.
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< img src = "/distribution-logo.svg" width = "200px" / >
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[](https://github.com/distribution/distribution/actions?query=workflow%3ACI)
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[](https://pkg.go.dev/github.com/distribution/distribution)
[](LICENSE)
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[](https://codecov.io/gh/distribution/distribution)
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[](https://app.fossa.com/projects/custom%2B162%2Fgithub.com%2Fdistribution%2Fdistribution?ref=badge_shield)
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[](https://github.com/distribution/distribution/actions?query=workflow%3Aconformance)
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This repository contains the following components:
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|**Component** |Description |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| **registry** | An implementation of the [OCI Distribution Specification ](https://github.com/opencontainers/distribution-spec ). |
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| **libraries** | A rich set of libraries for interacting with distribution components. Please see [godoc ](https://pkg.go.dev/github.com/distribution/distribution ) for details. **Note** : The interfaces for these libraries are **unstable** . |
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| **documentation** | Docker's full documentation set is available at [docs.docker.com ](https://docs.docker.com ). This repository [contains the subset ](docs/ ) related just to the registry. |
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### How does this integrate with Docker, containerd, and other OCI client?
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Clients implement against the OCI specification and communicate with the
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registry using HTTP. This project contains a client implementation which
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is currently in use by Docker, however, it is deprecated for the
[implementation in containerd ](https://github.com/containerd/containerd/tree/master/remotes/docker )
and will not support new features.
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### What are the long term goals of the Distribution project?
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The _Distribution_ project has the further long term goal of providing a
secure tool chain for distributing content. The specifications, APIs and tools
should be as useful with Docker as they are without.
Our goal is to design a professional grade and extensible content distribution
system that allow users to:
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* Enjoy an efficient, secured and reliable way to store, manage, package and
exchange content
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* Hack/roll their own on top of healthy open-source components
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* Implement their own home made solution through good specs, and solid
extensions mechanism.
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## Contribution
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Please see [CONTRIBUTING.md ](CONTRIBUTING.md ) for details on how to contribute
issues, fixes, and patches to this project. If you are contributing code, see
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the instructions for [building a development environment ](BUILDING.md ).
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## Communication
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For async communication and long running discussions please use issues and pull requests on the github repo.
This will be the best place to discuss design and implementation.
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For sync communication we have a #distribution channel in the [CNCF Slack ](https://slack.cncf.io/ )
that everyone is welcome to join and chat about development.
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## Licenses
The distribution codebase is released under the [Apache 2.0 license ](LICENSE ).
The README.md file, and files in the "docs" folder are licensed under the
Creative Commons Attribution 4.0 International License. You may obtain a
copy of the license, titled CC-BY-4.0, at http://creativecommons.org/licenses/by/4.0/.
