distribution/docs/overview.md

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<!--[metadata]>
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title = "Docker Registry 2.0"
description = "Introduces the Docker Registry"
keywords = ["registry, images, repository"]
[menu.main]
parent="smn_registry"
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<![end-metadata]-->
# Docker Registry
## What it is
The Registry is a stateless, highly scalable server side application that stores and lets you distribute Docker images.
The Registry is open-source, under the permissive [Apache license](http://en.wikipedia.org/wiki/Apache_License).
## Why use it
You should use the Registry if you want to:
* tightly control where your images are being stored
* fully own your images distribution pipeline
* integrate images storage and distribution into your inhouse development workflow
## Alternatives
Users looking for a zero maintenance, ready-to-go solution are encouraged to head-over to the [Docker Hub](https://hub.docker.com), which provides a free-to-use, hosted Registry, plus additional features (organization accounts, automated builds, and more).
Users looking for a commercially supported version of the Registry should look into [Docker Hub Enterprise](https://docs.docker.com/docker-hub-enterprise/).
## Requirements
The Registry is compatible with Docker engine **version 1.6.0 or higher**.
If you really need to work with older Docker versions, you should look into the [old python registry](https://github.com/docker/docker-registry)
## TL;DR
```
# Start your registry
docker run -d -p 5000:5000 registry:2
# Pull (or build) some image from the hub
docker pull ubuntu
# Tag the image so that it points to your registry
docker tag ubuntu localhost:5000/myfirstimage
# Push it
docker push localhost:5000/myfirstimage
# Pull it back
docker pull localhost:5000/myfirstimage
```
Simple as that? Yes. Now, please read the...
## Documentation
- [Introduction](introduction.md)
- [Deployment](deploying.md)
- [Configuration](configuration.md)
- [Getting help](help.md)
- [Contributing](../CONTRIBUTING.md)
### Reference and advanced topics
- [Glossary](glossary.md)
- [Authentication](authentication.md)
- [Working with notifications](notifications.md)
### Development resources
- [Storage driver model](storagedrivers.md)
- [Registry API](spec/api.md)
<!--
- [Building the registry](building.md)
- [Architecture notes](architecture.md)
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