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Docker Compose
==============
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![Docker Compose ](logo.png?raw=true "Docker Compose Logo" )
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Compose is a tool for defining and running multi-container Docker applications.
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With Compose, you use a Compose file to configure your application's services.
Then, using a single command, you create and start all the services
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from your configuration. To learn more about all the features of Compose
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see [the list of features ](https://github.com/docker/docker.github.io/blob/master/compose/overview.md#features ).
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Compose is great for development, testing, and staging environments, as well as
CI workflows. You can learn more about each case in
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[Common Use Cases ](https://github.com/docker/docker.github.io/blob/master/compose/overview.md#common-use-cases ).
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Using Compose is basically a three-step process.
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1. Define your app's environment with a `Dockerfile` so it can be
reproduced anywhere.
2. Define the services that make up your app in `docker-compose.yml` so
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they can be run together in an isolated environment.
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3. Lastly, run `docker-compose up` and Compose will start and run your entire app.
A `docker-compose.yml` looks like this:
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version: '2'
services:
web:
build: .
ports:
- "5000:5000"
volumes:
- .:/code
redis:
image: redis
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For more information about the Compose file, see the
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[Compose file reference ](https://github.com/docker/docker.github.io/blob/master/compose/compose-file/compose-versioning.md ).
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Compose has commands for managing the whole lifecycle of your application:
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* Start, stop and rebuild services
* View the status of running services
* Stream the log output of running services
* Run a one-off command on a service
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Installation and documentation
------------------------------
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- Full documentation is available on [Docker's website ](https://docs.docker.com/compose/ ).
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- Code repository for Compose is on [GitHub ](https://github.com/docker/compose ).
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- If you find any problems please fill out an [issue ](https://github.com/docker/compose/issues/new/choose ). Thank you!
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Contributing
------------
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[![Build Status ](https://jenkins.dockerproject.org/buildStatus/icon?job=docker/compose/master )](https://jenkins.dockerproject.org/job/docker/job/compose/job/master/)
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Want to help build Compose? Check out our [contributing documentation ](https://github.com/docker/compose/blob/master/CONTRIBUTING.md ).
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Releasing
---------
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Releases are built by maintainers, following an outline of the [release process ](https://github.com/docker/compose/blob/master/project/RELEASE-PROCESS.md ).