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Overview of Docker Compose

Compose is a tool for defining and running multi-container applications with Docker. With Compose, you define a multi-container application in a single file, then spin your application up in a single command which does everything that needs to be done to get it running.

Compose is great for development environments, staging servers, and CI. We don't recommend that you use it in production yet.

Using Compose is basically a three-step process.

Define your app's environment with a Dockerfile so it can be reproduced anywhere.
Define the services that make up your app in docker-compose.yml so they can be run together in an isolated environment:
Lastly, run docker-compose up and Compose will start and run your entire app.

A docker-compose.yml looks like this:

web:
  build: .
  ports:
   - "5000:5000"
  volumes:
   - .:/code
  links:
   - redis
redis:
  image: redis

Compose has commands for managing the whole lifecycle of your application:

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

Compose documentation

Release Notes

To see a detailed list of changes for past and current releases of Docker Compose, please refer to the CHANGELOG.

Getting help

Docker Compose is under active development. If you need help, would like to contribute, or simply want to talk about the project with like-minded individuals, we have a number of open channels for communication.

To report bugs or file feature requests: please use the issue tracker on Github.
To talk about the project with people in real time: please join the #docker-compose channel on freenode IRC.
To contribute code or documentation changes: please submit a pull request on Github.

For more information and resources, please visit the Getting Help project page.

2.6 KiB Raw Blame History

Overview of Docker Compose

Compose documentation

Release Notes

Getting help

2.6 KiB

Raw Blame History