62 lines
1.9 KiB
Markdown
62 lines
1.9 KiB
Markdown
Docker Compose
|
|
==============
|
|
*(Previously known as Fig)*
|
|
|
|
Compose is a tool for defining and running complex 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.
|
|
|
|
First, you define your app's environment with a `Dockerfile` so it can be
|
|
reproduced anywhere:
|
|
|
|
```Dockerfile
|
|
FROM python:2.7
|
|
WORKDIR /code
|
|
ADD requirements.txt /code/
|
|
RUN pip install -r requirements.txt
|
|
ADD . /code
|
|
CMD python app.py
|
|
```
|
|
|
|
Next, you define the services that make up your app in `docker-compose.yml` so
|
|
they can be run together in an isolated environment:
|
|
|
|
```yaml
|
|
web:
|
|
build: .
|
|
links:
|
|
- db
|
|
ports:
|
|
- "8000:8000"
|
|
db:
|
|
image: postgres
|
|
```
|
|
|
|
Lastly, run `docker-compose up` and Compose will start and run your entire app.
|
|
|
|
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
|
|
|
|
Installation and documentation
|
|
------------------------------
|
|
|
|
- Full documentation is available on [Docker's website](http://docs.docker.com/compose/).
|
|
- If you have any questions, you can talk in real-time with other developers in the #docker-compose IRC channel on Freenode. [Click here to join using IRCCloud.](https://www.irccloud.com/invite?hostname=irc.freenode.net&channel=%23docker-compose)
|
|
|
|
Contributing
|
|
------------
|
|
|
|
[](http://jenkins.dockerproject.com/job/Compose%20Master/)
|
|
|
|
Want to help build Compose? Check out our [contributing documentation](https://github.com/docker/compose/blob/master/CONTRIBUTING.md).
|
|
|