The uuid package in distribution was created as a utility for the distribution
project itself, to cut down external dependencies (see [1][1]).
For compose, this has the reverse effect, as it now brings all the dependencies
of the distribution module with it.
This patch switches to the uuid generation to crypto/rand to produce a random
id. I was considering using a different uuid implementation, or docker's
"stringid.GenerateRandomID", but all of those are doing more than needed,
so keep it simple.
Currently, this change has little effect, because compose also uses the
distribution module for other purposes, but the distribution project is
in the process of moving the "reference" package to a separate module,
in which case we don't want to depend on the distribution module only for
the uuid package.
[1]: 36e34a55ad
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Table of Contents
- Docker Compose v2
- About update and backward compatibility
- Where to get Docker Compose
- Quick Start
- Contributing
- Legacy
Docker Compose v2
Docker Compose is a tool for running multi-container applications on Docker
defined using the Compose file format.
A Compose file is used to define how one or more containers that make up
your application are configured.
Once you have a Compose file, you can create and start your application with a
single command: docker compose up
.
Where to get Docker Compose
Windows and macOS
Docker Compose is included in Docker Desktop for Windows and macOS.
Linux
You can download Docker Compose binaries from the release page on this repository.
Rename the relevant binary for your OS to docker-compose
and copy it to $HOME/.docker/cli-plugins
Or copy it into one of these folders to install it system-wide:
/usr/local/lib/docker/cli-plugins
OR/usr/local/libexec/docker/cli-plugins
/usr/lib/docker/cli-plugins
OR/usr/libexec/docker/cli-plugins
(might require making the downloaded file executable with chmod +x
)
Quick Start
Using Docker Compose is 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 Compose file looks like this:
services:
web:
build: .
ports:
- "5000:5000"
volumes:
- .:/code
redis:
image: redis
Contributing
Want to help develop Docker Compose? Check out our contributing documentation.
If you find an issue, please report it on the issue tracker.
Legacy
The Python version of Compose is available under the v1
branch.