3c8a56dbf3
This is a bunch of OTEL initialization code. It's all in `internal/` because there are re-usable parts here, but Compose isn't the right spot. Once we've stabilized the interfaces a bit and the need arises, we can move it to a separate module. Currently, a single span is produced to wrap the root Compose command. Compose will respect the standard OTEL environment variables as well as OTEL metadata from the Docker context. Both can be used simultaneously. The latter is intended for local system integration and is restricted to Unix sockets / named pipes. None of this is enabled by default. It requires setting the `COMPOSE_EXPERIMENTAL_OTEL=1` environment variable to gate it during development. Signed-off-by: Milas Bowman <milas.bowman@docker.com> |
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| internal | ||
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| pkg | ||
| .dockerignore | ||
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| .golangci.yml | ||
| BUILDING.md | ||
| CONTRIBUTING.md | ||
| Dockerfile | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| NOTICE | ||
| README.md | ||
| codecov.yml | ||
| docker-bake.hcl | ||
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README.md
Table of Contents
- Docker Compose v2
- About update and backward compatibility
- Where to get Docker Compose
- Quick Start
- Contributing
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.
About update and backward compatibility
Docker Compose V2 is a major version bump release of Docker Compose. It has been completely rewritten from scratch in Golang (V1 was in Python). The installation instructions for Compose V2 differ from V1. V2 is not a standalone binary anymore, and installation scripts will have to be adjusted. Some commands are different.
For a smooth transition from legacy docker-compose 1.xx, please consider installing compose-switch to translate docker-compose ... commands into Compose V2's docker compose .... . Also check V2's --compatibility flag.
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-pluginsOR/usr/local/libexec/docker/cli-plugins/usr/lib/docker/cli-pluginsOR/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
Dockerfileso it can be reproduced anywhere. - Define the services that make up your app in
docker-compose.ymlso they can be run together in an isolated environment. - Lastly, run
docker compose upand 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.