mirror of
https://github.com/tmaier/docker-compose
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65 lines
2.6 KiB
Markdown
65 lines
2.6 KiB
Markdown
# Docker Compose
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[](https://hub.docker.com/r/tmaier/docker-compose/)
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[](https://hub.docker.com/r/tmaier/docker-compose/)
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[](https://github.com/tmaier/docker-compose/issues)
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[](https://github.com/tmaier/docker-compose)
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This docker image installs docker-compose on top of the `docker` image.
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This is very useful for CI pipelines, which leverage "Docker in Docker".
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## Docker versions supported
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There are versions based on different docker versions, e.g. `latest`, `20.10`, `19.03` and `19`.
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docker-compose matches the latest version compatible with the respective docker release.
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Eg, `20.10` includes docker-compose 1.27.4. The `latest` tag always includes the latest docker-compose build.
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All available Docker Engine versions and the respective Docker Compose versions are defined in [`DOCKER_AND_COMPOSE_VERSION_MATRIX`](./DOCKER_AND_COMPOSE_VERSION_MATRIX).
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Please open an issue or a pull request (preferred) [at GitHub](https://github.com/tmaier/docker-compose), if a version is missing.
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## Usage instructions for GitLab CI
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You may use it like this in your `.gitlab-ci.yml` file.
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```yaml
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image: tmaier/docker-compose:latest
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services:
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- docker:dind
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before_script:
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- docker info
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- docker-compose --version
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build image:
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stage: build
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script:
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- docker-compose build
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```
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## How to add support for a new docker version to this repository?
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You must only provide a Pull Request for the file [`DOCKER_AND_COMPOSE_VERSION_MATRIX`](./DOCKER_AND_COMPOSE_VERSION_MATRIX).
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`DOCKER_AND_COMPOSE_VERSION_MATRIX` specifies in the first column the docker version.
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The second column states the most recent release of docker-compose when the docker version has been released.
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You can see the latest matching versions of both by checking their release notes:
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- https://github.com/docker/docker-ce/releases or https://hub.docker.com/_/docker
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- https://github.com/docker/compose/releases
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## Common issues and possible fixes
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### `ERROR: error during connect: Get http://docker:2375/v1.40/info: dial tcp: ...`
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> As of version 19.03, docker:dind will automatically generate TLS certificates and require using them for communication.
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See <https://github.com/tmaier/docker-compose/issues/21#issuecomment-578780163>
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## Author
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[Tobias L. Maier](http://tobiasmaier.info) for [BauCloud GmbH](https://www.baucloud.com)
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