Docker-Compose-in-Concourse image.
The canonical Docker-in-Docker docker:dind image doesn't
work in Concourse. I'm guessing because it is optimized for a Docker runtime, whereas Concourse
is using Garden for running the images.
This image is based in the oficial docker-image-resource from Concourse, optimized for tasks steps (as opposed to resources). The alternatives (some of them linked below) follow a similar approach, however, they haven't been updated in quite some time.