We use a Docker Compose setup for our team's devcontainer. It's defined right in the repo alongside the Dockerfile used to build our image. Our build scripts are all set up to start/stop/use the container automatically. Integration with Vscode's devcontainer system will come next.

It's been a great way for us to make sure that developers and CI/CD get exactly the same build environment, mount-points, paths, network access, permissions, etc.

It's been a super solid tool overall, and I'm pretty happy with it. The only thing that would make our setup better would be if we could figure out how to go rootless/daemonless with it.