Working example of multiple dev containers for a monorepo ?

[John Bain (KingBain)]

Looking to see if someone has a working example of multiple devcontainers for a monorepo. I have a repo with multiple projects and would like to spin up different containers depending on the project.

I've read the documentation here:

• https://docs.github.com/en/enterprise-cloud@latest/codespaces/setting-up-your-project-for-codespaces/introduction-to-dev-containers#devcontainerjson
• https://github.blog/2022-04-20-codespaces-multi-repository-monorepo-scenarios/
• https://www.youtube.com/watch?v=o5coAL7oE0o&list=PLj6YeMhvp2S6GjVyDHTPp8tLOR0xLGLYb&index=5

but I haven't been able to make whats documented work and I haven't found an example repo to expand on.

Does anyone have an example of it working available to share or a tutorial I can follow ?

TIA

[Chuck Lantz (Chuxel)]

This should work in Codespaces already. Are you trying to use this in the Dev Containers extension? If so, microsoft/vscode-remote-release#7548 is tracking this and Christof Marti (@chrmarti) has been looking into adding it.

[kvten]

Final result:

---

Requirements

• VS Code
• Docker (must be running)
• VS Code extensions:
  • Docker
  • Dev Containers
  • Docker Explorer (optional)

Steps

1. create the dev container folders (*_Dev folders in picture above)
2. create a Dockerfile in each folder (must have this name)
3. modify contents of each Dockerfile

For each dev container folder:

1. click >< button in lower left corner of VS Code Open a remote window
2. click Open folder in container
3. click use Dockerfile and let it finish
4. install VS Code extensions (optional)

To Use

All files in dev container folder will be shared between host and container. Open dev container folder in VS Code and start working.

Comments

• I automated the folder & Dockerfile creation with the create.proj_multi_file function from a Python package I wrote link
• .devcontainer is created automatically

Hope this helps!

[Christof Marti (chrmarti)]

Note that microsoft/vscode-remote-release#7548 is becoming available with the upcoming release of the Dev Containers extension. Codespaces already supports it.