Feature request: add dev and test images

[Juice10]

It would be great to make every environment as consistent as possible and create a test and development image based on the production image.

[Aubermean]

Any tips on how to go about making a staging and dev image? I would love to get docker-rails-base working with VSCode remote container config, with both staging and production images too with CI/CD. Maybe you are one step ahead @ledermann ?

[ledermann]

@Aubermean I'm using the base image for building production images with GitHub Actions for a lot of applications. For staging I use the same image as for production.

I don't use Docker for development yet, so I'm one step behind rather than ahead ;-)
But: I think that for development there are completely different requirements, a small image is not important. Currently, I have no plans for supporting local development.