Support for .docker-version file?

[mtougeron]

It would be really nice if this tool supported something like a .docker-version file much like pyenv or rbenv do.

[rgbkrk]

We support a DOCKER_VERSION environment variable that a plain "dvm use" will pick up. Does that work for the same intent?

[mtougeron]

I've been using that but what I like about the .docker-version file concept is that it automatically changes the version I'm using based on what directory I'm in.

[rgbkrk]

Do you still have to run dvm use in the directory?

[carolynvs]

You would still have to call dvm use unless we also added a shim for the docker binary. Here's how pyenv and rbenv does it, https://github.com/yyuu/pyenv#understanding-shims.