Notebook Execution Environment Information in Metadata

[reallyTG]

🚀 Feature

Expose the environment version that a Notebook runs in in the metadata.

Motivation

I'm trying to pull, edit, and push other user's Kaggle notebooks using the CLI (essentially, I'm trying to automatically "Copy & Edit" them using the CLI). When you "Copy & Edit" on the Kaggle website, the correct environment is propagated to your copy. However, when you do this using the CLI, there is no information about the Notebook environment in the metadata, so when I push a pulled and edited Notebook it locks to the most recent available environment, and consequently there are issues running the Notebook due to version mismatches.

Additional context

None ATM, happy to provide and discuss! (Also, if I missed something obvious and this information is actually available, I am happy to stand corrected.)

[djherbis]

Thanks! This feature doesn't have too much to do with the actual docker image (besides making sure we pin it).

cc @c-h-i-a-m-a-k-a Do you think we can support this for things ipynbs that aren't imported through the editor in the future?

[c-h-i-a-m-a-k-a]

@jplotts and I were actually just discussing this yesterday. It seems possible, but we would just have to support backend embedding.