I wrote this up a while ago on Discourse, and now that it's been open to critique for a while, I'm wondering if this is appropriate for a workflow blog?
https://discourse.julialang.org/t/creating-a-docker-base-image-for-faster-deployments/121165?u=mrufsvold
I'm happy to do the PR, but just want to make sure there's interest before I take the time!