Another great book by David Bryant Copeland.
Where I had trouble in the past# I purchased the PragProg book Docker for Rails Developers several years ago. It was good, but a little dated considering recent docker practices, and I shelved it after running into some speedbumps (it used some webpack/er/ tooling that was hard for me to get running).
Not too long after that, I ran into some issues with a friend’s legacy app.