Running a shiny app in a docker container

I recently went looking for a tutorial on hosting a shiny app inside a docker container for a friend. There are a loads of tutorials available, but this one from Juan Orduz is my favourite. It’s short, to the point, and covers exactly what you need to get started at the perfect level of detail. It’s a couple of years old now though and there are a few ways we can tweak it to make it a little more …