How to name Dockerfiles

Question

I\'m unsure of how to name Dockerfiles. Many on GitHub use Dockerfile without a file extension. Do I give them a name and extension; if so what? Or do I just ca

Answer 1

Dockerfile (custom name and folder):

   docker/app.Dockerfile
   docker/nginx.Dockerfile

Build:

   docker build  -f ./docker/app.Dockerfile .
   docker build  -f ./docker/nginx.Dockerfile .