docker - 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 call them Dockerfile?

Answer 1

Don't change the name of the dockerfile if you want to use the autobuilder at hub.docker.com. Don't use an extension for docker files, leave it null. File name should just be: (no extension at all)

Dockerfile

However, now you can name dockerfiles like,

test1.Dockerfile
$ docker build -f dockerfiles/test1.Dockerfile  -t test1_app .

or

Dockerfile.test1
$ docker build -f dockerfiles/Dockerfile.test1  -t test1_app .

This will also work.