I want to make a macro that autogenerates a

pex_binary

and

docker_image

target for me for the majority of simple cases where we're just doing the standard base image and copying in a pex. Any recommendations on how to autopopulate the

COPY

line of the

Dockerfile

? I'd like to avoid requiring the user to specify the full path to the module that serves as the entrypoint for the

pex_binary

, but I'm not sure there's another way.

Have you tried

build_file_dir()

?

I have not!

It's a function you can use in build files, it returns a

pathlib.PurePath

to the current build file dir

The thread at https://pantsbuild.slack.com/archives/C046T6T9U/p1668559186539269 has what we use (using

build_file_dir

)

Wow, I wish I had explored macros sooner! Our containerization process just got much simpler.