Is there a way to pass additional CLI arguments to the

docker build

command generated by a

docker image

target? For some reasons I’m installing dependencies into my image with

pip

. I’d like to be able to cache those layers in the GitHub Actions cache, but to do that I need to set the

--cache-to

and

--cache-from

options on the CLI. See: https://docs.docker.com/build/cache/backends/local/ Is that possible in the

BUILD

or

pants.toml

file? I didn’t see an option that looked like a generic

args

thing, although I do see the appropriate mixin classes in

backend/docker/target_types.py

the current answer is unfortunately no. The next best thing as work around that has been explored is to use a

docker

shim script where you may hi-jack the build command and tweaks the args as appropriate for you.

Thanks @curved-television-6568!

There’s a need for fixing this for sure. I’m not currently on a system using Docker, so my contributions towards that backend is very limited for the time being however.

If this is something the project overall is interested in, I might be able to squeeze a few hours from my employer to look at it

Thanks, yea that would be great. Also, I’ll be available if you’d need any guidance along the way.

Thanks!

https://github.com/pantsbuild/pants/issues/18287 and https://github.com/pantsbuild/pants/issues/15199 might be relevant

Thanks!