Question about docker build args and pants dependency inference. We use the pattern

ARG SOME_IMAGE="path/to/some-image/target"
FROM $SOME_IMAGE

for dev builds, letting pants build the image dependency. However, in our CI pipeline we often host the image

FROM

images in our internal registry, so we use

--docker-build-arg "SOME_IMAGE=<some-image-uri>

. This works for building the image, but pants is also still building the

path/to/some-image/target

only to then not use it. Is this a bug or a feature? 🙂 It's problematic for us because we do not have internet access in our builds, but

some-image

uses

apt

. We would prefer if pants inspected the build args before resolving image dependencies, to not trigger docker builds that are not going to be used.

yeah, that sounds like it should. mind filling a bug for this? 🙏 🙂

Finally got around to writing this https://github.com/pantsbuild/pants/issues/18004