FYI I was able to get docker build caching working with the GHA cache backend - https://github.com/pantsbuild/example-docker/pull/12 I'm going to also investigate adding global default options for image cache as I think it's likely to be the same settings across all images for most use cases. I noticed that the Docker

--no-cache

CLI flag only applies to local build cache, so setting this does not override

--cache-to

and

--cache-from

. I am thinking of using the related pants docker target option

build_no_cache

to apply that behaviour though, so there's a way to run cache-busting builds .

Nice!! Very cool What do you think about using

__defaults__

to do global defaults? (Eg have something in a top level

BUILD

)

Wow I did not know that feature existed. Yes I think that would work just fine for now.