Description
I am not sure, if this is just a missing feature or if there is a reason that the docker/sdk does not support external cache sources.
https://docs.docker.com/engine/reference/commandline/build/#specifying-external-cache-sources
As background information, the docker/sdk for local usage is awesome, but we also run it in our CI for tests and building images.
In CI we dont have a shared docker cache, if we use a custom remote docker cache (which could be possible) we get problems with mounting files. So, the best improvement would be to use external cache sources. (--build-arg BUILDKIT_INLINE_CACHE=1 --cache-from IMAGE:latest)
So my first question is, is this just a missing feature until now or is there a reason that the docker/sdk does not support that?