There are few ways in which I can phrase my question. I find documentation lacking around how to use an artifact from a previous stage - specifically the example here.
My use case is I'm using a docker stage to makepkg an arch linux package, which requires many build-time dependencies (including a 500MB go language toolkit, creation of a non-root user etc), and I don't want to keep those in the image.
Inside first stage, do I need to COPY the resulting pkg.tar.xz for using it with COPY --from= inside the second stage? What's the lifetime of this artifact?
