Previously, we had one .dockerignore that would do its best to only have
the binaries and licenses copied into the Docker (or nerdctl, or
buildah). Unfortunately, that meant it had to copy all of bin/server and
bin/cmctl, which could become quite large (I measured 1.6 GB).
Instead of relying on a single .dockerignore file, we copy the licenses
and binaries into a "scratch context" directory. The downside is that
all the binaries are in two different places (bin/server and
bin/scratch/containers). Note that we can't use symlinks because Docker
won't dereference them.
Signed-off-by: Maël Valais <mael@vls.dev>
c09dbb07e4