base: Embed config in image

The idea here is this can be reused by later builds.

Signed-off-by: Colin Walters <walters@verbum.org>

Containerfile.base

@@ -25,7 +25,9 @@ for x in etc/dnf etc/yum.repos.d etc/pki/rpm-gpg; do
 done
 # And copy to the workdir; TODO fix this in rpm-ostree
 cp /etc/yum.repos.d/*.repo base
-env RUST_LOG=debug rpm-ostree experimental compose rootfs --source-root=/repos base/manifest.yaml /target-rootfs
+rpm-ostree experimental compose rootfs --source-root=/repos base/manifest.yaml /target-rootfs
+# Embed the configuration in the image itself, so that it can be used by later builds as well
+cp -a base /target-rootfs/usr/lib/sysimage/base-image-manifests
 EORUN
 
 # This pulls in the rootfs generated in the previous step