Add example recipes to build a single image

Sample recipes with new recipe action

Fixes: APERTIS-5675

apertis-ostree-commit.yaml

@@ -87,10 +87,12 @@ actions:
     command: rm "${ROOTDIR}/etc/resolv.conf"
 
   - action: run
+    description: Make the Debian rootfs suitable for OSTree
     chroot: false
     script: scripts/ostree-convert-from-debian
 
   - action: ostree-commit
+    description: Commit to OSTree branch "{{ $branch }}" in repository "{{ $ostree }}"
     repository: {{ $ostree }}
     branch: {{ $branch }}
     subject: {{ $message }}