Add example recipes to build a single image

Sample recipes with new recipe action

Fixes: APERTIS-5675

apertis-ostree-commit.yaml

@@ -80,6 +80,12 @@ actions:
     description: "Empty /etc/machine-id so it's regenerated on first boot with an unique value"
     command: truncate -s0 "${ROOTDIR}/etc/machine-id"
 
+  # work around the Debos isssue in https://phabricator.apertis.org/T4308
+  - action: run
+    chroot: false
+    description: "Drop resolv.conf so the appropriate one gets created at runtime"
+    command: rm "${ROOTDIR}/etc/resolv.conf"
+
   - action: run
     chroot: false
     script: scripts/ostree-convert-from-debian