builder-common.bu: Prune untagged rhel-coreos-base and node-staging images

- Explicitly target untagged images with
  repository names that bypass the default
  dangling filter. Applied 12h retention policy for
  these specific images.

Signed-off-by: Renata Ravanelli <rravanel@redhat.com>

Author: ravanelli

multi-arch-builders/builder-common.bu

@@ -99,6 +99,14 @@ storage:
           ExecStart=podman volume prune --force --filter="label!=persistent"
           ExecStart=podman image prune --force
           ExecStart=podman image prune --all --external --force --filter until=48h
+          # Added specific cleanup for rhel-coreos-base and node-staging
+          # untagged images older than 12h:
+          ExecStart=/usr/bin/bash -c 'podman images \
+           --filter "reference=registry.ci.openshift.org/coreos/*" \
+           --filter "until=12h" \
+           --format "{{.ID}} {{.Tag}}" \
+           | awk "\$2 == \"<none>\" {print \$1}" \
+           | xargs -r podman rmi -f'
     - path: /home/builder/.config/systemd/user/prune-container-resources.timer
       mode: 0644
       user: