ci: add full-node tests (#920)

diff --git a/images/cinder/Earthfile b/images/cinder/Earthfile
index ae432c4..66fdc29 100644
--- a/images/cinder/Earthfile
+++ b/images/cinder/Earthfile
@@ -1,5 +1,6 @@
 VERSION 0.7
 
+ARG --global REGISTRY=ghcr.io/vexxhost/atmosphere
 ARG --global PROJECT=cinder
 ARG --global RELEASE=2023.2
 ARG --global PROJECT_REF=8d453fa7b6daf1c1b6105a71f7c660b9036541f3
@@ -18,5 +19,5 @@
   DO ../+APT_INSTALL \
     --PACKAGES "ceph-common lsscsi nvme-cli python3-rados python3-rbd qemu-utils sysfsutils udev util-linux"
   SAVE IMAGE --push \
-    ghcr.io/vexxhost/atmosphere/${PROJECT}:${RELEASE} \
-    ghcr.io/vexxhost/atmosphere/${PROJECT}:${PROJECT_REF}
+    ${REGISTRY}/${PROJECT}:${RELEASE} \
+    ${REGISTRY}/${PROJECT}:${PROJECT_REF}