ci: add full-node tests (#920)

diff --git a/images/libvirtd/Earthfile b/images/libvirtd/Earthfile
index 31792d2..e6b01fe 100644
--- a/images/libvirtd/Earthfile
+++ b/images/libvirtd/Earthfile
@@ -1,5 +1,7 @@
 VERSION 0.7
 
+ARG --global REGISTRY=ghcr.io/vexxhost/atmosphere
+
 platform-image:
   ARG RELEASE=zed
   FROM ../cloud-archive-base+image --RELEASE=${RELEASE}
@@ -14,7 +16,7 @@
   END
   DO ../+APT_INSTALL --PACKAGES="ceph-common cgroup-tools dmidecode ebtables iproute2 ipxe-qemu kmod libvirt-clients libvirt-daemon-system openssh-client openvswitch-switch ovmf pm-utils qemu-block-extra qemu-efi qemu-kvm seabios"
   DO ../+CREATE_PROJECT_USER --PROJECT=nova
-  SAVE IMAGE --push ghcr.io/vexxhost/atmosphere/libvirtd:${RELEASE}
+  SAVE IMAGE --push ${REGISTRY}/libvirtd:${RELEASE}
 
 image:
   BUILD --platform linux/amd64 --platform linux/arm64 +platform-image