chore: Add glance images (#815)

diff --git a/Earthfile b/Earthfile
index b08c82a..5546dd4 100644
--- a/Earthfile
+++ b/Earthfile
@@ -49,6 +49,7 @@
   SAVE IMAGE --push ghcr.io/vexxhost/atmosphere:${tag}
 
 images:
+  BUILD ./images/glance+image
   BUILD ./images/cluster-api-provider-openstack+image
 
 pin-images: