switch to using prereq's only xos-base container
diff --git a/roles/xos-vm-install/files/xos-setup-cord-pod-playbook.yml b/roles/xos-vm-install/files/xos-setup-cord-pod-playbook.yml
index 79b25d2..5f3bcd8 100644
--- a/roles/xos-vm-install/files/xos-setup-cord-pod-playbook.yml
+++ b/roles/xos-vm-install/files/xos-setup-cord-pod-playbook.yml
@@ -50,5 +50,9 @@
       with_items: "{{ xos_images }}"
 
     - name: Pull docker images for XOS
-      shell: "cd {{ xos_repo_dest }}/xos/configurations/{{ xos_configuration }}; sudo docker-compose pull"
+      become: yes
+      command: docker pull {{ item }}
+      with_items:
+        - xosproject/xos-base
+        - xosproject/xos-postgres