Set the relawfirm beta public URL so provision can write that compose file.

inventory/wordpress_sites.yml

@@ -27,6 +27,6 @@ wordpress_sites:
     mount: /mnt/wordpress/relawfirm/wp-content
   - name: relawfirm_beta
     port: 8022
-    url: ""
+    url: http://relawfirm-preview.aimloperations.com
     export: /mnt/AIMLOperationsNAS/wordpress/relawfirm_beta
     mount: /mnt/wordpress/relawfirm_beta/wp-content