using id list for wait_for_container.sh

wait_for_container.sh

@@ -6,8 +6,8 @@ while [ -z $(docker ps -qf "name=emg-pvs_renderer") ]; do
     >&2 echo "Container is unavailable - sleeping"
     sleep 15
   done
-Container=$(docker exec -i $(docker ps -qf "name=emg-pvs_registrar") python3 /var/www/pvs/dev/pvs_instance/manage.py collection summary Emergency)
-while [ -z $Container ]; do
-  >&2 echo "Collection is not created - yet sleeping"
-    sleep 15
+
+while [ -z $(docker exec -i $(docker ps -qf "name=emg-pvs_registrar") python3 /var/www/pvs/dev/pvs_instance/manage.py id list) ]; do
+  >&2 echo "Collection is not created yet - sleeping"
+    sleep 20
   done
\ No newline at end of file