diff --git a/installers/openstack/group_vars/all.yml b/installers/openstack/group_vars/all.yml
index ce0f9c1..62cabc3 100644
--- a/installers/openstack/group_vars/all.yml
+++ b/installers/openstack/group_vars/all.yml
@@ -17,7 +17,7 @@
 
 osm_installer_path: /usr/share/osm-devops/installers/install_osm.sh
 
-prefix: server
+server_name: server-osm
 
 cloud_name:
 
@@ -27,7 +27,13 @@
 
 installer_args:
 
-os_key_name: ansible-key
+userdata_file:
+
+local_userdata:
+
+os_key_name: osm-ansible-key
+
+key_file:
 
 os_flavor:
   name: medium-4-cpu-8-gb-40-disk
@@ -36,7 +42,7 @@
   disk: 40
 
 servers:
-  - name: osm
+  - name: '1'
     user: ubuntu
     image: ubuntu1804
     image_url: https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img