diff --git a/ansible/group_vars/all.yml b/ansible/group_vars/all.yml
index 6b115c714d14de58e9be068ad7924ee6e4ba47e2..0ddc191c50f10ccda5ab10391de56373d87bc0fd 100644
--- a/ansible/group_vars/all.yml
+++ b/ansible/group_vars/all.yml
@@ -193,6 +193,8 @@ enable_elk: "no"
 enable_mongodb: "no"
 
 ironic_keystone_user: "ironic"
+neutron_keystone_user: "neutron"
+nova_keystone_user: "nova"
 
 # Nova fake driver and the number of fake driver per compute node
 enable_nova_fake: "no"
diff --git a/ansible/roles/neutron/defaults/main.yml b/ansible/roles/neutron/defaults/main.yml
index 5b7887370c6834ac408af676a136ec4ed9e65210..d2d2240693efb864a962a6cfc38dfdf975cff774 100644
--- a/ansible/roles/neutron/defaults/main.yml
+++ b/ansible/roles/neutron/defaults/main.yml
@@ -54,8 +54,6 @@ neutron_internal_address: "{{ kolla_internal_fqdn }}"
 
 neutron_logging_debug: "{{ openstack_logging_debug }}"
 
-neutron_keystone_user: "neutron"
-
 neutron_bridge_name: "br-ex"
 
 openstack_neutron_auth: "{'auth_url':'{{ openstack_auth_v2.auth_url }}','username':'{{ openstack_auth_v2.username }}','password':'{{ openstack_auth_v2.password }}','project_name':'{{ openstack_auth_v2.project_name }}'}"
diff --git a/ansible/roles/nova/defaults/main.yml b/ansible/roles/nova/defaults/main.yml
index 01bdaea9c855f86169700cd23512c815cbbe612d..1fe842357d2ee15aa5d9971ad0d5ba700fc46d90 100644
--- a/ansible/roles/nova/defaults/main.yml
+++ b/ansible/roles/nova/defaults/main.yml
@@ -73,6 +73,4 @@ nova_internal_address: "{{ kolla_internal_fqdn }}"
 
 nova_logging_debug: "{{ openstack_logging_debug }}"
 
-nova_keystone_user: "nova"
-
 openstack_nova_auth: "{'auth_url':'{{ openstack_auth_v2.auth_url }}','username':'{{ openstack_auth_v2.username }}','password':'{{ openstack_auth_v2.password }}','project_name':'{{ openstack_auth_v2.project_name }}'}"
diff --git a/ansible/roles/nova/templates/nova.conf.j2 b/ansible/roles/nova/templates/nova.conf.j2
index b208a833dc63b8a116e95b4ac392a4a893cc9814..ef5fcf0fe27c3ff72d330ed4cdb78e975cc51c08 100644
--- a/ansible/roles/nova/templates/nova.conf.j2
+++ b/ansible/roles/nova/templates/nova.conf.j2
@@ -119,7 +119,7 @@ auth_plugin = password
 project_domain_name = default
 user_domain_id = default
 project_name = service
-username = neutron
+username = {{ neutron_keystone_user }}
 password = {{ neutron_keystone_password }}
 
 [database]
@@ -135,7 +135,7 @@ auth_type = password
 project_domain_id = default
 user_domain_id = default
 project_name = service
-username = nova
+username = {{ nova_keystone_user }}
 password = {{ nova_keystone_password }}
 
 [libvirt]