diff --git a/inventory/group_vars/horizon_all.yml b/inventory/group_vars/horizon_all.yml
index 1f82a18922..c635514956 100644
--- a/inventory/group_vars/horizon_all.yml
+++ b/inventory/group_vars/horizon_all.yml
@@ -30,6 +30,7 @@ horizon_enable_octavia_ui: "{{ (groups['octavia-infra_all'] is defined) and (gro
 horizon_enable_neutron_fwaas: "{{ neutron_plugin_base is defined and (neutron_plugin_base | intersect(['firewall', 'firewall_v2']) | length > 0) }}"
 horizon_enable_neutron_vpnaas: "{{ neutron_plugin_base is defined and 'vpnaas' in neutron_plugin_base }}"
 horizon_enable_senlin_ui: "{{ (groups['senlin_all'] is defined) and (groups['senlin_all'] | length > 0) }}"
+horizon_enable_zun_ui: "{{ (groups['zun_all'] is defined) and (groups['zun_all'] | length > 0) }}"
 horizon_enable_ha_router: "{{ neutron_plugin_type.split('.')[0] == 'ml2' and (groups['neutron_l3_agent'] | length >= 2) }}"
 
 # Ensure that the package state matches the global setting
diff --git a/tests/roles/bootstrap-host/templates/user_variables_zun.yml.j2 b/tests/roles/bootstrap-host/templates/user_variables_zun.yml.j2
index f00b5383f1..7cc89ac086 100644
--- a/tests/roles/bootstrap-host/templates/user_variables_zun.yml.j2
+++ b/tests/roles/bootstrap-host/templates/user_variables_zun.yml.j2
@@ -16,6 +16,10 @@
 tempest_test_whitelist:
   - zun_tempest_plugin.tests.tempest.api
 
+tempest_test_blacklist:
+  - test: zun_tempest_plugin.tests.tempest.api.test_containers.TestContainer.test_run_container_with_image_driver_glance
+    reason: This test requires direct access to the Docker daemon API on localhost
+
 tempest_tempest_conf_overrides:
   container_service:
-    min_microversion: 1.12
+    min_microversion: 1.27