diff --git a/defaults/openstack/init.yml b/defaults/openstack/init.yml
index e6dd320..284672a 100644
--- a/defaults/openstack/init.yml
+++ b/defaults/openstack/init.yml
@@ -39,3 +39,6 @@
     # Apache mods defaults
     apache_mods_status_enabled: True
     apache_mods_status_status: 'disabled'
+    # Horizon
+    # 'direct' mode will require cors on glance side to be enabled.
+    horizon_images_upload_mode: 'legacy'
diff --git a/horizon/server/cluster.yml b/horizon/server/cluster.yml
index 1d1f5eb..0cd20d7 100644
--- a/horizon/server/cluster.yml
+++ b/horizon/server/cluster.yml
@@ -16,6 +16,7 @@
       plugin: {}
       session:
         engine: "cache"
+      images_upload_mode: ${_param:horizon_images_upload_mode}
   apache:
     server:
       modules:
diff --git a/horizon/server/single.yml b/horizon/server/single.yml
index 2555a50..bd2ea7b 100644
--- a/horizon/server/single.yml
+++ b/horizon/server/single.yml
@@ -14,6 +14,7 @@
       plugin: {}
       session:
         engine: "cache"
+      images_upload_mode: ${_param:horizon_images_upload_mode}
   apache:
     server:
       modules: