Add missing hidden option to cluster template

Without this patch, starting from Train, a user is not able to create or
update a cluster template on the Horizon UI.

Story: 2006953
Task: 37638

Change-Id: I214e8bad1dbabfd2e82d6d195152289a89d40e8d

magnum_ui/static/dashboard/container-infra/cluster-templates/update/update.service.js

@@ -71,6 +71,8 @@
           ? response.data.server_type : "";
         config.model.public = response.data.public
           ? response.data.public : false;
+        config.model.hidden = response.data.hidden
+          ? response.data.hidden : false;
         config.model.registry_enabled = response.data.registry_enabled
           ? response.data.registry_enabled : false;
         config.model.tls_disabled = response.data.tls_disabled

magnum_ui/static/dashboard/container-infra/cluster-templates/workflow/workflow.service.js

@@ -110,6 +110,10 @@
             title: gettext('Public'),
             type: 'boolean'
           },
+          'hidden': {
+            title: gettext('Hidden'),
+            type: 'boolean'
+          },
           'registry_enabled': {
             title: gettext('Enable Registry'),
             type: 'boolean'
@@ -269,13 +273,15 @@
                     {
                       key: 'public'
                     },
+                    {
+                      key: 'hidden'
+                    },
                     {
                       key: 'registry_enabled'
                     },
                     {
                       key: 'tls_disabled'
                     }
-
                   ]
                 }
               ],
@@ -467,6 +473,7 @@
         coe: "",
         server_type: "",
         public: "",
+        hidden: "",
         registry_enabled: "",
         tls_disabled: "",
         image_id: "",

releasenotes/notes/bugfix-cluster-template-hidden-arg-38909eaa92bd8d56.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fix an issue where a user was unable to create or update a cluster template
+    on Horizon due to missing hidden option expected by the API.