Attempting to create a cluster maintenance audit via Horizon fails with an HTTP 500 error due to a missing required property: maintenance_node.

 

Steps to Reproduce:

1. Navigate to the Horizon dashboard.
2. Go to the "Admin" Project.
3. Go to the "Optimization"  section.
4. Go to the "Audit Template"  section.
5. Create an audit template: Goal=cluster_maintaining, Strategie=host_maintenance
6. Go to the "Audit"  section.
7. Attempt to create an audit, with the audit template created before(you can't explicitly specifying a maintenance_node)

 

Observed Behavior:
The system returns the following error message:

 

Error: Failed to create audit.
'maintenance_node' is a required property
Failed validating 'required' in schema:
{
  'properties': {
    'backup_node':

{       'description': 'The name of the compute node which will backup the maintenance node.',       'type': 'string'     }

,
    'maintenance_node':

{       'description': 'The name of the compute node which need maintenance',       'type': 'string'     }

  },
  'required': ['maintenance_node']
}
On instance: {} (HTTP 500)

 

Expected Behavior:
The UI should validate the form and prevent submission if the required maintenance_node field is missing. A user-friendly error message should be displayed instead of returning an HTTP 500 error.

Impact:
This issue prevents users from creating maintenance audits via the Horizon UI and may lead to confusion due to the unclear error feedback.

Suggested Fix:
Implement client-side validation to ensure the maintenance_node field is required before submission, and handle missing data more gracefully on the backend to avoid 500 errors.