VC UI shows "No added Supervisors or no privileges" message while installing supervisor services

Products

• VMware vCenter Server
• VMware vSphere Kubernetes Service

Issue/Introduction

• VC UI shows "No added Supervisors or no privileges" message while installing supervisor services ("Services" → "Actions" →  "manage service").
  
  
• All CRUD operations on supervisors services from UI does not work.
  
  
• WCP service logs shows similar to below entries :
  
  /var/log/vmware/wcp/wcpsvc.log

YYYY-MM-DDTHH:MM:SSZ error wcp [dataprovider/resourcemodel.go:42] [opID=<id>] Data provider query failed. Err Failed to get cluster resource PackageMetadata in query for Cluster Supervisor Service model with error: Resource Type SupervisorServiceVersion, Identifier <version> is not found.

Environment

• vCenter 8.x
• vCenter 9.x

Cause

This issue is caused when the vCenter was restored from backup. However, the Supervisor is not restored.

Resolution

Restore Supervisor as well after VC restore to perform CRUD operations on Supervisor Services.

Refer Backup and Restore the Supervisor Control Plane for more details.

Workaround:

• Use VAPI/DCLI to perform the operations
  
  
  • SSH in to the vCenter using root.
  • Type dcli +i to use the DCLI in interactive mode.
  • Manage Supervisor Services on VC:
    
    dcli> com vmware vcenter namespacemanagement supervisorservices
The supervisor_services namespace provides namespaces for managing supervisor services that are extensions to the
Supervisor.
    
    
  • Manage Supervisor Service in Supervisor:
    
    dcli> com vmware vcenter namespacemanagement supervisors supervisorservices
The SupervisorServices namespace provides commands to install and manage running instances of Supervisor Services on a
vSphere Supervisor.

More details on APIs available in vSphere Automation APIs for SupervisorServices.