When using REST based Workflows and/or Actions such "Add a Rest Host" fails where you are leveraging load balanced Kubernetes instances with Ingress Controllers set on the target server.
The Server Name Indicator (SNI) is not currently implement as part of the certificate passed to the target server from the vRO, hence leading a "Kubernetes Fake Certificate" being pulled instead of the Certificate Authority generated certificate as intended.
Environment
Aria Orchestrator 8.18.x
Cause
This issue occurs as the server expects the certificate with the SNI completed.
Resolution
Fix implemented and will be addressed in a future release.