Kubernetes Secrets Management
The provided sources do not contain sufficient information to write a grounded definition for an undefined concept. The snippets cover topics such as accessing a NATS server via CLI, providing credentials for a private upstream registry, accessing audit log data in Kyma, and various SAP BTP tutorials, but none of them define or describe a concept identified as "undefined." Please provide a valid concept name and relevant source snippets so an accurate definition can be written.