Cannot delete NATS as stream exists

[grischperl]

Description

Once the NATS module is installed on a cluster, it cannot be deleted even though there are no subscriptions. Upon trying to delete the NATS module, the module remains in the status Deleting with the Error Message:

Cannot delete NATS as stream exists.

A SAP stream exists right from the beginning.

Steps to recreate

• Create a cluster
• Enable the Kyma Environment
• Enable the NATS module
• Delete the NATS module
  --> NATS module is stuck in deletion

ToDo:

• What are the different ways to delete the module via UI and how do they differ?
• NATS module can be removed even if SAP stream exists.
• Update state accordingly.

Acceptance

• NATS module can be removed when only SAP stream exists and no consumer exist on the stream.
• If the module cannot be deleted, the state should be set to Warning.