secrets "confluent-schema-registry" not found

[benedictmulongo]

When I run:

kubectl -n kafka describe StrimziSchemaRegistry confluent-schema-registry

I get the error secrets "confluent-schema-registry" not found

apiVersion: roundtable.lsst.codes/v1beta1
kind: StrimziSchemaRegistry
metadata:
  name: confluent-schema-registry
spec:
  strimziVersion: v1beta2
  listener: plainext
  serviceType: nodeport
  securityProtocol: plaintext

In the readme file https://github.com/lsst-sqre/strimzi-registry-operator there is no mentions of confluent-schema-registry and which values it should have.

Moreover, how to get access to the schema-registry externally? Is it exposed at an certain port?

kubectl explain StrimziSchemaRegistry.spec

gives me no hints about port or host to access the schema registry.