Watch all namespaces by TopicOperator and UserOperator

[stuartm21]

@schmichri We have a kafka cluster and we are planning to create multiple kafka user and topics in multiple namespaces.
So how can we enable the watchAnyNamespace for TopicOperator and UserOperator in our kafka cluster? Does the following way it will work?

  entityOperator:
    topicOperator:
      watchAnyNamespace: true
    userOperator:
      watchAnyNamespace: true

[scholzj]

There is no support for watching multiple namespaces in the Topic or User operators. You have to follow the API when configuring the custom resources, not make up your own fields ;-)

[stuartm21]

@scholzj But the kafka TopicOperator and UserOperator are already supporting the watchedNamespace , using this tag we can add multiple namespaces with a coma.

In my case, I have kafkatopic-1, kafkatopic-2,.....and kafkatopic-n, kafkauser-1, kafkauser-2,....and kafkauser-n. The kafkatopic-1 and kafkauser-1 are in the namespace customer01 and kafkatopic-2 and kafkauser-2 are in the namespace customer-2 and so on. How can I proceed further in this scenario?

[scholzj]

No, you cannot. The Topic and User operators can watch only one namespace.

[stuartm21]

@scholzj I got a strimzi github issue and I am pasting that here: #5895
Inside this issue a strimzi blog url shared: https://strimzi.io/blog/2021/07/22/using-kubernetes-config-provider-to-load-data-from-secrets-and-config-maps/
Will this work for our situation?

[scholzj]

Sorry, I do not know what your situation is. The Kubernetes Config Provider does not supply the user operator, but it can be used to get credentials from other namespaces. You have to decide if that works for you or not.