[Bug]: Kafka in KRaft mode doesn't have security.inter.broker.protocol set to SSL

[deanmax]

Bug Description

In the documentation, it stated that when using Kafka in KRaft mode, communication between brokers should be TLS enabled.

However, my brokers still shows security.inter.broker.protocol: PLAINTEXT

And this value doesn't seem to be configurable

Steps to reproduce

No response

Expected behavior

No response

Strimzi version

0.44.0

Kubernetes version

1.29

Installation method

No response

Infrastructure

No response

Configuration files and logs

No response

Additional context

No response

[scholzj]

It has the listener.security.protocol.map set and configures it there. So as far as I know, that overrides whatever the default value is in security.inter.broker.protocol.

[deanmax]

Thanks! I see SSL on port 9091 on my broker, indicating TLS for inter-broker comm

listener.security.protocol.map = CONTROLPLANE-9090:SSL,REPLICATION-9091:SSL,PLAIN-9092:PLAINTEXT,TLS-9093:SSL

Closing issue.