Chapter 2. Managed broker configuration

When you deploy Streams for Apache Kafka on OpenShift, you specify broker configuration through the config property of the Kafka custom resource. However, certain broker configuration options are managed directly by Streams for Apache Kafka.

As such, if you are using Streams for Apache Kafka on OpenShift, you cannot configure the following options:

Broker IDs start from 0 (zero) and correspond to the number of broker replicas. Log directories are mounted to /var/lib/kafka/data/kafka-logIDX based on the spec.kafka.storage configuration in the Kafka custom resource. IDX is the Kafka broker pod index.

For a list of exclusions, see the KafkaClusterSpec schema reference.

These exclusions don’t apply when using Streams for Apache Kafka on RHEL. In this case, you need to add these properties in your basic broker configuration to identify your brokers and provide secure access.

...
...

# ...
broker.id = 1
log.dirs = /var/lib/kafka
zookeeper.connect = zoo1.my-domain.com:2181,zoo2.my-domain.com:2181,zoo3.my-domain.com:2181
listeners = internal-1://:9092
authorizer.class.name = kafka.security.auth.SimpleAclAuthorizer
ssl.truststore.location = /path/to/truststore.jks
ssl.truststore.password = 123456
ssl.client.auth = required
# ...