// This assembly is included in the following assemblies:
//
// assembly-deployment-configuration.adoc

[id='assembly-config-kafka-{context}']
= Kafka cluster configuration

This section describes how to configure a Kafka deployment in your Strimzi cluster.
A Kafka cluster is deployed with a ZooKeeper cluster. The deployment can also include the Topic Operator and User Operator, which manage Kafka topics and users.

You configure Kafka using the `Kafka` resource.
Configuration options are also available for ZooKeeper and the Entity Operator within the `Kafka` resource.
The Entity Operator comprises the Topic Operator and User Operator.

The full schema of the `Kafka` resource is described in the xref:type-Kafka-reference[].

.Listener configuration
You configure listeners for connecting clients to Kafka brokers.
For more information on configuring listeners for connecting brokers, see xref:configuration-points-listeners-{context}[Listener configuration].

.Authorizing access to Kafka
You can configure your Kafka cluster to allow or decline actions executed by users.
For more information on securing access to Kafka brokers, see xref:assembly-securing-kafka-str[Managing access to Kafka].

.Managing TLS certificates
When deploying Kafka, the Cluster Operator automatically sets up and renews TLS certificates to enable encryption and authentication within your cluster.
If required, you can manually renew the cluster and client CA certificates before their renewal period ends.
You can also replace the keys used by the cluster and client CA certificates.
For more information, see xref:proc-renewing-ca-certs-manually-{context}[Renewing CA certificates manually] and xref:proc-replacing-private-keys-{context}[Replacing private keys].

.Additional resources

* For more information about Apache Kafka, see the http://kafka.apache.org[Apache Kafka website^].

//procedure to configure Kafka
include::../../modules/configuring/proc-config-kafka.adoc[leveloffset=+1]
//entity operator config
include::assembly-kafka-entity-operator.adoc[leveloffset=+1]
//storage considerations
include::assembly-storage.adoc[leveloffset=+1]
//scaling Kafka clusters
include::assembly-scaling-clusters.adoc[leveloffset=+1]
//incorporating jmxtrans metrics
ifdef::Metrics[]
include::assembly-jmxtrans.adoc[leveloffset=+1]
endif::Metrics[]
//windows (time) for maintenance
include::assembly-maintenance-time-windows.adoc[leveloffset=+1]
//connecting to ZooKeeper from terminal
include::../../modules/configuring/proc-connecting-to-zookeeper.adoc[leveloffset=+1]
//steps to delete kafka, zookeeper nodes
include::../../modules/configuring/proc-manual-delete-pod-pvc-kafka.adoc[leveloffset=+1]
include::../../modules/configuring/proc-manual-delete-pod-pvc-zookeeper.adoc[leveloffset=+1]
//Kafka cluster resources created
include::../../modules/configuring/ref-list-of-kafka-cluster-resources.adoc[leveloffset=+1]
