Create KafkaCluster using the CLI

To create a Kafka cluster using the CLI, run the following commands.

Verify that Zookeeper is installed on the cluster.
```
kubectl get pods -n zookeeper
```
If the Zookeeper is not installed, run:
```
smm sdm zookeeper install
```
If you want to install Zookeeper using GitOps methods, see Deploy ZooKeeper cluster application.
Create a Kafka cluster.
```
smm sdm cluster create
```
This command creates the following resources:
- A service account called kafka-cluster, which is used by the Kafka broker pods.
- A KafkaCluster custom resource with:
  - 2 Kafka brokers
  - 2 internal listeners (port: 29092, 29093)
    - The name of the service depends on the KafkaCluster.spec.headlessServiceEnabled value. If the boolean value KafkaCluster.spec.headlessServiceEnabled is true then the service is kafka-headless:29092 else kafka-all-broker:29092 (load balancing takes place at this address).
  - 10GB broker log dir storage
  - Zookeeper address: zookeeper-server-client.zookeeper:2181

Verify that the Kafka cluster is running.

smm sdm cluster get

The output should look similar to:

Namespace  Name    State              Image                                    Alerts  Cruise Control Topic Status  Rolling Upgrade Errors  Rolling Upgrade Last Success
kafka      kafka    ClusterRunning     ghcr.io/banzaicloud/kafka:2.13-3.1.0     0       CruiseControlTopicReady       0                       2023-01-31 20:17:25