Custom Resource Definition

Once the Strimzi Operator is installed, you can deploy a Kafka cluster by applying a Kafka custom resource. Here's an example of a simple Kafka cluster configuration:

apiVersion: kafka.strimzi.io/v1beta2
kind: Kafka
metadata:
  name: my-cluster
  namespace: kafka
spec:
  kafka:
    version: 2.7.0
    replicas: 3
    listeners:
      - name: plain
        port: 9092
        type: internal
        tls: false
      - name: tls
        port: 9093
        type: internal
        tls: true
    config:
      offsets.topic.replication.factor: 3
      transaction.state.log.replication.factor: 3
      transaction.state.log.min.isr: 2
      log.message.format.version: "2.7"
  zookeeper:
    replicas: 3
  entityOperator:
    topicOperator: {}
    userOperator: {}

to apply this configuration (saved into kafka.yaml) to the kubernetes cluster by using the below command.

kubectl apply -f kafka.yaml -n kafka