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Apache Kafka Cluster

Login as normal user:

oc login -u user

The Kafka Cluster is described in the event-bus-kafka.yml file.

You can deploy or update the Kafka cluster with the following command:

oc apply -f ./configmap/
oc apply -f event-bus-kafka.yml

This cluster is available with the following services:

$ oc get svc
NAME                         TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)                               AGE
event-bus-kafka-bootstrap    ClusterIP   172.30.20.58    <none>        9091/TCP,9092/TCP,9093/TCP            84s
event-bus-kafka-brokers      ClusterIP   None            <none>        9090/TCP,9091/TCP,9092/TCP,9093/TCP   84s
event-bus-zookeeper-client   ClusterIP   172.30.119.58   <none>        2181/TCP                              3m5s
event-bus-zookeeper-nodes    ClusterIP   None            <none>        2181/TCP,2888/TCP,3888/TCP            3m5s

The event-bus-kafka-bootstrap service is used to connect the producers and consumers with this cluster.

  • Port 9092: Unsecured port
  • Port 9093: Secured port
  • Port 9404: Metrics port

We could check the status of this Apache Kafka cluster with:

❯ oc get kafka
NAME        DESIRED KAFKA REPLICAS   DESIRED ZK REPLICAS   READY   WARNINGS
event-bus   3                        3                     True

To describe the Kafka:

oc get kafka event-bus -o yaml

The following pods will be deployed:

❯ oc get pod
NAME                                                READY   STATUS    RESTARTS   AGE
event-bus-entity-operator-5fb8465fd5-s4zs2          3/3     Running   0          55s
event-bus-kafka-0                                   1/1     Running   0          2m30s
event-bus-kafka-1                                   1/1     Running   0          2m30s
event-bus-kafka-2                                   1/1     Running   0          2m30s
event-bus-kafka-exporter-6f7ffb5b8b-dzslg           1/1     Running   0          14s
event-bus-zookeeper-0                               1/1     Running   0          4m11s
event-bus-zookeeper-1                               1/1     Running   0          4m11s
event-bus-zookeeper-2                               1/1     Running   0          4m11s
strimzi-cluster-operator-v0.26.0-747fcdb666-rjf6w   1/1     Running   0          6m7s

References: