This docker compose provides 3 broker nodes and 1 zookeeper node Kafka Cluster. This helps to test Kafka application on local instead of a real cluster.

The configurations are bare minimum to start the server and could be changed based on requirement

There is also a Kafka UI application available at http://localhost:8080

docker-compose up

use -d to run in detached mode

If you don't see changes to the cluster after updating the yml, try doing docker compose down and then start the cluster again.