docker-compose.yml

version: '3.8'

services:
  zookeeper:
    image: wurstmeister/zookeeper:latest
    ports:
      - '2181:2181'

  kafka:
    image: wurstmeister/kafka:latest
    ports:
      - '9092:9092' # Expose Kafka on port 9092
      - '29092:29092' # Internal communication port for Docker network
    environment:
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181' # Connect to ZooKeeper
      KAFKA_ADVERTISED_LISTENERS: 'PLAINTEXT://kafka:29092,PLAINTEXT_HOST://localhost:9092' # Define advertised listeners with different ports
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT' # Map protocols
      KAFKA_LISTENERS: 'PLAINTEXT://0.0.0.0:29092,PLAINTEXT_HOST://0.0.0.0:9092' # Listen on all interfaces with different ports

  kafka-ui:
    image: provectuslabs/kafka-ui:latest
    ports:
      - '8080:8080' # Expose Kafka UI on port 8080
    environment:
      KAFKA_CLUSTERS_0_NAME: 'Local Cluster' # Name for the cluster in the UI
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: 'kafka:29092' # Connect to Kafka service using internal port
      DYNAMIC_CONFIG_ENABLED: 'true' # Enable dynamic configuration

networks:
  default:
    driver: bridge