Docker with Kafka and Kafdrop

docker-compose.yml

version: '3.5'
services:
  zookeeper:
    image: wurstmeister/zookeeper
    ports:
      - 2181:2181

  kafka:
    image: wurstmeister/kafka
    ports:
      - 9092:9092
    environment:
      KAFKA_LISTENERS: "INTERNAL://:29092,EXTERNAL://:9092"
      KAFKA_ADVERTISED_LISTENERS: "INTERNAL://kafka:29092,EXTERNAL://localhost:9092"
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: "INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT"
      KAFKA_INTER_BROKER_LISTENER_NAME: "INTERNAL"
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
    depends_on:
      - zookeeper

  kafdrop:
    image: obsidiandynamics/kafdrop
    restart: "no"
    ports:
      - 9000:9000
    environment:
      KAFKA_BROKERCONNECT: kafka:29092
      JVM_OPTS: "-Xms16M -Xmx48M -Xss180K -XX:-TieredCompilation -XX:+UseStringDeduplication -noverify"
    depends_on:
      - kafka