version: "3"

services:
  kafka:
    container_name: kafka
    hostname: kafka
    image: bitnami/kafka:latest
    ports:
      # Flip the ports around, external gets default.
      - "9092:9094"
      - "9094:9092"
    networks:
      - kafka-internal
    volumes:
      - "kafka_data:/bitnami"
    environment:
      # https://hub.docker.com/r/bitnami/kafka/
      - ALLOW_PLAINTEXT_LISTENER=yes
      - KAFKA_CFG_LISTENERS=PLAINTEXT://:9092,CONTROLLER://:9093,EXTERNAL://:9094
      - KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://kafka:9092,EXTERNAL://localhost:9094
      - KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP=CONTROLLER:PLAINTEXT,EXTERNAL:PLAINTEXT,PLAINTEXT:PLAINTEXT
      - KAFKA_CFG_AUTO_CREATE_TOPICS_ENABLE=true

  kafka-ui:
    container_name: kafka-ui
    image: provectuslabs/kafka-ui:latest
    ports:
      - 8080:8080
    networks:
      - kafka-internal
    environment:
      # https://docs.kafka-ui.provectus.io/configuration/misc-configuration-properties
      KAFKA_CLUSTERS_0_NAME: test
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:9092
    depends_on:
      - kafka

volumes:
  kafka_data:
    driver: local

networks:
  kafka-internal: