version: '3.7'

services:
  zookeeper-1:
    image: confluentinc/cp-zookeeper:latest
    ports:
      - "2181:2181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_SERVER_ID: 1
      ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zookeeper-2:2888:3888;zookeeper-3:2888:3888

  zookeeper-2:
    image: confluentinc/cp-zookeeper:latest
    ports:
      - "2182:2182"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2182
      ZOOKEEPER_SERVER_ID: 2
      ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zookeeper-2:2888:3888;zookeeper-3:2888:3888
  
  zookeeper-3:
    image: confluentinc/cp-zookeeper:latest
    ports:
      - "2183:2183"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2183
      ZOOKEEPER_SERVER_ID: 3
      ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zoozookeeper-2:2888:3888;zookeeper-3:2888:3888

  kafka-1:
    image: confluentinc/cp-kafka:latest
    ports:
      - "9092:9092"
      - "29092:29092"
    environment:
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka-1:19092,EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9092,DOCKER://host.docker.internal:29092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,DOCKER:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper-1:2181,zookeeper-2:2182,zookeeper-3:2183"
      KAFKA_BROKER_ID: 1
    depends_on:
      - zookeeper-1
      - zookeeper-2
      - zookeeper-3

  kafka-2:
    image: confluentinc/cp-kafka:latest
    ports:
      - "9093:9093"
      - "29093:29093"
    environment:
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka-2:19093,EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9093,DOCKER://host.docker.internal:29093
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,DOCKER:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper-1:2181,zookeeper-2:2182,zookeeper-3:2183"
      KAFKA_BROKER_ID: 2
    depends_on:
      - zookeeper-1
      - zookeeper-2
      - zookeeper-3

  kafka-3:
    image: confluentinc/cp-kafka:latest
    ports:
      - "9094:9094"
      - "29094:29094"
    environment:
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka-3:19094,EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9094,DOCKER://host.docker.internal:29094
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,DOCKER:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper-1:2181,zookeeper-2:2182,zookeeper-3:2183"
      KAFKA_BROKER_ID: 3
    depends_on:
      - zookeeper-1
      - zookeeper-2
      - zookeeper-3
  
  kafdrop:
    image: obsidiandynamics/kafdrop:latest  
    depends_on:
      - kafka-1 
    ports:
      - 19000:9000  # Maps port 19000 of the host to port 9000 inside the container.
    environment:
      KAFKA_BROKERCONNECT: ${DOCKER_HOST_IP}:9092
      #KAFKA_BROKERCONNECT: dev-events.simbrellang.net:9092
      #KAFKA_BROKERCONNECT: kafka-1:9092
      # kafka-1:29092 
      # JVM_OPTS: "-Xms16M  -Xmx48M -Xss180K -XX:-TieredCompilation -XX:+UseStringDuplication -noverify"
      # JVM_OPTS: "-Xms16M -Xmx48M"