kafka-compose.yaml

version: "3"

networks:
  kafka_network:
    name: kafka_network
    external: true

services:
  # Kafka related containers
  zookeeper1:
    image: confluentinc/cp-zookeeper:7.2.1
    hostname: zookeeper1
    container_name: zookeeper1
    networks:
      - kafka_network
    ports:
      - "2181:2181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_SERVER_ID: 1
      ZOOKEEPER_SERVERS: zookeeper1:2888:3888

  kafka1:
    image: confluentinc/cp-kafka:7.2.1
    hostname: kafka1
    container_name: kafka1
    networks:
      - kafka_network
    ports:
      - "19092:19092"
      - "29092:29092"
      - "9999:9999"
    environment:
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka1:9092,EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:19092,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: "zookeeper1:2181"
      KAFKA_BROKER_ID: 1
      KAFKA_LOG4J_LOGGERS: "kafka.controller=INFO,kafka.producer.async.DefaultEventHandler=INFO,state.change.logger=INFO"
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_JMX_PORT: 9999
      KAFKA_JMX_HOSTNAME: ${DOCKER_HOST_IP:-127.0.0.1}
      KAFKA_AUTHORIZER_CLASS_NAME: kafka.security.authorizer.AclAuthorizer
      KAFKA_ALLOW_EVERYONE_IF_NO_ACL_FOUND: "true"
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"
    depends_on:
      - zookeeper1

  # WEB UI for viewing kafka
  kafka-ui-service:
    container_name: kafka-ui-service
    image: quay.io/cloudhut/kowl:v1.4.0
    volumes:
      - ./config.yaml:/etc/kowl/config.yaml
    networks:
      - kafka_network
    ports:
      - "8080:8080"
    entrypoint: ./kowl --config.filepath=/etc/kowl/config.yaml
    depends_on:
      - kafka1
    restart: on-failure # to make sure it restarts and tries to connect to kafka incase of failure