docker-compose.yml

version: "3.6"

services:

  ######################################################################################################################
  # Run an instance of Kafka. It is configured to be able to communicate with producers/consumers from within the docker
  # network at "kafka:9092" and from the host network at "localhost:9091"
  ######################################################################################################################
  kafka:
    image: confluentinc/cp-kafka:7.2.1
    networks:
      - mre-reactive-kafka-consumer-shutdown-demo-network
    container_name: kafka
    ports:
      - 9091:9091
    environment:
      KAFKA_NODE_ID: 1
      KAFKA_INTER_BROKER_LISTENER_NAME:                          CONTAINER
      KAFKA_ADVERTISED_LISTENERS:                                CONTAINER://kafka:9092 , HOST_MACHINE://localhost:9091
      KAFKA_LISTENERS:                      QUORUM://kafka:9093, CONTAINER://kafka:9092 , HOST_MACHINE://kafka:9091
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: QUORUM:PLAINTEXT   , CONTAINER:PLAINTEXT    , HOST_MACHINE:PLAINTEXT
      KAFKA_CONTROLLER_LISTENER_NAMES:      QUORUM
      KAFKA_CONTROLLER_QUORUM_VOTERS: '1@kafka:9093'
      KAFKA_PROCESS_ROLES: 'broker,controller'
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
    volumes:
      - ./docker/kafka/run_workaround.sh:/tmp/run_workaround.sh
      - mre-reactive-kafka-consumer-shutdown-demo-kafka-volume:/var/lib/kafka/data
    command: "bash -c '/tmp/run_workaround.sh && /etc/confluent/docker/run'"

  ######################################################################################################################
  # After Kafka is up and running, initialize a kafka topic named "demo-topic" that can be used by both the
  # producer/consumer applications.
  ######################################################################################################################
  init-kafka:
    image: confluentinc/cp-kafka:7.2.1
    networks:
      - mre-reactive-kafka-consumer-shutdown-demo-network
    depends_on:
      - kafka
    entrypoint: [ '/bin/bash', '-c']
    command: |
      "
      # blocks until kafka is reachable
      kafka-topics --bootstrap-server kafka:9092 --list
      echo -e 'Creating kafka topics if they do not exist already'
      kafka-topics \
        --bootstrap-server kafka:9092 \
        --create \
        --if-not-exists \
        --topic demo-topic \
        --replication-factor 1 \
        --partitions 1
      echo -e 'The following topics exist:'
      kafka-topics --bootstrap-server kafka:9092 --list
      "

volumes:
  mre-reactive-kafka-consumer-shutdown-demo-kafka-volume:

networks:
  mre-reactive-kafka-consumer-shutdown-demo-network:
    driver: bridge