docker-compose.yml

version: "3.8"

services:

  mysql:
    image: mysql:8.1.0
    container_name: mysql
    restart: unless-stopped
    ports:
      - "3306:3306"
    environment:
      - MYSQL_ROOT_PASSWORD=secret
      - MYSQL_DATABASE=bitcoindb
    healthcheck:
      test: "mysqladmin ping -u root -p$${MYSQL_ROOT_PASSWORD}"

  zookeeper:
    image: confluentinc/cp-zookeeper:7.4.1
    container_name: zookeeper
    restart: unless-stopped
    ports:
      - "2181:2181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
    healthcheck:
      test: "echo stat | nc localhost $$ZOOKEEPER_CLIENT_PORT"

  kafka:
    image: confluentinc/cp-kafka:7.4.1
    container_name: kafka
    restart: unless-stopped
    depends_on:
      - zookeeper
    ports:
      - "29092:29092"
    environment:
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092,PLAINTEXT_HOST://localhost:29092
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
    healthcheck:
      test: [ "CMD", "nc", "-z", "localhost", "9092" ]

  kafdrop:
    image: obsidiandynamics/kafdrop:3.31.0
    container_name: kafdrop
    restart: unless-stopped
    depends_on:
      - kafka
    ports:
      - "9000:9000"
    environment:
      KAFKA_BROKERCONNECT: kafka:9092
    healthcheck:
      test: "curl -f http://localhost:9000 || exit 1"