docker-compose.yml

version: "3.7"
services:
  postgres:
    image: postgres:14
    ports:
      - "5432:5432"
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
    networks:
      - microservices-network

  zookeeper:
    image: confluentinc/cp-zookeeper:5.5.3
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    networks:
      - microservices-network
    ports:
      - "2181:2181"
  
  kafka:
    image: confluentinc/cp-enterprise-kafka:5.5.3
    depends_on:
      - zookeeper
    environment:
      KAFKA_ZOOKEEPER_CONNECT: "zookeeper:2181"
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:29092,PLAINTEXT_HOST://localhost:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
      KAFKA_BROKER_ID: 1
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_JMX_PORT: 9991
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'true'
      KAFKA_CFG_AUTO_CREATE_TOPICS_ENABLE: 'true'
      KAFKA_NUM_PARTITIONS: 3
      KAFKA_DEFAULT_REPLICATION_FACTOR: 1
    ports:
      - "9092:9092"
      - "29092:29092"
    networks:
      - microservices-network

  kafka-init:
    image: confluentinc/cp-kafka:7.5.0
    container_name: kafka-init
    depends_on: 
      - kafka
    entrypoint: ['/bin/sh', '-c']
    command: |
      "
      echo 'Waiting for Kafka to be ready...'
      sleep 10
      
      echo 'Creating topics...'
      kafka-topics --bootstrap-server kafka:9092 --create --if-not-exists --topic transaction-creation-topic --partitions 3 --replication-factor 1
      kafka-topics --bootstrap-server kafka:9092 --create --if-not-exists --topic anti-fraud-validation-topic --partitions 3 --replication-factor 1
      
      echo 'Listing topics...'
      kafka-topics --bootstrap-server kafka:9092 --list
      
      echo 'Topics created successfully!'
      "
    networks:
      - microservices-network

networks:
  microservices-network:
    driver: bridge