docker-compose.yml

services:
  # Infrastructure Services
  postgres:
    image: postgres:14-alpine
    container_name: nexuspay-postgres
    ports:
      - "5432:5432"
    environment:
      - POSTGRES_USER=nexuspay_user
      - POSTGRES_PASSWORD=nexuspay_password
      - POSTGRES_DB=account_db
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - nexuspay-network
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U nexuspay_user -d account_db"]
      interval: 10s
      timeout: 5s
      retries: 5

  kafka:
    image: confluentinc/cp-kafka:7.4.0
    container_name: kafka
    ports:
      - "9092:9092"
      - "9093:9093"
    environment:
        KAFKA_NODE_ID: 1
        KAFKA_PROCESS_ROLES: 'broker,controller'
        KAFKA_CONTROLLER_QUORUM_VOTERS: '1@kafka:9093'
        KAFKA_LISTENERS: 'PLAINTEXT_HOST://0.0.0.0:9092,PLAINTEXT_DOCKER://0.0.0.0:29092,CONTROLLER://0.0.0.0:9093'
        KAFKA_ADVERTISED_LISTENERS: 'PLAINTEXT_HOST://localhost:9092,PLAINTEXT_DOCKER://kafka:29092'
        KAFKA_CONTROLLER_LISTENER_NAMES: 'CONTROLLER'
        KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'CONTROLLER:PLAINTEXT,PLAINTEXT_DOCKER:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT'
        KAFKA_INTER_BROKER_LISTENER_NAME: 'PLAINTEXT_DOCKER'
        KAFKA_LOG_DIRS: '/var/lib/kafka/data'
        CLUSTER_ID: 'MkU3OEVBNTcwNTJENDM2Qk'
        KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'true'
        # Fix replication factor for single-node setup
        KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
        KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
        KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
        KAFKA_DEFAULT_REPLICATION_FACTOR: 1
        KAFKA_MIN_INSYNC_REPLICAS: 1
        # Reduce logging verbosity
        KAFKA_LOG4J_LOGGERS: "org.apache.kafka.image.loader.MetadataLoader=WARN,kafka.controller=WARN,org.apache.kafka.controller=WARN"
        KAFKA_LOG4J_ROOT_LOGLEVEL: "WARN"
    volumes:
      - kafka_data:/var/lib/kafka/data
    networks:
      - nexuspay-network
    healthcheck:
      test: ["CMD-SHELL", "kafka-topics --bootstrap-server localhost:9092 --list"]
      interval: 30s
      timeout: 10s
      retries: 5

  redis:
    image: redis:latest
    container_name: nexuspay-redis
    ports:
      - "6379:6379"
    volumes:
      - redis_data:/data
    networks:
      - nexuspay-network
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5

  # Service Discovery
  discovery-server:
    build:
      context: ./discovery-server
      dockerfile: Dockerfile
      args:
        BUILDKIT_INLINE_CACHE: 1
    container_name: nexuspay-discovery-server
    ports:
      - "8761:8761"
    environment:
      - SPRING_PROFILES_ACTIVE=docker
      - JAVA_OPTS=-Xmx512m -XX:+UseContainerSupport
    networks:
      - nexuspay-network
    healthcheck:
      test: ["CMD-SHELL", "curl -f http://localhost:8761/actuator/health || exit 1"]
      interval: 30s
      timeout: 10s
      retries: 5

  # Core Services
  account-service:
    build:
      context: ./account-service
      dockerfile: Dockerfile
      args:
        BUILDKIT_INLINE_CACHE: 1
    container_name: nexuspay-account-service
    ports:
      - "8081:8081"
    environment:
      - SPRING_PROFILES_ACTIVE=docker
      - JAVA_OPTS=-Xmx512m -XX:+UseContainerSupport
      # Only sensitive data that shouldn't be in properties files
      - SPRING_DATASOURCE_PASSWORD=nexuspay_password
    depends_on:
      postgres:
        condition: service_healthy
      kafka:
        condition: service_healthy
      redis:
        condition: service_healthy
      discovery-server:
        condition: service_healthy
    networks:
      - nexuspay-network
    restart: unless-stopped

  transaction-service:
    build:
      context: ./transaction-service
      dockerfile: Dockerfile
      args:
        BUILDKIT_INLINE_CACHE: 1
    container_name: nexuspay-transaction-service
    ports:
      - "8082:8082"
    environment:
      - SPRING_PROFILES_ACTIVE=docker
      - JAVA_OPTS=-Xmx512m -XX:+UseContainerSupport
      # Only sensitive data that shouldn't be in properties files
      - SPRING_DATASOURCE_PASSWORD=nexuspay_password
    depends_on:
      postgres:
        condition: service_healthy
      kafka:
        condition: service_healthy
      redis:
        condition: service_healthy
      discovery-server:
        condition: service_healthy
    networks:
      - nexuspay-network
    restart: unless-stopped

  # API Gateway
  api-gateway:
    build:
      context: ./api-gateway
      dockerfile: Dockerfile
      args:
        BUILDKIT_INLINE_CACHE: 1
    container_name: nexuspay-api-gateway
    ports:
      - "8080:8080"
    environment:
      - SPRING_PROFILES_ACTIVE=docker
      - JAVA_OPTS=-Xmx512m -XX:+UseContainerSupport
    depends_on:
      discovery-server:
        condition: service_healthy
      account-service:
        condition: service_started
      transaction-service:
        condition: service_started
    networks:
      - nexuspay-network
    restart: unless-stopped

networks:
  nexuspay-network:
    driver: bridge

volumes:
  postgres_data:
  kafka_data:
  redis_data: