docker-compose.yml

version: '3.8'

services:
  # Zookeeper for Kafka coordination
  zookeeper:
    image: confluentinc/cp-zookeeper:7.5.0
    container_name: abm-zookeeper
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    ports:
      - "2181:2181"
    volumes:
      - zookeeper-data:/var/lib/zookeeper/data
      - zookeeper-logs:/var/lib/zookeeper/log

  # Kafka message broker
  kafka:
    image: confluentinc/cp-kafka:7.5.0
    container_name: abm-kafka
    depends_on:
      - zookeeper
    ports:
      - "9092:9092"
      - "9093:9093"
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092,PLAINTEXT_INTERNAL://kafka:9093
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_INTERNAL:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT_INTERNAL
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"
    volumes:
      - kafka-data:/var/lib/kafka/data

  # TimescaleDB for time-series storage
  timescaledb:
    image: timescale/timescaledb:latest-pg15
    container_name: abm-timescaledb
    ports:
      - "5432:5432"
    environment:
      POSTGRES_DB: market_sim
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    volumes:
      - timescale-data:/var/lib/postgresql/data
      - ./monitoring/init.sql:/docker-entrypoint-initdb.d/init.sql

  # Kafka UI for monitoring (optional but helpful)
  kafka-ui:
    image: provectuslabs/kafka-ui:latest
    container_name: abm-kafka-ui
    depends_on:
      - kafka
    ports:
      - "8080:8080"
    environment:
      KAFKA_CLUSTERS_0_NAME: local
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:9093

volumes:
  zookeeper-data:
  zookeeper-logs:
  kafka-data:
  timescale-data: