docker-compose.yml

version: "3.8"

services:

  # Services
  zookeeper:
    image: confluentinc/cp-zookeeper:7.4.0
    container_name: zookeeper
    restart: unless-stopped
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    ports:
      - "2181:2181"
    healthcheck:
      test: ["CMD-SHELL", "echo srvr | nc -w 2 localhost 2181 | grep Mode || exit 1"]
      interval: 10s
      timeout: 5s
      retries: 10
      start_period: 15s

  kafka:
    image: confluentinc/cp-kafka:7.4.0
    container_name: kafka
    restart: unless-stopped
    depends_on:
      zookeeper:
        condition: service_healthy
    ports:
      - "9092:9092"
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181

      KAFKA_LISTENERS: INTERNAL://0.0.0.0:29092,EXTERNAL://0.0.0.0:9092
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka:29092,EXTERNAL://localhost:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL

      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"
    healthcheck:
      test: ["CMD-SHELL", "kafka-topics --bootstrap-server localhost:9092 --list >/dev/null 2>&1 || exit 1"]
      interval: 15s
      timeout: 10s
      retries: 10
      start_period: 20s

  order-db:
    image: postgres:16
    container_name: order-db
    restart: unless-stopped
    environment:
      POSTGRES_DB: order_db
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "54320:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres -d order_db"]
      interval: 10s
      timeout: 5s
      retries: 10

  inventory-db:
    image: postgres:16
    container_name: inventory-db
    restart: unless-stopped
    environment:
      POSTGRES_DB: inventory_db
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "54321:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres -d inventory_db"]
      interval: 10s
      timeout: 5s
      retries: 10

  payment-db:
    image: postgres:16
    container_name: payment-db
    restart: unless-stopped
    environment:
      POSTGRES_DB: payment_db
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "54322:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres -d payment_db"]
      interval: 10s
      timeout: 5s
      retries: 10

  # Apps
  orders-api:
    build:
      context: ./orders-service
    platform: linux/amd64
    container_name: orders-api
    restart: unless-stopped
    environment:
      RAILS_ENV: development
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_HOST: order-db
      POSTGRES_PORT: 5432
      POSTGRES_DB: order_db
      KAFKA_BROKERS: kafka:29092
    ports:
      - "3000:3000"
    depends_on:
      order-db:
        condition: service_healthy
      kafka:
        condition: service_healthy
    command: >
      sh -c "rm -f tmp/pids/server.pid &&
             bundle exec rails db:create db:migrate &&
             bundle exec rails server -b 0.0.0.0"

  orders-worker:
    build:
      context: ./orders-service
    platform: linux/amd64
    container_name: orders-worker
    restart: unless-stopped
    environment:
      RAILS_ENV: development
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_HOST: order-db
      POSTGRES_PORT: 5432
      POSTGRES_DB: order_db
      KAFKA_BROKERS: kafka:29092
    depends_on:
      orders-api:
        condition: service_started
    command: bundle exec karafka server

  inventory-worker:
    build:
      context: ./inventory-service
    platform: linux/amd64
    container_name: inventory-worker
    restart: unless-stopped
    environment:
      RAILS_ENV: development
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_HOST: inventory-db
      POSTGRES_PORT: 5432
      POSTGRES_DB: inventory_db
      KAFKA_BROKERS: kafka:29092
    depends_on:
      inventory-db:
        condition: service_healthy
      kafka:
        condition: service_healthy
    command: >
      sh -c "bundle exec rails db:create db:migrate db:seed &&
             bundle exec karafka server"

  payments-worker:
    build:
      context: ./payments-service
    platform: linux/amd64
    container_name: payments-worker
    restart: unless-stopped
    environment:
      RAILS_ENV: development
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_HOST: payment-db
      POSTGRES_PORT: 5432
      POSTGRES_DB: payments_db
      KAFKA_BROKERS: kafka:29092
    depends_on:
      payment-db:
        condition: service_healthy
      kafka:
        condition: service_healthy
    command: >
      sh -c "bundle exec rails db:create db:migrate &&
             bundle exec karafka server"