services:
  redis:
    image: redis:7.0
    container_name: redis
    restart: always
    ports:
      - "6379:6379"
  
  centrifugo:
    image: centrifugo/centrifugo:v5
    container_name: centrifugo
    restart: always
    ports:
      - "8000:8000"  # HTTP API
      - "8001:8001"  # WebSocket
    volumes:
      - ./centrifugo.json:/centrifugo/config.json:ro
    command: centrifugo --config=/centrifugo/config.json
    healthcheck:
      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:8000/health"]
      interval: 10s
      timeout: 5s
      retries: 3
    depends_on:
      - redis
  
  cassandra:
    image: cassandra:5.0.4
    restart: always
    ports:
      - "9042:9042"
    environment:
      TZ: ${TIMEZONE:-UTC}
      MAX_HEAP_SIZE: 4G
      HEAP_NEWSIZE: 2G
    healthcheck:
      test: ["CMD", "cqlsh", "-k", "sccflex"]
      interval: 10s
      timeout: 10s
      retries: 12
    mem_limit: 8g        # <--- 單機 docker-compose up 時建議明確加這行
    memswap_limit: 8g    # <--- 關掉 swap