P2: print→logging 전환, 포트폴리오 중복 제거, Docker healthcheck 추가

- backend/main.py: logging 모듈 도입, print() 제거
- stock-lab/main.py: print() → logger 전환, _calc_portfolio_totals 공용 함수 추출
- stock-lab/scraper.py: logging 모듈 도입, print() 제거
- docker-compose.yml: 전 서비스 healthcheck 블록 추가 (30s 간격, 3회 재시도)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/app/main.py

@@ -1,10 +1,14 @@
 import os
 import time
+import logging
 from typing import Optional, List, Dict, Any, Tuple
 from fastapi import FastAPI, HTTPException
 from pydantic import BaseModel
 from apscheduler.schedulers.background import BackgroundScheduler
 
+logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(name)s] %(levelname)s %(message)s")
+logger = logging.getLogger("lotto-backend")
+
 from .db import (
     init_db, get_draw, get_latest_draw, get_all_draw_numbers,
     save_recommendation_dedup, list_recommendations_ex, delete_recommendation,
@@ -52,7 +56,7 @@ _PERF_CACHE_TTL = 3600  # 1시간 (스케줄러 미실행 상황 대비 폴백)
 def _refresh_perf_cache() -> None:
     _PERF_CACHE["data"] = get_recommendation_performance()
     _PERF_CACHE["at"] = time.time()
-    print("[PerfCache] 성과 통계 캐시 갱신")
+    logger.info("성과 통계 캐시 갱신")
 
 
 @app.on_event("startup")
@@ -86,7 +90,7 @@ def on_startup():
         target = latest["drw_no"] + 1
         report = generate_weekly_report(draws, target)
         save_weekly_report(target, _json.dumps(report, ensure_ascii=False))
-        print(f"[WeeklyReport] {target}회차 리포트 저장 완료")
+        logger.info(f"{target}회차 리포트 저장 완료")
 
     scheduler.add_job(_save_weekly_report_job, "cron", day_of_week="sat", hour=9, minute=0)
 

docker-compose.yml

@@ -16,6 +16,11 @@ services:
       - LOTTO_LATEST_URL=${LOTTO_LATEST_URL:-https://smok95.github.io/lotto/results/latest.json}
     volumes:
       - ${RUNTIME_PATH}/data:/app/data
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
 
   stock-lab:
     build:
@@ -36,6 +41,11 @@ services:
       - CORS_ALLOW_ORIGINS=${CORS_ALLOW_ORIGINS:-http://localhost:3007,http://localhost:8080}
     volumes:
       - ${STOCK_DATA_PATH:-./data/stock}:/app/data
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
 
   music-lab:
     build:
@@ -51,6 +61,11 @@ services:
       - CORS_ALLOW_ORIGINS=${CORS_ALLOW_ORIGINS:-http://localhost:3007,http://localhost:8080}
     volumes:
       - ${MUSIC_DATA_PATH:-./data/music}:/app/data
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
 
   travel-proxy:
     build: ./travel-proxy
@@ -58,7 +73,7 @@ services:
     restart: unless-stopped
     user: "${PUID}:${PGID}"
     ports:
-      - "19000:8000"	# 내부 확인용
+      - "19000:8000"
     environment:
       - TZ=${TZ:-Asia/Seoul}
       - TRAVEL_ROOT=${TRAVEL_ROOT:-/data/travel}
@@ -69,6 +84,11 @@ services:
     volumes:
       - ${PHOTO_PATH}:/data/travel:ro
       - ${RUNTIME_PATH}/travel-thumbs:/data/thumbs:rw
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
 
   frontend:
     image: nginx:alpine
@@ -86,13 +106,18 @@ services:
       - ${MUSIC_DATA_PATH:-./data/music}:/data/music:ro
     extra_hosts:
       - "host.docker.internal:host-gateway"
+    healthcheck:
+      test: ["CMD", "wget", "-q", "--spider", "http://localhost:80/"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
 
   deployer:
     build: ./deployer
     container_name: webpage-deployer
     restart: unless-stopped
     ports:
-      - "127.0.0.1:19010:9000"   # localhost만 허용 (nginx /webhook 프록시 경유)
+      - "127.0.0.1:19010:9000"
     environment:
       - WEBHOOK_SECRET=${WEBHOOK_SECRET}
     volumes:

stock-lab/app/main.py

@@ -66,10 +66,22 @@ def is_market_open(d: date_type) -> bool:
     return d.weekday() < 5 and d.strftime("%Y-%m-%d") not in _HOLIDAYS
 
 
+def _calc_portfolio_totals(items, prices):
+    """포트폴리오 총 매입/평가금 계산 (snapshot과 API에서 공용)"""
+    total_buy = 0
+    total_eval = 0
+    for item in items:
+        buy_amount = item["avg_price"] * item["quantity"]
+        current_price = prices.get(item["ticker"], item["avg_price"])
+        total_buy += buy_amount
+        total_eval += current_price * item["quantity"]
+    return total_buy, total_eval
+
+
 def save_daily_snapshot():
     today = date_type.today()
     if not is_market_open(today):
-        print(f"[Snapshot] {today} 휴장일 — 스킵")
+        logger.info(f"Snapshot: {today} 휴장일 — 스킵")
         return
 
     today_str = today.strftime("%Y-%m-%d")
@@ -80,16 +92,13 @@ def save_daily_snapshot():
     if items:
         tickers = list({item["ticker"] for item in items})
         prices = get_current_prices(tickers)
-        total_eval = sum(
+        _, total_eval = _calc_portfolio_totals(items, prices)
-            prices.get(item["ticker"], item["avg_price"]) * item["quantity"]
-            for item in items
-        )
     else:
         total_eval = 0
 
     total_assets = total_eval + total_cash
     upsert_asset_snapshot(today_str, total_eval, total_cash, total_assets)
-    print(f"[Snapshot] {today_str} 저장 완료: eval={total_eval}, cash={total_cash}, total={total_assets}")
+    logger.info(f"Snapshot: {today_str} 저장 — eval={total_eval}, cash={total_cash}, total={total_assets}")
 
 @app.on_event("startup")
 def on_startup():
@@ -108,7 +117,7 @@ def on_startup():
     scheduler.start()
 
 def run_scraping_job():
-    print("[StockLab] Starting news scraping...")
+    logger.info("뉴스 스크래핑 시작")
     
     # 1. 국내
     articles_kr = fetch_market_news()
@@ -119,7 +128,7 @@ def run_scraping_job():
     # count_world = save_articles(articles_world)
     count_world = 0
     
-    print(f"[StockLab] Saved {count_kr} domestic, {count_world} overseas articles.")
+    logger.info(f"스크래핑 완료: 국내 {count_kr}건, 해외 {count_world}건")
 
 @app.get("/health")
 def health():

stock-lab/app/scraper.py

@@ -1,8 +1,11 @@
+import logging
 import requests
 from bs4 import BeautifulSoup
 from typing import List, Dict, Any
 import time
 
+logger = logging.getLogger("stock-lab.scraper")
+
 # 네이버 파이낸스 주요 뉴스
 NAVER_FINANCE_NEWS_URL = "https://finance.naver.com/news/mainnews.naver"
 # 해외증시 뉴스 (모바일 API 사용)
@@ -73,7 +76,7 @@ def fetch_market_news() -> List[Dict[str, str]]:
         return articles
 
     except Exception as e:
-        print(f"[StockLab] Scraping failed: {e}")
+        logger.error(f"국내 뉴스 스크래핑 실패: {e}")
         return []
 
 def fetch_overseas_news() -> List[Dict[str, str]]:
@@ -126,7 +129,7 @@ def fetch_overseas_news() -> List[Dict[str, str]]:
         return articles
 
     except Exception as e:
-        print(f"[StockLab] Overseas news failed: {e}")
+        logger.error(f"해외 뉴스 스크래핑 실패: {e}")
         return []
 
 def fetch_major_indices() -> Dict[str, Any]:
@@ -237,7 +240,7 @@ def fetch_major_indices() -> Dict[str, Any]:
                 })
 
         except Exception as e:
-             print(f"[StockLab] World indices failed: {e}")
+             logger.error(f"해외 지수 스크래핑 실패: {e}")
              
         # --- 환율 (USD/KRW) ---
         try:
@@ -269,10 +272,10 @@ def fetch_major_indices() -> Dict[str, Any]:
                     "type": "exchange"
                 })
         except Exception as e:
-            print(f"[StockLab] Exchange rate failed: {e}")
+            logger.error(f"환율 스크래핑 실패: {e}")
         
         return {"indices": indices, "crawled_at": time.strftime("%Y-%m-%d %H:%M:%S")}
         
     except Exception as e:
-        print(f"[StockLab] Indices scraping failed: {e}")
+        logger.error(f"지수 스크래핑 전체 실패: {e}")
         return {"indices": [], "error": str(e)}