docker-compose.ymlに.envファイルを追加し、環境変数の設定を整理

docker-compose.yml

@@ -1,5 +1,7 @@
 services:
   app:
+    env_file:
+      - .env
     build:
       context: .
       dockerfile: Dockerfile.production
@@ -9,11 +11,7 @@ services:
       - db
     environment:
       NODE_ENV: production
-      DB_NAME: ${DB_NAME}
-      DB_USER: ${DB_USER}
-      DB_PASS: ${DB_PASS}
       DB_HOST: db
-      TZ: Asia/Tokyo
     volumes:
       - ./public/thumbnails:/app/public/thumbnails
       - ./logs/app:/app/logs