添加docker-compose.prod

backend/Dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1
-FROM python:3.12.2 AS dev
+FROM python:3.12.2 AS base
 
 WORKDIR /app
 
@@ -14,8 +14,20 @@ RUN apt-get update && \
 COPY . .
 
 RUN pip install -r requirements.txt -i https://mirrors.aliyun.com/pypi/simple
+# 入口命令由 docker-compose 控制
+# 收集静态文件
+RUN python manage.py collectstatic --noinput
 
-CMD ["sh", "-c", "sleep 10 && python manage.py runserver 0.0.0.0:8000"]
 
 # 默认命令，开发和生产通过 docker-compose 覆盖
-#CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]
+#CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]
+
+FROM base AS dev
+
+CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]
+
+# CMD ["sh", "-c", "sleep 5 && python manage.py runserver 0.0.0.0:8000"]
+
+
+FROM base AS prod
+