first commit

Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+# 配置文件不打包，由 volumes 挂载
+VOLUME ["/app/config.yaml", "/app/last_notifications.json"]
+
+CMD ["python", "main.py"]