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Dockerfile

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+FROM python:3.11-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+# system deps for building some packages
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# copy requirements first for caching
+COPY requirements.txt /app/requirements.txt
+RUN pip install --no-cache-dir -r /app/requirements.txt
+
+# copy app
+COPY . /app
+
+EXPOSE 5000
+
+# default command runs the webapp; docker-compose will override for scraper service
+CMD ["python", "webapp.py"]