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backend/Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates \
+  && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt /app/requirements.txt
+RUN pip install --no-cache-dir -r /app/requirements.txt
+
+COPY app /app/app
+
+# Data dir for sqlite
+RUN mkdir -p /data
+ENV DATABASE_URL=sqlite+aiosqlite:////data/mt_traffic.db
+
+EXPOSE 8000
+CMD ["python", "-m", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]