Create Dockerfile

Dockerfile

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+FROM python:3.9-slim
+
+# Set environment variables
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+
+# Install system dependencies and create user in one layer
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    curl \
+    && rm -rf /var/lib/apt/lists/* \
+    && useradd -m -u 1000 user
+
+# Set work directory
+WORKDIR /home/user/app
+
+# Copy requirements and install packages
+COPY requirements.txt .
+RUN pip install --no-cache-dir --upgrade pip setuptools wheel && \
+    pip install --no-cache-dir -r requirements.txt
+
+# Copy application code and set ownership
+COPY . .
+RUN chown -R user:user /home/user/app
+
+# Switch to user and create data directory
+USER user
+RUN mkdir -p data
+
+# Expose port
+EXPOSE 7860
+
+# Use uvicorn directly
+CMD ["python", "-m", "uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]