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FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    build-essential \
    git \
    && rm -rf /var/lib/apt/lists/*

# Create and set cache directory
RUN mkdir -p /tmp/hf_home && \
    chmod -R 777 /tmp/hf_home

# Set environment variables
ENV HF_HOME=/tmp/hf_home
ENV TRANSFORMERS_CACHE=/tmp/hf_home
ENV HUGGINGFACE_HUB_CACHE=/tmp/hf_home

# Copy requirements first
COPY requirements.txt .

# Install Python dependencies
RUN pip install --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create non-root user
RUN useradd -m myuser && \
    chown -R myuser /app && \
    chown -R myuser /tmp/hf_home

USER myuser

# Expose port
EXPOSE 7860

# Run the app
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]