Dockerfile

FROM python:3.8

# Set a writable cache directory for Hugging Face models
ENV HF_HOME="/tmp/huggingface_cache"
ENV MPLCONFIGDIR="/tmp/matplotlib_cache"
ENV TRANSFORMERS_CACHE="/tmp/huggingface"
ENV NUMBA_CACHE_DIR="/tmp/numba_cache"

# Create and set correct permissions for cache directories
RUN mkdir -p $HF_HOME $MPLCONFIGDIR $TRANSFORMERS_CACHE $NUMBA_CACHE_DIR \
    && chmod -R 777 $HF_HOME $MPLCONFIGDIR $TRANSFORMERS_CACHE $NUMBA_CACHE_DIR

# Install system dependencies
RUN apt-get update && apt-get install -y \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Set up a non-root user to avoid permission issues
RUN useradd -m appuser
USER appuser

# Set the PATH to include local bin directory
ENV PATH="/home/appuser/.local/bin:$PATH"

# Install Python dependencies
COPY --chown=appuser:appuser requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Manually install uvicorn in case it failed above
RUN pip install uvicorn

# Verify that uvicorn was installed
RUN pip show uvicorn

# Copy the API code
COPY --chown=appuser:appuser . .

# Expose the port
EXPOSE 5000

# Run the application
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "5000"]