Dockerfile

FROM python:3.9-slim

# Set environment variables
ENV FLASK_APP=app.py
ENV FLASK_ENV=production
ENV PATH="/home/appuser/.local/bin:$PATH"

# Install system dependencies for OpenCV and other requirements
RUN apt-get update && apt-get install -y \
    libgl1-mesa-glx \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    tesseract-ocr \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user
RUN useradd -m appuser && mkdir -p /app /app/instance && chown -R appuser:appuser /app

# Set the working directory
WORKDIR /app

# Copy requirements and install dependencies
COPY --chown=appuser:appuser requirements.txt .
RUN pip install --no-cache-dir "numpy<2.0.0" && \
    pip install --no-cache-dir -r requirements.txt

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

# Switch to non-root user
USER appuser

# Expose the port
EXPOSE 5000

# Run the application using gunicorn with config file
CMD ["gunicorn", "--config=./gunicorn.conf.py", "--workers=2", "app:create_app()"]