dockerfile

FROM --platform=linux/amd64 python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies including tesseract for OCR and common build tools
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
    tesseract-ocr \
    tesseract-ocr-eng \
    tesseract-ocr-jpn \
    tesseract-ocr-chi-sim \
    tesseract-ocr-ara \
    tesseract-ocr-hin \
    tesseract-ocr-kor \
    libgl1 \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean --yes

# Copy requirements first for better caching
COPY requirements.txt .

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

# Copy source code
COPY . .

# Create input and output directories
RUN mkdir -p /app/input /app/output

# Set environment variables
ENV PYTHONPATH=/app
ENV TESSDATA_PREFIX=/usr/share/tesseract-ocr/4.00/tessdata

# Use non-root user for security
RUN adduser --disabled-password --gecos "" appuser && chown -R appuser:appuser /app
USER appuser

# Set the entrypoint
ENTRYPOINT ["python", "main.py"]