Dockerfile

# Use official lightweight Python image
FROM python:3.10-slim

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PIP_NO_CACHE_DIR=1

# Set working directory
WORKDIR /app

# Install system dependencies for OpenCV/YOLO and video decoding
RUN apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

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

# Install Python packages
RUN pip install --no-cache-dir -r requirements.txt

# Copy all application files
COPY . .

# Expose port (Cloud Run defaults to 8080)
EXPOSE 8080

# Run streamlit
CMD ["sh", "-c", "streamlit run app.py --server.port=${PORT:-8080} --server.address=0.0.0.0 --server.enableCORS=false --server.enableXsrfProtection=false"]