Dockerfile

FROM python:3.11-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV FLASK_ENV=production
ENV FLASK_SECRET_KEY=change-this-in-production

# Create app directory
WORKDIR /app

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

# Copy requirements first for better caching
COPY pyproject.toml requirements-dev.txt ./
RUN pip install --no-cache-dir -e .

# Copy application code
COPY oidcheck/ ./oidcheck/
COPY README.md ./

# Create non-root user
RUN useradd --create-home --shell /bin/bash app \
    && chown -R app:app /app
USER app

# Expose port
EXPOSE 5000

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:5000/health || exit 1

# Run the application
CMD ["flask", "--app", "oidcheck.server", "run", "--host", "0.0.0.0"]