Dockerfile

# Use Python 3.11 slim image as base
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Install system dependencies including Helm
RUN apt-get update && apt-get install -y \
    curl \
    gnupg \
    lsb-release \
    && rm -rf /var/lib/apt/lists/*

# Install Helm
RUN curl https://baltocdn.com/helm/signing.asc | gpg --dearmor | tee /usr/share/keyrings/helm.gpg > /dev/null \
    && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/helm.gpg] https://baltocdn.com/helm/stable/debian/ all main" | tee /etc/apt/sources.list.d/helm-stable-debian.list \
    && apt-get update \
    && apt-get install -y helm \
    && rm -rf /var/lib/apt/lists/*

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

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

# Copy application code
COPY app/ ./app/

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

# Switch to non-root user
USER app

# Expose port
EXPOSE 5000

# Set environment variables
ENV FLASK_APP=app.run
ENV PYTHONPATH=/app
ENV HOST=0.0.0.0
ENV PORT=5000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:5000/ || exit 1

# Run the application
CMD ["python", "app/run.py"]