Dockerfile

# Multi-stage Dockerfile for GitLab Issues Analyzer
FROM python:3.11-slim AS builder

# Set working directory
WORKDIR /app

# Install system dependencies for building
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    && rm -rf /var/lib/apt/lists/*

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

# Install Python dependencies (system-wide)
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Production stage
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Copy Python dependencies from builder (system-wide installation)
# These will be accessible to all users including non-root
COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=builder /usr/local/bin /usr/local/bin

# Copy application code
COPY . .

# Create non-root user for security
RUN useradd -m -u 1000 appuser && \
    chown -R appuser:appuser /app && \
    mkdir -p /app/data && \
    chown -R appuser:appuser /app/data

# Ensure Python packages are readable by all users
RUN chmod -R a+r /usr/local/lib/python3.11/site-packages

# Switch to non-root user
USER appuser

# Expose port for webhook mode
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python3 -c "import sys; sys.exit(0)" || exit 1

# Default command (can be overridden)
CMD ["python3", "main.py", "--mode", "poll"]