Dockerfile

# Multi-stage build for production optimization
FROM python:3.11-slim as builder

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install dependencies
COPY requirements.txt .
RUN pip install --user --no-cache-dir -r requirements.txt

# Production stage
FROM python:3.11-slim

WORKDIR /app

# Install curl for health checks
RUN apt-get update && apt-get install -y \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user for security first
RUN useradd --create-home --shell /bin/bash appuser

# Copy installed packages from builder stage to appuser home
COPY --from=builder /root/.local /home/appuser/.local

# Copy application code
COPY ./app ./app

# Set up directories and permissions
RUN mkdir -p /app/data /app/logs && \
    chown -R appuser:appuser /app /home/appuser/.local

USER appuser

# Make sure scripts in .local are usable
ENV PATH=/home/appuser/.local/bin:$PATH

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/api/v1/health || exit 1

# Expose port
EXPOSE 8000

# Run the application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]