Dockerfile.dev

# Multi-stage build for optimized image size
FROM python:3.12-slim AS builder

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

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Create virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Copy requirements and install Python dependencies
COPY requirements.txt /tmp/requirements.txt
RUN pip install --upgrade pip setuptools wheel && \
    pip install -r /tmp/requirements.txt


# Final stage
FROM python:3.12-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PATH="/opt/venv/bin:$PATH"

# Install runtime dependencies only
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    postgresql-client \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv

# Create app user
RUN useradd -m -u 1000 appuser && \
    mkdir -p /app/staticfiles /app/media && \
    chown -R appuser:appuser /app

# Set work directory
WORKDIR /app

# Copy project files
COPY --chown=appuser:appuser . .

# Switch to non-root user
USER appuser

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:8000/health/system/ || exit 1

# Default command
CMD ["uvicorn", "paycore.asgi:application", "--host", "0.0.0.0", "--port", "8000", "--workers", "4"]