Dockerfile

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

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

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

# Upgrade pip and install poetry
RUN pip install --upgrade pip poetry

# Install Python dependencies
COPY pyproject.toml poetry.lock* ./
RUN poetry config virtualenvs.create false && \
    poetry install --no-root --no-interaction --no-ansi --only main

# Production stage
FROM python:3.11-slim as production

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

# Install runtime dependencies only
RUN apt-get update && apt-get install -y \
    libpq5 \
    gettext \
    && rm -rf /var/lib/apt/lists/*

# Copy Python packages from base stage
COPY --from=base /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=base /usr/local/bin /usr/local/bin

# Create non-root user
RUN groupadd -r django && useradd -r -g django django

# Set work directory
WORKDIR /app

# Copy project files
COPY . .

# Set PYTHONPATH so Python can find dkp module
ENV PYTHONPATH=/app/dkp:$PYTHONPATH

# Create necessary directories
RUN mkdir -p /app/staticfiles /app/media /app/logs && \
    chown -R django:django /app

# Collect static files
RUN python dkp/manage.py collectstatic --noinput

# Switch to non-root user
USER django

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python dkp/manage.py check --deploy || exit 1

# Expose port
EXPOSE 8000

# Run Daphne ASGI server
CMD ["daphne", "-b", "0.0.0.0", "-p", "8000", "dkp.asgi:application", "--verbosity", "2"]

# Development stage
FROM python:3.11-slim as development

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

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

# Upgrade pip and install poetry
RUN pip install --upgrade pip poetry

# Set work directory
WORKDIR /app

# Install dependencies
COPY pyproject.toml poetry.lock* ./
RUN poetry config virtualenvs.create false && \
    poetry install --no-root --no-interaction --no-ansi

# Copy project files
COPY . .

# Create necessary directories
RUN mkdir -p /app/staticfiles /app/media /app/logs

# Keep root user for development (easier debugging)

# Expose port
EXPOSE 8000

# Run Daphne with auto-reload in development
CMD ["daphne", "-b", "0.0.0.0", "-p", "8000", "dkp.asgi:application", "--verbosity", "2"]