# Taiga backend Dockerfile
# Builds the Taiga Django backend from source using Python 3.12

FROM python:3.12.13-bookworm

# Environment optimizations
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1

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

# Working directory inside the image
WORKDIR /taiga-back

# Build tooling
RUN pip install --no-cache-dir -U pip setuptools wheel

# Copy the project source
COPY . .

# Install dependencies if a requirements.txt is present
RUN if [ -f requirements.txt ]; then pip install --no-cache-dir -r requirements.txt; fi

# Install the package in editable mode if packaging is available
RUN pip install --no-cache-dir -e . || true

# Install Gunicorn for production serving
RUN pip install --no-cache-dir gunicorn

# Expose the default Taiga backend port
EXPOSE 8000

# Start the Django application using Gunicorn for production-like behavior
CMD ["gunicorn", "taiga.wsgi:application", "--bind", "0.0.0.0:8000", "--workers", "3"]