Dockerfile

FROM ubuntu:24.04

ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV DEBIAN_FRONTEND=noninteractive
ENV PATH=/opt/venv/bin:$PATH

# System deps: Python + venv, and the PostgreSQL 17 client (pg_dump/pg_restore/psql)
# from the PGDG apt repo to match the postgres:17.9 server.
RUN apt-get update && apt-get install -y --no-install-recommends \
        python3 python3-venv \
        curl ca-certificates gnupg \
    && install -d /usr/share/postgresql-common/pgdg \
    && curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
         -o /usr/share/postgresql-common/pgdg/apt.postgresql.org.asc \
    && echo "deb [signed-by=/usr/share/postgresql-common/pgdg/apt.postgresql.org.asc] \
https://apt.postgresql.org/pub/repos/apt noble-pgdg main" \
         > /etc/apt/sources.list.d/pgdg.list \
    && apt-get update \
    && apt-get install -y --no-install-recommends postgresql-client-17 \
    && rm -rf /var/lib/apt/lists/*

# Isolated venv (Ubuntu 24.04 is externally-managed / PEP 668).
RUN python3 -m venv /opt/venv \
    && pip install --no-cache-dir --upgrade pip

WORKDIR /app

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 8000

CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]