Dockerfile

FROM python:3.13-slim-bookworm AS builder

RUN apt-get update && \
    apt-get install -y gcc libpq-dev && \
    rm -rf /var/lib/apt/lists/*

RUN pip install --upgrade pip setuptools wheel

COPY requirements.txt /app/requirements.txt
RUN pip install --prefix=/install -r /app/requirements.txt

FROM python:3.13-slim-bookworm

ENV PYTHONUNBUFFERED=1

RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        wget gnupg ca-certificates && \
    mkdir -p /etc/apt/keyrings && \
    wget -qO /etc/apt/keyrings/postgres.asc https://www.postgresql.org/media/keys/ACCC4CF8.asc && \
    echo "deb [signed-by=/etc/apt/keyrings/postgres.asc] http://apt.postgresql.org/pub/repos/apt bookworm-pgdg main" \
        > /etc/apt/sources.list.d/pgdg.list && \
    apt-get update && \
    apt-get install -y --no-install-recommends postgresql-client-18 gzip && \
    rm -rf /var/lib/apt/lists/*

COPY --from=builder /install /usr/local

COPY main.py /app/main.py

WORKDIR /app

CMD ["python", "main.py"]