Dockerfile

ARG PYTHON_VERSION=3.13.1-slim-bullseye

# define an alias for the specific python version used in this file.
FROM python:${PYTHON_VERSION} as python
LABEL authors="piwero"

ARG APP_HOME=/app

ENV PYTHONUNBUFFERED=1 \
    # prevents python creating .pyc files
    PYTHONDONTWRITEBYTECODE=1 \
    \
    # pip
    PIP_NO_CACHE_DIR=off \
    PIP_DISABLE_PIP_VERSION_CHECK=on \
    PIP_DEFAULT_TIMEOUT=100 \
    \
    # poetry
    # https://python-poetry.org/docs/configuration/#using-environment-variables
    POETRY_VERSION=1.5.1 \
    POETRY_HOME="/opt/poetry" \
    POETRY_NO_INTERACTION=1

ENV PATH="$POETRY_HOME/bin:$PATH"

# Install apt packages
RUN apt-get update && apt-get install --no-install-recommends -y \
  # dependencies for building Python packages
  build-essential \
  curl \
  && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false \
  && rm -rf /var/lib/apt/lists/*

RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/${POETRY_VERSION}/install-poetry.py | python - --version ${POETRY_VERSION}

WORKDIR ${APP_HOME}

#copy poetry files
COPY poetry.lock pyproject.toml ./

RUN poetry config virtualenvs.create false \
  && poetry install --no-interaction --no-ansi

# copy application code to WORKDIR
COPY . .