Dockerfile

FROM python:3.11-slim as python-base

# https://python-poetry.org/docs#ci-recommendations
ENV POETRY_VERSION=1.6.1
ENV POETRY_HOME=/opt/poetry
ENV POETRY_VENV=/opt/poetry-venv

# Tell Poetry where to place its cache and virtual environment
ENV POETRY_CACHE_DIR=/opt/.cache

# Create stage for Poetry installation
FROM python-base as poetry-base

# Creating a virtual environment just for poetry and install it with pip
RUN python3 -m venv $POETRY_VENV \
    && $POETRY_VENV/bin/pip install -U pip setuptools \
    && $POETRY_VENV/bin/pip install poetry==${POETRY_VERSION}

# Add Poetry to PATH
ENV PATH="${PATH}:${POETRY_VENV}/bin"

# Create a new stage from the base python image
FROM python-base as rulesbot-app

# Add psycopg2
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
    libpq-dev

# Copy Poetry to app image
COPY --from=poetry-base ${POETRY_VENV} ${POETRY_VENV}

# Add Poetry to PATH
ENV PATH="${PATH}:${POETRY_VENV}/bin"

# Set working directory
WORKDIR /app

# Copy Application
COPY . /app

# [OPTIONAL] Validate the project is properly configured
RUN poetry check

# Install Dependencies
RUN poetry install --no-interaction --no-cache --without dev

# Entrypoint prepares the database.
ENTRYPOINT ["/app/bin/docker-entrypoint"]

# Run Application
EXPOSE 5000
HEALTHCHECK --interval=10s --timeout=5s --start-period=30s --retries=5 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:5000/up/', timeout=3)" || exit 1
CMD [ "poetry", "run", "honcho", "start", "web" ]