make poetry install match nautobot best practices

Author: jeffkala

Dockerfile

@@ -2,11 +2,25 @@ ARG PYTHON_VER=3.11
 
 FROM python:${PYTHON_VER}-slim
 
-RUN which poetry || curl -sSL https://install.python-poetry.org | python3 - && \
-    poetry config virtualenvs.create false
+# Install Poetry manually via its installer script;
+# if we instead used "pip install poetry" it would install its own dependencies globally which may conflict with ours.
+# https://python-poetry.org/docs/master/#installing-with-the-official-installer
+# This also makes it so that Poetry will *not* be included in the "final" image since it's not installed to /usr/local/
+ARG POETRY_HOME=/opt/poetry
+ARG POETRY_INSTALLER_PARALLEL=true
+ARG POETRY_VERSION=1.8.2
+ARG POETRY_VIRTUALENVS_CREATE=false
+ADD https://install.python-poetry.org /tmp/install-poetry.py
+RUN python /tmp/install-poetry.py
+
+# Add poetry install location to the $PATH
+ENV PATH="${POETRY_HOME}/bin:${PATH}"
+
+RUN poetry config virtualenvs.create ${POETRY_VIRTUALENVS_CREATE} && \
+    poetry config installer.parallel "${POETRY_INSTALLER_PARALLEL}"
 
 WORKDIR /local
 COPY . /local
 
 # Install the app
-RUN poetry install --extras all --with dev
+RUN poetry install --with dev