Embrace poetry

pip-tools doesn't work well on renovate, and also makes some things annoying. Poetry has been a pain in the past, but let's see if intense usage will win me over.

Dockerfile

@@ -25,6 +25,8 @@ RUN apt-get update --yes --quiet && apt-get install --yes --quiet --no-install-r
 
 RUN curl -fsSL https://github.com/aptible/supercronic/releases/download/v0.2.1/supercronic-linux-amd64 -o /usr/local/bin/supercronic && chmod +x /usr/local/bin/supercronic
 
+RUN pip install --no-cache poetry==1.2.0
+
 ENV PATH=$VIRTUAL_ENV/bin:$PATH \
     PYTHONUNBUFFERED=1
 
@@ -33,8 +35,8 @@ EXPOSE 8000
 USER website
 
 RUN python -m venv $VIRTUAL_ENV
-COPY --chown=website requirements/base.txt ./requirements/base.txt
-RUN pip install --no-cache --upgrade pip && pip install --no-cache -r ./requirements/base.txt
+COPY --chown=website pyproject.toml poetry.lock ./
+RUN poetry install --without=dev --no-cache
 
 COPY --chown=website --from=frontend ./static/build ./static/build
 
@@ -58,7 +60,6 @@ RUN curl -sSf https://just.systems/install.sh | bash -s -- --to /usr/bin
 # Restore user
 USER website
 
-COPY --chown=website requirements/dev.txt ./requirements/dev.txt
-RUN pip install -r requirements/dev.txt
+RUN poetry install --no-cache
 
 CMD sleep infinity