dnscms: migrate to uv, remove wagtail-wordpress-import dependency

dnscms/Dockerfile

@@ -1,11 +1,14 @@
 FROM python:3.12-slim-bullseye
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
 RUN useradd wagtail
 
 EXPOSE 8000
 
 ENV PYTHONUNBUFFERED=1 \
-    PORT=8000
+    PORT=8000 \
+    UV_COMPILE_BYTECODE=1 \
+    UV_LINK_MODE=copy
 
 RUN apt-get update --yes --quiet && apt-get install --yes --quiet --no-install-recommends \
     build-essential \
@@ -13,29 +16,25 @@ RUN apt-get update --yes --quiet && apt-get install --yes --quiet --no-install-r
     libjpeg62-turbo-dev \
     zlib1g-dev \
     libwebp-dev \
+    git \
  && rm -rf /var/lib/apt/lists/*
 
-ENV POETRY_VERSION=""
-ENV POETRY_HOME="/opt/poetry"
-ENV PIP_NO_CACHE_DIR=1
-ENV POETRY_VIRTUALENVS_CREATE=false
-ENV POETRY_NO_INTERACTION=1
-ENV PATH="$POETRY_HOME/bin:$PATH"
+WORKDIR /app
 
-RUN apt-get update \
-    && apt-get install --no-install-recommends --assume-yes curl
-
-RUN curl -sSL https://install.python-poetry.org | python3 -
+RUN --mount=type=cache,target=/root/.cache/uv \
+    --mount=type=bind,source=uv.lock,target=uv.lock \
+    --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
+    uv version && uv sync --locked --no-install-project
 
 WORKDIR /app
-COPY pyproject.toml poetry.lock README.md /app/
-RUN pip install gunicorn
-RUN poetry install --without=dev
-COPY . /app
+ADD . /app
+RUN --mount=type=cache,target=/root/.cache/uv \
+    uv sync --locked --no-dev
+
 RUN chown wagtail:wagtail /app
-COPY --chown=wagtail:wagtail . .
 USER wagtail
 
+ENV PATH="/app/.venv/bin:$PATH"
 RUN python manage.py collectstatic --noinput --clear
 
-CMD set -xe; python manage.py migrate --noinput && gunicorn dnscms.wsgi:application
+CMD ["sh", "-c", "set -xe; python manage.py migrate --noinput && gunicorn dnscms.wsgi:application"]