CI: build container from plain Python image

.containerignore

@@ -1,5 +1,4 @@
 .venv
-.git
 dist
 .pytest_cache
 .forgejo

Containerfile

@@ -1,22 +1,13 @@
-# Build: podman build -t code.philo.ydns.eu/philorg/treetrail-backend -f Containerfile
+FROM docker.io/library/python:latest
 
-FROM code.philo.ydns.eu/philorg/treetrail-backend-deps
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /usr/local/bin/
 
-ENV PYTHONPATH $UV_PROJECT_ENVIRONMENT/lib/python3.12/site-packages
-ARG APP_VERSION=0.0.0
+COPY . /app
 
-COPY . /src
+# Sync the project into a new environment, using the frozen lockfile
+WORKDIR /app
 
-#RUN --mount=type=cache,target=/root/.cache \
-#  cd /src && \
-#  uv sync --locked --no-dev --no-editable
-
-RUN uv pip install \
-  --python=$UV_PROJECT_ENVIRONMENT \
-  --no-deps \
-  /src
-
-RUN echo $APP_VERSION > /app/version.txt
+RUN uv pip install --system .
 
 CMD [ \
   "uvicorn", "treetrail.application:app", \