feat: add Python-alpine Dockerfile for enhanced build process and testing with id-configurator

Signed-off-by: d9pouces <github@19pouces.net>

tests/dockerfiles/Python-alpine.Dockerfile

@@ -0,0 +1,24 @@
+FROM python:3.13-alpine AS target
+FROM interdiode/id-configurator:latest AS configuration
+COPY --from=target / /src/
+COPY --from=generated-config Python.yaml /config.yaml
+RUN id-configurator apply --config /config.yaml --src /src --dst /dst
+FROM target AS runtime
+ARG PYPI_REPO_PORT
+# Warm up uv and poetry themselves from the real, network-reachable PyPI
+# while the default index is still in place, so the actual tests below
+# never need anything but the fixture repository configured by
+# id-configurator. (easy_install/distutils, the fourth tool the `python`
+# module configures, is not exercised here: both were removed from Python
+# itself in 3.12, and setuptools no longer ships easy_install either, so
+# there is no way to actually invoke it on a current interpreter.)
+RUN pip install --no-cache-dir uv poetry
+COPY --from=configuration /dst/ /
+RUN pip install --no-cache-dir idconfiguratortestpkg \
+    && python3 -c "import idconfiguratortestpkg"
+RUN uv pip install --system idconfiguratortestpkg \
+    && python3 -c "import idconfiguratortestpkg"
+RUN mkdir -p /tmp/poetrytest && cd /tmp/poetrytest \
+    && poetry init -n --name poetrytest \
+    && poetry source add --priority explicit demo "https://host.docker.internal:${PYPI_REPO_PORT}/simple/" \
+    && poetry add idconfiguratortestpkg --source demo