v3, heavy refactor needed

src/Containerfile

@@ -0,0 +1,15 @@
+ARG PYTHON_IMAGE
+FROM ${PYTHON_IMAGE}
+
+RUN pip install --no-cache-dir docker
+
+ARG DOCKER_VERSION
+RUN apt-get update && apt-get install -y --no-install-recommends curl ca-certificates \
+    && curl -fsSL "https://download.docker.com/linux/static/stable/x86_64/docker-${DOCKER_VERSION}.tgz" \
+    | tar xz -C /usr/local/bin --strip-components=1 docker/docker \
+    && apt-get purge -y curl ca-certificates && apt-get autoremove -y \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY src/dnc /opt/dnc/lib/dnc
+ENV PYTHONPATH=/opt/dnc/lib:$PYTHONPATH
+ENTRYPOINT ["python3", "-m", "dnc"]