FROM python:3.7-alpine RUN apk add git RUN apk add --no-cache --virtual .build-deps \ gcc \ && pip install snakeoil \ && apk del .build-deps RUN git+https://anongit.gentoo.org/git/proj/catalyst.git # Override Stage3 preclean to add perl-cleaner invocation COPY stage3-preclean-chroot.sh \ /usr/share/catalyst/targets/stage3/stage3-preclean-chroot.sh # Volume for catalyst generated files VOLUME /var/lib/catalyst # Volume for downloaded distfiles VOLUME /var/cache/portage/distfiles # Volume for generated packages VOLUME /var/cache/portage/packages # The entrypoint… COPY entrypoint.sh entrypoint.sh # ... to be called CMD /entrypoint.sh