FROM git.pyrocufflink.net/containerimages/dch-base AS build

RUN --mount=type=cache,target=/var/cache \
	microdnf install -y \
		--setopt=install_weak_deps=0 \
		git-core \
		python3-pip \
		python3-wheel \
	&& :

WORKDIR /build

ARG RESTIC_EXPORTER_VERSION=1.5.0

RUN git clone \
	https://github.com/ngosang/restic-exporter.git \
	--depth 1 \
	-b ${RESTIC_EXPORTER_VERSION} \
	&& :

WORKDIR /build/restic-exporter

RUN python3 -m pip wheel -w ../wheels -r requirements.txt


FROM git.pyrocufflink.net/containerimages/dch-base

RUN --mount=type=cache,target=/var/cache \
	microdnf install -y \
		--setopt=install_weak_deps=0 \
		python3 \
		restic \
		tini \
	&& :

RUN --mount=type=bind,from=build,src=/build,target=/build \
	python3 -m venv /app \
	&& pythonpath=$(/app/bin/python -Esc 'from sysconfig import *;print(get_path("purelib"))') \
	&& /app/bin/python -m pip install \
		--find-links /build/wheels \
		--no-index \
		--requirement /build/restic-exporter/requirements.txt \
	&& cp /build/restic-exporter/restic-exporter.py \
		"${pythonpath}"/restic_exporter.py \
	&& :

USER 8001:8001

ENTRYPOINT ["tini", "/app/bin/python", "--", "-m", "restic_exporter"]