FROM alpine:3.17

ENV DOCKER_HOST=unix:///var/run/docker.sock

ARG DOCKER_VERSION

RUN apk --no-cache add --update \
	docker=$DOCKER_VERSION \
	openrc \
	bash

RUN rc-update add docker boot

COPY docker-setup /bin/
RUN chmod +x /bin/docker-setup

CMD [ "/bin/docker-setup" ]
ENTRYPOINT [ "/bin/bash", "-l", "-c" ]