FROM alpine:3.12

# install pillow form instead of py3-pillow to use the source (no -dev package available)

ENV PILLOW=7.2.0
ENV OVERVIEWER=0.16.0

RUN apk update && apk add git build-base python3-dev zlib-dev jpeg-dev py3-numpy-dev tzdata alpine-conf && \
	apk add python3 py3-pip py3-numpy zlib jpeg && pip3 install pillow==${PILLOW} && \
	wget https://github.com/python-pillow/Pillow/archive/${PILLOW}.tar.gz -O /pillow.tgz && tar -xzf /pillow.tgz && \
	wget https://github.com/overviewer/Minecraft-Overviewer/archive/v${OVERVIEWER}.tar.gz -O ov.tgz && tar -xzf ov.tgz && \
	cd /Minecraft-Overviewer-${OVERVIEWER}/ && \
	PIL_INCLUDE_DIR=/Pillow-${PILLOW}/src/libImaging/ python3 setup.py build && \
	python3 setup.py install && \
	rm -rf /Pillow-${PILLOW} /Minecraft-Overviewer-${OVERVIEWER}/ && \
	setup-timezone -z Europe/Berlin && \
	apk del git build-base python3-dev zlib-dev jpeg-dev py3-numpy-dev tzdata alpine-conf && \
	echo '0 * * * * /usr/bin/overviewer.py --config /overviewer.conf' > /var/spool/cron/crontabs/overviewer && \
	adduser -D overviewer

COPY cron.sh /

CMD ["sh", "/cron.sh"]