FROM alpine:latest
RUN apk update && apk add cups shadow && \
	sed -i 's/Listen localhost:631/Listen 0.0.0.0:631/' /etc/cups/cupsd.conf && \
	sed -i 's/Browsing Off/Browsing On/' /etc/cups/cupsd.conf && \
	sed -i 's/<Location \/>/<Location \/>\n  Allow All/' /etc/cups/cupsd.conf && \
	sed -i 's/<Location \/admin>/<Location \/admin>\n  Allow All\n  Require user @SYSTEM/' /etc/cups/cupsd.conf && \
	sed -i 's/<Location \/admin\/conf>/<Location \/admin\/conf>\n  Allow All/' /etc/cups/cupsd.conf && \
	echo "ServerAlias *" >> /etc/cups/cupsd.conf && \
	echo "DefaultEncryption Never" >> /etc/cups/cupsd.conf && \
	useradd -r -g lpadmin -M lpadmin && \
	echo lpadmin:lpadmin | chpasswd

EXPOSE 631

ENTRYPOINT /usr/sbin/cupsd -f