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# syntax=docker/dockerfile:1
FROM ubuntu:latest AS builder
WORKDIR /root/cups
RUN apt-get update -y && apt-get upgrade --fix-missing -y \
&& apt-get install -y --no-install-recommends \
autoconf \
build-essential \
libavahi-client-dev \
libkrb5-dev \
libnss-mdns \
libpam-dev \
libssl-dev \
libsystemd-dev \
libusb-1.0-0-dev \
zlib1g-dev \
&& rm -rf /var/lib/apt/lists/*
COPY . /root/cups
# Install into a build root directory for clean stage separation
RUN ./configure \
--prefix=/usr \
--libdir=/usr/lib \
--sysconfdir=/etc \
--localstatedir=/var \
&& make clean \
&& make \
&& make install DESTDIR=/buildroot
FROM ubuntu:latest AS runtime
RUN apt-get update -y \
&& apt-get install -y --no-install-recommends \
avahi-daemon \
libavahi-client3 \
libkrb5-3 \
libnss-mdns \
libpam0g \
libssl3t64 \
libsystemd0 \
libusb-1.0-0 \
openssl \
sudo \
zlib1g \
&& rm -rf /var/lib/apt/lists/*
# copy the build root into the runtime image
COPY --from=builder /buildroot/usr /usr
COPY --from=builder /buildroot/etc/cups /etc/cups
# Update the dynamic linker cache so libcups.so.2 is discoverable
RUN ldconfig
RUN useradd -m --create-home \
--password "$(echo 'admin' | openssl passwd -1 -stdin)" \
-f 0 admin \
&& groupadd -f lpadmin \
&& usermod -aG lpadmin admin \
&& echo 'admin ALL=(ALL:ALL) ALL' >> /etc/sudoers
RUN /usr/sbin/cupsd \
&& sleep 3 \
&& cupsctl --remote-admin --remote-any --share-printers \
&& killall cupsd || true
RUN sed -i \
-e 's/SystemGroup sys root/SystemGroup lpadmin/' \
/etc/cups/cups-files.conf \
&& sed -i \
-e 's/Port 631/Port 631\nServerAlias */' \
-e 's/DefaultAuthType Basic/DefaultAuthType Basic\nDefaultEncryption IfRequested/' \
/etc/cups/cupsd.conf \
&& echo "Browsing No" >> /etc/cups/cupsd.conf \
&& echo "BrowseLocalProtocols none" >> /etc/cups/cupsd.conf
RUN cp -rp /etc/cups /etc/cups-bak
VOLUME ["/etc/cups"]
VOLUME ["/var/log/cups"]
EXPOSE 631
CMD ["/usr/sbin/cupsd", "-f"]
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