Dockerfile

FROM registry.ofr.cloud/devops/baseimage:1.1.3

ENV DEBIAN_FRONTEND noninteractive

RUN apt-get -y update
RUN apt-get -y --force-yes install dpkg-dev debhelper

# install dependancies
RUN apt-get -y build-dep pure-ftpd

# build from source
RUN mkdir /tmp/pure-ftpd/ && \
	cd /tmp/pure-ftpd/ && \
	apt-get source pure-ftpd && \
	cd pure-ftpd-* && \
	sed -i '/^optflags=/ s/$/ --without-capabilities/g' ./debian/rules && \
	dpkg-buildpackage -b -uc

# install the new deb files
RUN dpkg -i /tmp/pure-ftpd/pure-ftpd-common*.deb
RUN apt-get -y install openbsd-inetd
RUN dpkg -i /tmp/pure-ftpd/pure-ftpd_*.deb

# Prevent pure-ftpd upgrading
RUN apt-mark hold pure-ftpd pure-ftpd-common

# Runit for pure-ftpd
RUN mkdir /etc/service/pure-ftpd
ADD pure-ftpd.sh /etc/service/pure-ftpd/run

# Setup ftp user and group, and virtual users
ADD setup-ftp.sh /tmp/
ADD virtual-users /tmp/
RUN /tmp/setup-ftp.sh

# Clean up APT when done.
RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

EXPOSE 21/tcp