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Dockerfile
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ARG VERSION=8
FROM almalinux:${VERSION}
LABEL maintainer="HIFIS (https://www.hifis.net)"
ENV container=podman
# Install systemd -- See https://hub.docker.com/_/centos/
RUN rm -f /lib/systemd/system/multi-user.target.wants/*;\
rm -f /etc/systemd/system/*.wants/*;\
rm -f /lib/systemd/system/local-fs.target.wants/*; \
rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
rm -f /lib/systemd/system/basic.target.wants/*;\
rm -f /lib/systemd/system/anaconda.target.wants/*;
# Install requirements.
RUN dnf -y install rpm dnf-plugins-core \
&& dnf -y update \
&& dnf -y install \
epel-release \
initscripts \
sudo \
which \
hostname \
libyaml \
python3 \
&& dnf clean all
# Disable requiretty.
RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/' /etc/sudoers
CMD ["/usr/lib/systemd/systemd"]