ARG PLATFORM=rockylinux:8
FROM ${PLATFORM}
RUN dnf install -y systemd systemd-libs procps wget rsyslog findutils dbus
RUN dnf --nobest install -y cracklib-dicts diffutils elfutils epel-release expect findutils iproute gawk gcc-c++ gdb hostname lz4 patch perl procps-ng rsyslog sudo tar wget which

# Remove fake systemd units that break container boot
RUN find /lib/systemd/system \
         /etc/systemd/system \
         -path '*.wants/*' \
         -name '*.service' \
         -type l -exec rm -f {} \;

# Mask things that fight in a container
RUN systemctl mask \
      systemd-remount-fs.service \
      dev-hugepages.mount \
      sys-fs-fuse-connections.mount \
      systemd-logind.service \
      getty.target console-getty.service

# Tell systemd we’re in a container
RUN echo 'DefaultEnvironment=container=docker' >> /etc/systemd/system.conf

# Entrypoint = systemd
STOPSIGNAL SIGRTMIN+3
CMD ["/lib/systemd/systemd"]