ARG SYSBASE=almalinux:8
FROM ${SYSBASE} as builder

RUN mkdir /mnt/sys-root; \
    dnf install \
    --installroot /mnt/sys-root \
    --releasever 8 \
    --setopt install_weak_deps=false \
    --nodocs -y \
    coreutils-single \
    glibc-minimal-langpack \
    microdnf \
    libusbx \
    langpacks-en \
    rootfiles; \
    dnf --installroot /mnt/sys-root clean all;
# Additional hacks for kickstart file and backward compatable support
RUN rm -rf /mnt/sys-root/var/log/dnf* /mnt/sys-root/var/log/yum.* /mnt/sys-root/var/cache/dnf /mnt/sys-root/var/lib/dnf/repos; \
    rm -rf /mnt/sys-root/var/lib/dnf/history* /mnt/sys-root/var/log/hawkey.log /mnt/sys-root/boot /mnt/sys-root/dev/null /mnt/sys-root/run/*; \
    mkdir -p /mnt/sys-root/run/lock; \
    # generate build time file for compatibility with CentOS
    /bin/date +%Y%m%d_%H%M > /mnt/sys-root/etc/BUILDTIME; \
    echo '%_install_langs C.utf8' > /mnt/sys-root/etc/rpm/macros.image-language-conf; \
    echo 'LANG="C.utf8"' >  /mnt/sys-root/etc/locale.conf; \
    echo 'container' > /mnt/sys-root/etc/dnf/vars/infra; \
    touch /mnt/sys-root/etc/.pwd.lock; \
    chmod 600 /mnt/sys-root/etc/.pwd.lock; \
    echo '0.0 0 0.0' > /mnt/sys-root/etc/adjtime; \
    echo '0' >> /mnt/sys-root/etc/adjtime; \
    echo 'UTC' >> /mnt/sys-root/etc/adjtime; \
    echo '# This file has been generated by the Anaconda Installer.' > /mnt/sys-root/etc/sysconfig/sshd-permitrootlogin ;\
    echo '# Allow root to log in using ssh. Remove this file to opt-out.' >> /mnt/sys-root/etc/sysconfig/sshd-permitrootlogin ;\
    echo 'PERMITROOTLOGIN="-oPermitRootLogin=yes"' >> /mnt/sys-root/etc/sysconfig/sshd-permitrootlogin ;\
    echo 'KEYMAP="us"' > /mnt/sys-root/etc/vconsole.conf; \
    echo 'FONT="eurlatgr"' >> /mnt/sys-root/etc/vconsole.conf; \
    rm -rf /mnt/sys-root/usr/share/locale/en_CA/ /mnt/sys-root/usr/share/locale/en_GB/ /mnt/sys-root/usr/share/locale/en@* /mnt/sys-root/usr/share/locale/en  /mnt/sys-root/usr/share/locale/en*@* /mnt/sys-root/usr/share/i18n/charmaps /mnt/sys-root/usr/share/i18n/locales ;\
    rm -f /mnt/sys-root/etc/machine-id; \
    touch /mnt/sys-root/etc/machine-id; \
    touch /mnt/sys-root/etc/resolv.conf; \
    touch /mnt/sys-root/etc/hostname; \
    cd /mnt/sys-root/etc ; \
    ln -s ../usr/share/zoneinfo/UTC localtime

# Almalinux minimal build
FROM scratch
COPY --from=builder /mnt/sys-root/ /

CMD ["/bin/bash"]