sig-cloud-instance-images/Containerfile-micro

ARG ImageVersion

FROM rockylinux/rockylinux:$ImageVersion-ubi as ubi-micro-build
ARG ImageVersion
RUN yum install --installroot /mnt/rootfs coreutils-single glibc-minimal-langpack --releasever $ImageVersion --setopt install_weak_deps=false --nodocs -y && yum --installroot /mnt/rootfs clean all
RUN rm -rf /mnt/rootfs/var/cache/* /mnt/rootfs/var/log/dnf* /mnt/rootfs/var/log/yum.*

FROM scratch
LABEL summary="Rocky Linux UBI micro image" \
      org.opencontainers.image.authors="Magauer Lukas <lukas@magauer.eu>" \
      org.opencontainers.image.description="Very small image which doesn't install the package manager." \
      org.opencontainers.image.licenses="BSD-3-Clause" \
      org.opencontainers.image.url="https://github.com/rocky-linux/sig-cloud-instance-images" \
      org.opencontainers.image.vendor="Rocky Enterprise Software Foundation"

COPY --from=ubi-micro-build /mnt/rootfs/ /
COPY --from=ubi-micro-build /etc/yum.repos.d/* /etc/yum.repos.d/
CMD /bin/sh