Add UBI-like container

Rocky-9-Container-UBI.ks

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+# This is a minimal Rocky kickstart designed for docker.
+# It will not produce a bootable system
+# To use this kickstart, run make
+
+# Basic setup information
+url --url https://download.rockylinux.org/stg/rocky/9/BaseOS/$basearch/os/
+
+text
+bootloader --disable
+firewall --disabled
+network --bootproto=dhcp --device=link --activate --onboot=on
+rootpw --lock --iscrypted locked
+selinux --disabled
+shutdown
+
+keyboard us
+lang en_US.UTF-8
+timezone --utc --nontp UTC
+
+# Disk setup
+zerombr
+clearpart --all --initlabel
+autopart --noboot --nohome --noswap --nolvm --fstype=ext4
+
+# This breaks everything, apparently
+%addon com_redhat_kdump --disable
+%end
+
+# Package setup
+%packages --excludedocs --inst-langs=en --nocore --exclude-weakdeps
+bash
+binutils
+brotli
+coreutils-single
+crypto-policies-scripts
+dmidecode
+findutils
+glibc-minimal-langpack
+libcurl
+systemd
+rocky-release
+rootfiles
+tar
+vim-minimal
+which
+yum
+
+-dosfstools
+-kexec-tools
+-e2fsprogs
+-firewalld
+-fuse-libs
+-gettext*
+-gnupg2-smime
+-grub\*
+-iptables
+-kernel
+-libss
+-os-prober*
+-pinentry
+-qemu-guest-agent
+-shared-mime-info
+-trousers
+-xfsprogs
+-xkeyboard-config
+%end
+
+%post --erroronfail --log=/root/anaconda-post.log
+# container customizations inside the chroot
+
+# Stay compatible
+echo 'container' > /etc/dnf/vars/infra
+
+#Generate installtime file record
+/bin/date +%Y%m%d_%H%M > /etc/BUILDTIME
+
+# Limit languages to help reduce size.
+LANG="en_US"
+echo "%_install_langs $LANG" > /etc/rpm/macros.image-language-conf
+
+# https://bugzilla.redhat.com/show_bug.cgi?id=1727489
+echo 'LANG="C.UTF-8"' >  /etc/locale.conf
+
+# systemd fixes
+:> /etc/machine-id
+umount /run
+systemd-tmpfiles --create --boot
+
+# mask mounts and login bits
+systemctl mask \
+    console-getty.service \
+    dev-hugepages.mount \
+    getty.target \
+    sys-fs-fuse-connections.mount \
+    systemd-logind.service \
+    systemd-remount-fs.service
+
+# Cleanup the image
+rm -f /etc/udev/hwdb.bin
+rm -rf /usr/lib/udev/hwdb.d/ \
+       /boot /var/lib/dnf/history.* \
+       "/tmp/*" "/tmp/.*" || true
+
+
+%end