README.md update, adding minimal test ks file

Signed-off-by: Bala Raman <srbala@gmail.com>

README.md

@@ -44,7 +44,7 @@ BUILD_KICKSTART  : Reuired - Input kickstart source file (.ks)
 BUILD_ROOTFS     : Required - Rootfs output file name 
 
 BUILD_WORK_DIR   : Optional - Working dir for kickstart source and image destination. Defaults to current directory.
-BUILD_OUTDIR     : Optional - Output directory name in working dir (default - 'result') - Optional
+BUILD_OUTDIR     : Optional - Output directory name in working directory. Ddefault value is 'result'.
 BUILD_FLAG_OUTOUT_IN_PWD : Optional - Set this flag to true to write output files in current working directory. Default value is false. When value is set to `true`, any value passed to `BUILD_OUTDIR` will be ignored.
 BUILD_FLAG_WRITE_META    : Optional - Generate meta data about the kickstart build system. Default value is true.
 BUILD_FLAG_RETAIN_LOG    : Optional - Retain generated output log files under 'logs' output directory. Default value is false.

tests/kickstarts/almalinux-8-minimal.x86_64.ks

@@ -0,0 +1,143 @@
+# This is a minimal CentOS kickstart for containers.
+# It will not produce a bootable system
+# To use this kickstart, run the following command
+# livemedia-creator --make-tar --ks="centos8-minimal.ks" --image-name="centos8-minimal.tar.xz" --no-virt
+#
+# Based on:
+# https://github.com/CentOS/sig-cloud-instance-build/blob/master/docker/centos-8.ks
+# https://pagure.io/fedora-kickstarts/raw/master/f/fedora-container-base-minimal.ks
+# https://catalog.redhat.com/software/containers/detail/5c359a62bed8bd75a2c3fba8
+
+# Basic setup information
+# install
+url --url https://repo.almalinux.org/almalinux/8/BaseOS/x86_64/os/
+bootloader --disabled
+timezone --isUtc --nontp Etc/UTC
+rootpw --lock --iscrypted locked
+keyboard us
+network --bootproto=dhcp --device=link --activate
+reboot
+
+# Disk setup
+zerombr
+clearpart --all --initlabel
+autopart --noboot --nohome --noswap --nolvm --fstype=ext4
+
+# Package setup
+%packages --excludedocs --instLangs=en --nocore --excludeWeakdeps
+almalinux-release
+bash
+coreutils-single
+glibc-minimal-langpack
+libusbx
+microdnf
+rootfiles
+-dosfstools
+-e2fsprogs
+-fuse-libs
+-gnupg2-smime
+-kernel
+-libss
+-pinentry
+-qemu-guest-agent
+-shared-mime-info
+-trousers
+-xfsprogs
+-xkeyboard-config
+%end
+
+%addon com_redhat_kdump --disable
+%end
+
+%post --erroronfail --log=/root/anaconda-post.log
+# container customizations inside the chroot
+set -eux
+
+# Limit languages to help reduce size.
+LANG="en_US"
+echo "%_install_langs $LANG" > /etc/rpm/macros.image-language-conf
+echo "LANG=C.utf8" > /etc/locale.conf
+
+# generate build time file for compatibility with CentOS
+/bin/date +%Y%m%d_%H%M > /etc/BUILDTIME
+
+# set DNF infra variable to container for compatibility with CentOS
+echo 'container' > /etc/dnf/vars/infra
+
+# import AlmaLinux PGP key
+rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-AlmaLinux
+
+# Remove network configuration files leftover from anaconda installation
+# https://bugzilla.redhat.com/show_bug.cgi?id=1713089
+rm -f /etc/sysconfig/network-scripts/ifcfg-*
+
+# Remove machine-id on pre generated images
+rm -f /etc/machine-id
+touch /etc/machine-id
+
+%end
+
+%post --logfile /root/anaconda-post.log --erroronfail
+# remove some random help txt files
+rm -fv usr/share/gnupg/help*.txt
+
+# Pruning random things
+rm usr/lib/rpm/rpm.daily
+rm -rfv usr/lib64/nss/unsupported-tools/  # unsupported
+
+# Statically linked crap
+rm -fv usr/sbin/{glibc_post_upgrade.x86_64,sln}
+ln usr/bin/ln usr/sbin/sln
+
+# Remove some dnf info
+rm -rfv /var/lib/dnf
+
+# don't need icons
+rm -rfv /usr/share/icons/*
+
+#some random not-that-useful binaries
+rm -fv /usr/bin/pinky
+
+# we lose presets by removing /usr/lib/systemd but we do not care
+rm -rfv /usr/lib/systemd
+
+# if you want to change the timezone, bind-mount it from the host or reinstall tzdata
+rm -fv /etc/localtime
+mv /usr/share/zoneinfo/UTC /etc/localtime
+rm -rfv  /usr/share/zoneinfo
+
+# Final pruning
+rm -rfv /var/cache/* /var/log/* /tmp/*
+
+# remove the original RHEL8 EULA
+# TODO: This affects the integrity of the installed rpm. Find a better way.
+rm -f /usr/share/redhat-release/EULA
+%end
+
+%post --nochroot --erroronfail --log=/mnt/sysimage/root/anaconda-post-nochroot.log
+set -eux
+
+# https://bugzilla.redhat.com/show_bug.cgi?id=1343138
+# Fix /run/lock breakage since it's not tmpfs in docker
+# This unmounts /run (tmpfs) and then recreates the files
+# in the /run directory on the root filesystem of the container
+# NOTE: run this in nochroot because "umount" does not exist in chroot
+umount /mnt/sysimage/run
+# The file that specifies the /run/lock tmpfile is
+# /usr/lib/tmpfiles.d/legacy.conf, which is part of the systemd
+# rpm that isn't included in this image. We'll create the /run/lock
+# file here manually with the settings from legacy.conf
+# NOTE: chroot to run "install" because it is not in anaconda env
+chroot /mnt/sysimage install -d /run/lock -m 0755 -o root -g root
+
+# workarount error /mnt/sysimage/run cannot be unmounted
+mount -t bind -o bind,defaults /run /mnt/sysimage/run
+
+# See: https://bugzilla.redhat.com/show_bug.cgi?id=1051816
+# NOTE: run this in nochroot because "find" does not exist in chroot
+KEEPLANG=en_US
+for dir in locale i18n; do
+    find /mnt/sysimage/usr/share/${dir} -mindepth  1 -maxdepth 1 -type d -not \( -name "${KEEPLANG}" -o -name POSIX \) -exec rm -rfv {} +
+done
+
+%end