#!/usr/bin/env bash
#
# Build the AlmaLinux 9 node rootfs and tar it as almalinux9-node-<ver>.tar.zst
# for bootapi image-based provisioning (liveimg). Usage:
#   scripts/build-rootfs.sh [version]   (version defaults to ${CI_COMMIT_TAG#v})
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "${ROOT_DIR}"

VER="${1:-${CI_COMMIT_TAG:-0.0.0-dev}}"
VER="${VER#v}"
RELEASEVER="${RELEASEVER:-9}"
ROOTFS="${ROOTFS:-${ROOT_DIR}/rootfs}"
DIST="${DIST:-${ROOT_DIR}/dist}"
OUT="${DIST}/almalinux9-node-${VER}.tar.zst"

# Read the bake list (skip comments / blank lines).
mapfile -t PKGS < <(grep -vE '^[[:space:]]*(#|$)' packages.txt)
if [ "${#PKGS[@]}" -eq 0 ]; then
  echo "ERROR: packages.txt is empty" >&2
  exit 1
fi

rm -rf "${ROOTFS}"
mkdir -p "${ROOTFS}" "${DIST}"

dnf -y --installroot="${ROOTFS}" --releasever="${RELEASEVER}" \
  --setopt=install_weak_deps=False install "${PKGS[@]}"

# Puppet agent from the puppet platform repo (baked; image.ks.tmpl %post only
# configures it).
dnf -y --installroot="${ROOTFS}" install https://yum.puppet.com/puppet8-release-el-9.noarch.rpm
dnf -y --installroot="${ROOTFS}" install puppet-agent

dnf -y --installroot="${ROOTFS}" clean all
rm -rf "${ROOTFS}"/var/cache/dnf/* "${ROOTFS}"/var/log/dnf* "${ROOTFS}"/etc/machine-id

# Reproducible, ownership/xattr/SELinux-preserving tarball.
tar --numeric-owner --acls --xattrs --selinux -C "${ROOTFS}" -caf "${OUT}" .

echo "Built: ${OUT}"
ls -lh "${OUT}"