osi-tools/osi-mk.d/systemd-osi-run.sh

#!/hint/bash

load_module "$(dirname -- "${BASH_SOURCE[0]}")/testuser.sh"

post_install+=(10:systemd-osi-run:post_install)
systemd-osi-run:post_install() {
	local arg_mountpoint=$1
	
	cat <<-'EOT' > "${arg_mountpoint}/etc/systemd/system/osi-run.target"
		[Unit]
		Description=osi-run target
		Requires=multi-user.target
		After=multi-user.target
		Conflicts=rescue.target
		AllowIsolate=yes
		EOT
	ln -sT osi-run.target "${arg_mountpoint}/etc/systemd/system/default.target"

	cat <<-'EOT' > "${arg_mountpoint}/etc/systemd/system/osi-run.service"
		[Unit]
		Description=osi-run service
		Wants=network-online.target
		After=network-online.target
		ConditionPathExists=/etc/osi-run

		[Service]
		Type=oneshot
		StandardOutput=journal+console
		ExecStart=/bin/bash -c '{ su testuser -c /etc/osi-run 2>&1; echo $? > /var/log/osi-run.status; } | tee /var/log/osi-run.out; rm -f /etc/osi-run; systemctl poweroff --no-block'

		[Install]
		WantedBy=osi-run.target
		EOT
	systemctl --root="$arg_mountpoint" enable osi-run.service
}