#!/bin/bash

#4 implicit arguments passed by genimage
rootimg_dir=$1
osver=$2
arch=$3
profile=$4

#user-specified arguments in "postinstall" attribute
#the name of the service to inject
servicename=$5
#the full path of the service unit file to inject on management node(non-chroot)
servicefile=$6

echo servicename=$servicename
echo servicefile=$servicefile

#append the suffix ".service" to service name if not specified
echo "$servicename" |grep -q -e "\.service$" || servicename=$servicename.service

if [ -e "$rootimg_dir/usr/lib/systemd/" ]; then
            #if systemd is the service management framework for the diskless image
            #enable the xcatpostinit1.service
            destfile="$rootimg_dir/etc/systemd/system/$servicename"
            if [ -e "$rootimg_dir/etc/systemd/system/$servicename" ]; then
                rm -rf $destfile
            fi
            cp -f $servicefile $destfile
            rm -rf "$rootimg_dir/etc/systemd/system/multi-user.target.wants/$servicename"
            oldpwd=$(pwd)
            cd $rootimg_dir/etc/systemd/system/multi-user.target.wants/
            ln -s ../$servicename "$rootimg_dir/etc/systemd/system/multi-user.target.wants/$servicename"
            cd $oldpwd
fi