#!/bin/bash

#hosts="cluster1 cluster2 cluster3 cluster4 lic sanchoplan stereovideowall stereovideofloor video loadingapp"
hosts="testmachine"
pxeconfdir="/var/lib/tftpboot/pxelinux.cfg"
scriptpath="/srv/scripts"


# check for configfile
if [ -d $pxeconfdir ]; then
    if [ -r $pxeconfdir/default ]; then
        echo "default pxe config exists and is readable"
    else
        echo "default pxe config does not exist"

	# create default pxe config
        echo "creating config"
        cp $scriptpath/tftpboot_default $pxeconfdir/default
    fi
else
    echo "there is no $pxeconfdir"
    echo "are you sure you're running this script on your pxe server"
    echo "exiting"
    exit 1
fi

# cleaning up any previous mac address config files in pxeconfdir
echo "cleaning up previous mac address configurations in $pxeconfdir"
rm $pxeconfdir/00-* &> /dev/null

# starting actual backup process
set -- $hosts

for var in "$@"; do

    echo "starting backup of $var"

    # get mac for pxe config
    macstring=$(cat $scriptpath/mac2hostname.lst | grep $var)
    mac=${macstring:0:17}
    correctmac="${mac//:/-}"
    echo "mac of $var is $correctmac"

    # create pxc config for $var
    cp $scriptpath/tftpboot_mac $pxeconfdir/01-$correctmac

    # remote reboot
    echo "making the actual reboot of $var"
    ssh -l Administrator $var shutdown -f -r -t 05

    # sleep for 15 minutes
    echo "sleeping for 10 minutes"
    sleep 600

    # remove temp pxe config for $var
    echo "removing mac address configurations in $pxeconfdir"
    rm $pxeconfdir/01-$correctmac
done

# end of script
echo "end of script, exiting"
exit 0