cloudstack/scripts/network/ping/prepare_ping.sh
2011-04-04 19:19:42 -07:00

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#!/bin/sh
# usage prepare_ping.sh subnet tftp_dir
dhcpd_conf=
subnet=$1
tftp_dir=$2
exit_with_error() {
echo $1
exit 1
}
exit_if_fail() {
[ $? -ne 0 ] && exit_with_error "$*"
}
config_dhcpd() {
echo "$*" >> $dhcpd_conf
[ $? -ne 0 ] && exit_with_error "echo $* failed"
}
[ $# -ne 2 ] && exit_with_error "Usage:prepare_ping.sh subnet tftp_dir"
if [ -f "/etc/dhcp/dhcpd.conf" ]; then
dhcpd_conf="/etc/dhcp/dhcpd.conf"
fi
if [ x"$dhcpd_conf" == "x" ] && [ -f "/etc/dhcpd.conf" ]; then
dhcpd_conf="/etc/dhcpd.conf"
fi
if [ x"$dhcpd_conf" == "x" ]; then
exit_with_error "Cannot find dhcpd.conf"
fi
signature=`head -n 1 $dhcpd_conf`
if [ x"$signature" != x"# CloudStack" ]; then
# prepare dhcpd
cp $dhcpd_conf /etc/dhcpd.conf.bak -f
exit_if_fail "Cannot back dhcpd.conf"
echo "# CloudStack" > $dhcpd_conf
echo "# This is produced by CloudStack" >> $dhcpd_conf
config_dhcpd ddns-update-style interim\;
config_dhcpd subnet $subnet netmask 255.255.255.0 {}
config_dhcpd allow booting\;
config_dhcpd allow bootp\;
fi
# prepare tftp
pushd $tftp_dir $>/dev/null
[ -f ping.tar.bz2 ] || exit_with_error "Cannot find ping.tar.bz2 at $tftp_dir"
tar xjf ping.tar.bz2
exit_if_fail "tar xjf ping.tar.bz2 failed"
#rm ping.tar.bz2 -f
#exit_if_fail "rm ping.tar.bz2 failed"
if [ ! -d pxelinux.cfg ]; then
mkdir pxelinux.cfg
exit_if_fail "Cannot create pxelinux.cfg"
fi
popd
service dhcpd restart
exit_if_fail "service dhcpd restart failed"
exit 0