Manuel Amador (Rudd-O) 05c020e1f6 Source code committed
2010-08-11 09:13:29 -07:00

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#!/usr/bin/env bash
# $Id: rundomr.sh 9132 2010-06-04 20:17:43Z manuel $ $HeadURL: svn://svn.lab.vmops.com/repos/vmdev/java/scripts/storage/zfs/nfs/rundomr.sh $
# rundomr.sh -- start a domR
#
#
#set -x
usage() {
printf "Usage: %s: -v <vnet-id> -i <eth1 ip-address> -m <memory in MB> -a <eth0 mac address> -A <eth1 mac address> -p <eth2 mac address> -P <eth2 ip addr> -n <eth1 eth1mask> -N <eth2 eth1mask> -g <default gw ip> -l <vm label> <image-dir>\n" $(basename $0) >&2
}
check_vnetd_running() {
/sbin/lsmod | grep vnet_module > /dev/null
local module_loaded=$?
if [[ ( -z $(pidof vnetd) ) && ( $module_loaded -ne 0 ) ]]
then
printf 'vnet: Neither userspace daemon running nor kernel module loaded!, not starting vm '"$vmname\n" >&2
exit 2
fi
}
# check if ip address is already used
check_ip() {
ping -c 1 -n -q $1 > /dev/null
if [ $? -eq 0 ]
then
printf "Error: ip address $1 already in use...exiting\n" >&2
exit 2
fi
}
create_vnet () {
local vnetid=$1
local bridgeid="vnbr""$vnetid"
local vnifid="vnif""$vnetid"
local longvnetid="0000:0000:0000:0000:0000:0000:0000:""$vnetid"
eval "$2=$bridgeid"
# Create the vnet even if it already exists. /usr/sbin/vn operation is
# idempotent
vn vnet-create -b ${bridgeid} ${longvnetid} &> /dev/null
#echo $bridgeid $vnifid $longvnetid
return 0
}
vflag=
iflag=
mflag=
aflag=
gflag=
lflag=
nflag=
Aflag=
dflag=
bflag=
pflag=
Iflag=
Nflag=
dnsoptions=
xenbr=
while getopts 'v:i:m:a:A:g:l:n:d:b:p:I:N:' OPTION
do
case $OPTION in
v) vflag=1
vnetid="$OPTARG"
;;
i) iflag=1
eth1ip="$OPTARG"
;;
m) mflag=1
ram="$OPTARG"
;;
a) aflag=1
eth0mac="$OPTARG"
;;
A) Aflag=1
eth1mac="mac=$OPTARG"
;;
g) gflag=1
gateway="$OPTARG"
;;
n) nflag=1
eth1mask="$OPTARG"
;;
l) lflag=1
vmname="$OPTARG"
;;
d) dflag=1
dnsoptions="$OPTARG"
;;
p) pflag=1
eth2mac="$OPTARG"
;;
I) Iflag=1
eth2ip="$OPTARG"
;;
N) Nflag=1
eth2mask="$OPTARG"
;;
b) bflag=1
xenbr="$OPTARG"
;;
?) usage
exit 2
;;
esac
done
#-d & -b is optional
if [ "$Aflag$vflag$mflag$iflag$aflag$nflag$gflag$lflag" != "11111111" ]
then
usage
exit 2
fi
shift $(($OPTIND - 1))
imagedir=$1
if [ -z $imagedir ]
then
usage
exit 2
fi
if xm list $vmname &>/dev/null
then
printf "Error: domR $vmname already exists\n" >&2
exit 2
fi
#make sure vnetd is running
check_vnetd_running
# grab the kernel, bootloader and disk images
kernel="$imagedir/"$(ls $imagedir | grep vmlinuz)
ramdisk="$imagedir/"$(ls $imagedir | grep initrd)
rootdisk="$imagedir/"$(ls $imagedir | grep vmi-root)
swapdisk="$imagedir/"$(ls $imagedir | grep swap)
if [ "$rootdisk" == "$imagedir/" ]
then
printf "Error: No root disk found\nVM $vmname not started\n" >&2
exit 2
fi
if [ "$kernel" == "$imagedir/" ] || [ "$ramdisk" == "$imagedir/" ]
then
printf "Could not find kernel and initrd images, exiting\n" >&2
exit 2
fi
#ensure no ip address clash
check_ip $eth1ip
# Create the vnet locally if not already created
bridge=""
if ! create_vnet "$vnetid" bridge ; then
printf "Failed to create vnet, exiting\n" >&2
exit 5
fi
eth2br=
if [ -n "$xenbr" ]
then
eth2br=",bridge=$xenbr"
fi
#echo $eth2br
# create the domR. Pass eth1 ip configuration in the "extra" flag
xm new /dev/null kernel="$kernel" name="$vmname" disk="tap:aio:$rootdisk,xvda1,w" disk="tap:aio:$swapdisk,xvda2,w" ramdisk="$ramdisk" memory=$ram vif="mac=$eth0mac,bridge=$bridge" vif="$eth1mac,bridge=eth0" vif="mac=$eth2mac$eth2br" root="/dev/xvda1 ro" ip="$eth1ip" extra="fastboot eth1ip=$eth1ip eth1mask=$eth1mask eth2ip=$eth2ip eth2mask=$eth2mask gateway=$gateway $dnsoptions"
if [ $? -gt 0 ]; then
exit 10
fi
#Kick off the vm
xm start $vmname
if [ $? -gt 0 ]; then
exit 20
fi
exit 0