KVM自动化网卡绑定

随着虚拟化技术不断发展与普及，越来越多的企业搭建和使用自己的虚拟化平台，这里我发一个KVM 虚拟化自动安装脚本，里面包含多网卡自动聚合配置，网卡绑定模式为4（流量叠加），脚本如下：（当然才mode=4模式，还需要在交换机配置网卡绑定）
#!/bin/sh
#Auto Make KVM Virtualization
#Author wugk 2013-12-06 bond0+br0
#Auto config bond scripts
eth_bond()
{
NETWORK=(
HWADDR=`ifconfig eth0 |egrep “HWaddr|Bcast” |tr “
” ” “|awk ”{print $5,$7,$NF}”|sed -e ”s/addr://g” -e ”s/Mask://g”|awk ”{print $1}”`
IPADDR=`ifconfig eth0 |egrep “HWaddr|Bcast” |tr “
” ” “|awk ”{print $5,$7,$NF}”|sed -e ”s/addr://g” -e ”s/Mask://g”|awk ”{print $2}”`
NETMASK=`ifconfig eth0 |egrep “HWaddr|Bcast” |tr “
” ” “|awk ”{print $5,$7,$NF}”|sed -e ”s/addr://g” -e ”s/Mask://g”|awk ”{print $3}”`
GATEWAY=`route -n|grep “UG”|awk ”{print $2}”`
)
DIR=/etc/sysconfig/network-scripts/
BAK=/data/backup/`date +%Y%m%d`
if
[ ! -d $BAK ];then
mkdir -p $BAK
cp $DIR/ifcfg-eth* $BAK
else
cp $DIR/ifcfg-eth* $BAK
fi
cat />;ifcfg-bond0< DEVICE=bond0
BOOTPROTO=static
${NETWORK[1]}
${NETWORK[2]}
${NETWORK[3]}
ONBOOT=yes
TYPE=Ethernet
NM_CONTROLLED=no
EOF
yes|cp ifcfg-bond0 ifcfg-eth0 ifcfg-eth1 ifcfg-eth2 ifcfg-eth3 $DIR
yes|cp modprobe.conf /etc/modprobe.d/
echo “The Server bond0 config success !!”
}
#Auto install kvm and config br0 scripts
kvm_install()
{
cat <;/>;/dev/null
if
[ “$?” -eq “0” ];then
echo ”Congratulations, your system success supports virtualization !”
else
echo -e ”OH,your system does not support virtualization !
Please modify the BIOS virtualization options (Virtualization Technology)”
exit 0
fi
if
[ -e /usr/bin/virsh ];then
echo “Virtualization is already installed ,Please exit ….” ;exit 0
fi
yum -y install ${KVM_SOFT[@]}
/sbin/modprobe kvm
ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-kvm
lsmod | grep kvm />;/>;/dev/null
if
[ “$?” -eq “0” ];then
echo ”KVM installation is successful !”
else
echo ”KVM installation is falis,Please check ……”
exit 1
fi
cd /etc/sysconfig/network-scripts/
mkdir -p /data/backup/`date +%Y%m%d-%H:%M`
yes|cp ifcfg-eth* /data/backup/`date +%Y%m%d-%H:%M`/
if
[ -e /etc/sysconfig/network-scripts/ifcfg-br0 ];then
echo “The ifcfg-br0 already exist ,Please wait exit ……”
exit 2
else
cat />;ifcfg-bond0 <;ifcfg-br0 < DEVICE=”br0″
BOOTPROTO=none
#${NETWORK[0]}
IPV6INIT=no
NM_CONTROLLED=no
ONBOOT=yes
TYPE=”Bridge”
${NETWORK[1]}
${NETWORK[2]}
${NETWORK[3]}
USERCTL=no
EOF
fi
echo ”Your can restart Ethernet Service: /etc/init.d/network restart !”
echo ”———————————————————”
sleep 1
echo ”Your can restart KVM Service : /etc/init.d/libvirtd restart !”
echo
echo -e “You can create a KVM virtual machine:
virt-install –name=centos01 –ram 512 –vcpus=1 –disk path=/data/kvm/centos01.img,size=7,bus=virtio –accelerate –cdrom /data/iso/centos58.iso –vnc –vncport=5910 –vnclisten=0.0.0.0 –network bridge=br0,model=virtio –noautoconsole”
}
case $1 in
eth_bond )
eth_bond
;
kvm_install )
kvm_install
;
* )
echo “Usage: { $0 eth_bond|kvm_install|help}”
esac
附: ifcfg-eth0内容：
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes
TYPE=Ethernet
NM_CONTROLLED=no

<strong>附: modprobe.conf内容：
alias bond0 bonding
options bond0 miimon=100 mode=4
 
</strong>
<strong>H3C交换机端需要做的配置如下：
system-view
interface Bridge-Aggregation 100
link-aggregation mode dynamic
quit
interface GigabitEthernet1/0/28
port link-aggregation group 100
quit
interface GigabitEthernet1/0/29
port link-aggregation group 100
quit
interface GigabitEthernet1/0/33
port link-aggregation group 100
quit
interface GigabitEthernet1/0/30
port link-aggregation group 100
quit
</strong>

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