批量化部署kvm虚拟机 shell脚本

#!/usr/bin/bash
#Author：fanzhu
#kvm自动化批量部署 需要脚本运行之前准备好模板镜像和配置文件模板
stty erase ^H
while i>1
do
clear
cat <<-EOF
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-                       注意！需提前准备模板配置文件和模板镜像没有请创建                        -
-                       vmmodel.xml模板配置文件在/etc/libvirt/qemu                             -
-                       vmmodel.qcow2的模板镜像在/var/lib/libvirt/images                       -
-                       *************************************************                       -
-                       +       A.创建单个自定义虚拟机                  +                       -
-                       +       B.创建多个自定义的虚拟机                +                       -
-                       +       C.创建多个默认配置的虚拟机              +                       -
-                       +       D.删除虚拟机                            +                       -
-                       +       Q.退出                                  +                       -
-                       *************************************************                       -
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
read -p "请输入你要操作的选项：" var
base_define(){
     
kvmname=`openssl rand -hex 5`
kvmuuid=`uuidgen`
kvmmem=${memnum:-1}000000
kvmcpu=${cpunum:-1}
kvmmac=`openssl rand -hex 3 | sed -r 's/..\B/&:/g'`
image=/var/lib/libvirt/images/vmmodel.qcow2
xml=/etc/libvirt/qemu/vmmodel.xml
newimage=/var/lib/libvirt/images/${kvmname}.qcow2
newxml=/etc/libvirt/qemu/${kvmname}.xml
cp $image  $newimage
cp $xml  $newxml
}
default_define(){
     
sed -i "s@kvmname@$kvmname@g;s@kvmuuid@$kvmuuid@g;s@kvmmem@$kvmmem@g;s@kvmcpu@$kvmcpu@g;s@image_ad@$newimage@g;s@kvmmac@$kvmmac@g" $newxml
virsh define $newxml
virsh list --all
}
del_define(){
     
echo `virsh list --all|awk -F ' ' '{print $2}'`
read -p "请输入你要删除的虚拟机的名称:" name
virsh undefine $name
rm -rf /var/lib/libvirt/images/$name.qcow2
}
case $var in 
A|a)
read -p "请输入你所需要创建虚拟机的内存大小（G）：" memnum
read -p "请输入你所需要创建虚拟机的cpu的个数:" cpunum
base_define
default_define
echo "装配完成root用户密码为123456"
		;;
B|b)
read -p "请输入你所需要创建虚拟机的内存大小（G）：" memnum
read -p "请输入你所需要创建虚拟机的cpu的个数:" cpunum
read -p "请输入你所需要创建虚拟机的台数:" num
for ((i=1;i<=$num;i++))
do
	base_define
	default_define
done
echo "装配完成，所有批量部署的机器root用户密码均为123456"
		;;
C|c)
echo "默认配置为1G内存,1cpu"
read -p "请输入你所需要创建虚拟机的台数:" num
for ((i=1;i<=$num;i++))
do
	base_define
	default_define
done
echo "装配完成，所有批量部署机器root用户密码均为123456"
		;;
D|d)
del_define
read -p "是否继续删除虚拟机? y|n" ask
case $ask in
	Y|y)
	del_define
			;;
	N|n)
	exit
			;;
	*)
	printf "请输入字符y或者n"
			;;
esac
		;;
Q|q)
exit
		;;
*)
printf "请按照上面的选项进行输入！！！\n"
		;;
esac
done

模板配置文件如下

#vim /etc/libvirt/qemu

<domain type='kvm'>
  <name>kvmname</name>
  <uuid>kvmuuid</uuid>
  <memory unit='KiB'>kvmmem</memory>
  <currentMemory unit='KiB'>kvmmem</currentMemory>
  <vcpu placement='static'>kvmcpu</vcpu>
  <os>
    <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu mode='custom' match='exact' check='partial'>
    <model fallback='allow'>Opteron_G2</model>
    <feature policy='require' name='ibpb'/>
  </cpu>
  <clock offset='utc'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <pm>
    <suspend-to-mem enabled='no'/>
    <suspend-to-disk enabled='no'/>
  </pm>
  <devices>
    <emulator>/usr/libexec/qemu-kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='image_ad'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <target dev='hda' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <controller type='usb' index='0' model='ich9-ehci1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
      <master startport='0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0' multifunction='on'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci2'>
      <master startport='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
      <master startport='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'/>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:kvmmac'/>
      <source network='default'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target type='isa-serial' port='0'>
        <model name='isa-serial'/>
      </target>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <channel type='unix'>
      <target type='virtio' name='org.qemu.guest_agent.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <channel type='spicevmc'>
      <target type='virtio' name='com.redhat.spice.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='2'/>
    </channel>
    <input type='tablet' bus='usb'>
      <address type='usb' bus='0' port='1'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='spice' autoport='yes'>
      <listen type='address'/>
      <image compression='off'/>
    </graphics>
    <sound model='ich6'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </sound>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='2'/>
    </redirdev>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='3'/>
    </redirdev>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </memballoon>
    <rng model='virtio'>
      <backend model='random'>/dev/urandom</backend>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
    </rng>
  </devices>
</domain>