KVM虚拟机的克隆

目录

一.kvm虚拟机的完整克隆

1.完整克隆概述

所谓的完整克隆就是将模板机磁盘完整的拷贝一份。

完整克隆的优缺点:
	优点:
		模板机损坏并不会影响克隆机器环境。
	缺点:
		- 克隆占用空间较大;
		- 克隆时间较长;

2.使用virt-clone工具进行克隆(推荐)

	1.关闭虚拟机
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 4     yinzhengjie-kvm01              running

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh destroy yinzhengjie-kvm01 
Domain yinzhengjie-kvm01 destroyed

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-kvm01              shut off

[root@yinzhengjie-kvm189 ~]# 


	2.克隆前查看KVM虚拟机磁盘快照信息
[root@yinzhengjie-kvm189 ~]# virsh snapshot-list yinzhengjie-kvm01 
 Name                 Creation Time             State
------------------------------------------------------------
 yinzhengjie_kvm_os_installd 2024-04-08 05:05:18 +0800 running

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# qemu-img info /opt/yinzhengjie-kvm01.qcow2 
image: /opt/yinzhengjie-kvm01.qcow2
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 1.0G
cluster_size: 65536
Snapshot list:
ID        TAG                 VM SIZE                DATE       VM CLOCK
2         yinzhengjie_kvm_os_installd   282M 2024-04-08 05:05:18   00:15:26.803
Format specific information:
    compat: 1.1
    lazy refcounts: false
[root@yinzhengjie-kvm189 ~]# 

	
	
	3.使用virt-clone工具进行克隆
[root@yinzhengjie-kvm189 ~]# virsh list --all  # 克隆前查看状态
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-kvm01              shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virt-clone -o yinzhengjie-kvm01 -n yinzhengjie-kvm02 --auto-clone
Allocating 'yinzhengjie-kvm02.qcow2'                                                                      |  10 GB  00:00:15     

Clone 'yinzhengjie-kvm02' created successfully.
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all  # 克隆后查看状态
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-kvm01              shut off
 -     yinzhengjie-kvm02              shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh start yinzhengjie-kvm02  # 启动虚拟机
Domain yinzhengjie-kvm02 started

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 6     yinzhengjie-kvm02              running
 -     yinzhengjie-kvm01              shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# qemu-img info /opt/yinzhengjie-kvm02.qcow2   # 克隆后的磁盘默认的存储路径和模板机磁盘路径相同。
image: /opt/yinzhengjie-kvm02.qcow2
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 3.0G
cluster_size: 65536
Format specific information:
    compat: 1.1
    lazy refcounts: true
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ll -h /opt/yinzhengjie-kvm02.qcow2 /opt/yinzhengjie-kvm01.qcow2 
-rw-r--r--. 1 root root 1.4G Apr  8 17:29 /opt/yinzhengjie-kvm01.qcow2
-rw-------. 1 root root 1.6G Apr  8 17:36 /opt/yinzhengjie-kvm02.qcow2
[root@yinzhengjie-kvm189 ~]# 


温馨提示:
	- 克隆的虚拟机并不会克隆模板机的快照信息;
	- 默认克隆的虚拟机磁盘和模板机在同一个目录，如果想要指定克隆机器的磁盘文件到指定路径，可以做如下操作。
[root@yinzhengjie-kvm189 ~]# virt-clone -o yinzhengjie-kvm01 -n yinzhengjie05 --file /tmp/yinzhengjie-kvm05.qcow3
Allocating 'yinzhengjie-kvm05.qcow3'                                                                      |  10 GB  00:00:13     

Clone 'yinzhengjie05' created successfully.
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ll -h /tmp/yinzhengjie-kvm05.qcow3
-rw-------. 1 root root 1.6G Apr  8 18:06 /tmp/yinzhengjie-kvm05.qcow3
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 5     yinzhengjie-kvm03              running
 6     yinzhengjie-kvm02              running
 -     yinzhengjie-kvm01              shut off
 -     yinzhengjie05                  shut off

[root@yinzhengjie-kvm189 ~]#

3.手动克隆虚拟机(比较繁琐)

	1.先克隆模板机的磁盘文件("qemu-img convert"工具将一块qcow2格式磁盘转换为另一块qcow2格式时会自动抹除快照信息)
[root@yinzhengjie-kvm189 ~]# qemu-img info /opt/yinzhengjie-kvm01.qcow2
image: /opt/yinzhengjie-kvm01.qcow2
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 1.0G
cluster_size: 65536
Snapshot list:
ID        TAG                 VM SIZE                DATE       VM CLOCK
2         yinzhengjie_kvm_os_installd   282M 2024-04-08 05:05:18   00:15:26.803
Format specific information:
    compat: 1.1
    lazy refcounts: false
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# qemu-img convert -f qcow2 -O qcow2 /opt/yinzhengjie-kvm01.qcow2 /opt/yinzhengjie-kvm03.qcow2
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# qemu-img info /opt/yinzhengjie-kvm03.qcow2 
image: /opt/yinzhengjie-kvm03.qcow2
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 3.0G
cluster_size: 65536
Format specific information:
    compat: 1.1
    lazy refcounts: false
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ll -h /opt/yinzhengjie-kvm03.qcow2 /opt/yinzhengjie-kvm01.qcow2
-rw-r--r--. 1 root root 1.4G Apr  8 17:29 /opt/yinzhengjie-kvm01.qcow2
-rw-r--r--. 1 root root 1.6G Apr  8 17:42 /opt/yinzhengjie-kvm03.qcow2
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# 


	2.为虚拟机生成配置文件并修改4处位置
[root@yinzhengjie-kvm189 ~]# virsh dumpxml yinzhengjie-kvm01 > /mnt/vm_yinzhengjie_kvm03.xml 
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# vim /mnt/vm_yinzhengjie_kvm03.xml
...
<domain type='kvm'>
  ... (1.修改虚拟机的名称，虚拟机的名字要唯一)
  <name>yinzhengjie-kvm03</name>
  ... (2.删除uuid，因为每个镜像的磁盘UUID不一致，我们直接删除"<uuid></uuid>"标签即可，启动虚拟机时会自动生成。)
  
    <devices>
    ...
    <disk type='file' device='disk'>
      ... (3.修改磁盘文件路径)
      <source file='/opt/yinzhengjie-kvm03.qcow2'/>
      ...
    </disk>
	...
    <interface type='network'>
      ... (4.删除"<mac>"标签，其会自动生成MAC地址，如果mac地址冲突，则虚拟机可能无法联网。)
    </interface>
...


	3.导入虚拟机配置文件并启动虚拟机测试
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-kvm01              shut off
 -     yinzhengjie-kvm02              shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh define /mnt/vm_yinzhengjie_kvm03.xml  # 导入虚拟机配置文件
Domain yinzhengjie-kvm03 defined from /mnt/vm_yinzhengjie_kvm03.xml

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-kvm01              shut off
 -     yinzhengjie-kvm02              shut off
 -     yinzhengjie-kvm03              shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh start yinzhengjie-kvm03  # 启动虚拟机
Domain yinzhengjie-kvm03 started

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 5     yinzhengjie-kvm03              running
 -     yinzhengjie-kvm01              shut off
 -     yinzhengjie-kvm02              shut off

[root@yinzhengjie-kvm189 ~]#

二.kvm虚拟机的链接克隆

1.链接克隆概述

所谓的链接克隆就是将模板机以模板机为模板进行克隆机器，并不会完整拷贝模板机。

链接克隆是对模板机磁盘进行引用，新克隆的机器仅保留其变化的内容。

完整克隆的优缺点:
	优点:
		- 克隆占用时间少;
		- 占用空间少;
	缺点:
		- 模板机不能开机，若模板机器损坏，所有链接克隆的虚拟机都打不开了。

2.链接克隆测试

	1.移除完整克隆的测试环境
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 5     yinzhengjie-kvm03              running
 6     yinzhengjie-kvm02              running
 -     yinzhengjie-kvm01              shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh destroy yinzhengjie-kvm02 
Domain yinzhengjie-kvm02 destroyed

[root@yinzhengjie-kvm189 ~]#
[root@yinzhengjie-kvm189 ~]# virsh destroy yinzhengjie-kvm03
Domain yinzhengjie-kvm03 destroyed

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh undefine yinzhengjie-kvm02
Domain yinzhengjie-kvm02 has been undefined

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh undefine yinzhengjie-kvm03
Domain yinzhengjie-kvm03 has been undefined

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-kvm01              shut off

[root@yinzhengjie-kvm189 ~]# 


	2.移除模板机的快照信息
[root@yinzhengjie-kvm189 ~]# virsh snapshot-list yinzhengjie-kvm01
 Name                 Creation Time             State
------------------------------------------------------------
 yinzhengjie_kvm_os_installd 2024-04-08 05:05:18 +0800 running

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh snapshot-delete yinzhengjie-kvm01 --snapshotname yinzhengjie_kvm_os_installd
Domain snapshot yinzhengjie_kvm_os_installd deleted

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh snapshot-list yinzhengjie-kvm01
 Name                 Creation Time             State
------------------------------------------------------------

[root@yinzhengjie-kvm189 ~]# 


	3.创建引用磁盘，基于yinzhengjie-kvm01磁盘作为模板机
[root@yinzhengjie-kvm189 ~]# qemu-img create -f qcow2 -b /opt/yinzhengjie-kvm01.qcow2 /mnt/yinzhengjie-kvm04.qcow2
Formatting '/mnt/yinzhengjie-kvm04.qcow2', fmt=qcow2 size=10737418240 backing_file='/opt/yinzhengjie-kvm01.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off 
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# qemu-img info /mnt/yinzhengjie-kvm04.qcow2
image: /mnt/yinzhengjie-kvm04.qcow2
file format: qcow2
virtual size: 10G (10737418240 bytes)  # 磁盘的上限容量大小
disk size: 196K  # 占用的空间大小
cluster_size: 65536
backing file: /opt/yinzhengjie-kvm01.qcow2  # 后端的磁盘设备
Format specific information:
    compat: 1.1
    lazy refcounts: false
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ll -h /mnt/yinzhengjie-kvm04.qcow2 /opt/yinzhengjie-kvm01.qcow2 
-rw-r--r--. 1 root root 193K Apr  8 18:18 /mnt/yinzhengjie-kvm04.qcow2  # 但是链接克隆的磁盘文件却很小哟~
-rw-r--r--. 1 root root 1.4G Apr  8 18:25 /opt/yinzhengjie-kvm01.qcow2  # 模板机的磁盘文件很大
[root@yinzhengjie-kvm189 ~]# 

	
	
	4.为虚拟机生成配置文件并修改4处位置
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-kvm01              shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh dumpxml yinzhengjie-kvm01 > /mnt/vm_yinzhengjie_k8s231.xml 
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# vim /mnt/vm_yinzhengjie_k8s231.xml
...
<domain type='kvm'>
  ... (1.修改虚拟机的名称，虚拟机的名字要唯一)
  <name>yinzhengjie_k8s231</name>
  ... (2.删除uuid，因为每个镜像的磁盘UUID不一致，我们直接删除"<uuid></uuid>"标签即可，启动虚拟机时会自动生成。)
  
    <devices>
    ...
    <disk type='file' device='disk'>
      ... (3.修改磁盘文件路径)
      <source file='/mnt/yinzhengjie-kvm04.qcow2'/>
      ...
    </disk>
	...
    <interface type='network'>
      ... (4.删除"<mac>"标签，其会自动生成MAC地址，如果mac地址冲突，则虚拟机可能无法联网。)
    </interface>
...
	


	5.移除模板机引用(避免误操作启动了模板机，我们可以将其从KVM虚拟机列表移除)并未磁盘文件添加特殊权限
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-kvm01              shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh undefine yinzhengjie-kvm01 
Domain yinzhengjie-kvm01 has been undefined

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# chattr +i /opt/yinzhengjie-kvm01.qcow2  # 添加特殊权限
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# rm -f /opt/yinzhengjie-kvm01.qcow2  # 发现该文件无法被删除啦~
rm: cannot remove ‘/opt/yinzhengjie-kvm01.qcow2’: Operation not permitted
[root@yinzhengjie-kvm189 ~]# 


	6.导入克隆的虚拟机配置文件
[root@yinzhengjie-kvm189 ~]# virsh define /mnt/vm_yinzhengjie_k8s231.xml
Domain yinzhengjie-k8s231 defined from /mnt/vm_yinzhengjie_k8s231.xml

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-k8s231             shut off

[root@yinzhengjie-kvm189 ~]# 


	7.启动虚拟机
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     yinzhengjie-k8s231             shut off

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh start yinzhengjie-k8s231 
Domain yinzhengjie-k8s231 started

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 8     yinzhengjie-k8s231             running

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh vncdisplay yinzhengjie-k8s231 
:0

[root@yinzhengjie-kvm189 ~]#

三.全自动链接克隆脚本

1.编写克隆脚本

[root@yinzhengjie-kvm189 ~]# cat yinzhengjie-clone_qcow2_VM.sh 
#!/bin/bash
# auther: Jason Yin
# blog: https://www.cnblogs.com/yinzhengjie
# email: y1053419035@qq.com


# 指定你的qcow2的磁盘存放路径
BASEDIR=/opt
# 指定主机名称
HOSTNAME=`hostname`

function main(){
  case $1 in 
    clone|c)
      clone_vm $2 $3
      echo "尹正杰编写脚本: $2 虚拟机克隆成功[successfully]"
      ;;
    delete|d)
      rm_vm $2
      echo "尹正杰编写脚本: $2 虚拟机删除成功"
      ;;
    *)
      echo "Usage: $0 deploy[i]|delete[r] oldVmName [newVmName]"
      ;;
  esac
}


function rm_vm() {
  # 定义虚拟机的名称
  vmName=$1

  # 先停止虚拟机
  virsh destroy $vmName &> /dev/null

  [ $? -eq 0 ] && echo "${vmName} KVM虚拟机停止成功"  || echo "${vmName} KVM虚拟机不存在哟~"

  # 移除虚拟机及其配置文件
  virsh undefine $vmName

  # 清除磁盘文件
  rm -f ${BASEDIR}/${vmName}.qcow2

}


function clone_vm() {
    # 定义老的虚拟机名称
    oldVmName=$1
    
    # 定义旧的虚拟机名称
    newVmName=$2
    
    # 生成虚拟机磁盘文件
    old_disk=`virsh dumpxml $oldVmName | grep "<source file" | awk -F "'" 'NR==1{print $2}'`
    disk_tmp=`dirname $old_disk`
    qemu-img create -f qcow2 -b ${old_disk} ${disk_tmp}/${newVmName}.qcow2
    
    # 生成虚拟机的配置文件
    virsh dumpxml $oldVmName > /tmp/${newVmName}.xml
    
    # 修改虚拟机的名称
    sed -ri "s#(<name>)(.*)(</name>)#\1${newVmName}\3#g" /tmp/${newVmName}.xml
    
    # 删除虚拟机的UUID
    sed -i "/<uuid>/d" /tmp/${newVmName}.xml
    
    # 删除mac地址
    sed -i '/<mac address/d' /tmp/${newVmName}.xml
    
    # 修改磁盘路径
    sed -ri "s#(<source file=')(.*)(.qcow2'/>)#\1${disk_tmp}/${newVmName}\3#"  /tmp/${newVmName}.xml
    
    # 导入虚拟机并进行启动测试
    virsh define /tmp/${newVmName}.xml
    virsh start $newVmName

}

main $1 $2 $3
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# chmod +x yinzhengjie-clone_qcow2_VM.sh 
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ll yinzhengjie-clone_qcow2_VM.sh
-rwxr-xr-x. 1 root root 1898 Apr  8 20:11 yinzhengjie-clone_qcow2_VM.sh
[root@yinzhengjie-kvm189 ~]#

2.创建测试虚拟机

virt-install --virt-type kvm \
    --os-type=linux \
    --os-variant rhel7 \
    --name yinzhengjie-k8s \
    --memory 2048 \
    --vcpus 2 \
    --disk /opt/yinzhengjie-k8s.qcow2,format=qcow2,size=10 \
    --cdrom /opt/CentOS-7-x86_64-DVD-2009.iso \
    --network  network=default \
    --graphics vnc,listen=0.0.0.0 \
    --noautoconsole

3.克隆KVM虚拟机测试

[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 37    yinzhengjie-k8s                running

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ./yinzhengjie-clone_qcow2_VM.sh c yinzhengjie-k8s master231
Formatting '/opt/master231.qcow2', fmt=qcow2 size=10737418240 backing_file='/opt/yinzhengjie-k8s.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off 
Domain master231 defined from /tmp/master231.xml

Domain master231 started

尹正杰编写脚本: yinzhengjie-k8s 虚拟机克隆成功[successfully]
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ./yinzhengjie-clone_qcow2_VM.sh c yinzhengjie-k8s worker232
Formatting '/opt/worker232.qcow2', fmt=qcow2 size=10737418240 backing_file='/opt/yinzhengjie-k8s.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off 
Domain worker232 defined from /tmp/worker232.xml

Domain worker232 started

尹正杰编写脚本: yinzhengjie-k8s 虚拟机克隆成功[successfully]
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 37    yinzhengjie-k8s                running
 38    master231                      running
 39    worker232                      running

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ll /opt/  | egrep "231|232"  # 会创建对应的磁盘文件哟~
-rw-r--r--. 1 qemu qemu      197120 Apr  8 20:18 master231.qcow2
-rw-r--r--. 1 qemu qemu      197120 Apr  8 20:18 worker232.qcow2
[root@yinzhengjie-kvm189 ~]#

4.删除KVM虚拟机测试

[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 37    yinzhengjie-k8s                running
 38    master231                      running
 39    worker232                      running

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ./yinzhengjie-clone_qcow2_VM.sh d master231
master231 KVM虚拟机停止成功
Domain master231 has been undefined

尹正杰编写脚本: master231 虚拟机删除成功
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ./yinzhengjie-clone_qcow2_VM.sh d worker232
worker232 KVM虚拟机停止成功
Domain worker232 has been undefined

尹正杰编写脚本: worker232 虚拟机删除成功
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 37    yinzhengjie-k8s                running

[root@yinzhengjie-kvm189 ~]# 
[root@yinzhengjie-kvm189 ~]# ll /opt/  | egrep "231|232"  # Duang~磁盘文件被删除啦！
[root@yinzhengjie-kvm189 ~]#

5.脚本后续优化思路

本脚本使用临时写了一个样例脚本，以供大家学习环境测试使用。

生成环境如果要使用需要做如下优化:
	- 脚本是否需要删除磁盘文件?
	- 是否支持raw格式KVM虚拟机的克隆和删除呢?
	- 虚拟机的磁盘存储路径你的生产环境也在/opt目录吗？
posted @ 2024-03-06 23:55  尹正杰  阅读(191)  评论(0)  编辑  收藏  举报