需求背景

需要将就主机上的jumpserver迁移到新主机上

而jumpserver是运行在一个KVM虚拟机中

也没有当时的部署文档，完全不知道老旧的jumpserver是如何运行启动的

所以这里的思路是直接迁移虚拟机

而现在已经有了VMWare ESXi平台可用

具体实施

参考文档 https://www.cnblogs.com/lixinliang/p/16288254.html

查看虚拟机

原宿主机上操作

virsh list --all
 Id    Name                           State
----------------------------------------------------
 1     jumpserver                     running

查看虚拟机详细信息

原宿主机上操作

virsh dumpxml jumpserver
<domain type='kvm' id='1'>
  <name>jumpserver</name>
  <uuid>0aaf8e3d-fc65-4d4d-89ea-e3f08ab2a3e4</uuid>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static'>8</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64' machine='pc-i440fx-xenial'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu>
    <topology sockets='2' cores='2' threads='2'/>
  </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>restart</on_crash>
  <pm>
    <suspend-to-mem enabled='no'/>
    <suspend-to-disk enabled='no'/>
  </pm>
  <devices>
    <emulator>/usr/bin/kvm-spice</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/opt/kvm/jumpserver.qcow2'/>
      <backingStore/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <backingStore/>
      <target dev='hda' bus='ide'/>
      <readonly/>
      <alias name='ide0-0-0'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <controller type='usb' index='0' model='ich9-ehci1'>
      <alias name='usb'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
      <alias name='usb'/>
      <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'>
      <alias name='usb'/>
      <master startport='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
      <alias name='usb'/>
      <master startport='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <controller type='ide' index='0'>
      <alias name='ide'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <interface type='bridge'>
      <mac address='11:11:11:11:71:11'/>
      <source bridge='br0'/>
      <target dev='vnet0'/>
      <model type='virtio'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/2'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
    <console type='pty' tty='/dev/pts/2'>
      <source path='/dev/pts/2'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='5900' autoport='yes' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='cirrus' vram='16384' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='apparmor' relabel='yes'>
    <label>libvirt-0aaf8e3d-fc65-4d4d-89ea-11111111111</label>
    <imagelabel>libvirt-0aaf8e3d-fc65-4d4d-89ea-1111111111111111</imagelabel>
  </seclabel>
</domain>

需要关注的部分

磁盘部分

<disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/opt/kvm/jumpserver.qcow2'/>
      <backingStore/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <backingStore/>
      <target dev='hda' bus='ide'/>
      <readonly/>
      <alias name='ide0-0-0'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>

可以看到磁盘的镜像文件路径为/opt/kvm/jumpserver.qcow2

另外需要关注

cpu和内存

<memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static'>8</vcpu>

创建目的虚拟机的时候需要用到

将磁盘镜像的格式qcow2转换成vmdk格式

在将KVM虚拟机镜像迁移至esxi之前需要先转换格式，将kvm虚拟机由qcow2转换成vmdk格式,为了防止镜像被拆分为2GB的小块，需要增加 compat6 的选项。

磁盘镜像路径为/opt/kvm/jumpserver.qcow2。

原宿主机上操作

cd /opt/kvm/
mkdir test
cd test/
qemu-img convert -f qcow2 /opt/kvm/jumpserver.qcow2 -O vmdk test1.vmdk -o compat6

然后将test1.vmdk文件传到目标主机上，也就是vmware服务器上

vmware ESXI服务器开启ssh服务

将test1.vmdk文件传到vmware服务器上

vmware ESXI服务器上操作

找到存储目录的位置

ls -l /vmfs/volumes/datastore1/

cd /vmfs/volumes/datastore1/
#新建目标虚拟机的存储目录
mkdir jumpserver

cd jumpserver
pwd
/vmfs/volumes/642a7f6e-b511efbe-e346-11111111/jumpserver

原宿主机上操作

scp scp test1.vmdk 192.168.xxx.xx:/vmfs/volumes/642a7f6e-b511efbe-e346-11111111/jumpserver

磁盘镜像第二次转换

vmware ESXI服务器上操作

cd /vmfs/volumes/datastore1/jumpserver
vmkfstools -i test1.vmdk -d thin jumpserver-v1.vmdk
Destination disk format: VMFS thin-provisioned
Cloning disk 'jumpserver-v1.vmdk'...
Clone: 100% done.

此时的磁盘镜像就已经可以挂载到ESXI上进行正常使用了