openstack nova导出虚拟机xml配置文件

╰+哭是因爲堅強的太久メ 2022-02-24 03:56 384阅读 0赞

有时候我们需要了解openstack 底层虚拟机的定义文件，以修改部分配置  
这里总结下导出虚拟机xml配置文件：

**1. nova list | grep IP 查找对应ip主机的uuid**

**2. nova show查看主机详情**

可以查到**instance 所在主机节点为test1 ，并且对应libvirt实例的名称为 instance-000009d7**

**3. 登录test1节点主机**

[root@test1 ~]#virsh list | grep instance-000009d7
     46    instance-000009d7              running

查询到主机的id为46

virsh导出xml文件

virsh dumpxml 46 > /tmp/nova_cd516536-69dc-4ff7-a04a-de12ae062f94.xml

内容如下：

<domain type='kvm' id='46'>
      <name>instance-000009d7</name>
      <uuid>cd516536-69dc-4ff7-a04a-de12ae062f94</uuid>
      <metadata>
        <nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0">
          <nova:package version="xxxx"/>
          <nova:name>test</nova:name>
          <nova:creationTime>2018-11-20 04:22:10</nova:creationTime>
          <nova:flavor name="testflavor">
            <nova:memory>8192</nova:memory>
            <nova:disk>60</nova:disk>
            <nova:swap>0</nova:swap>
            <nova:ephemeral>0</nova:ephemeral>
            <nova:vcpus>4</nova:vcpus>
          </nova:flavor>
          <nova:owner>
            <nova:user uuid="xxxxxxxxx">xxxx</nova:user>
            <nova:project uuid="xxx">FT-xxxx</nova:project>
          </nova:owner>
          <nova:root type="image" uuid="xxxxx"/>
        </nova:instance>
      </metadata>
      <memory unit='KiB'>8388608</memory>
      <currentMemory unit='KiB'>8388608</currentMemory>
      <vcpu placement='static' cpuset='2-47'>4</vcpu>
      <cputune>
        <shares>4096</shares>
      </cputune>
      <resource>
        <partition>/machine</partition>
      </resource>
      <sysinfo type='smbios'>
        <system>
          <entry name='manufacturer'>RDO</entry>
          <entry name='product'>OpenStack Compute</entry>
          <entry name='version'>xxxxx</entry>
          <entry name='serial'>5c1ef3ef-69b5-4053-87a5-f41d991bf663</entry>
          <entry name='uuid'>cd516536-69dc-4ff7-a04a-de12ae062f94</entry>
          <entry name='family'>Virtual Machine</entry>
        </system>
      </sysinfo>
      <os>
        <type arch='x86_64' machine='pc-i440fx-rhel7.5.0'>hvm</type>
        <boot dev='hd'/>
        <smbios mode='sysinfo'/>
      </os>
      <features>
        <acpi/>
        <apic/>
      </features>
      <cpu mode='custom' match='exact' check='full'>
        <model fallback='forbid'>Skylake-Client</model>
        <vendor>Intel</vendor>
        <topology sockets='4' cores='1' threads='1'/>
        <feature policy='require' name='ss'/>
        <feature policy='require' name='hypervisor'/>
        <feature policy='require' name='tsc_adjust'/>
        <feature policy='require' name='pdpe1gb'/>
        <feature policy='disable' name='mpx'/>
        <feature policy='disable' name='xsavec'/>
        <feature policy='disable' name='xgetbv1'/>
      </cpu>
      <clock offset='utc'>
        <timer name='pit' tickpolicy='delay'/>
        <timer name='rtc' tickpolicy='catchup'/>
        <timer name='hpet' present='no'/>
      </clock>
      <on_poweroff>destroy</on_poweroff>
      <on_reboot>restart</on_reboot>
      <on_crash>destroy</on_crash>
      <devices>
        <emulator>/usr/libexec/qemu-kvm</emulator>
        <disk type='network' device='disk'>
          <driver name='qemu' type='raw' cache='none'/>
    
          <source protocol='rbd' name='compute/CD516536-69DC-4FF7-A04A-DE12AE062F94_disk'>
            <host name='xxxxxxxx' port='6789'/>
          </source>
          <target dev='vda' bus='virtio'/>
          <alias name='virtio-disk0'/>
          <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
        </disk>
        <disk type='network' device='disk'>
          <driver name='qemu' type='raw' cache='none'/>
          <source protocol='rbd' name='volumes/volume-xxxxxxxxx'>
            <host name='xxxxxxxxx' port='6789'/>
          </source>
          <target dev='vdb' bus='virtio'/>
          <serial>fc8ce408-29c0-4d90-b1fe-a1e3787272c5</serial>
          <alias name='virtio-disk1'/>
          <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
        </disk>
        <controller type='usb' index='0' model='piix3-uhci'>
          <alias name='usb'/>
          <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
        </controller>
        <controller type='pci' index='0' model='pci-root'>
          <alias name='pci.0'/>
        </controller>
        <interface type='bridge'>
          <mac address='fa:16:3e:28:3e:45'/>
          <source bridge='xxxx'/>
          <target dev='txx8'/>
          <model type='virtio'/>
          <alias name='net0'/>
          <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
        </interface>
        <serial type='file'>
          <source path='/var/lib/nova/instances/CD516536-69DC-4FF7-A04A-DE12AE062F94/console.log'/>
          <target type='isa-serial' port='0'>
            <model name='isa-serial'/>
          </target>
          <alias name='serial0'/>
        </serial>
        <serial type='pty'>
          <source path='/dev/pts/29'/>
          <target type='isa-serial' port='1'>
            <model name='isa-serial'/>
          </target>
          <alias name='serial1'/>
        </serial>
        <console type='file'>
          <source path='/var/lib/nova/instances/CD516536-69DC-4FF7-A04A-DE12AE062F94/console.log'/>
          <target type='serial' port='0'/>
          <alias name='serial0'/>
        </console>
        <input type='tablet' bus='usb'>
          <alias name='input0'/>
          <address type='usb' bus='0' port='1'/>
        </input>
        <input type='mouse' bus='ps2'>
          <alias name='input1'/>
        </input>
        <input type='keyboard' bus='ps2'>
          <alias name='input2'/>
        </input>
        <graphics type='vnc' port='5929' autoport='yes' listen='0.0.0.0' keymap='en-us'>
          <listen type='address' address='0.0.0.0'/>
        </graphics>
        <video>
          <model type='cirrus' vram='16384' heads='1' primary='yes'/>
          <alias name='video0'/>
          <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
        </video>
        <memballoon model='virtio'>
          <stats period='10'/>
          <alias name='balloon0'/>
          <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
        </memballoon>
      </devices>
      <seclabel type='dynamic' model='dac' relabel='yes'>
        <label>+107:+107</label>
        <imagelabel>+107:+107</imagelabel>
      </seclabel>
    </domain>