使用 libvirt 获取来宾 KVM 的 Mac 地址

【问题标题】：Get Mac address of guest KVM with libvirt使用 libvirt 获取来宾 KVM 的 Mac 地址
【发布时间】：2018-07-28 23:26:07
【问题描述】：

我目前正在尝试获取 mac 地址，但我有点困惑。当我尝试

import libvirt  # To connect to the hypervisor


# Connect to your local hypervisor. See https://libvirt.org/uri.html
conn = libvirt.open('qemu+ssh://%s/system' % servidor.ubicacion_ip)  # Open the hypervisor in read-only mode
# conn = libvirt.open(None)  # Open the default hypervisor in read-write mode (require
if conn == None:
    raise Exception('Failed to open connection to the hypervisor')


dom = conn.lookupByName('userid_%s_servidor_%s.qcow2' % (user.id, servidor.id))

但是当我检查来宾python api commands in libvirt 但c api commands 似乎表明它应该有办法获取mac地址？

【问题讨论】：

标签： python kvm libvirt

【解决方案1】：

好的，所以我找到了一种方法，使用 xml 解析 libvirt 输出。

from salt._compat import StringIO as _StringIO
from salt.exceptions import CommandExecutionError
from xml.dom import minidom

# Connect to your local hypervisor. See https://libvirt.org/uri.html
conn = libvirt.open('qemu+ssh://%s/system' % servidor.ubicacion_ip)  # Open the hypervisor in read-only mode
# conn = libvirt.open(None)  # Open the default hypervisor in read-write mode (require
if conn == None:
    raise Exception('Failed to open connection to the hypervisor')

this_vm = conn.lookupByName('userid_%s_servidor_%s.qcow2' % (user.id, servidor.id))

macs = []
doc = minidom.parse(_StringIO(this_vm.XMLDesc(0)))
for node in doc.getElementsByTagName('devices'):
    i_nodes = node.getElementsByTagName('interface')
    for i_node in i_nodes:
        for v_node in i_node.getElementsByTagName('mac'):
            macs.append(v_node.getAttribute('address'))

【讨论】：