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#!/usr/bin/env python
# dominfo - print some information about a domain
import libvirt
import sys
import os
import libxml2
import pdb
def usage():
print 'Usage: %s DOMAIN' % sys.argv[0]
print ' Print information about the domain DOMAIN'
def print_section(title):
print "\n%s" % title
print "=" * 60
def print_entry(key, value):
print "%-10s %-10s" % (key, value)
def print_xml(key, ctx, path):
res = ctx.xpathEval(path)
if res is None or len(res) == 0:
value="Unknown"
else:
value = res[0].content
print_entry(key, value)
return value
if len(sys.argv) != 2:
usage()
sys.exit(2)
name = sys.argv[1]
# Connect to libvirt
conn = libvirt.openReadOnly(None)
if conn is None:
print 'Failed to open connection to the hypervisor'
sys.exit(1)
try:
dom = conn.lookupByName(name)
# Annoyiingly, libvirt prints its own error message here
except libvirt.libvirtError:
print "Domain %s is not running" % name
sys.exit(0)
info = dom.info()
print_section("Domain info")
print_entry("State:", info[0])
print_entry("MaxMem:", info[1])
print_entry("UsedMem:", info[2])
print_entry("VCPUs:", info[3])
# Read some info from the XML desc
xmldesc = dom.XMLDesc(0)
doc = libxml2.parseDoc(xmldesc)
ctx = doc.xpathNewContext()
print_section("Kernel")
print_xml("Type:", ctx, "/domain/os/type")
print_xml("Kernel:", ctx, "/domain/os/kernel")
print_xml("initrd:", ctx, "/domain/os/initrd")
print_xml("cmdline:", ctx, "/domain/os/cmdline")
print_section("Devices")
devs = ctx.xpathEval("/domain/devices/*")
for d in devs:
ctx.setContextNode(d)
#pdb.set_trace()
type = print_xml("Type:", ctx, "@type")
if type == "file":
print_xml("Source:", ctx, "source/@file")
print_xml("Target:", ctx, "target/@dev")
elif type == "block":
print_xml("Source:", ctx, "source/@dev")
print_xml("Target:", ctx, "target/@dev")
elif type == "bridge":
print_xml("Source:", ctx, "source/@bridge")
print_xml("MAC Addr:", ctx, "mac/@address")
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