Munin contributed plugins

#!/usr/bin/python

# Revision 1.0  2008/05/16 - Steven Wagner

# First functional release. Works for me.

#

# Revision 0.5  2008/05/01  - Julien Rottenberg

# initial display of variables from libvirt

#python-libvirt is required

import libvirt

import sys

conn = libvirt.openReadOnly("qemu:///system")

if conn == None:

    print 'Failed to open connection to the hypervisor'

    sys.exit(1)

try:

    (model, memory, cpus, mhz, nodes, socket, cores, threads) = conn.getInfo()

except:

    print 'getInfo failed'

    sys.exit(1)

#print

#print "KVM running on %d %s %d mhz CPUs w/ %d MB RAM." % (cpus, model, mhz, memory)

#print

ids = conn.listDomainsID()

if ids == None or len(ids) == 0:

    print 'No running domains found.'

    sys.exit(1)

if len(sys.argv) == 2:

    if sys.argv[1] == "config":

        print "graph_title KVM Domain CPU Utilization"

        print "graph_vlabel CPU use in seconds"

        print "graph_args --base 1000"

        print "graph_category virtualization"

        for id in ids:

            dom = conn.lookupByID(id)

            nodeName = dom.name()

            print "%s.type COUNTER" %(nodeName)

            print "%s.label %s" %(nodeName, nodeName)

        sys.exit(1)

for id in ids:

    dom = conn.lookupByID(id)

    state, maxMem, memory, numVirtCpu, cpuTime = dom.info()

    nodeName = dom.name()

#    uuid = dom.UUID()

#    ostype = dom.OSType()

#    print """Domain: %s, %s state (%s), %d CPUs, %d seconds, %d milliseconds, mem/max (%d/%d) """ \

#          % (nodeName, ostype, state, numVirtCpu, cpuTime/float(1000000000), cpuTime/float(1000000), memory, maxMem )

    print "%s.value %d" % (nodeName, cpuTime/float(1000000))