#!/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 kvm"

        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))