Munin contributed plugins

#!/usr/bin/env python3

"""

=encoding utf8

=head1 NAME

munin-libvirtpy - KVM Domain CPU Utilization

=head1 CONFIGURATION

Parsed environment variables:

python-libvirt is required

=head1 LICENSE

GPLv3

SPDX-License-Identifier: GPL-3.0-only

=head1 AUTHORS

Julien Rottenberg

Steven Wagner

=head1 MAGIC MARKERS

 #%# capabilities=autoconf

 #%# family=contrib

=cut

"""

import libvirt

import sys

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

if conn is None:

    print('Failed to open connection to the hypervisor')

    sys.exit(1)

try:

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

except BaseException as error:

    print('getInfo failed: {}'.format(error), file=sys.stderr)

    sys.exit(1)

ids = conn.listDomainsID()

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

    print('No running domains found.', file=sys.stderr)

    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(0)

for id in ids:

    dom = conn.lookupByID(id)

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

    nodeName = dom.name()

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