Source code for ceilometer.tests.unit.compute.virt.libvirt.test_inspector
# Copyright 2012 Red Hat, Inc
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""Tests for libvirt inspector.
"""
import fixtures
import mock
from oslo_utils import units
from oslotest import base
from ceilometer.compute.virt import inspector as virt_inspector
from ceilometer.compute.virt.libvirt import inspector as libvirt_inspector
from ceilometer.compute.virt.libvirt import utils
from ceilometer import service
[docs]class VMInstance(object):
id = 'ff58e738-12f4-4c58-acde-77617b68da56'
name = 'instance-00000001'
[docs]class TestLibvirtInspection(base.BaseTestCase):
[docs] def setUp(self):
super(TestLibvirtInspection, self).setUp()
conf = service.prepare_service([], [])
self.instance = VMInstance()
libvirt_inspector.libvirt = mock.Mock()
libvirt_inspector.libvirt.getVersion.return_value = 5001001
libvirt_inspector.libvirt.VIR_DOMAIN_SHUTOFF = 5
libvirt_inspector.libvirt.libvirtError = FakeLibvirtError
utils.libvirt = libvirt_inspector.libvirt
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=None):
self.inspector = libvirt_inspector.LibvirtInspector(conf)
[docs] def test_inspect_instance_stats(self):
domain = mock.Mock()
domain.info.return_value = (0, 0, 0, 2, 999999)
domain.memoryStats.return_value = {'available': 51200,
'unused': 25600,
'rss': 30000,
'swap_in': 5120,
'swap_out': 8192}
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
conn.domainListGetStats.return_value = [({}, {
'cpu.time': 999999,
'vcpu.maximum': 4,
'vcpu.current': 2,
'vcpu.0.time': 10000,
'vcpu.0.wait': 10000,
'vcpu.2.time': 10000,
'vcpu.2.wait': 10000,
'perf.cmt': 90112,
'perf.cpu_cycles': 7259361,
'perf.instructions': 8815623,
'perf.cache_references': 74184,
'perf.cache_misses': 16737,
'perf.mbmt': 1892352,
'perf.mbml': 1802240})]
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
stats = self.inspector.inspect_instance(self.instance, None)
self.assertEqual(2, stats.cpu_number)
self.assertEqual(40000, stats.cpu_time)
self.assertEqual(90112, stats.cpu_l3_cache_usage)
self.assertEqual(25600 / units.Ki, stats.memory_usage)
self.assertEqual(30000 / units.Ki, stats.memory_resident)
self.assertEqual(5120 / units.Ki, stats.memory_swap_in)
self.assertEqual(8192 / units.Ki, stats.memory_swap_out)
self.assertEqual(1892352, stats.memory_bandwidth_total)
self.assertEqual(1802240, stats.memory_bandwidth_local)
self.assertEqual(7259361, stats.cpu_cycles)
self.assertEqual(8815623, stats.instructions)
self.assertEqual(74184, stats.cache_references)
self.assertEqual(16737, stats.cache_misses)
[docs] def test_inspect_instance_stats_fallback_cpu_time(self):
domain = mock.Mock()
domain.info.return_value = (0, 0, 0, 2, 20000)
domain.memoryStats.return_value = {'available': 51200,
'unused': 25600,
'rss': 30000}
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
conn.domainListGetStats.return_value = [({}, {
'vcpu.current': 2,
'vcpu.maximum': 4,
'vcpu.0.time': 10000,
'vcpu.1.time': 10000,
'cpu.time': 999999})]
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
stats = self.inspector.inspect_instance(self.instance)
self.assertEqual(2, stats.cpu_number)
self.assertEqual(999999, stats.cpu_time)
[docs] def test_inspect_cpus_with_domain_shutoff(self):
domain = mock.Mock()
domain.info.return_value = (5, 0, 0, 2, 999999)
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
self.assertRaises(virt_inspector.InstanceShutOffException,
self.inspector.inspect_instance,
self.instance, None)
[docs] def test_inspect_vnics(self):
dom_xml = """
<domain type='kvm'>
<devices>
<!-- NOTE(dprince): interface with no target -->
<interface type='bridge'>
<mac address='fa:16:3e:93:31:5a'/>
<source bridge='br100'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' \
slot='0x03' function='0x0'/>
</interface>
<!-- NOTE(dprince): interface with no mac -->
<interface type='bridge'>
<source bridge='br100'/>
<target dev='foo'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' \
slot='0x03' function='0x0'/>
</interface>
<interface type='bridge'>
<mac address='fa:16:3e:71:ec:6d'/>
<source bridge='br100'/>
<target dev='vnet0'/>
<filterref filter=
'nova-instance-00000001-fa163e71ec6d'>
<parameter name='DHCPSERVER' value='10.0.0.1'/>
<parameter name='IP' value='10.0.0.2'/>
<parameter name='PROJMASK' value='255.255.255.0'/>
<parameter name='PROJNET' value='10.0.0.0'/>
</filterref>
<alias name='net0'/>
</interface>
<interface type='bridge'>
<mac address='fa:16:3e:71:ec:6e'/>
<source bridge='br100'/>
<target dev='vnet1'/>
<filterref filter=
'nova-instance-00000001-fa163e71ec6e'>
<parameter name='DHCPSERVER' value='192.168.0.1'/>
<parameter name='IP' value='192.168.0.2'/>
<parameter name='PROJMASK' value='255.255.255.0'/>
<parameter name='PROJNET' value='192.168.0.0'/>
</filterref>
<alias name='net1'/>
</interface>
<interface type='bridge'>
<mac address='fa:16:3e:96:33:f0'/>
<source bridge='qbr420008b3-7c'/>
<target dev='vnet2'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' \
slot='0x03' function='0x0'/>
</interface>
</devices>
</domain>
"""
interface_stats = {
'vnet0': (1, 2, 21, 22, 3, 4, 23, 24),
'vnet1': (5, 6, 25, 26, 7, 8, 27, 28),
'vnet2': (9, 10, 29, 30, 11, 12, 31, 32),
}
interfaceStats = interface_stats.__getitem__
domain = mock.Mock()
domain.XMLDesc.return_value = dom_xml
domain.info.return_value = (0, 0, 0, 2, 999999)
domain.interfaceStats.side_effect = interfaceStats
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
interfaces = list(self.inspector.inspect_vnics(
self.instance, None))
self.assertEqual(3, len(interfaces))
vnic0 = interfaces[0]
self.assertEqual('vnet0', vnic0.name)
self.assertEqual('fa:16:3e:71:ec:6d', vnic0.mac)
self.assertEqual('nova-instance-00000001-fa163e71ec6d', vnic0.fref)
self.assertEqual('255.255.255.0', vnic0.parameters.get('projmask'))
self.assertEqual('10.0.0.2', vnic0.parameters.get('ip'))
self.assertEqual('10.0.0.0', vnic0.parameters.get('projnet'))
self.assertEqual('10.0.0.1', vnic0.parameters.get('dhcpserver'))
self.assertEqual(1, vnic0.rx_bytes)
self.assertEqual(2, vnic0.rx_packets)
self.assertEqual(3, vnic0.tx_bytes)
self.assertEqual(4, vnic0.tx_packets)
self.assertEqual(21, vnic0.rx_errors)
self.assertEqual(22, vnic0.rx_drop)
self.assertEqual(23, vnic0.tx_errors)
self.assertEqual(24, vnic0.tx_drop)
vnic1 = interfaces[1]
self.assertEqual('vnet1', vnic1.name)
self.assertEqual('fa:16:3e:71:ec:6e', vnic1.mac)
self.assertEqual('nova-instance-00000001-fa163e71ec6e', vnic1.fref)
self.assertEqual('255.255.255.0', vnic1.parameters.get('projmask'))
self.assertEqual('192.168.0.2', vnic1.parameters.get('ip'))
self.assertEqual('192.168.0.0', vnic1.parameters.get('projnet'))
self.assertEqual('192.168.0.1', vnic1.parameters.get('dhcpserver'))
self.assertEqual(5, vnic1.rx_bytes)
self.assertEqual(6, vnic1.rx_packets)
self.assertEqual(7, vnic1.tx_bytes)
self.assertEqual(8, vnic1.tx_packets)
self.assertEqual(25, vnic1.rx_errors)
self.assertEqual(26, vnic1.rx_drop)
self.assertEqual(27, vnic1.tx_errors)
self.assertEqual(28, vnic1.tx_drop)
vnic2 = interfaces[2]
self.assertEqual('vnet2', vnic2.name)
self.assertEqual('fa:16:3e:96:33:f0', vnic2.mac)
self.assertIsNone(vnic2.fref)
self.assertEqual(dict(), vnic2.parameters)
self.assertEqual(9, vnic2.rx_bytes)
self.assertEqual(10, vnic2.rx_packets)
self.assertEqual(11, vnic2.tx_bytes)
self.assertEqual(12, vnic2.tx_packets)
self.assertEqual(29, vnic2.rx_errors)
self.assertEqual(30, vnic2.rx_drop)
self.assertEqual(31, vnic2.tx_errors)
self.assertEqual(32, vnic2.tx_drop)
[docs] def test_inspect_vnics_with_domain_shutoff(self):
domain = mock.Mock()
domain.info.return_value = (5, 0, 0, 2, 999999)
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
inspect = self.inspector.inspect_vnics
self.assertRaises(virt_inspector.InstanceShutOffException,
list, inspect(self.instance, None))
[docs] def test_inspect_disks(self):
dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='/path/instance-00000001/disk'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</disk>
</devices>
</domain>
"""
blockStatsFlags = {'wr_total_times': 91752302267,
'rd_operations': 6756,
'flush_total_times': 1310427331,
'rd_total_times': 29142253616,
'rd_bytes': 171460096,
'flush_operations': 746,
'wr_operations': 1437,
'wr_bytes': 13574656}
domain = mock.Mock()
domain.XMLDesc.return_value = dom_xml
domain.info.return_value = (0, 0, 0, 2, 999999)
domain.blockStats.return_value = (1, 2, 3, 4, -1)
domain.blockStatsFlags.return_value = blockStatsFlags
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
disks = list(self.inspector.inspect_disks(self.instance, None))
self.assertEqual(1, len(disks))
self.assertEqual('vda', disks[0].device)
self.assertEqual(1, disks[0].read_requests)
self.assertEqual(2, disks[0].read_bytes)
self.assertEqual(3, disks[0].write_requests)
self.assertEqual(4, disks[0].write_bytes)
self.assertEqual(91752302267, disks[0].wr_total_times)
self.assertEqual(29142253616, disks[0].rd_total_times)
[docs] def test_inspect_disks_with_domain_shutoff(self):
domain = mock.Mock()
domain.info.return_value = (5, 0, 0, 2, 999999)
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
inspect = self.inspector.inspect_disks
self.assertRaises(virt_inspector.InstanceShutOffException,
list, inspect(self.instance, None))
[docs] def test_inspect_disk_info(self):
dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='/path/instance-00000001/disk'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</disk>
</devices>
</domain>
"""
domain = mock.Mock()
domain.XMLDesc.return_value = dom_xml
domain.blockInfo.return_value = (1, 2, 3, -1)
domain.info.return_value = (0, 0, 0, 2, 999999)
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
disks = list(self.inspector.inspect_disk_info(
self.instance, None))
self.assertEqual(1, len(disks))
self.assertEqual('vda', disks[0].device)
self.assertEqual(1, disks[0].capacity)
self.assertEqual(2, disks[0].allocation)
self.assertEqual(3, disks[0].physical)
[docs] def test_inspect_disk_info_network_type(self):
dom_xml = """
<domain type='kvm'>
<devices>
<disk type='network' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='/path/instance-00000001/disk'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</disk>
</devices>
</domain>
"""
domain = mock.Mock()
domain.XMLDesc.return_value = dom_xml
domain.blockInfo.return_value = (1, 2, 3, -1)
domain.info.return_value = (0, 0, 0, 2, 999999)
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
disks = list(self.inspector.inspect_disk_info(self.instance, None))
self.assertEqual(1, len(disks))
[docs] def test_inspect_disk_info_without_source_element(self):
dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw' cache='none'/>
<backingStore/>
<target dev='hdd' bus='ide' tray='open'/>
<readonly/>
<alias name='ide0-1-1'/>
<address type='drive' controller='0' bus='1'
target='0' unit='1'/>
</disk>
</devices>
</domain>
"""
domain = mock.Mock()
domain.XMLDesc.return_value = dom_xml
domain.blockInfo.return_value = (1, 2, 3, -1)
domain.info.return_value = (0, 0, 0, 2, 999999)
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
disks = list(self.inspector.inspect_disk_info(self.instance, None))
self.assertEqual(0, len(disks))
[docs] def test_inspect_disks_without_source_element(self):
dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw' cache='none'/>
<backingStore/>
<target dev='hdd' bus='ide' tray='open'/>
<readonly/>
<alias name='ide0-1-1'/>
<address type='drive' controller='0' bus='1'
target='0' unit='1'/>
</disk>
</devices>
</domain>
"""
blockStatsFlags = {'wr_total_times': 91752302267,
'rd_operations': 6756,
'flush_total_times': 1310427331,
'rd_total_times': 29142253616,
'rd_bytes': 171460096,
'flush_operations': 746,
'wr_operations': 1437,
'wr_bytes': 13574656}
domain = mock.Mock()
domain.XMLDesc.return_value = dom_xml
domain.info.return_value = (0, 0, 0, 2, 999999)
domain.blockStats.return_value = (1, 2, 3, 4, -1)
domain.blockStatsFlags.return_value = blockStatsFlags
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
disks = list(self.inspector.inspect_disks(self.instance, None))
self.assertEqual(0, len(disks))
[docs] def test_inspect_memory_usage_with_domain_shutoff(self):
domain = mock.Mock()
domain.info.return_value = (5, 0, 51200, 2, 999999)
conn = mock.Mock()
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
self.assertRaises(virt_inspector.InstanceShutOffException,
self.inspector.inspect_instance,
self.instance, None)
[docs] def test_inspect_memory_with_empty_stats(self):
domain = mock.Mock()
domain.info.return_value = (0, 0, 51200, 2, 999999)
domain.memoryStats.return_value = {}
conn = mock.Mock()
conn.domainListGetStats.return_value = [({}, {})]
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
stats = self.inspector.inspect_instance(self.instance, None)
self.assertIsNone(stats.memory_usage)
self.assertIsNone(stats.memory_resident)
self.assertIsNone(stats.memory_swap_in)
self.assertIsNone(stats.memory_swap_out)
[docs] def test_inspect_memory_with_usable(self):
domain = mock.Mock()
domain.info.return_value = (0, 0, 0, 2, 999999)
domain.memoryStats.return_value = {'available': 76800,
'rss': 30000,
'swap_in': 5120,
'swap_out': 8192,
'unused': 25600,
'usable': 51200}
conn = mock.Mock()
conn.domainListGetStats.return_value = [({}, {})]
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
stats = self.inspector.inspect_instance(self.instance, None)
self.assertEqual(25600 / units.Ki, stats.memory_usage)
self.assertEqual(30000 / units.Ki, stats.memory_resident)
self.assertEqual(5120 / units.Ki, stats.memory_swap_in)
self.assertEqual(8192 / units.Ki, stats.memory_swap_out)
[docs] def test_inspect_perf_events_libvirt_less_than_2_3_0(self):
domain = mock.Mock()
domain.info.return_value = (0, 0, 51200, 2, 999999)
domain.memoryStats.return_value = {'rss': 0,
'available': 51200,
'unused': 25600}
conn = mock.Mock()
conn.domainListGetStats.return_value = [({}, {})]
conn.lookupByUUIDString.return_value = domain
with mock.patch('ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection', return_value=conn):
stats = self.inspector.inspect_instance(self.instance, None)
self.assertIsNone(stats.cpu_l3_cache_usage)
self.assertIsNone(stats.memory_bandwidth_total)
self.assertIsNone(stats.memory_bandwidth_local)
self.assertIsNone(stats.cpu_cycles)
self.assertIsNone(stats.instructions)
self.assertIsNone(stats.cache_references)
self.assertIsNone(stats.cache_misses)
[docs]class TestLibvirtInspectionWithError(base.BaseTestCase):
[docs] def setUp(self):
super(TestLibvirtInspectionWithError, self).setUp()
conf = service.prepare_service([], [])
self.useFixture(fixtures.MonkeyPatch(
'ceilometer.compute.virt.libvirt.utils.'
'refresh_libvirt_connection',
mock.MagicMock(side_effect=[None, Exception('dummy')])))
libvirt_inspector.libvirt = mock.Mock()
libvirt_inspector.libvirt.libvirtError = FakeLibvirtError
utils.libvirt = libvirt_inspector.libvirt
self.inspector = libvirt_inspector.LibvirtInspector(conf)
[docs] def test_inspect_unknown_error(self):
self.assertRaises(virt_inspector.InspectorException,
self.inspector.inspect_instance, 'foo', None)
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