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test_xenapi.py
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test_xenapi.py
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2010 Citrix Systems, 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.
"""Test suite for XenAPI."""
import ast
import base64
import contextlib
import cPickle as pickle
import functools
import os
import re
from nova.compute import api as compute_api
from nova.compute import instance_types
from nova.compute import power_state
from nova.compute import task_states
from nova.compute import vm_states
from nova import context
from nova import db
from nova import exception
from nova.openstack.common import cfg
from nova.openstack.common import importutils
from nova.openstack.common import jsonutils
from nova.openstack.common import log as logging
from nova import test
from nova.tests.db import fakes as db_fakes
from nova.tests import fake_network
from nova.tests import fake_utils
import nova.tests.image.fake as fake_image
from nova.tests import matchers
from nova.tests.xenapi import stubs
from nova.virt import fake
from nova.virt.xenapi import agent
from nova.virt.xenapi import driver as xenapi_conn
from nova.virt.xenapi import fake as xenapi_fake
from nova.virt.xenapi import host
from nova.virt.xenapi import pool
from nova.virt.xenapi import pool_states
from nova.virt.xenapi import vm_utils
from nova.virt.xenapi import vmops
from nova.virt.xenapi import volume_utils
LOG = logging.getLogger(__name__)
CONF = cfg.CONF
CONF.import_opt('compute_manager', 'nova.service')
CONF.import_opt('network_manager', 'nova.service')
CONF.import_opt('compute_driver', 'nova.virt.driver')
CONF.import_opt('host', 'nova.netconf')
CONF.import_opt('default_availability_zone', 'nova.availability_zones')
IMAGE_MACHINE = '1'
IMAGE_KERNEL = '2'
IMAGE_RAMDISK = '3'
IMAGE_RAW = '4'
IMAGE_VHD = '5'
IMAGE_ISO = '6'
IMAGE_FIXTURES = {
IMAGE_MACHINE: {
'image_meta': {'name': 'fakemachine', 'size': 0,
'disk_format': 'ami',
'container_format': 'ami'},
},
IMAGE_KERNEL: {
'image_meta': {'name': 'fakekernel', 'size': 0,
'disk_format': 'aki',
'container_format': 'aki'},
},
IMAGE_RAMDISK: {
'image_meta': {'name': 'fakeramdisk', 'size': 0,
'disk_format': 'ari',
'container_format': 'ari'},
},
IMAGE_RAW: {
'image_meta': {'name': 'fakeraw', 'size': 0,
'disk_format': 'raw',
'container_format': 'bare'},
},
IMAGE_VHD: {
'image_meta': {'name': 'fakevhd', 'size': 0,
'disk_format': 'vhd',
'container_format': 'ovf'},
},
IMAGE_ISO: {
'image_meta': {'name': 'fakeiso', 'size': 0,
'disk_format': 'iso',
'container_format': 'bare'},
},
}
def set_image_fixtures():
image_service = fake_image.FakeImageService()
image_service.images.clear()
for image_id, image_meta in IMAGE_FIXTURES.items():
image_meta = image_meta['image_meta']
image_meta['id'] = image_id
image_service.create(None, image_meta)
def get_fake_device_info():
# FIXME: 'sr_uuid', 'introduce_sr_keys', sr_type and vdi_uuid
# can be removed from the dict when LP bug #1087308 is fixed
fake_vdi_ref = xenapi_fake.create_vdi('fake-vdi', None)
fake_vdi_uuid = xenapi_fake.get_record('VDI', fake_vdi_ref)['uuid']
fake = {'block_device_mapping':
[{'connection_info': {'driver_volume_type': 'iscsi',
'data': {'sr_uuid': 'falseSR',
'introduce_sr_keys': ['sr_type'],
'sr_type': 'iscsi',
'vdi_uuid': fake_vdi_uuid,
'target_discovered': False,
'target_iqn': 'foo_iqn:foo_volid',
'target_portal': 'localhost:3260',
'volume_id': 'foo_volid',
'target_lun': 1,
'auth_password': 'my-p@55w0rd',
'auth_username': 'johndoe',
'auth_method': u'CHAP'}, },
'mount_device': 'vda',
'delete_on_termination': False}, ],
'root_device_name': '/dev/sda',
'ephemerals': [],
'swap': None, }
return fake
def stub_vm_utils_with_vdi_attached_here(function, should_return=True):
"""
vm_utils.with_vdi_attached_here needs to be stubbed out because it
calls down to the filesystem to attach a vdi. This provides a
decorator to handle that.
"""
@functools.wraps(function)
def decorated_function(self, *args, **kwargs):
@contextlib.contextmanager
def fake_vdi_attached_here(*args, **kwargs):
fake_dev = 'fakedev'
yield fake_dev
def fake_image_download(*args, **kwargs):
pass
def fake_is_vdi_pv(*args, **kwargs):
return should_return
orig_vdi_attached_here = vm_utils.vdi_attached_here
orig_image_download = fake_image._FakeImageService.download
orig_is_vdi_pv = vm_utils._is_vdi_pv
try:
vm_utils.vdi_attached_here = fake_vdi_attached_here
fake_image._FakeImageService.download = fake_image_download
vm_utils._is_vdi_pv = fake_is_vdi_pv
return function(self, *args, **kwargs)
finally:
vm_utils._is_vdi_pv = orig_is_vdi_pv
fake_image._FakeImageService.download = orig_image_download
vm_utils.vdi_attached_here = orig_vdi_attached_here
return decorated_function
class XenAPIVolumeTestCase(stubs.XenAPITestBase):
"""Unit tests for Volume operations."""
def setUp(self):
super(XenAPIVolumeTestCase, self).setUp()
self.user_id = 'fake'
self.project_id = 'fake'
self.context = context.RequestContext(self.user_id, self.project_id)
self.flags(disable_process_locking=True,
firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver',
xenapi_connection_url='test_url',
xenapi_connection_password='test_pass')
db_fakes.stub_out_db_instance_api(self.stubs)
self.instance_values = {'id': 1,
'project_id': self.user_id,
'user_id': 'fake',
'image_ref': 1,
'kernel_id': 2,
'ramdisk_id': 3,
'root_gb': 20,
'instance_type_id': '3', # m1.large
'os_type': 'linux',
'architecture': 'x86-64'}
def _create_volume(self, size=0):
"""Create a volume object."""
vol = {}
vol['size'] = size
vol['user_id'] = 'fake'
vol['project_id'] = 'fake'
vol['host'] = 'localhost'
vol['availability_zone'] = CONF.default_availability_zone
vol['status'] = "creating"
vol['attach_status'] = "detached"
return db.volume_create(self.context, vol)
@staticmethod
def _make_connection_data():
return {
'volume_id': 1,
'target_iqn': 'iqn.2010-10.org.openstack:volume-00000001',
'target_portal': '127.0.0.1:3260,fake',
'target_lun': None,
'auth_method': 'CHAP',
'auth_username': 'username',
'auth_password': 'password',
}
@classmethod
def _make_connection_info(cls):
return {
'driver_volume_type': 'iscsi',
'data': cls._make_connection_data()
}
def test_mountpoint_to_number(self):
cases = {
'sda': 0,
'sdp': 15,
'hda': 0,
'hdp': 15,
'vda': 0,
'xvda': 0,
'0': 0,
'10': 10,
'vdq': -1,
'sdq': -1,
'hdq': -1,
'xvdq': -1,
}
for (input, expected) in cases.iteritems():
actual = volume_utils.mountpoint_to_number(input)
self.assertEqual(actual, expected,
'%s yielded %s, not %s' % (input, actual, expected))
def test_parse_volume_info_parsing_auth_details(self):
result = volume_utils.parse_volume_info(
self._make_connection_data())
self.assertEquals('username', result['chapuser'])
self.assertEquals('password', result['chappassword'])
def test_get_device_number_raise_exception_on_wrong_mountpoint(self):
self.assertRaises(
volume_utils.StorageError,
volume_utils.get_device_number,
'dev/sd')
def test_attach_volume(self):
# This shows how to test Ops classes' methods.
stubs.stubout_session(self.stubs, stubs.FakeSessionForVolumeTests)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
instance = db.instance_create(self.context, self.instance_values)
vm = xenapi_fake.create_vm(instance['name'], 'Running')
result = conn.attach_volume(self._make_connection_info(),
instance, '/dev/sdc')
# check that the VM has a VBD attached to it
# Get XenAPI record for VBD
vbds = xenapi_fake.get_all('VBD')
vbd = xenapi_fake.get_record('VBD', vbds[0])
vm_ref = vbd['VM']
self.assertEqual(vm_ref, vm)
def test_attach_volume_raise_exception(self):
# This shows how to test when exceptions are raised.
stubs.stubout_session(self.stubs,
stubs.FakeSessionForVolumeFailedTests)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
instance = db.instance_create(self.context, self.instance_values)
xenapi_fake.create_vm(instance['name'], 'Running')
self.assertRaises(exception.VolumeDriverNotFound,
conn.attach_volume,
{'driver_volume_type': 'nonexist'},
instance,
'/dev/sdc')
class XenAPIVMTestCase(stubs.XenAPITestBase):
"""Unit tests for VM operations."""
def setUp(self):
super(XenAPIVMTestCase, self).setUp()
self.network = importutils.import_object(CONF.network_manager)
self.flags(disable_process_locking=True,
instance_name_template='%d',
firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver',
xenapi_connection_url='test_url',
xenapi_connection_password='test_pass',)
xenapi_fake.create_local_srs()
xenapi_fake.create_local_pifs()
db_fakes.stub_out_db_instance_api(self.stubs)
xenapi_fake.create_network('fake', CONF.flat_network_bridge)
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
stubs.stubout_get_this_vm_uuid(self.stubs)
stubs.stubout_is_vdi_pv(self.stubs)
stubs.stub_out_vm_methods(self.stubs)
fake_utils.stub_out_utils_execute(self.stubs)
self.user_id = 'fake'
self.project_id = 'fake'
self.context = context.RequestContext(self.user_id, self.project_id)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
fake_image.stub_out_image_service(self.stubs)
set_image_fixtures()
stubs.stubout_image_service_download(self.stubs)
stubs.stubout_stream_disk(self.stubs)
def fake_inject_instance_metadata(self, instance, vm):
pass
self.stubs.Set(vmops.VMOps, 'inject_instance_metadata',
fake_inject_instance_metadata)
def fake_safe_copy_vdi(session, sr_ref, instance, vdi_to_copy_ref):
name_label = "fakenamelabel"
disk_type = "fakedisktype"
virtual_size = 777
return vm_utils.create_vdi(
session, sr_ref, instance, name_label, disk_type,
virtual_size)
self.stubs.Set(vm_utils, '_safe_copy_vdi', fake_safe_copy_vdi)
def tearDown(self):
fake_image.FakeImageService_reset()
super(XenAPIVMTestCase, self).tearDown()
def test_init_host(self):
session = xenapi_conn.XenAPISession('test_url', 'root', 'test_pass',
fake.FakeVirtAPI())
vm = vm_utils._get_this_vm_ref(session)
# Local root disk
vdi0 = xenapi_fake.create_vdi('compute', None)
vbd0 = xenapi_fake.create_vbd(vm, vdi0)
# Instance VDI
vdi1 = xenapi_fake.create_vdi('instance-aaaa', None,
other_config={'nova_instance_uuid': 'aaaa'})
vbd1 = xenapi_fake.create_vbd(vm, vdi1)
# Only looks like instance VDI
vdi2 = xenapi_fake.create_vdi('instance-bbbb', None)
vbd2 = xenapi_fake.create_vbd(vm, vdi2)
self.conn.init_host(None)
self.assertEquals(set(xenapi_fake.get_all('VBD')), set([vbd0, vbd2]))
def test_list_instances_0(self):
instances = self.conn.list_instances()
self.assertEquals(instances, [])
def test_get_rrd_server(self):
self.flags(xenapi_connection_url='myscheme://myaddress/')
server_info = vm_utils._get_rrd_server()
self.assertEqual(server_info[0], 'myscheme')
self.assertEqual(server_info[1], 'myaddress')
def test_get_diagnostics(self):
def fake_get_rrd(host, vm_uuid):
path = os.path.dirname(os.path.realpath(__file__))
with open(os.path.join(path, 'xenapi/vm_rrd.xml')) as f:
return re.sub(r'\s', '', f.read())
self.stubs.Set(vm_utils, '_get_rrd', fake_get_rrd)
fake_diagnostics = {
'vbd_xvdb_write': '0.0',
'memory_target': '4294967296.0000',
'memory_internal_free': '1415564.0000',
'memory': '4294967296.0000',
'vbd_xvda_write': '0.0',
'cpu0': '0.0042',
'vif_0_tx': '287.4134',
'vbd_xvda_read': '0.0',
'vif_0_rx': '1816.0144',
'vif_2_rx': '0.0',
'vif_2_tx': '0.0',
'vbd_xvdb_read': '0.0',
'last_update': '1328795567',
}
instance = self._create_instance()
expected = self.conn.get_diagnostics(instance)
self.assertThat(fake_diagnostics, matchers.DictMatches(expected))
def test_instance_snapshot_fails_with_no_primary_vdi(self):
def create_bad_vbd(session, vm_ref, vdi_ref, userdevice,
vbd_type='disk', read_only=False, bootable=False,
osvol=False):
vbd_rec = {'VM': vm_ref,
'VDI': vdi_ref,
'userdevice': 'fake',
'currently_attached': False}
vbd_ref = xenapi_fake._create_object('VBD', vbd_rec)
xenapi_fake.after_VBD_create(vbd_ref, vbd_rec)
return vbd_ref
self.stubs.Set(vm_utils, 'create_vbd', create_bad_vbd)
stubs.stubout_instance_snapshot(self.stubs)
# Stubbing out firewall driver as previous stub sets alters
# xml rpc result parsing
stubs.stubout_firewall_driver(self.stubs, self.conn)
instance = self._create_instance()
image_id = "my_snapshot_id"
self.assertRaises(exception.NovaException, self.conn.snapshot,
self.context, instance, image_id,
lambda *args, **kwargs: None)
def test_instance_snapshot(self):
expected_calls = [
{'args': (),
'kwargs':
{'task_state': task_states.IMAGE_PENDING_UPLOAD}},
{'args': (),
'kwargs':
{'task_state': task_states.IMAGE_UPLOADING,
'expected_state': task_states.IMAGE_PENDING_UPLOAD}}]
func_call_matcher = matchers.FunctionCallMatcher(expected_calls)
stubs.stubout_instance_snapshot(self.stubs)
stubs.stubout_is_snapshot(self.stubs)
# Stubbing out firewall driver as previous stub sets alters
# xml rpc result parsing
stubs.stubout_firewall_driver(self.stubs, self.conn)
instance = self._create_instance()
image_id = "my_snapshot_id"
self.conn.snapshot(self.context, instance, image_id,
func_call_matcher.call)
# Ensure VM was torn down
vm_labels = []
for vm_ref in xenapi_fake.get_all('VM'):
vm_rec = xenapi_fake.get_record('VM', vm_ref)
if not vm_rec["is_control_domain"]:
vm_labels.append(vm_rec["name_label"])
self.assertEquals(vm_labels, [instance['name']])
# Ensure VBDs were torn down
vbd_labels = []
for vbd_ref in xenapi_fake.get_all('VBD'):
vbd_rec = xenapi_fake.get_record('VBD', vbd_ref)
vbd_labels.append(vbd_rec["vm_name_label"])
self.assertEquals(vbd_labels, [instance['name']])
# Ensure task states changed in correct order
self.assertIsNone(func_call_matcher.match())
# Ensure VDIs were torn down
for vdi_ref in xenapi_fake.get_all('VDI'):
vdi_rec = xenapi_fake.get_record('VDI', vdi_ref)
name_label = vdi_rec["name_label"]
self.assert_(not name_label.endswith('snapshot'))
def create_vm_record(self, conn, os_type, name):
instances = conn.list_instances()
self.assertEquals(instances, [name])
# Get Nova record for VM
vm_info = conn.get_info({'name': name})
# Get XenAPI record for VM
vms = [rec for ref, rec
in xenapi_fake.get_all_records('VM').iteritems()
if not rec['is_control_domain']]
vm = vms[0]
self.vm_info = vm_info
self.vm = vm
def check_vm_record(self, conn, check_injection=False):
# Check that m1.large above turned into the right thing.
instance_type = db.instance_type_get_by_name(conn, 'm1.large')
mem_kib = long(instance_type['memory_mb']) << 10
mem_bytes = str(mem_kib << 10)
vcpus = instance_type['vcpus']
self.assertEquals(self.vm_info['max_mem'], mem_kib)
self.assertEquals(self.vm_info['mem'], mem_kib)
self.assertEquals(self.vm['memory_static_max'], mem_bytes)
self.assertEquals(self.vm['memory_dynamic_max'], mem_bytes)
self.assertEquals(self.vm['memory_dynamic_min'], mem_bytes)
self.assertEquals(self.vm['VCPUs_max'], str(vcpus))
self.assertEquals(self.vm['VCPUs_at_startup'], str(vcpus))
# Check that the VM is running according to Nova
self.assertEquals(self.vm_info['state'], power_state.RUNNING)
# Check that the VM is running according to XenAPI.
self.assertEquals(self.vm['power_state'], 'Running')
if check_injection:
xenstore_data = self.vm['xenstore_data']
self.assertEquals(xenstore_data['vm-data/hostname'], 'test')
key = 'vm-data/networking/DEADBEEF0001'
xenstore_value = xenstore_data[key]
tcpip_data = ast.literal_eval(xenstore_value)
self.assertEquals(tcpip_data,
{'broadcast': '192.168.1.255',
'dns': ['192.168.1.4', '192.168.1.3'],
'gateway': '192.168.1.1',
'gateway_v6': 'fe80::def',
'ip6s': [{'enabled': '1',
'ip': '2001:db8:0:1::1',
'netmask': 64,
'gateway': 'fe80::def'}],
'ips': [{'enabled': '1',
'ip': '192.168.1.100',
'netmask': '255.255.255.0',
'gateway': '192.168.1.1'},
{'enabled': '1',
'ip': '192.168.1.101',
'netmask': '255.255.255.0',
'gateway': '192.168.1.1'}],
'label': 'test1',
'mac': 'DE:AD:BE:EF:00:01'})
def check_vm_params_for_windows(self):
self.assertEquals(self.vm['platform']['nx'], 'true')
self.assertEquals(self.vm['HVM_boot_params'], {'order': 'dc'})
self.assertEquals(self.vm['HVM_boot_policy'], 'BIOS order')
# check that these are not set
self.assertEquals(self.vm['PV_args'], '')
self.assertEquals(self.vm['PV_bootloader'], '')
self.assertEquals(self.vm['PV_kernel'], '')
self.assertEquals(self.vm['PV_ramdisk'], '')
def check_vm_params_for_linux(self):
self.assertEquals(self.vm['platform']['nx'], 'false')
self.assertEquals(self.vm['PV_args'], '')
self.assertEquals(self.vm['PV_bootloader'], 'pygrub')
# check that these are not set
self.assertEquals(self.vm['PV_kernel'], '')
self.assertEquals(self.vm['PV_ramdisk'], '')
self.assertEquals(self.vm['HVM_boot_params'], {})
self.assertEquals(self.vm['HVM_boot_policy'], '')
def check_vm_params_for_linux_with_external_kernel(self):
self.assertEquals(self.vm['platform']['nx'], 'false')
self.assertEquals(self.vm['PV_args'], 'root=/dev/xvda1')
self.assertNotEquals(self.vm['PV_kernel'], '')
self.assertNotEquals(self.vm['PV_ramdisk'], '')
# check that these are not set
self.assertEquals(self.vm['HVM_boot_params'], {})
self.assertEquals(self.vm['HVM_boot_policy'], '')
def _list_vdis(self):
url = CONF.xenapi_connection_url
username = CONF.xenapi_connection_username
password = CONF.xenapi_connection_password
session = xenapi_conn.XenAPISession(url, username, password,
fake.FakeVirtAPI())
return session.call_xenapi('VDI.get_all')
def _list_vms(self):
url = CONF.xenapi_connection_url
username = CONF.xenapi_connection_username
password = CONF.xenapi_connection_password
session = xenapi_conn.XenAPISession(url, username, password,
fake.FakeVirtAPI())
return session.call_xenapi('VM.get_all')
def _check_vdis(self, start_list, end_list):
for vdi_ref in end_list:
if not vdi_ref in start_list:
vdi_rec = xenapi_fake.get_record('VDI', vdi_ref)
# If the cache is turned on then the base disk will be
# there even after the cleanup
if 'other_config' in vdi_rec:
if 'image-id' not in vdi_rec['other_config']:
self.fail('Found unexpected VDI:%s' % vdi_ref)
else:
self.fail('Found unexpected VDI:%s' % vdi_ref)
def _test_spawn(self, image_ref, kernel_id, ramdisk_id,
instance_type_id="3", os_type="linux",
hostname="test", architecture="x86-64", instance_id=1,
injected_files=None, check_injection=False,
create_record=True, empty_dns=False,
image_meta={'id': IMAGE_VHD,
'disk_format': 'vhd'},
block_device_info=None):
if injected_files is None:
injected_files = []
# Fake out inject_instance_metadata
def fake_inject_instance_metadata(self, instance, vm):
pass
self.stubs.Set(vmops.VMOps, 'inject_instance_metadata',
fake_inject_instance_metadata)
if create_record:
instance_values = {'id': instance_id,
'project_id': self.project_id,
'user_id': self.user_id,
'image_ref': image_ref,
'kernel_id': kernel_id,
'ramdisk_id': ramdisk_id,
'root_gb': 20,
'instance_type_id': instance_type_id,
'os_type': os_type,
'hostname': hostname,
'architecture': architecture}
instance = db.instance_create(self.context, instance_values)
else:
instance = db.instance_get(self.context, instance_id)
network_info = fake_network.fake_get_instance_nw_info(self.stubs,
spectacular=True)
if empty_dns:
# NOTE(tr3buchet): this is a terrible way to do this...
network_info[0]['network']['subnets'][0]['dns'] = []
self.conn.spawn(self.context, instance, image_meta, injected_files,
'herp', network_info, block_device_info)
self.create_vm_record(self.conn, os_type, instance['name'])
self.check_vm_record(self.conn, check_injection)
self.assertTrue(instance['os_type'])
self.assertTrue(instance['architecture'])
def test_spawn_empty_dns(self):
# Test spawning with an empty dns list.
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64",
empty_dns=True)
self.check_vm_params_for_linux()
def test_spawn_not_enough_memory(self):
self.assertRaises(exception.InsufficientFreeMemory,
self._test_spawn,
1, 2, 3, "4") # m1.xlarge
def test_spawn_fail_cleanup_1(self):
"""Simulates an error while downloading an image.
Verifies that the VM and VDIs created are properly cleaned up.
"""
vdi_recs_start = self._list_vdis()
start_vms = self._list_vms()
stubs.stubout_fetch_disk_image(self.stubs, raise_failure=True)
self.assertRaises(xenapi_fake.Failure,
self._test_spawn, 1, 2, 3)
# No additional VDI should be found.
vdi_recs_end = self._list_vdis()
end_vms = self._list_vms()
self._check_vdis(vdi_recs_start, vdi_recs_end)
# No additional VMs should be found.
self.assertEqual(start_vms, end_vms)
def test_spawn_fail_cleanup_2(self):
"""Simulates an error while creating VM record.
Verifies that the VM and VDIs created are properly cleaned up.
"""
vdi_recs_start = self._list_vdis()
start_vms = self._list_vms()
stubs.stubout_create_vm(self.stubs)
self.assertRaises(xenapi_fake.Failure,
self._test_spawn, 1, 2, 3)
# No additional VDI should be found.
vdi_recs_end = self._list_vdis()
end_vms = self._list_vms()
self._check_vdis(vdi_recs_start, vdi_recs_end)
# No additional VMs should be found.
self.assertEqual(start_vms, end_vms)
def test_spawn_fail_cleanup_3(self):
"""Simulates an error while attaching disks.
Verifies that the VM and VDIs created are properly cleaned up.
"""
stubs.stubout_attach_disks(self.stubs)
vdi_recs_start = self._list_vdis()
start_vms = self._list_vms()
self.assertRaises(xenapi_fake.Failure,
self._test_spawn, 1, 2, 3)
# No additional VDI should be found.
vdi_recs_end = self._list_vdis()
end_vms = self._list_vms()
self._check_vdis(vdi_recs_start, vdi_recs_end)
# No additional VMs should be found.
self.assertEqual(start_vms, end_vms)
@stub_vm_utils_with_vdi_attached_here
def test_spawn_raw_glance(self):
self._test_spawn(IMAGE_RAW, None, None)
self.check_vm_params_for_linux()
def test_spawn_vhd_glance_linux(self):
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64")
self.check_vm_params_for_linux()
def test_spawn_vhd_glance_windows(self):
self._test_spawn(IMAGE_VHD, None, None,
os_type="windows", architecture="i386")
self.check_vm_params_for_windows()
def test_spawn_iso_glance(self):
self._test_spawn(IMAGE_ISO, None, None,
os_type="windows", architecture="i386")
self.check_vm_params_for_windows()
def test_spawn_glance(self):
stubs.stubout_fetch_disk_image(self.stubs)
self._test_spawn(IMAGE_MACHINE,
IMAGE_KERNEL,
IMAGE_RAMDISK)
self.check_vm_params_for_linux_with_external_kernel()
def test_spawn_boot_from_volume_no_image_meta(self):
dev_info = get_fake_device_info()
self._test_spawn(None, None, None,
image_meta={}, block_device_info=dev_info)
def test_spawn_boot_from_volume_with_image_meta(self):
dev_info = get_fake_device_info()
self._test_spawn(None, None, None,
block_device_info=dev_info)
def test_spawn_netinject_file(self):
self.flags(flat_injected=True)
db_fakes.stub_out_db_instance_api(self.stubs, injected=True)
self._tee_executed = False
def _tee_handler(cmd, **kwargs):
input = kwargs.get('process_input', None)
self.assertNotEqual(input, None)
config = [line.strip() for line in input.split("\n")]
# Find the start of eth0 configuration and check it
index = config.index('auto eth0')
self.assertEquals(config[index + 1:index + 8], [
'iface eth0 inet static',
'address 192.168.1.100',
'netmask 255.255.255.0',
'broadcast 192.168.1.255',
'gateway 192.168.1.1',
'dns-nameservers 192.168.1.3 192.168.1.4',
''])
self._tee_executed = True
return '', ''
def _readlink_handler(cmd_parts, **kwargs):
return os.path.realpath(cmd_parts[2]), ''
fake_utils.fake_execute_set_repliers([
# Capture the tee .../etc/network/interfaces command
(r'tee.*interfaces', _tee_handler),
(r'readlink -nm.*', _readlink_handler),
])
self._test_spawn(IMAGE_MACHINE,
IMAGE_KERNEL,
IMAGE_RAMDISK,
check_injection=True)
self.assertTrue(self._tee_executed)
def test_spawn_netinject_xenstore(self):
db_fakes.stub_out_db_instance_api(self.stubs, injected=True)
self._tee_executed = False
def _mount_handler(cmd, *ignore_args, **ignore_kwargs):
# When mounting, create real files under the mountpoint to simulate
# files in the mounted filesystem
# mount point will be the last item of the command list
self._tmpdir = cmd[len(cmd) - 1]
LOG.debug(_('Creating files in %s to simulate guest agent'),
self._tmpdir)
os.makedirs(os.path.join(self._tmpdir, 'usr', 'sbin'))
# Touch the file using open
open(os.path.join(self._tmpdir, 'usr', 'sbin',
'xe-update-networking'), 'w').close()
return '', ''
def _umount_handler(cmd, *ignore_args, **ignore_kwargs):
# Umount would normall make files in the m,ounted filesystem
# disappear, so do that here
LOG.debug(_('Removing simulated guest agent files in %s'),
self._tmpdir)
os.remove(os.path.join(self._tmpdir, 'usr', 'sbin',
'xe-update-networking'))
os.rmdir(os.path.join(self._tmpdir, 'usr', 'sbin'))
os.rmdir(os.path.join(self._tmpdir, 'usr'))
return '', ''
def _tee_handler(cmd, *ignore_args, **ignore_kwargs):
self._tee_executed = True
return '', ''
fake_utils.fake_execute_set_repliers([
(r'mount', _mount_handler),
(r'umount', _umount_handler),
(r'tee.*interfaces', _tee_handler)])
self._test_spawn(1, 2, 3, check_injection=True)
# tee must not run in this case, where an injection-capable
# guest agent is detected
self.assertFalse(self._tee_executed)
def test_spawn_vlanmanager(self):
self.flags(network_manager='nova.network.manager.VlanManager',
vlan_interface='fake0')
def dummy(*args, **kwargs):
pass
self.stubs.Set(vmops.VMOps, '_create_vifs', dummy)
# Reset network table
xenapi_fake.reset_table('network')
# Instance id = 2 will use vlan network (see db/fakes.py)
ctxt = self.context.elevated()
instance = self._create_instance(2, False)
networks = self.network.db.network_get_all(ctxt)
for network in networks:
self.network.set_network_host(ctxt, network)
self.network.allocate_for_instance(ctxt,
instance_id=2,
instance_uuid='00000000-0000-0000-0000-000000000002',
host=CONF.host,
vpn=None,
rxtx_factor=3,
project_id=self.project_id)
self._test_spawn(IMAGE_MACHINE,
IMAGE_KERNEL,
IMAGE_RAMDISK,
instance_id=2,
create_record=False)
# TODO(salvatore-orlando): a complete test here would require
# a check for making sure the bridge for the VM's VIF is
# consistent with bridge specified in nova db
def test_spawn_with_network_qos(self):
self._create_instance()
for vif_ref in xenapi_fake.get_all('VIF'):
vif_rec = xenapi_fake.get_record('VIF', vif_ref)
self.assertEquals(vif_rec['qos_algorithm_type'], 'ratelimit')
self.assertEquals(vif_rec['qos_algorithm_params']['kbps'],
str(3 * 10 * 1024))
def test_spawn_injected_files(self):
# Test spawning with injected_files.
actual_injected_files = []
def fake_inject_file(self, method, args):
path = base64.b64decode(args['b64_path'])
contents = base64.b64decode(args['b64_contents'])
actual_injected_files.append((path, contents))
return jsonutils.dumps({'returncode': '0', 'message': 'success'})
self.stubs.Set(stubs.FakeSessionForVMTests,
'_plugin_agent_inject_file', fake_inject_file)
injected_files = [('/tmp/foo', 'foobar')]
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64",
injected_files=injected_files)
self.check_vm_params_for_linux()
self.assertEquals(actual_injected_files, injected_files)
def test_rescue(self):
instance = self._create_instance()
session = xenapi_conn.XenAPISession('test_url', 'root', 'test_pass',
fake.FakeVirtAPI())
vm_ref = vm_utils.lookup(session, instance['name'])
swap_vdi_ref = xenapi_fake.create_vdi('swap', None)
root_vdi_ref = xenapi_fake.create_vdi('root', None)
xenapi_fake.create_vbd(vm_ref, swap_vdi_ref, userdevice=1)
xenapi_fake.create_vbd(vm_ref, root_vdi_ref, userdevice=0)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
image_meta = {'id': IMAGE_VHD,
'disk_format': 'vhd'}
conn.rescue(self.context, instance, [], image_meta, '')
vm = xenapi_fake.get_record('VM', vm_ref)
rescue_name = "%s-rescue" % vm["name_label"]
rescue_ref = vm_utils.lookup(session, rescue_name)
rescue_vm = xenapi_fake.get_record('VM', rescue_ref)
vdi_uuids = []
for vbd_uuid in rescue_vm["VBDs"]:
vdi_uuids.append(xenapi_fake.get_record('VBD', vbd_uuid)["VDI"])
self.assertTrue("swap" not in vdi_uuids)
def test_unrescue(self):
instance = self._create_instance()
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
# Unrescue expects the original instance to be powered off
conn.power_off(instance)
rescue_vm = xenapi_fake.create_vm(instance['name'] + '-rescue',
'Running')
conn.unrescue(instance, None)
def test_unrescue_not_in_rescue(self):
instance = self._create_instance()
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
# Ensure that it will not unrescue a non-rescued instance.
self.assertRaises(exception.InstanceNotInRescueMode, conn.unrescue,
instance, None)
def test_finish_revert_migration(self):
instance = self._create_instance()
class VMOpsMock():
def __init__(self):
self.finish_revert_migration_called = False
def finish_revert_migration(self, instance, block_info):
self.finish_revert_migration_called = True
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn._vmops = VMOpsMock()
conn.finish_revert_migration(instance, None)
self.assertTrue(conn._vmops.finish_revert_migration_called)
def test_reboot_hard(self):
instance = self._create_instance()
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn.reboot(instance, None, "HARD")
def test_reboot_soft(self):
instance = self._create_instance()
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn.reboot(instance, None, "SOFT")
def test_reboot_halted(self):
session = xenapi_conn.XenAPISession('test_url', 'root', 'test_pass',
fake.FakeVirtAPI())
instance = self._create_instance(spawn=False)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
xenapi_fake.create_vm(instance['name'], 'Halted')
conn.reboot(instance, None, "SOFT")
vm_ref = vm_utils.lookup(session, instance['name'])
vm = xenapi_fake.get_record('VM', vm_ref)
self.assertEquals(vm['power_state'], 'Running')
def test_reboot_unknown_state(self):
instance = self._create_instance(spawn=False)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
xenapi_fake.create_vm(instance['name'], 'Unknown')
self.assertRaises(xenapi_fake.Failure, conn.reboot, instance,
None, "SOFT")
def _test_maintenance_mode(self, find_host, find_aggregate):
real_call_xenapi = self.conn._session.call_xenapi
instance = self._create_instance(spawn=True)
api_calls = {}
# Record all the xenapi calls, and return a fake list of hosts
# for the host.get_all call
def fake_call_xenapi(method, *args):
api_calls[method] = args
if method == 'host.get_all':
return ['foo', 'bar', 'baz']
return real_call_xenapi(method, *args)
self.stubs.Set(self.conn._session, 'call_xenapi', fake_call_xenapi)
def fake_aggregate_get(context, host, key):
if find_aggregate:
return [{'fake': 'aggregate'}]
else:
return []
self.stubs.Set(self.conn.virtapi, 'aggregate_get_by_host',
fake_aggregate_get)
def fake_host_find(context, session, src, dst):
if find_host:
return 'bar'
else:
raise exception.NoValidHost("I saw this one coming...")
self.stubs.Set(host, '_host_find', fake_host_find)
result = self.conn.host_maintenance_mode('bar', 'on_maintenance')
self.assertEqual(result, 'on_maintenance')
# We expect the VM.pool_migrate call to have been called to
# migrate our instance to the 'bar' host
expected = (instance['uuid'], 'bar', {})