nova/nova/tests/virt/powervm/test_powervm.py

1226 lines
52 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2013 IBM Corp.
#
# 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 PowerVMDriver.
"""
import contextlib
import mock
import os
import paramiko
from nova import context
from nova import db
from nova import exception as n_exc
from nova import test
from nova.compute import flavors
from nova.compute import power_state
from nova.compute import task_states
from nova.network import model as network_model
from nova.openstack.common import processutils
from nova.tests import fake_network_cache_model
from nova.tests.image import fake
from nova.virt import images
from nova.virt.powervm import blockdev as powervm_blockdev
from nova.virt.powervm import common
from nova.virt.powervm import constants
from nova.virt.powervm import driver as powervm_driver
from nova.virt.powervm import exception
from nova.virt.powervm import lpar
from nova.virt.powervm import operator as powervm_operator
def fake_lpar(instance_name, state=constants.POWERVM_RUNNING):
return lpar.LPAR(name=instance_name,
lpar_id=1, desired_mem=1024,
max_mem=2048, max_procs=2,
uptime=939395, state=state)
def fake_ssh_connect(connection):
"""Returns a new paramiko.SSHClient object."""
return paramiko.SSHClient()
def raise_(ex):
"""Raises the given Exception."""
raise ex
class FakePowerVMOperator(powervm_operator.PowerVMOperator):
def get_lpar(self, instance_name, resource_type='lpar'):
return fake_lpar(instance_name)
def run_vios_command(self, cmd):
pass
class FakeIVMOperator(powervm_operator.IVMOperator):
def get_lpar(self, instance_name, resource_type='lpar'):
return fake_lpar(instance_name)
def list_lpar_instances(self):
return ['instance-00000001', 'instance-00000002']
def create_lpar(self, lpar):
pass
def start_lpar(self, instance_name):
pass
def stop_lpar(self, instance_name, time_out=30):
pass
def remove_lpar(self, instance_name):
pass
def get_vhost_by_instance_id(self, instance_id):
return 'vhostfake'
def get_virtual_eth_adapter_id(self):
return 1
def get_disk_name_by_vhost(self, vhost):
return 'lvfake01'
def remove_disk(self, disk_name):
pass
def run_cfg_dev(self, device_name):
pass
def attach_disk_to_vhost(self, disk, vhost):
pass
def get_memory_info(self):
return {'total_mem': 65536, 'avail_mem': 46336}
def get_cpu_info(self):
return {'total_procs': 8.0, 'avail_procs': 6.3}
def get_disk_info(self):
return {'disk_total': 10168,
'disk_used': 0,
'disk_avail': 10168}
def get_hostname(self):
return 'fake-powervm'
def rename_lpar(self, old, new):
pass
def set_lpar_mac_base_value(self, instance_name, mac):
pass
def get_logical_vol_size(self, diskname):
pass
def macs_for_instance(self, instance):
return set(['FA:98:64:2B:29:39'])
def run_vios_command(self, cmd):
pass
class FakeBlockAdapter(powervm_blockdev.PowerVMLocalVolumeAdapter):
def __init__(self):
self.connection_data = common.Connection(host='fake_compute_1',
username='fake_user',
password='fake_pass')
pass
def _create_logical_volume(self, size):
return 'lvfake01'
def _remove_logical_volume(self, lv_name):
pass
def _copy_file_to_device(self, sourcePath, device, decrompress=True):
pass
def _copy_image_file(self, sourcePath, remotePath, decompress=False):
finalPath = '/tmp/rhel62.raw.7e358754160433febd6f3318b7c9e335'
size = 4294967296
return finalPath, size
def _copy_device_to_file(self, device_name, file_path):
pass
def _copy_image_file_from_host(self, remote_source_path, local_dest_dir,
compress=False):
snapshot_file = '/tmp/rhel62.raw.7e358754160433febd6f3318b7c9e335'
snap_ref = open(snapshot_file, 'w+')
snap_ref.close()
return snapshot_file
def fake_get_powervm_operator():
return FakeIVMOperator(common.Connection('fake_host', 'fake_user',
'fake_password'))
def create_instance(testcase):
fake.stub_out_image_service(testcase.stubs)
ctxt = context.get_admin_context()
instance_type = db.flavor_get(ctxt, 1)
sys_meta = flavors.save_flavor_info({}, instance_type)
return db.instance_create(ctxt,
{'user_id': 'fake',
'project_id': 'fake',
'instance_type_id': 1,
'memory_mb': 1024,
'vcpus': 2,
'image_ref': '155d900f-4e14-4e4c-a73d-069cbf4541e6',
'system_metadata': sys_meta})
class PowerVMDriverTestCase(test.TestCase):
"""Unit tests for PowerVM connection calls."""
fake_network_info = 'fake_network_info'
fake_create_lpar_instance_called = False
def fake_create_lpar_instance(self, instance, network_info,
host_stats=None):
"""Stub for the _create_lpar_instance method.
This stub assumes that 'instance' is the one created in the test case
setUp method and 'network_info' is equal to self.fake_network_info.
@return: fake LPAR based on instance parameter where the name of the
LPAR is the uuid of the instance
"""
self.fake_create_lpar_instance_called = True
self.assertEquals(self.instance, instance)
self.assertEquals(self.fake_network_info, network_info)
return self.powervm_connection._powervm._operator.get_lpar(
instance['uuid'])
def setUp(self):
super(PowerVMDriverTestCase, self).setUp()
self.stubs.Set(powervm_operator, 'get_powervm_operator',
fake_get_powervm_operator)
self.stubs.Set(powervm_operator, 'get_powervm_disk_adapter',
lambda: FakeBlockAdapter())
self.powervm_connection = powervm_driver.PowerVMDriver(None)
self.instance = create_instance(self)
def test_list_instances(self):
instances = self.powervm_connection.list_instances()
self.assertTrue('instance-00000001' in instances)
self.assertTrue('instance-00000002' in instances)
def test_instance_exists(self):
name = self.instance['name']
self.assertTrue(self.powervm_connection.instance_exists(name))
def test_spawn(self):
def fake_image_fetch(context, image_id, file_path,
user_id, project_id):
pass
self.flags(powervm_img_local_path='/images/')
self.stubs.Set(images, 'fetch', fake_image_fetch)
image_meta = {}
image_meta['id'] = '666'
fake_net_info = network_model.NetworkInfo([
fake_network_cache_model.new_vif()])
self.powervm_connection.spawn(context.get_admin_context(),
self.instance, image_meta, [], 's3cr3t',
fake_net_info)
state = self.powervm_connection.get_info(self.instance)['state']
self.assertEqual(state, power_state.RUNNING)
def test_spawn_create_lpar_fail(self):
self.flags(powervm_img_local_path='/images/')
self.stubs.Set(images, 'fetch', lambda *x, **y: None)
self.stubs.Set(
self.powervm_connection._powervm,
'get_host_stats',
lambda *x, **y: raise_(
(processutils.ProcessExecutionError('instance_name'))))
fake_net_info = network_model.NetworkInfo([
fake_network_cache_model.new_vif()])
self.assertRaises(exception.PowerVMLPARCreationFailed,
self.powervm_connection.spawn,
context.get_admin_context(),
self.instance,
{'id': 'ANY_ID'}, [], 's3cr3t', fake_net_info)
def test_spawn_cleanup_on_fail(self):
self.flags(powervm_img_local_path='/images/')
self.stubs.Set(images, 'fetch', lambda *x, **y: None)
self.stubs.Set(
self.powervm_connection._powervm._disk_adapter,
'create_volume_from_image',
lambda *x, **y: raise_(exception.PowerVMImageCreationFailed()))
self.stubs.Set(
self.powervm_connection._powervm, '_cleanup',
lambda *x, **y: raise_(Exception('This should be logged.')))
fake_net_info = network_model.NetworkInfo([
fake_network_cache_model.new_vif()])
self.assertRaises(exception.PowerVMImageCreationFailed,
self.powervm_connection.spawn,
context.get_admin_context(),
self.instance,
{'id': 'ANY_ID'}, [], 's3cr3t', fake_net_info)
def test_snapshot(self):
def update_task_state(task_state, expected_state=None):
self._loc_task_state = task_state
self._loc_expected_task_state = expected_state
loc_context = context.get_admin_context()
arch = 'fake_arch'
properties = {'instance_id': self.instance['id'],
'user_id': str(loc_context.user_id),
'architecture': arch}
snapshot_name = 'fake_snap'
sent_meta = {'name': snapshot_name, 'is_public': False,
'status': 'creating', 'properties': properties}
image_service = fake.FakeImageService()
recv_meta = image_service.create(loc_context, sent_meta)
self.powervm_connection.snapshot(loc_context,
self.instance, recv_meta['id'],
update_task_state)
self.assertTrue(self._loc_task_state == task_states.IMAGE_UPLOADING and
self._loc_expected_task_state == task_states.IMAGE_PENDING_UPLOAD)
snapshot = image_service.show(context, recv_meta['id'])
self.assertEquals(snapshot['properties']['image_state'], 'available')
self.assertEquals(snapshot['properties']['architecture'], arch)
self.assertEquals(snapshot['status'], 'active')
self.assertEquals(snapshot['name'], snapshot_name)
def _set_get_info_stub(self, state):
def fake_get_instance(instance_name):
return {'state': state,
'max_mem': 512,
'desired_mem': 256,
'max_procs': 2,
'uptime': 2000}
self.stubs.Set(self.powervm_connection._powervm, '_get_instance',
fake_get_instance)
def test_get_info_state_nostate(self):
self._set_get_info_stub('')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.NOSTATE)
def test_get_info_state_running(self):
self._set_get_info_stub('Running')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.RUNNING)
def test_get_info_state_starting(self):
self._set_get_info_stub('Starting')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.RUNNING)
def test_get_info_state_shutdown(self):
self._set_get_info_stub('Not Activated')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.SHUTDOWN)
def test_get_info_state_shutting_down(self):
self._set_get_info_stub('Shutting Down')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.SHUTDOWN)
def test_get_info_state_error(self):
self._set_get_info_stub('Error')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.CRASHED)
def test_get_info_state_not_available(self):
self._set_get_info_stub('Not Available')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.CRASHED)
def test_get_info_state_open_firmware(self):
self._set_get_info_stub('Open Firmware')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.CRASHED)
def test_get_info_state_unmapped(self):
self._set_get_info_stub('The Universe')
info_dict = self.powervm_connection.get_info(self.instance)
self.assertEqual(info_dict['state'], power_state.NOSTATE)
def test_destroy(self):
self.powervm_connection.destroy(self.instance, None)
self.stubs.Set(FakeIVMOperator, 'get_lpar', lambda x, y: None)
name = self.instance['name']
self.assertFalse(self.powervm_connection.instance_exists(name))
def test_get_info(self):
info = self.powervm_connection.get_info(self.instance)
self.assertEqual(info['state'], power_state.RUNNING)
self.assertEqual(info['max_mem'], 2048)
self.assertEqual(info['mem'], 1024)
self.assertEqual(info['num_cpu'], 2)
self.assertEqual(info['cpu_time'], 939395)
def test_remote_utility_1(self):
path_one = '/some/file/'
path_two = '/path/filename'
joined_path = common.aix_path_join(path_one, path_two)
expected_path = '/some/file/path/filename'
self.assertEqual(joined_path, expected_path)
def test_remote_utility_2(self):
path_one = '/some/file/'
path_two = 'path/filename'
joined_path = common.aix_path_join(path_one, path_two)
expected_path = '/some/file/path/filename'
self.assertEqual(joined_path, expected_path)
def test_remote_utility_3(self):
path_one = '/some/file'
path_two = '/path/filename'
joined_path = common.aix_path_join(path_one, path_two)
expected_path = '/some/file/path/filename'
self.assertEqual(joined_path, expected_path)
def test_remote_utility_4(self):
path_one = '/some/file'
path_two = 'path/filename'
joined_path = common.aix_path_join(path_one, path_two)
expected_path = '/some/file/path/filename'
self.assertEqual(joined_path, expected_path)
def _test_finish_revert_migration_after_crash(self, backup_made,
new_made,
power_on):
inst = {'name': 'foo'}
network_info = []
network_info.append({'address': 'fa:89:f0:8b:9b:39'})
self.mox.StubOutWithMock(self.powervm_connection, 'instance_exists')
self.mox.StubOutWithMock(self.powervm_connection._powervm, 'destroy')
self.mox.StubOutWithMock(self.powervm_connection._powervm._operator,
'rename_lpar')
self.mox.StubOutWithMock(self.powervm_connection._powervm, 'power_on')
self.mox.StubOutWithMock(self.powervm_connection._powervm._operator,
'set_lpar_mac_base_value')
self.powervm_connection.instance_exists('rsz_foo').AndReturn(
backup_made)
if backup_made:
self.powervm_connection._powervm._operator.set_lpar_mac_base_value(
'rsz_foo', 'fa:89:f0:8b:9b:39')
self.powervm_connection.instance_exists('foo').AndReturn(new_made)
if new_made:
self.powervm_connection._powervm.destroy('foo')
self.powervm_connection._powervm._operator.rename_lpar('rsz_foo',
'foo')
if power_on:
self.powervm_connection._powervm.power_on('foo')
self.mox.ReplayAll()
self.powervm_connection.finish_revert_migration(inst, network_info,
block_device_info=None,
power_on=power_on)
def test_finish_revert_migration_after_crash(self):
self._test_finish_revert_migration_after_crash(True, True, True)
def test_finish_revert_migration_after_crash_before_new(self):
self._test_finish_revert_migration_after_crash(True, False, True)
def test_finish_revert_migration_after_crash_before_backup(self):
# NOTE(mriedem): tests the power_on=False case also
self._test_finish_revert_migration_after_crash(False, False, False)
def test_migrate_volume_use_instance_name(self):
inst_name = 'instance-00000000'
lv_name = 'logical-vol-name'
src_host = 'compute_host_1'
dest = 'compute_host_1'
image_path = 'some/image/path'
fake_noop = lambda *args, **kwargs: None
self.stubs.Set(self.powervm_connection._powervm._disk_adapter,
'_copy_device_to_file', fake_noop)
self.stubs.Set(self.powervm_connection._powervm._disk_adapter,
'run_vios_command_as_root', fake_noop)
blockdev_op = self.powervm_connection._powervm._disk_adapter
file_path = blockdev_op.migrate_volume(lv_name, src_host, dest,
image_path, inst_name)
expected_path = 'some/image/path/instance-00000000_rsz.gz'
self.assertEqual(file_path, expected_path)
def test_migrate_volume_use_lv_name(self):
lv_name = 'logical-vol-name'
src_host = 'compute_host_1'
dest = 'compute_host_1'
image_path = 'some/image/path'
fake_noop = lambda *args, **kwargs: None
self.stubs.Set(self.powervm_connection._powervm._disk_adapter,
'_copy_device_to_file', fake_noop)
self.stubs.Set(self.powervm_connection._powervm._disk_adapter,
'run_vios_command_as_root', fake_noop)
blockdev_op = self.powervm_connection._powervm._disk_adapter
file_path = blockdev_op.migrate_volume(lv_name, src_host, dest,
image_path)
expected_path = 'some/image/path/logical-vol-name_rsz.gz'
self.assertEqual(file_path, expected_path)
def _test_deploy_from_migrated_file(self, power_on):
instance = self.instance
context = 'fake_context'
network_info = []
network_info.append({'address': 'fa:89:f0:8b:9b:39'})
dest = '10.8.46.20'
disk_info = {}
disk_info['root_disk_file'] = 'some/file/path.gz'
disk_info['old_lv_size'] = 30
self.flags(powervm_mgr=dest)
fake_op = self.powervm_connection._powervm
self.deploy_from_vios_file_called = False
self.power_on = power_on
exp_file_path = 'some/file/path.gz'
def fake_deploy_from_vios_file(lpar, file_path, size,
decompress, power_on):
exp_size = 40 * 1024 ** 3
exp_decompress = True
self.deploy_from_vios_file_called = True
self.assertEqual(exp_file_path, file_path)
self.assertEqual(exp_size, size)
self.assertEqual(exp_decompress, decompress)
self.assertEqual(self.power_on, power_on)
self.stubs.Set(fake_op, '_deploy_from_vios_file',
fake_deploy_from_vios_file)
# mock out the rm -f command call to vios
with mock.patch.object(self.powervm_connection._powervm._operator,
'run_vios_command_as_root',
return_value=[]) as run_vios_cmd:
self.powervm_connection.finish_migration(context, None,
instance, disk_info, network_info,
None, resize_instance=True,
block_device_info=None,
power_on=power_on)
run_vios_cmd.assert_called_once_with('rm -f %s' % exp_file_path)
self.assertEqual(self.deploy_from_vios_file_called, True)
def test_deploy_from_migrated_file_power_on(self):
self._test_deploy_from_migrated_file(True)
def test_deploy_from_migrated_file_power_off(self):
self._test_deploy_from_migrated_file(False)
def test_set_lpar_mac_base_value(self):
instance = self.instance
context = 'fake_context'
dest = '10.8.46.20' # Some fake dest IP
instance_type = 'fake_instance_type'
network_info = []
network_info.append({'address': 'fa:89:f0:8b:9b:39'})
block_device_info = None
self.flags(powervm_mgr=dest)
fake_noop = lambda *args, **kwargs: None
fake_op = self.powervm_connection._powervm._operator
self.stubs.Set(fake_op, 'get_vhost_by_instance_id', fake_noop)
self.stubs.Set(fake_op, 'get_disk_name_by_vhost', fake_noop)
self.stubs.Set(self.powervm_connection._powervm, 'power_off',
fake_noop)
self.stubs.Set(fake_op, 'get_logical_vol_size',
lambda *args, **kwargs: '20')
self.stubs.Set(self.powervm_connection, '_get_resize_name', fake_noop)
self.stubs.Set(fake_op, 'rename_lpar', fake_noop)
def fake_migrate_disk(*args, **kwargs):
disk_info = {}
disk_info['fake_dict'] = 'some/file/path.gz'
return disk_info
def fake_set_lpar_mac_base_value(inst_name, mac, *args, **kwargs):
# get expected mac address from FakeIVM set
fake_ivm = FakeIVMOperator(None)
exp_mac = fake_ivm.macs_for_instance(inst_name).pop()
self.assertEqual(exp_mac, mac)
self.stubs.Set(self.powervm_connection._powervm, 'migrate_disk',
fake_migrate_disk)
self.stubs.Set(fake_op, 'set_lpar_mac_base_value',
fake_set_lpar_mac_base_value)
disk_info = self.powervm_connection.migrate_disk_and_power_off(
context, instance,
dest, instance_type, network_info, block_device_info)
def test_migrate_build_scp_command(self):
lv_name = 'logical-vol-name'
src_host = 'compute_host_1'
dest = 'compute_host_2'
image_path = 'some/image/path'
fake_noop = lambda *args, **kwargs: None
@contextlib.contextmanager
def fake_vios_to_vios_auth(*args, **kwargs):
key_name = 'some_key'
yield key_name
self.stubs.Set(common, 'vios_to_vios_auth',
fake_vios_to_vios_auth)
self.stubs.Set(self.powervm_connection._powervm._disk_adapter,
'run_vios_command_as_root', fake_noop)
def fake_run_vios_command(*args, **kwargs):
cmd = args[0]
exp_cmd = ' '.join(['scp -o "StrictHostKeyChecking no" -i',
'some_key',
'some/image/path/logical-vol-name_rsz.gz',
'fake_user@compute_host_2:some/image/path'])
self.assertEqual(exp_cmd, cmd)
self.stubs.Set(self.powervm_connection._powervm._disk_adapter,
'run_vios_command',
fake_run_vios_command)
blockdev_op = self.powervm_connection._powervm._disk_adapter
file_path = blockdev_op.migrate_volume(lv_name, src_host, dest,
image_path)
def test_get_resize_name(self):
inst_name = 'instance-00000001'
expected_name = 'rsz_instance-00000001'
result = self.powervm_connection._get_resize_name(inst_name)
self.assertEqual(expected_name, result)
def test_get_long_resize_name(self):
inst_name = 'some_really_long_instance_name_00000001'
expected_name = 'rsz__really_long_instance_name_00000001'
result = self.powervm_connection._get_resize_name(inst_name)
self.assertEqual(expected_name, result)
def test_finish_migration_raises_exception(self):
# Tests that the finish_migration method will raise an exception
# if the 'root_disk_file' key is not found in the disk_info parameter.
self.stubs.Set(self.powervm_connection._powervm,
'_create_lpar_instance', self.fake_create_lpar_instance)
self.assertRaises(exception.PowerVMUnrecognizedRootDevice,
self.powervm_connection.finish_migration,
context.get_admin_context(), None,
self.instance, {'old_lv_size': '20'},
self.fake_network_info, None, True)
self.assertTrue(self.fake_create_lpar_instance_called)
def test_finish_migration_successful(self):
# Tests a successful migration (resize) flow and asserts various
# methods called along the way with expected argument values.
fake_file_path = 'some/file/path.py'
disk_info = {'root_disk_file': fake_file_path,
'old_lv_size': '10'}
fake_flavor = {'root_gb': 20}
fake_extract_flavor = lambda *args, **kwargs: fake_flavor
self.fake_deploy_from_migrated_file_called = False
def fake_deploy_from_migrated_file(lpar, file_path, size,
power_on=True):
self.fake_deploy_from_migrated_file_called = True
# assert the lpar is the one created for this test
self.assertEquals(self.instance['uuid'], lpar['name'])
self.assertEquals(fake_file_path, file_path)
# this tests that the 20GB fake_flavor was used
self.assertEqual(fake_flavor['root_gb'] * pow(1024, 3), size)
self.assertTrue(power_on)
self.stubs.Set(self.powervm_connection._powervm,
'_create_lpar_instance',
self.fake_create_lpar_instance)
self.stubs.Set(flavors, 'extract_flavor', fake_extract_flavor)
self.stubs.Set(self.powervm_connection._powervm,
'deploy_from_migrated_file',
fake_deploy_from_migrated_file)
self.powervm_connection.finish_migration(context.get_admin_context(),
None, self.instance,
disk_info,
self.fake_network_info,
None, True)
self.assertTrue(self.fake_create_lpar_instance_called)
self.assertTrue(self.fake_deploy_from_migrated_file_called)
def test_check_host_resources_insufficient_memory(self):
# Tests that the _check_host_resources method will raise an exception
# when the host has insufficient memory for the request.
host_stats = {'host_memory_free': 512,
'vcpus': 12,
'vcpus_used': 1}
self.assertRaises(exception.PowerVMInsufficientFreeMemory,
self.powervm_connection._powervm._check_host_resources,
self.instance, vcpus=2, mem=4096, host_stats=host_stats)
def test_check_host_resources_insufficient_vcpus(self):
# Tests that the _check_host_resources method will raise an exception
# when the host has insufficient CPU for the request.
host_stats = {'host_memory_free': 4096,
'vcpus': 2,
'vcpus_used': 1}
self.assertRaises(exception.PowerVMInsufficientCPU,
self.powervm_connection._powervm._check_host_resources,
self.instance, vcpus=12, mem=512, host_stats=host_stats)
def test_create_lpar_instance_raise_insufficient_memory(self):
# This test will raise an exception because we use the instance
# created for this test case which requires 1024 MB of memory
# but the host only has 512 free.
host_stats = {'host_memory_free': 512,
'vcpus': 12,
'vcpus_used': 1}
self.assertRaises(exception.PowerVMInsufficientFreeMemory,
self.powervm_connection._powervm._create_lpar_instance,
self.instance, self.fake_network_info, host_stats)
def test_create_lpar_instance_raise_insufficient_vcpus(self):
# This test will raise an exception because we use the instance
# created for this test case which requires 2 CPUs but the host only
# has 1 CPU free.
host_stats = {'host_memory_free': 4096,
'vcpus': 1,
'vcpus_used': 1}
self.assertRaises(exception.PowerVMInsufficientCPU,
self.powervm_connection._powervm._create_lpar_instance,
self.instance, self.fake_network_info, host_stats)
def test_confirm_migration_old_instance_destroyed(self):
# Tests that the source instance is destroyed when a migration
# is confirmed.
resize_name = 'rsz_instance'
self.fake_destroy_called = False
def fake_get_resize_name(instance_name):
self.assertEquals(self.instance['name'], instance_name)
return resize_name
def fake_destroy(instance_name, destroy_disks=True):
self.fake_destroy_called = True
self.assertEquals(resize_name, instance_name)
self.assertTrue(destroy_disks)
self.stubs.Set(self.powervm_connection, '_get_resize_name',
fake_get_resize_name)
self.stubs.Set(self.powervm_connection._powervm, 'destroy',
fake_destroy)
self.powervm_connection.confirm_migration(True, self.instance,
self.fake_network_info)
self.assertTrue(self.fake_destroy_called)
def test_get_host_stats(self):
host_stats = self.powervm_connection.get_host_stats(True)
self.assertIsNotNone(host_stats)
self.assertEquals(host_stats['vcpus'], 8.0)
self.assertEquals(round(host_stats['vcpus_used'], 1), 1.7)
self.assertEquals(host_stats['host_memory_total'], 65536)
self.assertEquals(host_stats['host_memory_free'], 46336)
self.assertEquals(host_stats['disk_total'], 10168)
self.assertEquals(host_stats['disk_used'], 0)
self.assertEquals(host_stats['disk_available'], 10168)
self.assertEquals(host_stats['disk_total'],
host_stats['disk_used'] +
host_stats['disk_available'])
self.assertEquals(host_stats['cpu_info'], ('ppc64', 'powervm', '3940'))
self.assertEquals(host_stats['hypervisor_type'], 'powervm')
self.assertEquals(host_stats['hypervisor_version'], '7.1')
self.assertEquals(host_stats['hypervisor_hostname'], "fake-powervm")
self.assertEquals(host_stats['supported_instances'][0][0], "ppc64")
self.assertEquals(host_stats['supported_instances'][0][1], "powervm")
self.assertEquals(host_stats['supported_instances'][0][2], "hvm")
def test_get_available_resource(self):
res = self.powervm_connection.get_available_resource(nodename='fake')
self.assertIsNotNone(res)
self.assertEquals(8.0, res.pop('vcpus'))
self.assertEquals(65536, res.pop('memory_mb'))
self.assertEquals((10168 / 1024), res.pop('local_gb'))
self.assertEquals(1.7, round(res.pop('vcpus_used'), 1))
self.assertEquals((65536 - 46336), res.pop('memory_mb_used'))
self.assertEquals(0, res.pop('local_gb_used'))
self.assertEquals('powervm', res.pop('hypervisor_type'))
self.assertEquals('7.1', res.pop('hypervisor_version'))
self.assertEquals('fake-powervm', res.pop('hypervisor_hostname'))
self.assertEquals('ppc64,powervm,3940', res.pop('cpu_info'))
self.assertEquals(10168, res.pop('disk_available_least'))
self.assertEquals('[["ppc64", "powervm", "hvm"]]',
res.pop('supported_instances'))
self.assertEquals(0, len(res), 'Did not test all keys.')
def test_get_host_uptime(self):
# Tests that the get_host_uptime method issues the proper sysstat
# command and parses the output correctly.
exp_cmd = "ioscli sysstat -short fake_user"
output = [("02:54PM up 24 days, 5:41, 1 user, "
"load average: 0.06, 0.03, 0.02")]
fake_op = self.powervm_connection._powervm
self.mox.StubOutWithMock(fake_op._operator, 'run_vios_command')
fake_op._operator.run_vios_command(exp_cmd).AndReturn(output)
self.mox.ReplayAll()
# the host parameter isn't used so we just pass None
uptime = self.powervm_connection.get_host_uptime(None)
self.assertEquals(output[0], uptime)
def test_add_to_aggregate(self):
# Simple test to make sure the unimplemented method passes.
self.powervm_connection.add_to_aggregate(context.get_admin_context(),
aggregate={'name': 'foo'},
host='fake')
def test_remove_from_aggregate(self):
# Simple test to make sure the unimplemented method passes.
self.powervm_connection.remove_from_aggregate(
context.get_admin_context(), aggregate={'name': 'foo'},
host='fake')
def test_undo_aggregate_operation(self):
# Simple test to make sure the unimplemented method passes.
def fake_operation(*args, **kwargs):
pass
self.powervm_connection.undo_aggregate_operation(
context.get_admin_context(), op=fake_operation,
aggregate={'name': 'foo'}, host='fake')
def test_plug_vifs(self):
# Check to make sure the method passes (does nothing) since
# it simply passes in the powervm driver but it raises a
# NotImplementedError in the base driver class.
self.powervm_connection.plug_vifs(self.instance, None)
def test_manage_image_cache(self):
# Check to make sure the method passes (does nothing) since
# it's not implemented in the powervm driver and it passes
# in the driver base class.
self.powervm_connection.manage_image_cache(context.get_admin_context(),
True)
def test_init_host(self):
# Check to make sure the method passes (does nothing) since
# it simply passes in the powervm driver but it raises a
# NotImplementedError in the base driver class.
self.powervm_connection.init_host(host='fake')
def test_pause(self):
# Check to make sure the method raises NotImplementedError.
self.assertRaises(NotImplementedError, self.powervm_connection.pause,
instance=None)
def test_unpause(self):
# Check to make sure the method raises NotImplementedError.
self.assertRaises(NotImplementedError, self.powervm_connection.unpause,
instance=None)
def test_suspend(self):
# Check to make sure the method raises NotImplementedError.
self.assertRaises(NotImplementedError, self.powervm_connection.suspend,
instance=None)
def test_resume(self):
# Check to make sure the method raises NotImplementedError.
self.assertRaises(NotImplementedError, self.powervm_connection.resume,
context.get_admin_context(), instance=None,
network_info=None)
def test_host_power_action(self):
# Check to make sure the method raises NotImplementedError.
self.assertRaises(NotImplementedError,
self.powervm_connection.host_power_action,
host='fake', action='die!')
def test_soft_reboot(self):
# Tests that soft reboot is a no-op (mock out the power_off/power_on
# methods to ensure they aren't called)
self.mox.StubOutWithMock(self.powervm_connection._powervm, 'power_off')
self.mox.StubOutWithMock(self.powervm_connection._powervm, 'power_on')
self.mox.ReplayAll()
self.powervm_connection.reboot(context.get_admin_context(),
self.instance, network_info=None,
reboot_type='SOFT')
def test_hard_reboot(self):
# Tests that hard reboot is performed by stopping the lpar and then
# starting it.
self.mox.StubOutWithMock(self.powervm_connection._powervm, 'power_off')
self.powervm_connection._powervm.power_off(self.instance['name'])
self.mox.StubOutWithMock(self.powervm_connection._powervm, 'power_on')
self.powervm_connection._powervm.power_on(self.instance['name'])
self.mox.ReplayAll()
self.powervm_connection.reboot(context.get_admin_context(),
self.instance, network_info=None,
reboot_type='HARD')
class PowerVMDriverLparTestCase(test.TestCase):
"""Unit tests for PowerVM connection calls."""
def setUp(self):
super(PowerVMDriverLparTestCase, self).setUp()
self.stubs.Set(powervm_operator.PowerVMOperator, '_update_host_stats',
lambda self: None)
self.powervm_connection = powervm_driver.PowerVMDriver(None)
def test_set_lpar_mac_base_value_command(self):
inst_name = 'some_instance'
mac = 'FA:98:64:2B:29:39'
exp_mac_str = mac[:-2].replace(':', '')
exp_cmd = ('chsyscfg -r lpar -i "name=%(inst_name)s, '
'virtual_eth_mac_base_value=%(exp_mac_str)s"'
% {'inst_name': inst_name, 'exp_mac_str': exp_mac_str})
fake_op = self.powervm_connection._powervm
self.mox.StubOutWithMock(fake_op._operator, 'run_vios_command')
fake_op._operator.run_vios_command(exp_cmd)
self.mox.ReplayAll()
fake_op._operator.set_lpar_mac_base_value(inst_name, mac)
class PowerVMDriverCommonTestCase(test.TestCase):
"""Unit tests for the nova.virt.powervm.common module."""
def setUp(self):
super(PowerVMDriverCommonTestCase, self).setUp()
# our fake connection information never changes since we can't
# actually connect to anything for these tests
self.connection = common.Connection('fake_host', 'user', 'password')
def test_check_connection_ssh_is_none(self):
"""
Passes a null ssh object to the check_connection method.
The method should create a new ssh connection using the
Connection object and return it.
"""
self.stubs.Set(common, 'ssh_connect', fake_ssh_connect)
ssh = common.check_connection(None, self.connection)
self.assertIsNotNone(ssh)
def test_check_connection_transport_is_dead(self):
"""
Passes an ssh object to the check_connection method which
does not have a transport set.
The method should create a new ssh connection using the
Connection object and return it.
"""
self.stubs.Set(common, 'ssh_connect', fake_ssh_connect)
ssh1 = fake_ssh_connect(self.connection)
ssh2 = common.check_connection(ssh1, self.connection)
self.assertIsNotNone(ssh2)
self.assertNotEqual(ssh1, ssh2)
def test_check_connection_raise_ssh_exception(self):
"""
Passes an ssh object to the check_connection method which
does not have a transport set.
The method should raise an SSHException.
"""
self.stubs.Set(common, 'ssh_connect',
lambda *x, **y: raise_(paramiko.SSHException(
'Error connecting to host.')))
ssh = fake_ssh_connect(self.connection)
self.assertRaises(paramiko.SSHException,
common.check_connection,
ssh, self.connection)
def fake_copy_image_file(source_path, remote_path):
return '/tmp/fake_file', 1
class PowerVMLocalVolumeAdapterTestCase(test.TestCase):
"""
Unit tests for nova.virt.powervm.blockdev.PowerVMLocalVolumeAdapter.
"""
def setUp(self):
super(PowerVMLocalVolumeAdapterTestCase, self).setUp()
self.context = context.get_admin_context()
self.connection = common.Connection(host='fake_compute_1',
username='fake_user',
password='fake_pass')
self.powervm_adapter = powervm_blockdev.PowerVMLocalVolumeAdapter(
self.connection)
self.instance = create_instance(self)
self.image_id = self.instance['image_ref']
def test_create_volume_from_image_fails_no_disk_name(self):
"""
Tests that delete_volume is not called after create_logical_volume
fails.
"""
def fake_create_logical_volume(size):
raise exception.PowerVMNoSpaceLeftOnVolumeGroup()
def fake_delete_volume(volume_info):
self.fail("Should not be called to do cleanup.")
self.stubs.Set(self.powervm_adapter, '_copy_image_file',
fake_copy_image_file)
self.stubs.Set(self.powervm_adapter, '_create_logical_volume',
fake_create_logical_volume)
self.stubs.Set(self.powervm_adapter, 'delete_volume',
fake_delete_volume)
self.assertRaises(exception.PowerVMNoSpaceLeftOnVolumeGroup,
self.powervm_adapter.create_volume_from_image,
self.context, self.instance, self.image_id)
def test_create_volume_from_image_fails_with_disk_name(self):
"""
Tests that delete_volume is called to cleanup the volume after
create_logical_volume was successful but copy_file_to_device fails.
"""
disk_name = 'lvm_disk_name'
def fake_create_logical_volume(size):
return disk_name
def fake_copy_file_to_device(source_path, device):
raise exception.PowerVMConnectionFailed()
self.delete_volume_called = False
def fake_delete_volume(volume_info):
self.assertEquals(disk_name, volume_info)
self.delete_volume_called = True
self.stubs.Set(self.powervm_adapter, '_copy_image_file',
fake_copy_image_file)
self.stubs.Set(self.powervm_adapter, '_create_logical_volume',
fake_create_logical_volume)
self.stubs.Set(self.powervm_adapter, '_copy_file_to_device',
fake_copy_file_to_device)
self.stubs.Set(self.powervm_adapter, 'delete_volume',
fake_delete_volume)
self.assertRaises(exception.PowerVMConnectionFailed,
self.powervm_adapter.create_volume_from_image,
self.context, self.instance, self.image_id)
self.assertTrue(self.delete_volume_called)
def test_copy_image_file_ftp_failed(self):
file_path = os.tempnam('/tmp', 'image')
remote_path = '/mnt/openstack/images'
exp_remote_path = os.path.join(remote_path,
os.path.basename(file_path))
exp_cmd = ' '.join(['/usr/bin/rm -f', exp_remote_path])
fake_noop = lambda *args, **kwargs: None
fake_op = self.powervm_adapter
self.stubs.Set(fake_op, 'run_vios_command', fake_noop)
self.stubs.Set(fake_op, '_checksum_local_file', fake_noop)
self.mox.StubOutWithMock(common, 'ftp_put_command')
self.mox.StubOutWithMock(self.powervm_adapter,
'run_vios_command_as_root')
msg_args = {'ftp_cmd': 'PUT',
'source_path': file_path,
'dest_path': remote_path}
exp_exception = exception.PowerVMFTPTransferFailed(**msg_args)
common.ftp_put_command(self.connection, file_path,
remote_path).AndRaise(exp_exception)
self.powervm_adapter.run_vios_command_as_root(exp_cmd).AndReturn([])
self.mox.ReplayAll()
self.assertRaises(exception.PowerVMFTPTransferFailed,
self.powervm_adapter._copy_image_file,
file_path, remote_path)
def test_copy_image_file_wrong_checksum(self):
file_path = os.tempnam('/tmp', 'image')
remote_path = '/mnt/openstack/images'
exp_remote_path = os.path.join(remote_path,
os.path.basename(file_path))
exp_cmd = ' '.join(['/usr/bin/rm -f', exp_remote_path])
def fake_md5sum_remote_file(remote_path):
return '3202937169'
def fake_checksum_local_file(source_path):
return '3229026618'
fake_noop = lambda *args, **kwargs: None
fake_op = self.powervm_adapter
self.stubs.Set(fake_op, 'run_vios_command', fake_noop)
self.stubs.Set(fake_op, '_md5sum_remote_file',
fake_md5sum_remote_file)
self.stubs.Set(fake_op, '_checksum_local_file',
fake_checksum_local_file)
self.stubs.Set(common, 'ftp_put_command', fake_noop)
self.mox.StubOutWithMock(self.powervm_adapter,
'run_vios_command_as_root')
self.powervm_adapter.run_vios_command_as_root(exp_cmd).AndReturn([])
self.mox.ReplayAll()
self.assertRaises(exception.PowerVMFileTransferFailed,
self.powervm_adapter._copy_image_file,
file_path, remote_path)
def test_checksum_local_file(self):
file_path = os.tempnam('/tmp', 'image')
img_file = file(file_path, 'w')
img_file.write('This is a test')
img_file.close()
exp_md5sum = 'ce114e4501d2f4e2dcea3e17b546f339'
self.assertEqual(self.powervm_adapter._checksum_local_file(file_path),
exp_md5sum)
os.remove(file_path)
def test_copy_image_file_from_host_with_wrong_checksum(self):
local_path = 'some/tmp'
remote_path = os.tempnam('/mnt/openstack/images', 'image')
def fake_md5sum_remote_file(remote_path):
return '3202937169'
def fake_checksum_local_file(source_path):
return '3229026618'
fake_noop = lambda *args, **kwargs: None
fake_op = self.powervm_adapter
self.stubs.Set(fake_op, 'run_vios_command_as_root', fake_noop)
self.stubs.Set(fake_op, '_md5sum_remote_file',
fake_md5sum_remote_file)
self.stubs.Set(fake_op, '_checksum_local_file',
fake_checksum_local_file)
self.stubs.Set(common, 'ftp_get_command', fake_noop)
self.assertRaises(exception.PowerVMFileTransferFailed,
self.powervm_adapter._copy_image_file_from_host,
remote_path, local_path)
class IVMOperatorTestCase(test.TestCase):
"""Tests the IVMOperator class."""
def setUp(self):
super(IVMOperatorTestCase, self).setUp()
ivm_connection = common.Connection('fake_host', 'fake_user',
'fake_password')
self.ivm_operator = powervm_operator.IVMOperator(ivm_connection)
def test_start_lpar(self):
instance_name = 'fake'
self.mox.StubOutWithMock(self.ivm_operator, 'run_vios_command')
self.ivm_operator.run_vios_command('chsysstate -r lpar -o on -n %s' %
instance_name)
self.mox.StubOutWithMock(self.ivm_operator, 'get_lpar')
lpar1 = fake_lpar(instance_name)
self.ivm_operator.get_lpar(instance_name).AndReturn(lpar1)
self.mox.ReplayAll()
self.ivm_operator.start_lpar(instance_name)
def test_start_lpar_timeout(self):
instance_name = 'fake'
# mock the remote command call
self.mox.StubOutWithMock(self.ivm_operator, 'run_vios_command')
self.ivm_operator.run_vios_command('chsysstate -r lpar -o on -n %s' %
instance_name)
self.mox.StubOutWithMock(self.ivm_operator, 'get_lpar')
# the lpar is stopped and the timeout is less than the looping call
# interval so we timeout
lpar1 = fake_lpar(instance_name, state=constants.POWERVM_SHUTDOWN)
self.ivm_operator.get_lpar(instance_name).AndReturn(lpar1)
self.mox.ReplayAll()
self.assertRaises(exception.PowerVMLPAROperationTimeout,
self.ivm_operator.start_lpar,
instance_name=instance_name, timeout=0.5)
def test_stop_lpar(self):
instance_name = 'fake'
# mock the remote command call
self.mox.StubOutWithMock(self.ivm_operator, 'run_vios_command')
self.ivm_operator.run_vios_command('chsysstate -r lpar -o shutdown '
'--immed -n %s' % instance_name)
self.mox.StubOutWithMock(self.ivm_operator, 'get_lpar')
# the first time we check, the lpar is still running
lpar1 = fake_lpar(instance_name)
self.ivm_operator.get_lpar(instance_name).AndReturn(lpar1)
# the second time we check, the lpar is stopped
lpar2 = fake_lpar(instance_name, constants.POWERVM_SHUTDOWN)
self.ivm_operator.get_lpar(instance_name).AndReturn(lpar2)
self.mox.ReplayAll()
self.ivm_operator.stop_lpar(instance_name)
def test_stop_lpar_timeout(self):
instance_name = 'fake'
# mock the remote command call
self.mox.StubOutWithMock(self.ivm_operator, 'run_vios_command')
self.ivm_operator.run_vios_command('chsysstate -r lpar -o shutdown '
'--immed -n %s' % instance_name)
self.mox.StubOutWithMock(self.ivm_operator, 'get_lpar')
# the lpar is running and the timeout is less than the looping call
# interval so we timeout
lpar1 = fake_lpar(instance_name)
self.ivm_operator.get_lpar(instance_name).AndReturn(lpar1)
self.mox.ReplayAll()
self.assertRaises(exception.PowerVMLPAROperationTimeout,
self.ivm_operator.stop_lpar,
instance_name=instance_name, timeout=0.5)
def test_poll_for_lpar_status_no_state(self):
self.assertRaises(n_exc.InvalidParameterValue,
self.ivm_operator._poll_for_lpar_status,
'fake', constants.POWERVM_NOSTATE, 'test')
def test_poll_for_lpar_status_bad_state(self):
self.assertRaises(n_exc.InvalidParameterValue,
self.ivm_operator._poll_for_lpar_status,
'fake', 'bad-lpar-state-value', 'test')
def test_get_hostname_returns_cached(self):
self.mox.StubOutWithMock(self.ivm_operator, 'run_vios_command')
self.ivm_operator.run_vios_command(self.ivm_operator.command.hostname()
).AndReturn(('foo', None))
self.ivm_operator.run_vios_command(self.ivm_operator.command.hostname()
).AndReturn(('bar', None))
self.mox.ReplayAll()
self.assertEqual('foo', self.ivm_operator.get_hostname())
self.assertEqual('foo', self.ivm_operator.get_hostname())