本文整理汇总了Python中nova.compute.utils.get_image_metadata函数的典型用法代码示例。如果您正苦于以下问题：Python get_image_metadata函数的具体用法？Python get_image_metadata怎么用？Python get_image_metadata使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了get_image_metadata函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_find_destination_retry_with_invalid_livem_checks
def test_find_destination_retry_with_invalid_livem_checks(self):
self.flags(migrate_max_retries=1)
self.mox.StubOutWithMock(compute_utils, "get_image_metadata")
self.mox.StubOutWithMock(scheduler_utils, "build_request_spec")
self.mox.StubOutWithMock(self.task.scheduler_client, "select_destinations")
self.mox.StubOutWithMock(self.task, "_check_compatible_with_source_hypervisor")
self.mox.StubOutWithMock(self.task, "_call_livem_checks_on_host")
compute_utils.get_image_metadata(
self.context, self.task.image_api, self.instance_image, self.instance
).AndReturn("image")
scheduler_utils.build_request_spec(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndReturn({})
self.task.scheduler_client.select_destinations(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(
[{"host": "host1"}]
)
self.task._check_compatible_with_source_hypervisor("host1")
self.task._call_livem_checks_on_host("host1").AndRaise(exception.Invalid)
self.task.scheduler_client.select_destinations(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(
[{"host": "host2"}]
)
self.task._check_compatible_with_source_hypervisor("host2")
self.task._call_livem_checks_on_host("host2")
self.mox.ReplayAll()
self.assertEqual("host2", self.task._find_destination())示例2: test_get_image_meta_with_image_id_none
def test_get_image_meta_with_image_id_none(self, mock_flavor_get):
mock_flavor_get.return_value = objects.Flavor(extra_specs={})
self.image['properties'] = {'fake_property': 'fake_value'}
inst = self.instance_obj
with mock.patch.object(flavors,
"extract_flavor") as mock_extract_flavor:
with mock.patch.object(utils, "get_system_metadata_from_image"
) as mock_get_sys_metadata:
image_meta = compute_utils.get_image_metadata(
self.ctx, self.mock_image_api, None, inst)
self.assertEqual(0, self.mock_image_api.get.call_count)
self.assertEqual(0, mock_extract_flavor.call_count)
self.assertEqual(0, mock_get_sys_metadata.call_count)
self.assertNotIn('fake_property', image_meta['properties'])
# Checking mock_image_api_get is called with 0 image_id
# as 0 is a valid image ID
image_meta = compute_utils.get_image_metadata(self.ctx,
self.mock_image_api,
0, self.instance_obj)
self.assertEqual(1, self.mock_image_api.get.call_count)
self.assertIn('fake_property', image_meta['properties'])示例3: _test_find_destination_retry_hypervisor_raises
def _test_find_destination_retry_hypervisor_raises(self, error):
self.mox.StubOutWithMock(compute_utils, 'get_image_metadata')
self.mox.StubOutWithMock(scheduler_utils, 'build_request_spec')
self.mox.StubOutWithMock(self.task.scheduler_client,
'select_destinations')
self.mox.StubOutWithMock(self.task,
'_check_compatible_with_source_hypervisor')
self.mox.StubOutWithMock(self.task, '_call_livem_checks_on_host')
compute_utils.get_image_metadata(self.context,
self.task.image_api, self.instance_image,
self.instance).AndReturn("image")
scheduler_utils.build_request_spec(self.context, mox.IgnoreArg(),
mox.IgnoreArg()).AndReturn({})
self.task.scheduler_client.select_destinations(self.context,
mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(
[{'host': 'host1'}])
self.task._check_compatible_with_source_hypervisor("host1")\
.AndRaise(error)
self.task.scheduler_client.select_destinations(self.context,
mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(
[{'host': 'host2'}])
self.task._check_compatible_with_source_hypervisor("host2")
self.task._call_livem_checks_on_host("host2")
self.mox.ReplayAll()
self.assertEqual("host2", self.task._find_destination())示例4: test_find_destination_retry_with_invalid_livem_checks
def test_find_destination_retry_with_invalid_livem_checks(self):
self.flags(migrate_max_retries=1)
self.mox.StubOutWithMock(compute_utils, 'get_image_metadata')
self.mox.StubOutWithMock(scheduler_utils, 'build_request_spec')
self.mox.StubOutWithMock(self.task.scheduler_rpcapi,
'select_destinations')
self.mox.StubOutWithMock(self.task,
'_check_compatible_with_source_hypervisor')
self.mox.StubOutWithMock(self.task, '_call_livem_checks_on_host')
compute_utils.get_image_metadata(self.context,
self.task.image_service, self.instance_image,
self.instance).AndReturn("image")
scheduler_utils.build_request_spec(self.context, mox.IgnoreArg(),
mox.IgnoreArg()).AndReturn({})
self.task.scheduler_rpcapi.select_destinations(self.context,
mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(
[{'host': 'host1'}])
self.task._check_compatible_with_source_hypervisor("host1")
self.task._call_livem_checks_on_host("host1")\
.AndRaise(exception.Invalid)
self.task.scheduler_rpcapi.select_destinations(self.context,
mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(
[{'host': 'host2'}])
self.task._check_compatible_with_source_hypervisor("host2")
self.task._call_livem_checks_on_host("host2")
self.mox.ReplayAll()
self.assertEqual("host2", self.task._find_destination())示例5: test_find_destination_works
def test_find_destination_works(self):
self.mox.StubOutWithMock(compute_utils, 'get_image_metadata')
self.mox.StubOutWithMock(scheduler_utils, 'build_request_spec')
self.mox.StubOutWithMock(scheduler_utils, 'setup_instance_group')
self.mox.StubOutWithMock(self.task.scheduler_client,
'select_destinations')
self.mox.StubOutWithMock(self.task,
'_check_compatible_with_source_hypervisor')
self.mox.StubOutWithMock(self.task, '_call_livem_checks_on_host')
compute_utils.get_image_metadata(self.context,
self.task.image_api, self.instance_image,
self.instance).AndReturn("image")
scheduler_utils.build_request_spec(self.context, mox.IgnoreArg(),
mox.IgnoreArg()).AndReturn({})
scheduler_utils.setup_instance_group(
self.context, {}, {'ignore_hosts': [self.instance_host]})
self.task.scheduler_client.select_destinations(self.context,
mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(
[{'host': 'host1'}])
self.task._check_compatible_with_source_hypervisor("host1")
self.task._call_livem_checks_on_host("host1")
self.mox.ReplayAll()
self.assertEqual("host1", self.task._find_destination())示例6: test_find_destination_retry_exceeds_max
def test_find_destination_retry_exceeds_max(self):
self.flags(migrate_max_retries=0)
self.mox.StubOutWithMock(compute_utils, 'get_image_metadata')
self.mox.StubOutWithMock(scheduler_utils, 'build_request_spec')
self.mox.StubOutWithMock(scheduler_utils, 'setup_instance_group')
self.mox.StubOutWithMock(self.task.scheduler_client,
'select_destinations')
self.mox.StubOutWithMock(self.task,
'_check_compatible_with_source_hypervisor')
compute_utils.get_image_metadata(self.context,
self.task.image_api, self.instance_image,
self.instance).AndReturn("image")
scheduler_utils.build_request_spec(self.context, mox.IgnoreArg(),
mox.IgnoreArg()).AndReturn({})
scheduler_utils.setup_instance_group(
self.context, {}, {'ignore_hosts': [self.instance_host]})
self.task.scheduler_client.select_destinations(self.context,
mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(
[{'host': 'host1'}])
self.task._check_compatible_with_source_hypervisor("host1")\
.AndRaise(exception.DestinationHypervisorTooOld)
self.mox.ReplayAll()
self.assertRaises(exception.NoValidHost, self.task._find_destination)示例7: test_find_destination_when_runs_out_of_hosts
def test_find_destination_when_runs_out_of_hosts(self):
self.mox.StubOutWithMock(compute_utils, "get_image_metadata")
self.mox.StubOutWithMock(scheduler_utils, "build_request_spec")
self.mox.StubOutWithMock(self.task.scheduler_client, "select_destinations")
compute_utils.get_image_metadata(
self.context, self.task.image_api, self.instance_image, self.instance
).AndReturn("image")
scheduler_utils.build_request_spec(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndReturn({})
self.task.scheduler_client.select_destinations(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndRaise(
exception.NoValidHost(reason="")
)
self.mox.ReplayAll()
self.assertRaises(exception.NoValidHost, self.task._find_destination)示例8: test_get_image_meta
def test_get_image_meta(self, mock_get):
mock_get.return_value = objects.Flavor(extra_specs={})
image_meta = compute_utils.get_image_metadata(
self.ctx, self.mock_image_api, 'fake-image', self.instance_obj)
self.image['properties'] = 'DONTCARE'
self.assertThat(self.image, matchers.DictMatches(image_meta))示例9: test_find_destination_retry_exceeds_max
def test_find_destination_retry_exceeds_max(self):
self.flags(migrate_max_retries=0)
self.mox.StubOutWithMock(compute_utils, "get_image_metadata")
self.mox.StubOutWithMock(scheduler_utils, "build_request_spec")
self.mox.StubOutWithMock(self.task.scheduler_rpcapi, "select_hosts")
self.mox.StubOutWithMock(self.task, "_check_compatible_with_source_hypervisor")
compute_utils.get_image_metadata(
self.context, self.task.image_service, self.instance_image, self.instance
).AndReturn("image")
scheduler_utils.build_request_spec(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndReturn({})
self.task.scheduler_rpcapi.select_hosts(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(["host1"])
self.task._check_compatible_with_source_hypervisor("host1").AndRaise(exception.DestinationHypervisorTooOld)
self.mox.ReplayAll()
self.assertRaises(exception.NoValidHost, self.task._find_destination)示例10: _find_destination
def _find_destination(self):
#TODO(johngarbutt) this retry loop should be shared
attempted_hosts = [self.source]
image = None
if self.instance.image_ref:
image = compute_utils.get_image_metadata(self.context,
self.image_service,
self.instance.image_ref,
self.instance)
instance_type = flavors.extract_flavor(self.instance)
host = None
while host is None:
self._check_not_over_max_retries(attempted_hosts)
host = self._get_candidate_destination(image,
instance_type, attempted_hosts)
try:
self._check_compatible_with_source_hypervisor(host)
self._call_livem_checks_on_host(host)
except exception.Invalid as e:
LOG.debug(_("Skipping host: %(host)s because: %(e)s") %
{"host": host, "e": e})
attempted_hosts.append(host)
host = None
return host示例11: _find_destination
def _find_destination(self):
# TODO(johngarbutt) this retry loop should be shared
attempted_hosts = [self.source]
image = None
if self.instance.image_ref:
image = compute_utils.get_image_metadata(self.context,
self.image_api,
self.instance.image_ref,
self.instance)
request_spec = scheduler_utils.build_request_spec(self.context, image,
[self.instance])
host = None
while host is None:
self._check_not_over_max_retries(attempted_hosts)
filter_properties = {'ignore_hosts': attempted_hosts}
scheduler_utils.setup_instance_group(self.context, request_spec,
filter_properties)
host = self.scheduler_client.select_destinations(self.context,
request_spec, filter_properties)[0]['host']
try:
self._check_compatible_with_source_hypervisor(host)
self._call_livem_checks_on_host(host)
except exception.Invalid as e:
LOG.debug("Skipping host: %(host)s because: %(e)s",
{"host": host, "e": e})
attempted_hosts.append(host)
host = None
return host示例12: _cold_migrate
def _cold_migrate(self, context, instance, flavor, filter_properties,
reservations):
image_ref = instance.image_ref
image = compute_utils.get_image_metadata(
context, self.image_api, image_ref, instance)
request_spec = scheduler_utils.build_request_spec(
context, image, [instance], instance_type=flavor)
quotas = objects.Quotas.from_reservations(context,
reservations,
instance=instance)
scheduler_utils.setup_instance_group(context, request_spec,
filter_properties)
try:
scheduler_utils.populate_retry(filter_properties, instance['uuid'])
hosts = self.scheduler_client.select_destinations(
context, request_spec, filter_properties)
host_state = hosts[0]
except exception.NoValidHost as ex:
vm_state = instance['vm_state']
if not vm_state:
vm_state = vm_states.ACTIVE
updates = {'vm_state': vm_state, 'task_state': None}
self._set_vm_state_and_notify(context, 'migrate_server',
updates, ex, request_spec)
quotas.rollback()
# if the flavor IDs match, it's migrate; otherwise resize
if flavor['id'] == instance['instance_type_id']:
msg = _("No valid host found for cold migrate")
else:
msg = _("No valid host found for resize")
raise exception.NoValidHost(reason=msg)
try:
scheduler_utils.populate_filter_properties(filter_properties,
host_state)
# context is not serializable
filter_properties.pop('context', None)
# TODO(timello): originally, instance_type in request_spec
# on compute.api.resize does not have 'extra_specs', so we
# remove it for now to keep tests backward compatibility.
request_spec['instance_type'].pop('extra_specs', None)
(host, node) = (host_state['host'], host_state['nodename'])
self.compute_rpcapi.prep_resize(
context, image, instance,
flavor, host,
reservations, request_spec=request_spec,
filter_properties=filter_properties, node=node)
except Exception as ex:
with excutils.save_and_reraise_exception():
updates = {'vm_state': instance['vm_state'],
'task_state': None}
self._set_vm_state_and_notify(context, 'migrate_server',
updates, ex, request_spec)
quotas.rollback()示例13: test_find_destination_works
def test_find_destination_works(self):
self.mox.StubOutWithMock(compute_utils, "get_image_metadata")
self.mox.StubOutWithMock(scheduler_utils, "build_request_spec")
self.mox.StubOutWithMock(self.task.scheduler_rpcapi, "select_hosts")
self.mox.StubOutWithMock(self.task, "_check_compatible_with_source_hypervisor")
self.mox.StubOutWithMock(self.task, "_call_livem_checks_on_host")
compute_utils.get_image_metadata(
self.context, self.task.image_service, self.instance_image, self.instance
).AndReturn("image")
scheduler_utils.build_request_spec(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndReturn({})
self.task.scheduler_rpcapi.select_hosts(self.context, mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(["host1"])
self.task._check_compatible_with_source_hypervisor("host1")
self.task._call_livem_checks_on_host("host1")
self.mox.ReplayAll()
self.assertEqual("host1", self.task._find_destination())示例14: test_find_destination_when_runs_out_of_hosts
def test_find_destination_when_runs_out_of_hosts(self):
self.mox.StubOutWithMock(compute_utils, 'get_image_metadata')
self.mox.StubOutWithMock(flavors, 'extract_flavor')
self.mox.StubOutWithMock(self.task.scheduler_rpcapi, 'select_hosts')
self.mox.StubOutWithMock(self.task,
'_check_compatible_with_source_hypervisor')
self.mox.StubOutWithMock(self.task, '_call_livem_checks_on_host')
compute_utils.get_image_metadata(self.context,
self.task.image_service, self.instance_image,
self.instance).AndReturn("image")
flavors.extract_flavor(self.instance).AndReturn("inst_type")
self.task.scheduler_rpcapi.select_hosts(self.context, mox.IgnoreArg(),
mox.IgnoreArg()).AndRaise(exception.NoValidHost(reason=""))
self.mox.ReplayAll()
self.assertRaises(exception.NoValidHost, self.task._find_destination)示例15: test_get_image_meta_with_image_id_none
def test_get_image_meta_with_image_id_none(self):
self.image["properties"] = {"fake_property": "fake_value"}
with mock.patch.object(flavors, "extract_flavor") as mock_extract_flavor:
with mock.patch.object(utils, "get_system_metadata_from_image") as mock_get_sys_metadata:
image_meta = compute_utils.get_image_metadata(self.ctx, self.mock_image_api, None, self.instance_obj)
self.assertEqual(0, self.mock_image_api.get.call_count)
self.assertEqual(0, mock_extract_flavor.call_count)
self.assertEqual(0, mock_get_sys_metadata.call_count)
self.assertNotIn("fake_property", image_meta["properties"])
# Checking mock_image_api_get is called with 0 image_id
# as 0 is a valid image ID
image_meta = compute_utils.get_image_metadata(self.ctx, self.mock_image_api, 0, self.instance_obj)
self.assertEqual(1, self.mock_image_api.get.call_count)
self.assertIn("fake_property", image_meta["properties"])