def _send_instance_update_notification(context, instance, old_vm_state=None,
old_task_state=None, new_vm_state=None, new_task_state=None,
service="compute", host=None, old_display_name=None):
"""Send 'compute.instance.update' notification to inform observers
about instance state changes.
"""
payload = info_from_instance(context, instance, None, None)
# determine how we'll report states
payload.update(
_compute_states_payload(
instance, old_vm_state, old_task_state,
new_vm_state, new_task_state))
# add audit fields:
(audit_start, audit_end) = audit_period_bounds(current_period=True)
payload["audit_period_beginning"] = audit_start
payload["audit_period_ending"] = audit_end
# add bw usage info:
bw = bandwidth_usage(instance, audit_start)
payload["bandwidth"] = bw
# add old display name if it is changed
if old_display_name:
payload["old_display_name"] = old_display_name
rpc.get_notifier(service, host).info(context,
'compute.instance.update', payload)
def test_set_vm_state_and_notify(self):
expected_uuid = 'fake-uuid'
request_spec = dict(instance_properties=dict(uuid='other-uuid'))
updates = dict(vm_state='fake-vm-state')
service = 'fake-service'
method = 'fake-method'
exc_info = 'exc_info'
self.mox.StubOutWithMock(compute_utils,
'add_instance_fault_from_exc')
self.mox.StubOutWithMock(notifications, 'send_update')
self.mox.StubOutWithMock(db, 'instance_update_and_get_original')
self.mox.StubOutWithMock(rpc, 'get_notifier')
notifier = self.mox.CreateMockAnything()
rpc.get_notifier(service).AndReturn(notifier)
old_ref = 'old_ref'
new_ref = 'new_ref'
inst_obj = 'inst_obj'
db.instance_update_and_get_original(
self.context, expected_uuid, updates,
columns_to_join=['system_metadata']).AndReturn((old_ref, new_ref))
notifications.send_update(self.context, old_ref, inst_obj,
service=service)
compute_utils.add_instance_fault_from_exc(
self.context,
inst_obj, exc_info, mox.IsA(tuple))
payload = dict(request_spec=request_spec,
instance_properties=request_spec.get(
'instance_properties', {}),
instance_id=expected_uuid,
state='fake-vm-state',
method=method,
reason=exc_info)
event_type = '%s.%s' % (service, method)
notifier.error(self.context, event_type, payload)
self.mox.ReplayAll()
with mock.patch.object(objects.Instance, '_from_db_object',
return_value=inst_obj):
scheduler_utils.set_vm_state_and_notify(self.context,
expected_uuid,
service,
method,
updates,
exc_info,
request_spec,
db)
def send_api_fault(url, status, exception):
"""Send an api.fault notification."""
if not CONF.notify_api_faults:
return
payload = {'url': url, 'exception': six.text_type(exception),
'status': status}
rpc.get_notifier('api').error(common_context.get_current() or
patron.context.get_admin_context(),
'api.fault',
payload)
def test_set_vm_state_and_notify(self):
expected_uuid = 'fake-uuid'
request_spec = dict(instance_properties=dict(uuid='other-uuid'))
updates = dict(vm_state='fake-vm-state')
service = 'fake-service'
method = 'fake-method'
exc_info = 'exc_info'
self.mox.StubOutWithMock(compute_utils, 'add_instance_fault_from_exc')
self.mox.StubOutWithMock(notifications, 'send_update')
self.mox.StubOutWithMock(db, 'instance_update_and_get_original')
self.mox.StubOutWithMock(rpc, 'get_notifier')
notifier = self.mox.CreateMockAnything()
rpc.get_notifier(service).AndReturn(notifier)
old_ref = 'old_ref'
new_ref = 'new_ref'
inst_obj = 'inst_obj'
db.instance_update_and_get_original(
self.context,
expected_uuid,
updates,
columns_to_join=['system_metadata']).AndReturn((old_ref, new_ref))
notifications.send_update(self.context,
old_ref,
inst_obj,
service=service)
compute_utils.add_instance_fault_from_exc(self.context, inst_obj,
exc_info, mox.IsA(tuple))
payload = dict(request_spec=request_spec,
instance_properties=request_spec.get(
'instance_properties', {}),
instance_id=expected_uuid,
state='fake-vm-state',
method=method,
reason=exc_info)
event_type = '%s.%s' % (service, method)
notifier.error(self.context, event_type, payload)
self.mox.ReplayAll()
with mock.patch.object(objects.Instance,
'_from_db_object',
return_value=inst_obj):
scheduler_utils.set_vm_state_and_notify(self.context,
expected_uuid, service,
method, updates, exc_info,
request_spec, db)
def test_notify_usage_exists_instance_not_found(self):
# Ensure 'exists' notification generates appropriate usage data.
instance_id = self._create_instance()
instance = objects.Instance.get_by_id(self.context, instance_id,
expected_attrs=['metadata', 'system_metadata', 'info_cache'])
self.compute.terminate_instance(self.context, instance, [], [])
compute_utils.notify_usage_exists(
rpc.get_notifier('compute'), self.context, instance)
msg = fake_notifier.NOTIFICATIONS[-1]
self.assertEqual(msg.priority, 'INFO')
self.assertEqual(msg.event_type, 'compute.instance.exists')
payload = msg.payload
self.assertEqual(payload['tenant_id'], self.project_id)
self.assertEqual(payload['user_id'], self.user_id)
self.assertEqual(payload['instance_id'], instance['uuid'])
self.assertEqual(payload['instance_type'], 'm1.tiny')
type_id = flavors.get_flavor_by_name('m1.tiny')['id']
self.assertEqual(str(payload['instance_type_id']), str(type_id))
flavor_id = flavors.get_flavor_by_name('m1.tiny')['flavorid']
self.assertEqual(str(payload['instance_flavor_id']), str(flavor_id))
for attr in ('display_name', 'created_at', 'launched_at',
'state', 'state_description',
'bandwidth', 'audit_period_beginning',
'audit_period_ending', 'image_meta'):
self.assertIn(attr, payload, "Key %s not in payload" % attr)
self.assertEqual(payload['image_meta'], {})
image_ref_url = "%s/images/1" % glance.generate_glance_url()
self.assertEqual(payload['image_ref_url'], image_ref_url)
def __init__(self, host=None, db_driver=None, service_name='undefined'):
if not host:
host = CONF.host
self.host = host
self.backdoor_port = None
self.service_name = service_name
self.notifier = rpc.get_notifier(self.service_name, self.host)
self.additional_endpoints = []
super(Manager, self).__init__(db_driver)
def notify_about_server_group_update(context, event_suffix, sg_payload):
"""Send a notification about server group update.
:param event_suffix: Event type like "create.start" or "create.end"
:param sg_payload: payload for server group update
"""
notifier = rpc.get_notifier(service='servergroup')
notifier.info(context, 'servergroup.%s' % event_suffix, sg_payload)
def notify_about_server_group_update(context, event_suffix, sg_payload):
"""Send a notification about server group update.
:param event_suffix: Event type like "create.start" or "create.end"
:param sg_payload: payload for server group update
"""
notifier = rpc.get_notifier(service='servergroup')
notifier.info(context, 'servergroup.%s' % event_suffix, sg_payload)
def get_connection(self):
"""Returns a connection to the hypervisor
This method should be used to create and return a well
configured connection to the hypervisor.
:returns: a libvirt.virConnect object
"""
try:
conn = self._get_connection()
except libvirt.libvirtError as ex:
LOG.exception(_LE("Connection to libvirt failed: %s"), ex)
payload = dict(ip=CONF.my_ip,
method='_connect',
reason=ex)
rpc.get_notifier('compute').error(patron_context.get_admin_context(),
'compute.libvirt.error',
payload)
raise exception.HypervisorUnavailable(host=CONF.host)
return conn
def __init__(self):
super(LocalManager, self).__init__()
# NOTE(vish): setting the host to none ensures that the actual
# l3driver commands for l3 are done via rpc.
self.host = None
self.servicegroup_api = servicegroup.API()
self.network_rpcapi = network_rpcapi.NetworkAPI()
self.floating_dns_manager = importutils.import_object(
CONF.floating_ip_dns_manager)
self.instance_dns_manager = importutils.import_object(
CONF.instance_dns_manager)
self.notifier = rpc.get_notifier('network', CONF.host)
def notify_about_host_update(context, event_suffix, host_payload):
"""Send a notification about host update.
:param event_suffix: Event type like "create.start" or "create.end"
:param host_payload: payload for host update. It is a dict and there
should be at least the 'host_name' key in this
dict.
"""
host_identifier = host_payload.get('host_name')
if not host_identifier:
LOG.warning(_LW("No host name specified for the notification of "
"HostAPI.%s and it will be ignored"), event_suffix)
return
notifier = rpc.get_notifier(service='api', host=host_identifier)
notifier.info(context, 'HostAPI.%s' % event_suffix, host_payload)
def notify_about_aggregate_update(context, event_suffix, aggregate_payload):
"""Send a notification about aggregate update.
:param event_suffix: Event type like "create.start" or "create.end"
:param aggregate_payload: payload for aggregate update
"""
aggregate_identifier = aggregate_payload.get('aggregate_id', None)
if not aggregate_identifier:
aggregate_identifier = aggregate_payload.get('name', None)
if not aggregate_identifier:
LOG.debug("No aggregate id or name specified for this "
"notification and it will be ignored")
return
notifier = rpc.get_notifier(service='aggregate', host=aggregate_identifier)
notifier.info(context, 'aggregate.%s' % event_suffix, aggregate_payload)
def notify_about_host_update(context, event_suffix, host_payload):
"""Send a notification about host update.
:param event_suffix: Event type like "create.start" or "create.end"
:param host_payload: payload for host update. It is a dict and there
should be at least the 'host_name' key in this
dict.
"""
host_identifier = host_payload.get('host_name')
if not host_identifier:
LOG.warning(
_LW("No host name specified for the notification of "
"HostAPI.%s and it will be ignored"), event_suffix)
return
notifier = rpc.get_notifier(service='api', host=host_identifier)
notifier.info(context, 'HostAPI.%s' % event_suffix, host_payload)
def notify_about_aggregate_update(context, event_suffix, aggregate_payload):
"""Send a notification about aggregate update.
:param event_suffix: Event type like "create.start" or "create.end"
:param aggregate_payload: payload for aggregate update
"""
aggregate_identifier = aggregate_payload.get('aggregate_id', None)
if not aggregate_identifier:
aggregate_identifier = aggregate_payload.get('name', None)
if not aggregate_identifier:
LOG.debug("No aggregate id or name specified for this "
"notification and it will be ignored")
return
notifier = rpc.get_notifier(service='aggregate',
host=aggregate_identifier)
notifier.info(context, 'aggregate.%s' % event_suffix, aggregate_payload)
def set_vm_state_and_notify(context, instance_uuid, service, method, updates,
ex, request_spec, db):
"""changes VM state and notifies."""
LOG.warning(_LW("Failed to %(service)s_%(method)s: %(ex)s"), {
'service': service,
'method': method,
'ex': ex
})
vm_state = updates['vm_state']
properties = request_spec.get('instance_properties', {})
# NOTE(vish): We shouldn't get here unless we have a catastrophic
# failure, so just set the instance to its internal state
notifier = rpc.get_notifier(service)
state = vm_state.upper()
LOG.warning(_LW('Setting instance to %s state.'),
state,
instance_uuid=instance_uuid)
# update instance state and notify on the transition
# NOTE(hanlind): the send_update() call below is going to want to
# know about the flavor, so we need to join the appropriate things
# here and objectify the results.
(old_ref, new_ref) = db.instance_update_and_get_original(
context, instance_uuid, updates, columns_to_join=['system_metadata'])
inst_obj = objects.Instance._from_db_object(
context,
objects.Instance(),
new_ref,
expected_attrs=['system_metadata'])
notifications.send_update(context, old_ref, inst_obj, service=service)
compute_utils.add_instance_fault_from_exc(context, inst_obj, ex,
sys.exc_info())
payload = dict(request_spec=request_spec,
instance_properties=properties,
instance_id=instance_uuid,
state=vm_state,
method=method,
reason=ex)
event_type = '%s.%s' % (service, method)
notifier.error(context, event_type, payload)
def _get_host_metrics(self, context, nodename):
"""Get the metrics from monitors and
notify information to message bus.
"""
metrics = []
metrics_info = {}
for monitor in self.monitors:
try:
metrics += monitor.get_metrics(nodename=nodename)
except Exception:
LOG.warning(_LW("Cannot get the metrics from %s."), monitor)
if metrics:
metrics_info['nodename'] = nodename
metrics_info['metrics'] = metrics
metrics_info['host'] = self.host
metrics_info['host_ip'] = CONF.my_ip
notifier = rpc.get_notifier(service='compute', host=nodename)
notifier.info(context, 'compute.metrics.update', metrics_info)
return metrics
def wrapped_func(*args, **kwarg):
body = {}
body['args'] = []
body['kwarg'] = {}
for arg in args:
body['args'].append(arg)
for key in kwarg:
body['kwarg'][key] = kwarg[key]
ctxt = common_context.get_context_from_function_and_args(
fn, args, kwarg)
notifier = rpc.get_notifier('api',
publisher_id=(CONF.default_publisher_id
or CONF.host))
method = notifier.getattr(CONF.default_notification_level.lower(),
'info')
method(ctxt, name, body)
return fn(*args, **kwarg)
def test_notify_about_instance_usage(self):
instance_id = self._create_instance()
instance = objects.Instance.get_by_id(self.context, instance_id,
expected_attrs=['metadata', 'system_metadata', 'info_cache'])
# Set some system metadata
sys_metadata = {'image_md_key1': 'val1',
'image_md_key2': 'val2',
'other_data': 'meow'}
instance.system_metadata.update(sys_metadata)
instance.save()
extra_usage_info = {'image_name': 'fake_name'}
compute_utils.notify_about_instance_usage(
rpc.get_notifier('compute'),
self.context, instance, 'create.start',
extra_usage_info=extra_usage_info)
self.assertEqual(len(fake_notifier.NOTIFICATIONS), 1)
msg = fake_notifier.NOTIFICATIONS[0]
self.assertEqual(msg.priority, 'INFO')
self.assertEqual(msg.event_type, 'compute.instance.create.start')
payload = msg.payload
self.assertEqual(payload['tenant_id'], self.project_id)
self.assertEqual(payload['user_id'], self.user_id)
self.assertEqual(payload['instance_id'], instance['uuid'])
self.assertEqual(payload['instance_type'], 'm1.tiny')
type_id = flavors.get_flavor_by_name('m1.tiny')['id']
self.assertEqual(str(payload['instance_type_id']), str(type_id))
flavor_id = flavors.get_flavor_by_name('m1.tiny')['flavorid']
self.assertEqual(str(payload['instance_flavor_id']), str(flavor_id))
for attr in ('display_name', 'created_at', 'launched_at',
'state', 'state_description', 'image_meta'):
self.assertIn(attr, payload, "Key %s not in payload" % attr)
self.assertEqual(payload['image_meta'],
{'md_key1': 'val1', 'md_key2': 'val2'})
self.assertEqual(payload['image_name'], 'fake_name')
image_ref_url = "%s/images/1" % glance.generate_glance_url()
self.assertEqual(payload['image_ref_url'], image_ref_url)
self.compute.terminate_instance(self.context, instance, [], [])
def __init__(self, *args, **kwargs):
super(FilterScheduler, self).__init__(*args, **kwargs)
self.options = scheduler_options.SchedulerOptions()
self.notifier = rpc.get_notifier('scheduler')
