def load_plugins(self):
self.plugins = []
for entrypoint in pkg_resources.iter_entry_points('%s.plugin' %
self._project_name):
try:
pluginclass = entrypoint.load()
plugin = pluginclass(self._service_name)
self.plugins.append(plugin)
except Exception as exc:
LOG.error(_("Failed to load plugin %(plug)s: %(exc)s") %
{'plug': entrypoint, 'exc': exc})
# Register individual notifiers.
for plugin in self.plugins:
for notifier in plugin.notifiers:
notifier_api.add_driver(notifier)
def load_plugins(self):
self.plugins = []
for entrypoint in pkg_resources.iter_entry_points('%s.plugin' %
self._project_name):
try:
pluginclass = entrypoint.load()
plugin = pluginclass(self._service_name)
self.plugins.append(plugin)
except Exception as exc:
LOG.error(
_("Failed to load plugin %(plug)s: %(exc)s") % {
'plug': entrypoint,
'exc': exc
})
# Register individual notifiers.
for plugin in self.plugins:
for notifier in plugin.notifiers:
notifier_api.add_driver(notifier)
class PluginManager(object):
"""Manages plugin entrypoints and loading.
For a service to implement this plugin interface for callback purposes:
- Make use of the openstack-common notifier system
- Instantiate this manager in each process (passing in
project and service name)
For an API service to extend itself using this plugin interface,
it needs to query the plugin_extension_factory provided by
the already-instantiated PluginManager.
"""
def __init__(self, project_name, service_name):
""" Construct Plugin Manager; load and initialize plugins.
project_name (e.g. 'nova' or 'glance') is used
to construct the entry point that identifies plugins.
The service_name (e.g. 'compute') is passed on to
each plugin as a raw string for it to do what it will.
"""
self._project_name = project_name
self._service_name = service_name
self.plugins = []
def load_plugins(self):
self.plugins = []
for entrypoint in pkg_resources.iter_entry_points('%s.plugin' %
self._project_name):
try:
pluginclass = entrypoint.load()
plugin = pluginclass(self._service_name)
self.plugins.append(plugin)
except Exception, exc:
LOG.error(
_("Failed to load plugin %(plug)s: %(exc)s") % {
'plug': entrypoint,
'exc': exc
})
# Register individual notifiers.
for plugin in self.plugins:
for notifier in plugin.notifiers:
notifier_api.add_driver(notifier)
def setUp(self):
super(TestNovaNotifier, self).setUp()
nova_CONF.compute_driver = 'nova.virt.fake.FakeDriver'
nova_CONF.notification_driver = [nova_notifier.__name__]
nova_CONF.rpc_backend = 'nova.openstack.common.rpc.impl_fake'
nova_CONF.vnc_enabled = False
nova_CONF.spice.enabled = False
self.compute = importutils.import_object(nova_CONF.compute_manager)
self.context = context.get_admin_context()
fake_network.set_stub_network_methods(self.stubs)
self.instance = {"name": "instance-1",
'OS-EXT-SRV-ATTR:instance_name': 'instance-1',
"id": 1,
"image_ref": "FAKE",
"user_id": "FAKE",
"project_id": "FAKE",
"display_name": "FAKE NAME",
"hostname": "abcdef",
"reservation_id": "FAKE RID",
"instance_type_id": 1,
"architecture": "x86",
"memory_mb": "1024",
"root_gb": "20",
"ephemeral_gb": "0",
"vcpus": 1,
'node': "fakenode",
"host": "fakehost",
"availability_zone":
"1e3ce043029547f1a61c1996d1a531a4",
"created_at": '2012-05-08 20:23:41',
"os_type": "linux",
"kernel_id": "kernelid",
"ramdisk_id": "ramdiskid",
"vm_state": vm_states.ACTIVE,
"access_ip_v4": "someip",
"access_ip_v6": "someip",
"metadata": {},
"uuid": "144e08f4-00cb-11e2-888e-5453ed1bbb5f",
"system_metadata": {}}
self.stubs.Set(db, 'instance_info_cache_delete', self.do_nothing)
self.stubs.Set(db, 'instance_destroy', self.do_nothing)
self.stubs.Set(db, 'instance_system_metadata_get',
self.fake_db_instance_system_metadata_get)
self.stubs.Set(db, 'block_device_mapping_get_all_by_instance',
lambda context, instance: {})
self.stubs.Set(db, 'instance_update_and_get_original',
lambda context, uuid, kwargs: (self.instance,
self.instance))
self.stubs.Set(flavors, 'extract_flavor',
lambda ref: {})
# Set up to capture the notification messages generated by the
# plugin and to invoke our notifier plugin.
self.notifications = []
notifier_api._reset_drivers()
notifier_api.add_driver(self)
notifier_api.add_driver(nova_notifier)
ext_mgr = test_manager.TestExtensionManager([
extension.Extension('test',
None,
None,
self.Pollster(),
),
])
self.ext_mgr = ext_mgr
self.gatherer = nova_notifier.DeletedInstanceStatsGatherer(ext_mgr)
nova_notifier.initialize_gatherer(self.gatherer)
# Terminate the instance to trigger the notification.
with contextlib.nested(
# Under Grizzly, Nova has moved to no-db access on the
# compute node. The compute manager uses RPC to talk to
# the conductor. We need to disable communication between
# the nova manager and the remote system since we can't
# expect the message bus to be available, or the remote
# controller to be there if the message bus is online.
mock.patch.object(self.compute, 'conductor_api'),
# The code that looks up the instance uses a global
# reference to the API, so we also have to patch that to
# return our fake data.
mock.patch.object(nova_notifier.instance_info_source,
'instance_get_by_uuid',
self.fake_instance_ref_get),
):
self.compute.terminate_instance(self.context,
instance=self.instance)
def setUp(self):
super(TestNovaNotifier, self).setUp()
nova_CONF.compute_driver = 'nova.virt.fake.FakeDriver'
nova_CONF.notification_driver = [nova_notifier.__name__]
nova_CONF.rpc_backend = 'nova.openstack.common.rpc.impl_fake'
nova_CONF.vnc_enabled = False
nova_CONF.spice.enabled = False
self.compute = importutils.import_object(nova_CONF.compute_manager)
self.context = context.get_admin_context()
fake_network.set_stub_network_methods(self.stubs)
instance_data = {
"display_name": "instance-1",
'OS-EXT-SRV-ATTR:instance_name': 'instance-1',
"id": 1,
"image_ref": "FAKE",
"user_id": "FAKE",
"project_id": "FAKE",
"display_name": "FAKE NAME",
"hostname": "abcdef",
"reservation_id": "FAKE RID",
"instance_type_id": 1,
"architecture": "x86",
"memory_mb": "1024",
"root_gb": "20",
"ephemeral_gb": "0",
"vcpus": 1,
'node': "fakenode",
"host": "fakehost",
"availability_zone": "1e3ce043029547f1a61c1996d1a531a4",
"created_at": '2012-05-08 20:23:41',
"launched_at": '2012-05-08 20:25:45',
"terminated_at": '2012-05-09 20:23:41',
"os_type": "linux",
"kernel_id": "kernelid",
"ramdisk_id": "ramdiskid",
"vm_state": vm_states.ACTIVE,
"task_state": None,
"access_ip_v4": "192.168.5.4",
"access_ip_v6": "2001:DB8::0",
"metadata": {},
"uuid": "144e08f4-00cb-11e2-888e-5453ed1bbb5f",
"system_metadata": {}
}
self.instance = nova_instance.Instance()
for key, value in instance_data.iteritems():
setattr(self.instance, key, value)
self.stubs.Set(db, 'instance_info_cache_delete', self.do_nothing)
self.stubs.Set(db, 'instance_destroy', self.do_nothing)
self.stubs.Set(db, 'instance_system_metadata_get',
self.fake_db_instance_system_metadata_get)
self.stubs.Set(db, 'block_device_mapping_get_all_by_instance',
lambda context, instance: {})
self.stubs.Set(
db, 'instance_update_and_get_original',
lambda context, uuid, kwargs: (self.instance, self.instance))
self.stubs.Set(flavors, 'extract_flavor', lambda ref: {})
# Set up to capture the notification messages generated by the
# plugin and to invoke our notifier plugin.
self.notifications = []
notifier_api._reset_drivers()
notifier_api.add_driver(self)
notifier_api.add_driver(nova_notifier)
ext_mgr = test_manager.TestExtensionManager([
extension.Extension(
'test',
None,
None,
self.Pollster(),
),
])
self.ext_mgr = ext_mgr
self.gatherer = nova_notifier.DeletedInstanceStatsGatherer(ext_mgr)
nova_notifier.initialize_gatherer(self.gatherer)
# Terminate the instance to trigger the notification.
with contextlib.nested(
# Under Grizzly, Nova has moved to no-db access on the
# compute node. The compute manager uses RPC to talk to
# the conductor. We need to disable communication between
# the nova manager and the remote system since we can't
# expect the message bus to be available, or the remote
# controller to be there if the message bus is online.
mock.patch.object(self.compute, 'conductor_api'),
# The code that looks up the instance uses a global
# reference to the API, so we also have to patch that to
# return our fake data.
mock.patch.object(nova_notifier.instance_info_source,
'instance_get_by_uuid',
self.fake_instance_ref_get),
):
self.compute.terminate_instance(self.context,
instance=self.instance)
