Notifications in Nova

Similarly to other OpenStack services Nova emits notifications to the message bus with the Notifier class provided by oslo.messaging [1]. From the notification consumer point of view a notification consists of two parts: an envelope with a fixed structure defined by oslo.messaging and a payload defined by the service emitting the notification. The envelope format is the following:

{
    "priority": <string, selected from a predefined list by the sender>,
    "event_type": <string, defined by the sender>,
    "timestamp": <string, the isotime of when the notification emitted>,
    "publisher_id": <string, defined by the sender>,
    "message_id": <uuid, generated by oslo>,
    "payload": <json serialized dict, defined by the sender>
}

There are two types of notifications in Nova: legacy notifications which have an unversioned payload and newer notifications which have a versioned payload.

Unversioned notifications

Nova code uses the nova.rpc.get_notifier call to get a configured oslo.messaging Notifier object and it uses the oslo provided functions on the Notifier object to emit notifications. The configuration of the returned Notifier object depends on the parameters of the get_notifier call and the value of the oslo.messaging configuration options driver and topics. There are notification configuration options in Nova which are specific for certain notification types like notifications.notify_on_state_change, notifications.notify_on_api_faults, notifications.default_level, etc.

The structure of the payload of the unversioned notifications is defined in the code that emits the notification and no documentation or enforced backward compatibility contract exists for that format.

Versioned notifications

The versioned notification concept is created to fix the shortcomings of the unversioned notifications. The envelope structure of the emitted notification is the same as in the unversioned notification case as it is provided by oslo.messaging. However the payload is not a free form dictionary but a serialized oslo versionedobject [2].

For example the wire format of the service.update notification looks like the following:

{
    "priority":"INFO",
    "payload":{
        "nova_object.namespace":"nova",
        "nova_object.name":"ServiceStatusPayload",
        "nova_object.version":"1.0",
        "nova_object.data":{
            "host":"host1",
            "disabled":false,
            "last_seen_up":null,
            "binary":"nova-compute",
            "topic":"compute",
            "disabled_reason":null,
            "report_count":1,
            "forced_down":false,
            "version":2
        }
    },
    "event_type":"service.update",
    "publisher_id":"nova-compute:host1"
}

The serialized oslo versionedobject as a payload provides a version number to the consumer so the consumer can detect if the structure of the payload is changed. Nova provides the following contract regarding the versioned notification payload:

  • the payload version defined by the the nova_object.version field of the payload will be increased if and only if the syntax or the semantics of the nova_object.data field of the payload is changed.
  • a minor version bump indicates a backward compatible change which means that only new fields are added to the payload so a well written consumer can still consume the new payload without any change.
  • a major version bump indicates a backward incompatible change of the payload which can mean removed fields, type change, etc in the payload.

There is a Nova configuration parameter notifications.notification_format that can be used to specify which notifications are emitted by Nova. The possible values are unversioned, versioned, both and the default value is both.

How to add a new versioned notification

To support the above contract from the Nova code every versioned notification is modeled with oslo versionedobjects. Every versioned notification class shall inherit from the nova.notifications.objects.base.NotificationBase which already defines three mandatory fields of the notification event_type, publisher_id and priority. The new notification class shall add a new field payload with an appropriate payload type. The payload object of the notifications shall inherit from the nova.objects.notifications.base.NotificationPayloadBase class and shall define the fields of the payload as versionedobject fields. The base classes are described in the following section.

The nova.notifications.objects.base module

class NotificationBase(**kwargs)

Bases: nova.notifications.objects.base.NotificationObject

Base class for versioned notifications.

Every subclass shall define a ‘payload’ field.

emit(context)

Send the notification.

class NotificationObject(**kwargs)

Bases: nova.objects.base.NovaObject

Base class for every notification related versioned object.

class NotificationPayloadBase(**kwargs)

Bases: nova.notifications.objects.base.NotificationObject

Base class for the payload of versioned notifications.

populate_schema(**kwargs)

Populate the object based on the SCHEMA and the source objects

Parameters:kwargs – A dict contains the source object at the key defined in the SCHEMA
notification_sample(sample)

Class decorator to attach the notification sample information to the notification object for documentation generation purposes.

Parameters:sample – the path of the sample json file relative to the doc/notification_samples/ directory in the nova repository root.

Please note that the notification objects shall not be registered to the NovaObjectRegistry to avoid mixing nova internal objects with the notification objects. Instead of that use the register_notification decorator on every concrete notification object.

The following code example defines the necessary model classes for a new notification myobject.update:

@notification.notification_sample('myobject-update.json')
@object_base.NovaObjectRegistry.register.register_notification
class MyObjectNotification(notification.NotificationBase):
    # Version 1.0: Initial version
    VERSION = '1.0'

    fields = {
        'payload': fields.ObjectField('MyObjectUpdatePayload')
    }


@object_base.NovaObjectRegistry.register.register_notification
class MyObjectUpdatePayload(notification.NotificationPayloadBase):
    # Version 1.0: Initial version
    VERSION = '1.0'
    fields = {
        'some_data': fields.StringField(),
        'another_data': fields.StringField(),
    }

After that the notification can be populated and emitted with the following code:

payload = MyObjectUpdatePayload(some_data="foo", another_data="bar")
MyObjectNotification(
    publisher=notification.NotificationPublisher.from_service_obj(
        <nova.objects.service.Service instance that emits the notification>),
    event_type=notification.EventType(
        object='myobject',
        action=fields.NotificationAction.UPDATE),
    priority=fields.NotificationPriority.INFO,
    payload=payload).emit(context)

The above code will generate the following notification on the wire:

{
    "priority":"INFO",
    "payload":{
        "nova_object.namespace":"nova",
        "nova_object.name":"MyObjectUpdatePayload",
        "nova_object.version":"1.0",
        "nova_object.data":{
            "some_data":"foo",
            "another_data":"bar",
        }
    },
    "event_type":"myobject.update",
    "publisher_id":"<the name of the service>:<the host where the service runs>"
}

There is a possibility to reuse an existing versionedobject as notification payload by adding a SCHEMA field for the payload class that defines a mapping between the fields of existing objects and the fields of the new payload object. For example the service.status notification reuses the existing nova.objects.service.Service object when defines the notification’s payload:

@notification.notification_sample('service-update.json')
@object_base.NovaObjectRegistry.register.register_notification
class ServiceStatusNotification(notification.NotificationBase):
    # Version 1.0: Initial version
    VERSION = '1.0'

    fields = {
        'payload': fields.ObjectField('ServiceStatusPayload')
    }

@object_base.NovaObjectRegistry.register.register_notification
class ServiceStatusPayload(notification.NotificationPayloadBase):
    SCHEMA = {
        'host': ('service', 'host'),
        'binary': ('service', 'binary'),
        'topic': ('service', 'topic'),
        'report_count': ('service', 'report_count'),
        'disabled': ('service', 'disabled'),
        'disabled_reason': ('service', 'disabled_reason'),
        'availability_zone': ('service', 'availability_zone'),
        'last_seen_up': ('service', 'last_seen_up'),
        'forced_down': ('service', 'forced_down'),
        'version': ('service', 'version')
    }
    # Version 1.0: Initial version
    VERSION = '1.0'
    fields = {
        'host': fields.StringField(nullable=True),
        'binary': fields.StringField(nullable=True),
        'topic': fields.StringField(nullable=True),
        'report_count': fields.IntegerField(),
        'disabled': fields.BooleanField(),
        'disabled_reason': fields.StringField(nullable=True),
        'availability_zone': fields.StringField(nullable=True),
        'last_seen_up': fields.DateTimeField(nullable=True),
        'forced_down': fields.BooleanField(),
        'version': fields.IntegerField(),
    }

    def populate_schema(self, service):
        super(ServiceStatusPayload, self).populate_schema(service=service)

If the SCHEMA field is defined then the payload object needs to be populated with the populate_schema call before it can be emitted:

payload = ServiceStatusPayload()
payload.populate_schema(service=<nova.object.service.Service object>)
ServiceStatusNotification(
    publisher=notification.NotificationPublisher.from_service_obj(
        <nova.object.service.Service object>),
    event_type=notification.EventType(
        object='service',
        action=fields.NotificationAction.UPDATE),
    priority=fields.NotificationPriority.INFO,
    payload=payload).emit(context)

The above code will emit the already shown notification on the wire.

Every item in the SCHEMA has the syntax of:

<payload field name which needs to be filled>:
    (<name of the parameter of the populate_schema call>,
     <the name of a field of the parameter object>)

The mapping defined in the SCHEMA field has the following semantics. When the populate_schema function is called the content of the SCHEMA field is enumerated and the value of the field of the pointed parameter object is copied to the requested payload field. So in the above example the host field of the payload object is populated from the value of the host field of the service object that is passed as a parameter to the populate_schema call.

A notification payload object can reuse fields from multiple existing objects. Also a notification can have both new and reused fields in its payload.

Note that the notification’s publisher instance can be created two different ways. It can be created by instantiating the NotificationPublisher object with a host and a binary string parameter or it can be generated from a Service object by calling NotificationPublisher.from_service_obj function.

Versioned notifications shall have a sample file stored under doc/sample_notifications directory and the notification object shall be decorated with the notification_sample decorator. For example the service.update notification has a sample file stored in doc/sample_notifications/service-update.json and the ServiceUpdateNotification class is decorated accordingly.

What should be in the notification payload

This is just a guideline. You should always consider the actual use case that requires the notification.

  • Always include the identifier (e.g. uuid) of the entity that can be used to query the whole entity over the REST API so that the consumer can get more information about the entity.
  • You should consider including those fields that are related to the event you are sending the notification about. For example if a change of a field of the entity triggers an update notification then you should include the field to the payload.
  • An update notification should contain information about what part of the entity is changed. Either by filling the nova_object.changes part of the payload (note that it is not supported by the notification framework currently) or sending both the old state and the new state of the entity in the payload.
  • You should never include a nova internal object in the payload. Create a new object and use the SCHEMA field to map the internal object to the notification payload. This way the evolution of the internal object model can be decoupled from the evolution of the notification payload.
  • The delete notification should contain the same information as the create or update notifications. This makes it possible for the consumer to listen only to the delete notifications but still filter on some fields of the entity (e.g. project_id).

Existing versioned notifications

Event type Notification class Payload class Sample
compute.exception ExceptionNotification ExceptionPayload
{
    "event_type": "compute.exception",
    "payload": {
        "nova_object.data": {
            "exception": "AggregateNameExists",
            "exception_message": "Aggregate versioned_exc_aggregate already exists.",
            "function_name": "_aggregate_create_in_db",
            "module_name": "nova.objects.aggregate"
        },
        "nova_object.name": "ExceptionPayload",
        "nova_object.namespace": "nova",
        "nova_object.version": "1.0"
    },
    "priority": "ERROR",
    "publisher_id": "nova-api:fake-mini"
}
flavor.create FlavorNotification FlavorPayload
{
    "priority": "INFO",
    "payload": {
        "nova_object.namespace": "nova",
        "nova_object.version": "1.3",
        "nova_object.name": "FlavorPayload",
        "nova_object.data": {
            "name": "test_flavor",
            "memory_mb": 1024,
            "ephemeral_gb": 0,
            "disabled": false,
            "vcpus": 2,
            "swap": 0,
            "rxtx_factor": 2.0,
            "is_public": true,
            "root_gb": 10,
            "vcpu_weight": 0,
            "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
            "extra_specs": null,
            "projects": []
        }
    },
    "event_type": "flavor.create",
    "publisher_id": "nova-api:fake-mini"
}
flavor.delete FlavorNotification FlavorPayload
{
    "priority": "INFO",
    "payload": {
        "nova_object.namespace": "nova",
        "nova_object.version": "1.3",
        "nova_object.name": "FlavorPayload",
        "nova_object.data": {
            "name": "test_flavor",
            "memory_mb": 1024,
            "ephemeral_gb": 0,
            "disabled": false,
            "vcpus": 2,
            "swap": 0,
            "rxtx_factor": 2.0,
            "is_public": true,
            "root_gb": 10,
            "vcpu_weight": 0,
            "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
            "extra_specs": null,
            "projects": []
        }
    },
    "event_type": "flavor.delete",
    "publisher_id": "nova-api:fake-mini"
}
flavor.update FlavorNotification FlavorPayload
{
    "priority": "INFO",
    "payload": {
        "nova_object.namespace": "nova",
        "nova_object.version": "1.3",
        "nova_object.name": "FlavorPayload",
        "nova_object.data": {
            "name": "test_flavor",
            "memory_mb": 1024,
            "ephemeral_gb": 0,
            "disabled": false,
            "vcpus": 2,
            "extra_specs": {
                "key1": "value1",
                "key2": "value2"
            },
            "projects": ["fake_tenant"],
            "swap": 0,
            "rxtx_factor": 2.0,
            "is_public": false,
            "root_gb": 10,
            "vcpu_weight": 0,
            "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3"
        }
    },
    "event_type": "flavor.update",
    "publisher_id": "nova-api:fake-mini"
}
instance.create.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.create.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.create.error InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.create.error",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault": {
                "nova_object.data": {
                    "exception": "FlavorDiskTooSmall",
                    "exception_message": "The created instance's disk would be too small.",
                    "function_name": "_build_resources",
                    "module_name": "nova.tests.functional.notification_sample_tests.test_instance"
                },
                "nova_object.name": "ExceptionPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0"
            },
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [],
            "kernel_id":"",
            "launched_at":null,
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"building",
            "task_state":null,
            "power_state":"pending",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"ERROR",
    "publisher_id":"nova-compute:compute"
}
instance.create.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.create.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":null,
            "host_name":"some-server",
            "ip_addresses": [],
            "kernel_id":"",
            "launched_at":null,
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":null,
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"building",
            "task_state":null,
            "power_state":"pending",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.delete.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.delete.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":"2012-10-29T13:42:11Z",
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses":[],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"deleted",
            "task_state":null,
            "power_state":"pending",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":"2012-10-29T13:42:11Z",
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.delete.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.delete.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"deleting",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.pause.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.pause.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"paused",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}

instance.pause.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.pause.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"pausing",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}

instance.power_off.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.power_off.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"stopped",
            "task_state":null,
            "power_state":"shutdown",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.power_off.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.power_off.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"powering-off",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.power_on.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.power_on.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.power_on.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.power_on.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"stopped",
            "task_state":"powering-on",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.reboot.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.reboot.end",
    "payload":{
        "nova_object.data":{
            "architecture":null,
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "projects": null,
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.reboot.error InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.reboot.error",
    "payload":{
        "nova_object.data":{
            "architecture": null,
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault": {
                "nova_object.data": {
                    "exception": "UnsupportedVirtType",
                    "exception_message": "Virtualization type 'FakeVirt' is not supported by this compute driver",
                    "function_name": "_hard_reboot",
                    "module_name": "nova.tests.functional.notification_sample_tests.test_instance"
                },
                "nova_object.name": "ExceptionPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0"
            },
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"reboot_started_hard",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "projects": null,
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"ERROR",
    "publisher_id":"nova-compute:compute"
}
instance.reboot.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.reboot.start",
    "payload":{
        "nova_object.data":{
            "architecture":null,
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"reboot_pending_hard",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "projects": null,
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.rebuild.end InstanceActionNotification InstanceActionPayload
{
    "event_type": "instance.rebuild.end",
    "publisher_id": "nova-compute:compute",
    "payload": {
        "nova_object.namespace": "nova",
        "nova_object.version": "1.1",
        "nova_object.data": {
            "node": "fake-mini",
            "fault": null,
            "host_name": "some-server",
            "power_state": "running",
            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
            "display_name": "some-server",
            "display_description": "some-server",
            "tenant_id": "6f70656e737461636b20342065766572",
            "kernel_id": "",
            "created_at": "2012-10-29T13:42:11Z",
            "host": "compute",
            "reservation_id": "r-wczvhcla",
            "flavor": {
                "nova_object.namespace": "nova",
                "nova_object.version": "1.3",
                "nova_object.data": {
                    "disabled": false,
                    "ephemeral_gb": 0,
                    "extra_specs": {"hw:watchdog_action": "disabled"},
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "is_public": true,
                    "memory_mb": 512,
                    "name": "test_flavor",
                    "projects": null,
                    "root_gb": 1,
                    "rxtx_factor": 1.0,
                    "swap": 0,
                    "vcpu_weight": 0,
                    "vcpus": 1
                },
                "nova_object.name": "FlavorPayload"
            },
            "user_id": "fake",
            "terminated_at": null,
            "ip_addresses": [
                {
                    "nova_object.namespace": "nova",
                    "nova_object.version": "1.0",
                    "nova_object.data": {
                        "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                        "version": 4,
                        "label": "private-network",
                        "address": "192.168.1.3",
                        "meta": {},
                        "mac": "fa:16:3e:4c:2c:30",
                        "device_name": "tapce531f90-19"
                    },
                    "nova_object.name": "IpPayload"
                }
            ],
            "state": "active",
            "launched_at": "2012-10-29T13:42:11Z",
            "metadata": {},
            "deleted_at": null,
            "os_type": null,
            "uuid": "b271fcb9-75c3-4c76-84eb-6ccad1150ece",
            "locked": false,
            "availability_zone": "nova",
            "ramdisk_id": "",
            "architecture": null,
            "progress": 0,
            "task_state": null
        },
        "nova_object.name": "InstanceActionPayload"
    },
    "priority": "INFO"
}
instance.rebuild.error InstanceActionNotification InstanceActionPayload
{
    "priority": "ERROR",
    "payload": {
        "nova_object.name": "InstanceActionPayload",
        "nova_object.data": {
            "state": "active",
            "availability_zone": "nova",
            "kernel_id": "",
            "host_name": "some-server",
            "progress": 0,
            "task_state": "rebuilding",
            "deleted_at": null,
            "architecture": null,
            "ramdisk_id": "",
            "locked": false,
            "created_at": "2012-10-29T13:42:11Z",
            "host": "compute",
            "display_name": "some-server",
            "os_type": null,
            "metadata": {},
            "ip_addresses": [
                {
                    "nova_object.name": "IpPayload",
                    "nova_object.data": {
                        "device_name": "tapce531f90-19",
                        "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                        "address": "192.168.1.3",
                        "version": 4,
                        "meta": {},
                        "label": "private-network",
                        "mac": "fa:16:3e:4c:2c:30"
                    },
                    "nova_object.version": "1.0",
                    "nova_object.namespace": "nova"
                }
            ],
            "power_state": "running",
            "display_description": "some-server",
            "uuid": "5fafd989-4043-44b4-8acc-907e847f4b70",
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "disabled": false,
                    "ephemeral_gb": 0,
                    "extra_specs": {"hw:watchdog_action": "disabled"},
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "is_public": true,
                    "memory_mb": 512,
                    "name": "test_flavor",
                    "projects": null,
                    "root_gb": 1,
                    "rxtx_factor": 1.0,
                    "swap": 0,
                    "vcpu_weight": 0,
                    "vcpus": 1
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "reservation_id": "r-pfiic52h",
            "terminated_at": null,
            "tenant_id": "6f70656e737461636b20342065766572",
            "node": "fake-mini",
            "launched_at": "2012-10-29T13:42:11Z",
            "user_id": "fake",
            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
            "fault": {
                "nova_object.name": "ExceptionPayload",
                "nova_object.data": {
                    "module_name": "nova.tests.functional.notification_sample_tests.test_instance",
                    "exception_message": "Insufficient compute resources: fake-resource.",
                    "function_name": "_compute_resources_unavailable",
                    "exception": "ComputeResourcesUnavailable"
                },
                "nova_object.version": "1.0",
                "nova_object.namespace": "nova"
            }
        },
        "nova_object.version": "1.1",
        "nova_object.namespace": "nova"
    },
    "publisher_id": "nova-compute:compute",
    "event_type": "instance.rebuild.error"
}
instance.rebuild.start InstanceActionNotification InstanceActionPayload
{
    "priority": "INFO",
    "event_type": "instance.rebuild.start",
    "publisher_id": "nova-compute:compute",
    "payload": {
        "nova_object.name": "InstanceActionPayload",
        "nova_object.namespace": "nova",
        "nova_object.version": "1.1",
        "nova_object.data": {
            "display_description": "some-server",
            "reservation_id": "r-rqe0mlje",
            "progress": 0,
            "user_id": "fake",
            "task_state": "rebuilding",
            "node": "fake-mini",
            "created_at": "2012-10-29T13:42:11Z",
            "kernel_id": "",
            "metadata": {},
            "deleted_at": null,
            "host_name": "some-server",
            "uuid": "ff0ee97f-3f14-4259-a79c-83949f8493bd",
            "os_type": null,
            "display_name": "some-server",
            "ramdisk_id": "",
            "power_state": "running",
            "locked": false,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.3",
                "nova_object.data": {
                    "disabled": false,
                    "ephemeral_gb": 0,
                    "extra_specs": {"hw:watchdog_action": "disabled"},
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "is_public": true,
                    "memory_mb": 512,
                    "name": "test_flavor",
                    "projects": null,
                    "root_gb": 1,
                    "rxtx_factor": 1.0,
                    "swap": 0,
                    "vcpu_weight": 0,
                    "vcpus": 1
                }
            },
            "terminated_at": null,
            "architecture": null,
            "launched_at": "2012-10-29T13:42:11Z",
            "ip_addresses": [
                {
                    "nova_object.name": "IpPayload",
                    "nova_object.namespace": "nova",
                    "nova_object.version": "1.0",
                    "nova_object.data": {
                        "meta": {},
                        "mac": "fa:16:3e:4c:2c:30",
                        "label": "private-network",
                        "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                        "version": 4,
                        "device_name": "tapce531f90-19",
                        "address": "192.168.1.3"
                    }
                }
            ],
            "tenant_id": "6f70656e737461636b20342065766572",
            "availability_zone": "nova",
            "host": "compute",
            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
            "state": "active",
            "fault": null
        }
    }
}
instance.resize.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.resize.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"resize_migrated",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.resize.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.resize.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"resize_migrating",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.resize_finish.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.resize_finish.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"resized",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "d5a8bb54-365a-45ae-abdb-38d249df7845",
                    "name": "other_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 256,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "reset"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.resize_finish.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.resize_finish.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"resize_finish",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "d5a8bb54-365a-45ae-abdb-38d249df7845",
                    "name": "other_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 256,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "reset"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.restore.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.restore.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.restore.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.restore.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"soft-delete",
            "task_state":"restoring",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.resume.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.resume.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.resume.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.resume.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"suspended",
            "task_state":"resuming",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.shelve.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.shelve.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"shelved",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.shelve.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.shelve.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"shelving",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.shelve_offload.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.shelve_offload.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":null,
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":null,
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"shelved_offloaded",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.shelve_offload.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.shelve_offload.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"shelved",
            "task_state":"shelving_offloading",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}

instance.shutdown.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.shutdown.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"deleting",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.shutdown.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.shutdown.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"deleting",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.snapshot.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.snapshot.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.snapshot.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.snapshot.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"image_snapshot",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.suspend.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.suspend.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"suspended",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.suspend.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.suspend.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":"suspending",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.unpause.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.unpause.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.unpause.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.unpause.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"paused",
            "task_state":"unpausing",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.unshelve.end InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.unshelve.end",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":"compute",
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":"fake-mini",
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"active",
            "task_state":null,
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.unshelve.start InstanceActionNotification InstanceActionPayload
{
    "event_type":"instance.unshelve.start",
    "payload":{
        "nova_object.data":{
            "architecture":"x86_64",
            "availability_zone": "nova",
            "created_at":"2012-10-29T13:42:11Z",
            "deleted_at":null,
            "display_name":"some-server",
            "display_description":"some-server",
            "fault":null,
            "host":null,
            "host_name":"some-server",
            "ip_addresses": [{
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0",
                "nova_object.data": {
                    "mac": "fa:16:3e:4c:2c:30",
                    "address": "192.168.1.3",
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "meta": {},
                    "version": 4,
                    "label": "private-network",
                    "device_name": "tapce531f90-19"
                }
            }],
            "kernel_id":"",
            "launched_at":"2012-10-29T13:42:11Z",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "metadata":{},
            "locked":false,
            "node":null,
            "os_type":null,
            "progress":0,
            "ramdisk_id":"",
            "reservation_id":"r-npxv0e40",
            "state":"shelved_offloaded",
            "task_state":"unshelving",
            "power_state":"running",
            "tenant_id":"6f70656e737461636b20342065766572",
            "terminated_at":null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id":"fake",
            "uuid":"178b0921-8f85-4257-88b6-2e743b5a975c"
        },
        "nova_object.name":"InstanceActionPayload",
        "nova_object.namespace":"nova",
        "nova_object.version":"1.1"
    },
    "priority":"INFO",
    "publisher_id":"nova-compute:compute"
}
instance.volume_swap.end InstanceActionVolumeSwapNotification InstanceActionVolumeSwapPayload
{
    "event_type": "instance.volume_swap.end",
    "payload": {
        "nova_object.data": {
            "architecture": "x86_64",
            "availability_zone": "nova",
            "created_at": "2012-10-29T13:42:11Z",
            "deleted_at": null,
            "display_name": "some-server",
            "display_description":"some-server",
            "fault": null,
            "flavor": {
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.name": "FlavorPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.3"
            },
            "host": "compute",
            "host_name": "some-server",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "ip_addresses": [{
                "nova_object.data": {
                    "address": "192.168.1.3",
                    "device_name": "tapce531f90-19",
                    "label": "private-network",
                    "meta": {},
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "version": 4,
                    "mac": "fa:16:3e:4c:2c:30"
                },
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0"
            }],
            "kernel_id": "",
            "launched_at": "2012-10-29T13:42:11Z",
            "metadata": {},
            "locked":false,
            "new_volume_id": "227cc671-f30b-4488-96fd-7d0bf13648d8",
            "node": "fake-mini",
            "old_volume_id": "a07f71dc-8151-4e7d-a0cc-cd24a3f11113",
            "os_type": null,
            "power_state":"running",
            "progress": 0,
            "ramdisk_id": "",
            "reservation_id": "r-6w6ruqaz",
            "state": "active",
            "task_state": null,
            "tenant_id": "6f70656e737461636b20342065766572",
            "terminated_at": null,
            "user_id": "fake",
            "uuid": "0ab886d0-7443-4107-9265-48371bfa662b"
        },
        "nova_object.name": "InstanceActionVolumeSwapPayload",
        "nova_object.namespace": "nova",
        "nova_object.version": "1.1"
    },
    "priority": "INFO",
    "publisher_id": "nova-compute:compute"
}
instance.volume_swap.error InstanceActionVolumeSwapNotification InstanceActionVolumeSwapPayload
{
    "event_type": "instance.volume_swap.error",
    "payload": {
        "nova_object.data": {
            "architecture": "x86_64",
            "availability_zone": "nova",
            "created_at": "2012-10-29T13:42:11Z",
            "deleted_at": null,
            "display_name": "some-server",
            "display_description":"some-server",
            "fault": {
                "nova_object.data": {
                    "exception": "TypeError",
                    "exception_message": "'tuple' object does not support item assignment",
                    "function_name": "_init_volume_connection",
                    "module_name": "nova.compute.manager"
                },
                "nova_object.name": "ExceptionPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0"
            },
            "flavor": {
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.name": "FlavorPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.3"
            },
            "host": "compute",
            "host_name": "some-server",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "ip_addresses": [{
                "nova_object.data": {
                    "address": "192.168.1.3",
                    "device_name": "tapce531f90-19",
                    "label": "private-network",
                    "meta": {},
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "version": 4,
                    "mac": "fa:16:3e:4c:2c:30"
                },
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0"
            }],
            "kernel_id": "",
            "launched_at": "2012-10-29T13:42:11Z",
            "metadata": {},
            "locked":false,
            "new_volume_id": "9c6d9c2d-7a8f-4c80-938d-3bf062b8d489",
            "node": "fake-mini",
            "old_volume_id": "828419fa-3efb-4533-b458-4267ca5fe9b1",
            "os_type": null,
            "power_state":"running",
            "progress": 0,
            "ramdisk_id": "",
            "reservation_id": "r-6w6ruqaz",
            "state": "active",
            "task_state": null,
            "tenant_id": "6f70656e737461636b20342065766572",
            "terminated_at": null,
            "user_id": "fake",
            "uuid": "0ab886d0-7443-4107-9265-48371bfa662b"
        },
        "nova_object.name": "InstanceActionVolumeSwapPayload",
        "nova_object.namespace": "nova",
        "nova_object.version": "1.1"
    },
    "priority": "ERROR",
    "publisher_id": "nova-compute:compute"
}
instance.volume_swap.start InstanceActionVolumeSwapNotification InstanceActionVolumeSwapPayload
{
    "event_type": "instance.volume_swap.start",
    "payload": {
        "nova_object.data": {
            "architecture": "x86_64",
            "availability_zone": "nova",
            "created_at": "2012-10-29T13:42:11Z",
            "deleted_at": null,
            "display_name": "some-server",
            "display_description":"some-server",
            "fault": null,
            "flavor": {
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.name": "FlavorPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.3"
            },
            "host": "compute",
            "host_name": "some-server",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "ip_addresses": [{
                "nova_object.data": {
                    "address": "192.168.1.3",
                    "device_name": "tapce531f90-19",
                    "label": "private-network",
                    "meta": {},
                    "port_uuid": "ce531f90-199f-48c0-816c-13e38010b442",
                    "version": 4,
                    "mac": "fa:16:3e:4c:2c:30"
                },
                "nova_object.name": "IpPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0"
            }],
            "kernel_id": "",
            "launched_at": "2012-10-29T13:42:11Z",
            "metadata": {},
            "locked":false,
            "new_volume_id": "227cc671-f30b-4488-96fd-7d0bf13648d8",
            "node": "fake-mini",
            "old_volume_id": "a07f71dc-8151-4e7d-a0cc-cd24a3f11113",
            "os_type": null,
            "power_state":"running",
            "progress": 0,
            "ramdisk_id": "",
            "reservation_id": "r-6w6ruqaz",
            "state": "active",
            "task_state": null,
            "tenant_id": "6f70656e737461636b20342065766572",
            "terminated_at": null,
            "user_id": "fake",
            "uuid": "0ab886d0-7443-4107-9265-48371bfa662b"
        },
        "nova_object.name": "InstanceActionVolumeSwapPayload",
        "nova_object.namespace": "nova",
        "nova_object.version": "1.1"
    },
    "priority": "INFO",
    "publisher_id": "nova-compute:compute"
}
instance.update InstanceUpdateNotification InstanceUpdatePayload
{
    "event_type": "instance.update",
    "payload": {
        "nova_object.data": {
            "architecture": "x86_64",
            "audit_period": {
                "nova_object.data": {
                    "audit_period_beginning": "2012-10-01T00:00:00Z",
                    "audit_period_ending": "2012-10-29T13:42:11Z"},
                "nova_object.name": "AuditPeriodPayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0"
            },
            "availability_zone": "nova",
            "bandwidth": [],
            "created_at": "2012-10-29T13:42:11Z",
            "deleted_at": null,
            "display_name": "some-server",
            "display_description":"some-server",
            "host": "compute",
            "host_name": "some-server",
            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
            "kernel_id": "",
            "launched_at": null,
            "metadata": {},
            "locked":false,
            "node": "fake-mini",
            "old_display_name": null,
            "os_type": null,
            "progress": 0,
            "ramdisk_id": "",
            "reservation_id": "r-sd3ygfjj",
            "state": "building",
            "task_state": "scheduling",
            "power_state": "pending",
            "ip_addresses": [],
            "state_update": {
                "nova_object.data": {
                    "new_task_state": null,
                    "old_state": "building",
                    "old_task_state": null,
                    "state": "building"},
                "nova_object.name": "InstanceStateUpdatePayload",
                "nova_object.namespace": "nova",
                "nova_object.version": "1.0"},
            "tenant_id": "6f70656e737461636b20342065766572",
            "terminated_at": null,
            "flavor": {
                "nova_object.name": "FlavorPayload",
                "nova_object.data": {
                    "flavorid": "a22d5517-147c-4147-a0d1-e698df5cd4e3",
                    "name": "test_flavor",
                    "root_gb": 1,
                    "vcpus": 1,
                    "ephemeral_gb": 0,
                    "memory_mb": 512,
                    "disabled": false,
                    "rxtx_factor": 1.0,
                    "extra_specs": {
                        "hw:watchdog_action": "disabled"
                    },
                    "projects": null,
                    "swap": 0,
                    "is_public": true,
                    "vcpu_weight": 0
                },
                "nova_object.version": "1.3",
                "nova_object.namespace": "nova"
            },
            "user_id": "fake",
            "uuid": "c03c0bf9-f46e-4e4f-93f1-817568567ee2"},
        "nova_object.name": "InstanceUpdatePayload",
        "nova_object.namespace": "nova",
        "nova_object.version": "1.1"},
    "priority": "INFO",
    "publisher_id": "nova-compute:fake-mini"
}
service.update ServiceStatusNotification ServiceStatusPayload
{
    "priority": "INFO",
    "payload": {
        "nova_object.namespace": "nova",
        "nova_object.name": "ServiceStatusPayload",
        "nova_object.version": "1.0",
        "nova_object.data": {
            "host": "host1",
            "disabled": false,
            "last_seen_up": "2012-10-29T13:42:05Z",
            "binary": "nova-compute",
            "topic": "compute",
            "disabled_reason": null,
            "report_count": 1,
            "forced_down": false,
            "version": 17,
            "availability_zone": null
        }
    },
    "event_type": "service.update",
    "publisher_id": "nova-compute:host1"
}
[1]http://docs.openstack.org/developer/oslo.messaging/notifier.html
[2]http://docs.openstack.org/developer/oslo.versionedobjects