Notifications

Notifications can be generated for several events in the image lifecycle. These can be used for auditing, troubleshooting, etc.

Notification Drivers

  • log

    This driver uses the standard Python logging infrastructure with the notifications ending up in file specificed by the log_file configuration directive.

  • messaging

    This strategy sends notifications to a message queue configured using oslo.messaging configuration options.

  • noop

    This strategy produces no notifications. It is the default strategy.

Notification Types

  • image.create

    Emitted when an image record is created in Glance. Image record creation is independent of image data upload.

  • image.prepare

    Emitted when Glance begins uploading image data to its store.

  • image.upload

    Emitted when Glance has completed the upload of image data to its store.

  • image.activate

    Emitted when an image goes to active status. This occurs when Glance knows where the image data is located.

  • image.send

    Emitted upon completion of an image being sent to a consumer.

  • image.update

    Emitted when an image record is updated in Glance.

  • image.delete

    Emitted when an image deleted from Glance.

  • task.run

    Emitted when a task is picked up by the executor to be run.

  • task.processing

    Emitted when a task is sent over to the executor to begin processing.

  • task.success

    Emitted when a task is successfully completed.

  • task.failure

    Emitted when a task fails.

Content

Every message contains a handful of attributes.

  • message_id

    UUID identifying the message.

  • publisher_id

    The hostname of the glance instance that generated the message.

  • event_type

    Event that generated the message.

  • priority

    One of WARN, INFO or ERROR.

  • timestamp

    UTC timestamp of when event was generated.

  • payload

    Data specific to the event type.

Payload

  • image.send

    The payload for INFO, WARN, and ERROR events contain the following:

    image_id

    ID of the image (UUID)

    owner_id

    Tenant or User ID that owns this image (string)

    receiver_tenant_id

    Tenant ID of the account receiving the image (string)

    receiver_user_id

    User ID of the account receiving the image (string) destination_ip

    bytes_sent

    The number of bytes actually sent

  • image.create

    For INFO events, it is the image metadata. WARN and ERROR events contain a text message in the payload.

  • image.prepare

    For INFO events, it is the image metadata. WARN and ERROR events contain a text message in the payload.

  • image.upload

    For INFO events, it is the image metadata. WARN and ERROR events contain a text message in the payload.

  • image.activate

    For INFO events, it is the image metadata. WARN and ERROR events contain a text message in the payload.

  • image.update

    For INFO events, it is the image metadata. WARN and ERROR events contain a text message in the payload.

  • image.delete

    For INFO events, it is the image id. WARN and ERROR events contain a text message in the payload.

  • task.run

    The payload for INFO, WARN, and ERROR events contain the following:

    task_id

    ID of the task (UUID)

    owner

    Tenant or User ID that created this task (string)

    task_type

    Type of the task. Example, task_type is “import”. (string)

    status,

    status of the task. Status can be “pending”, “processing”, “success” or “failure”. (string)

    task_input

    Input provided by the user when attempting to create a task. (dict)

    result

    Resulting output from a successful task. (dict)

    message

    Message shown in the task if it fails. None if task succeeds. (string)

    expires_at

    UTC time at which the task would not be visible to the user. (string)

    created_at

    UTC time at which the task was created. (string)

    updated_at

    UTC time at which the task was latest updated. (string)

    The exceptions are:-

    For INFO events, it is the task dict with result and message as None. WARN and ERROR events contain a text message in the payload.

  • task.processing

    For INFO events, it is the task dict with result and message as None. WARN and ERROR events contain a text message in the payload.

  • task.success

    For INFO events, it is the task dict with message as None and result is a dict. WARN and ERROR events contain a text message in the payload.

  • task.failure

    For INFO events, it is the task dict with result as None and message is text. WARN and ERROR events contain a text message in the payload.

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