Use SetVaultNotifications with an Amazon SDK or CLI

The following command configures SNS notifications for a vault named my-vault:

aws glacier set-vault-notifications --account-id - --vault-name my-vault --vault-notification-config file://notificationconfig.json

notificationconfig.json is a JSON file in the current folder that specifies an SNS topic and the events to publish:

{
  "SNSTopic": "arn:aws:sns:us-west-2:0123456789012:my-vault",
  "Events": ["ArchiveRetrievalCompleted", "InventoryRetrievalCompleted"]
}

Amazon Glacier requires an account ID argument when performing operations, but you can use a hyphen to specify the in-use account.

class GlacierWrapper:
    """Encapsulates Amazon S3 Glacier API operations."""

    def __init__(self, glacier_resource):
        """
        :param glacier_resource: A Boto3 Amazon S3 Glacier resource.
        """
        self.glacier_resource = glacier_resource


    def set_notifications(self, vault, sns_topic_arn):
        """
        Sets an Amazon Simple Notification Service (Amazon SNS) topic as a target
        for notifications. Amazon S3 Glacier publishes messages to this topic for
        the configured list of events.

        :param vault: The vault to set up to publish notifications.
        :param sns_topic_arn: The Amazon Resource Name (ARN) of the topic that
                              receives notifications.
        :return: Data about the new notification configuration.
        """
        try:
            notification = self.glacier_resource.Notification("-", vault.name)
            notification.set(
                vaultNotificationConfig={
                    "SNSTopic": sns_topic_arn,
                    "Events": [
                        "ArchiveRetrievalCompleted",
                        "InventoryRetrievalCompleted",
                    ],
                }
            )
            logger.info(
                "Notifications will be sent to %s for events %s from %s.",
                notification.sns_topic,
                notification.events,
                notification.vault_name,
            )
        except ClientError:
            logger.exception(
                "Couldn't set notifications to %s on %s.", sns_topic_arn, vault.name
            )
            raise
        else:
            return notification