Tacker Resource Events Usage Guide

Overview

OpenStack Tacker supports capturing resource event information when the tacker resources undergo create, update, delete, scale and monitor operations. This information becomes useful to an admin for audit purposes.

Tacker Resources supporting Events

As of Newton release, events information is captured for below:

• VNF
• VNFD
• VIM

Tacker supported event types

Below are the event types that are currently supported:

• CREATE
• DELETE
• MONITOR
• SCALE
• UPDATE

The above can be used as filters when listing events using tacker client.

Accessing Events

Tacker supports display of events to an end user via

• Horizon UI - a separate events tab per resource displays associated events.

• Tacker Client - supports below commands:

  • event-show: Show detailed info for a given event ID.
  • events-list: Lists all events for all resources.
  • vim-events-list: List events that belong to a given VIM.
  • vnf-events-list: List events that belong to a given VNF.
  • vnfd-events-list: List events that belong to a given VNFD.

NOTE: For more details on the syntax of these CLIs, refer to Tacker CLI reference guide

Tacker Client command usage examples to access resource lifecycle events

1. The following command displays all the state transitions that occurred on a long running VNF. The sample output illustrates a VNF that has successfully gone through a scale out operation. Note, the <resource_id> here is VNF’s uuid.

tacker vnf-events-list --resource_id <resource_id>

+----+---------------+-------------------+-------------------+------------+-------------------+---------------------+
| id | resource_type | resource_id       | resource_state    | event_type | timestamp         | event_details       |
+----+---------------+-------------------+-------------------+------------+-------------------+---------------------+
| 13 | vnf           | 9dd7b2f1-e91e-418 | PENDING_CREATE    | CREATE     | 2016-09-21        | VNF UUID assigned.  |
|    |               | 3-bcbe-           |                   |            | 20:12:37          |                     |
|    |               | 34b80bdb18fb      |                   |            |                   |                     |
| 14 | vnf           | 9dd7b2f1-e91e-418 | PENDING_CREATE    | CREATE     | 2016-09-21        | Infra Instance ID   |
|    |               | 3-bcbe-           |                   |            | 20:13:09          | created: 3bd369e4-9 |
|    |               | 34b80bdb18fb      |                   |            |                   | ee3-4e58-86e3-8acbb |
|    |               |                   |                   |            |                   | dccedb5 and Mgmt    |
|    |               |                   |                   |            |                   | URL set: {"VDU1":   |
|    |               |                   |                   |            |                   | ["10.0.0.9",        |
|    |               |                   |                   |            |                   | "10.0.0.2"],        |
|    |               |                   |                   |            |                   | "VDU2":             |
|    |               |                   |                   |            |                   | ["10.0.0.4",        |
|    |               |                   |                   |            |                   | "10.0.0.5"]}        |
| 15 | vnf           | 9dd7b2f1-e91e-418 | ACTIVE            | CREATE     | 2016-09-21        | VNF status updated  |
|    |               | 3-bcbe-           |                   |            | 20:13:09          |                     |
|    |               | 34b80bdb18fb      |                   |            |                   |                     |
| 16 | vnf           | 9dd7b2f1-e91e-418 | PENDING_SCALE_OUT | SCALE      | 2016-09-21        |                     |
|    |               | 3-bcbe-           |                   |            | 20:23:58          |                     |
|    |               | 34b80bdb18fb      |                   |            |                   |                     |
| 17 | vnf           | 9dd7b2f1-e91e-418 | ACTIVE            | SCALE      | 2016-09-21        |                     |
|    |               | 3-bcbe-           |                   |            | 20:24:45          |                     |
|    |               | 34b80bdb18fb      |                   |            |                   |                     |
+----+---------------+-------------------+-------------------+------------+-------------------+---------------------+

2. The following command displays any reachability issues related to a VIM site. The sample output illustrates a VIM that is reachable. Note, the <resource_id> here is a VIM uuid.

tacker vim-events-list --resource_id <resource_id>

+----+---------------+---------------------+----------------+------------+---------------------+---------------+
| id | resource_type | resource_id         | resource_state | event_type | timestamp           | event_details |
+----+---------------+---------------------+----------------+------------+---------------------+---------------+
|  1 | vim           | d8c11a53-876c-454a- | PENDING        | CREATE     | 2016-09-20 23:07:42 |               |
|    |               | bad1-cb13ad057595   |                |            |                     |               |
|  2 | vim           | d8c11a53-876c-454a- | REACHABLE      | MONITOR    | 2016-09-20 23:07:42 |               |
|    |               | bad1-cb13ad057595   |                |            |                     |               |
+----+---------------+---------------------+----------------+------------+---------------------+---------------+

Miscellaneous events command examples:

1. List all events for all resources from the beginning

tacker events-list

+----+---------------+-----------------+----------------+------------+-----------------+-----------------+
| id | resource_type | resource_id     | resource_state | event_type | timestamp       | event_details   |
+----+---------------+-----------------+----------------+------------+-----------------+-----------------+
|  1 | vim           | c89e5d9d-6d55-4 | PENDING        | CREATE     | 2016-09-10      |                 |
|    |               | db1-bd67-30982f |                |            | 20:32:46        |                 |
|    |               | 01133e          |                |            |                 |                 |
|  2 | vim           | c89e5d9d-6d55-4 | REACHABLE      | MONITOR    | 2016-09-10      |                 |
|    |               | db1-bd67-30982f |                |            | 20:32:46        |                 |
|    |               | 01133e          |                |            |                 |                 |
|  3 | vnfd          | afc0c662-5117-4 | Not Applicable | CREATE     | 2016-09-14      |                 |
|    |               | 7a7-8088-02e9f8 |                |            | 05:17:30        |                 |
|    |               | a3532b          |                |            |                 |                 |
|  4 | vnf           | 52adaae4-36b5   | PENDING_CREATE | CREATE     | 2016-09-14      | VNF UUID        |
|    |               | -41cf-acb5-32ab |                |            | 17:49:24        | assigned.       |
|    |               | 8c109265        |                |            |                 |                 |
|  5 | vnf           | 52adaae4-36b5   | PENDING_CREATE | CREATE     | 2016-09-14      | Infra Instance  |
|    |               | -41cf-acb5-32ab |                |            | 17:49:51        | ID created:     |
|    |               | 8c109265        |                |            |                 | 046dcb04-318d-4 |
|    |               |                 |                |            |                 | ec9-8a23-19d9c1 |
|    |               |                 |                |            |                 | f8c21d and Mgmt |
|    |               |                 |                |            |                 | URL set:        |
|    |               |                 |                |            |                 | {"VDU1": "192.1 |
|    |               |                 |                |            |                 | 68.120.8"}      |
|  6 | vnf           | 52adaae4-36b5   | ACTIVE         | CREATE     | 2016-09-14      | VNF status      |
|    |               | -41cf-acb5-32ab |                |            | 17:49:51        | updated         |
|    |               | 8c109265        |                |            |                 |                 |
+----+---------------+-----------------+----------------+------------+-----------------+-----------------+

2. List all events for all resources given a certain event type

tacker events-list --event_type CREATE

+----+---------------+-----------------+----------------+------------+-----------------+-----------------+
| id | resource_type | resource_id     | resource_state | event_type | timestamp       | event_details   |
+----+---------------+-----------------+----------------+------------+-----------------+-----------------+
|  1 | vim           | c89e5d9d-6d55-4 | PENDING        | CREATE     | 2016-09-10      |                 |
|    |               | db1-bd67-30982f |                |            | 20:32:46        |                 |
|    |               | 01133e          |                |            |                 |                 |
|  3 | vnfd          | afc0c662-5117-4 | ACTIVE         | CREATE     | 2016-09-14      |                 |
|    |               | 7a7-8088-02e9f8 |                |            | 05:17:30        |                 |
|    |               | a3532b          |                |            |                 |                 |
|  4 | vnf           | 52adaae4-36b5   | PENDING_CREATE | CREATE     | 2016-09-14      | VNF UUID        |
|    |               | -41cf-acb5-32ab |                |            | 17:49:24        | assigned.       |
|    |               | 8c109265        |                |            |                 |                 |
|  5 | vnf           | 52adaae4-36b5   | PENDING_CREATE | CREATE     | 2016-09-14      | Infra Instance  |
|    |               | -41cf-acb5-32ab |                |            | 17:49:51        | ID created:     |
|    |               | 8c109265        |                |            |                 | 046dcb04-318d-4 |
|    |               |                 |                |            |                 | ec9-8a23-19d9c1 |
|    |               |                 |                |            |                 | f8c21d and Mgmt |
|    |               |                 |                |            |                 | URL set:        |
|    |               |                 |                |            |                 | {"VDU1": "192.1 |
|    |               |                 |                |            |                 | 68.120.8"}      |
|  6 | vnf           | 52adaae4-36b5   | ACTIVE         | CREATE     | 2016-09-14      | VNF status      |
|    |               | -41cf-acb5-32ab |                |            | 17:49:51        | updated         |
|    |               | 8c109265        |                |            |                 |                 |
+----+---------------+-----------------+----------------+------------+-----------------+-----------------+

3. List details for a specific event

tacker event-show 5

+----------------+------------------------------------------------------------------------------------------+
| Field          | Value                                                                                    |
+----------------+------------------------------------------------------------------------------------------+
| event_details  | Infra Instance ID created: 046dcb04-318d-4ec9-8a23-19d9c1f8c21d and Mgmt URL set:        |
|                | {"VDU1": "192.168.120.8"}                                                                |
| event_type     | CREATE                                                                                   |
| id             | 5                                                                                        |
| resource_id    | 52adaae4-36b5-41cf-acb5-32ab8c109265                                                     |
| resource_state | PENDING_CREATE                                                                           |
| resource_type  | vnf                                                                                      |
| timestamp      | 2016-09-14 17:49:51                                                                      |
+----------------+------------------------------------------------------------------------------------------+

Note for Tacker developers

If as a developer, you are creating new resources and would like to capture event information for resource operations such as create, update, delete, scale and monitor, you would need to :

• Import the module tacker.db.common_services.common_services_db to use the create_event() method for logging events.
• Make edits in the file tacker/plugins/common/constants.py if you would need to create new event types.