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OpenStack Zed : Ceilometer 利用方法 (Glance)2023/06/30

 
OpenStack Telemetry Service (Ceilometer) の利用方法です。
当例では以下のような環境を例に Ceilometer サービスをインストールしています。
------------+--------------------------+--------------------------+------------
            |                          |                          |
        eth0|10.0.0.30             eth0|10.0.0.50             eth0|10.0.0.51
+-----------+-----------+  +-----------+-----------+  +-----------+-----------+
|   [ dlp.srv.world ]   |  | [ network.srv.world ] |  |  [ node01.srv.world ] |
|     (Control Node)    |  |     (Network Node)    |  |     (Compute Node)    |
|                       |  |                       |  |                       |
|  MariaDB    RabbitMQ  |  |  Neutron L2/L3 Agent  |  |        Libvirt        |
|  Memcached  Nginx     |  |   Neutron Metadata    |  |      Nova Compute     |
|  Keystone   httpd     |  |     Open vSwitch      |  |    Neutron L2 Agent   |
|  Glance     Nova API  |  |     iSCSI Target      |  |      Open vSwitch     |
|  Neutron Server       |  |     Cinder Volume     |  |   Ceilometer Compute  |
|  Neutron Metadata     |  |     httpd  Gnocchi    |  |                       |
|  Cinder API           |  |   Ceilometer Central  |  |                       |
+-----------------------+  +-----------------------+  +-----------------------+

[1] Image サービスの各種データ収集を有効にするには、Glance を以下のように設定します。
root@dlp ~(keystone)#
vi /etc/glance/glance-api.conf
# 最終行へ追記

[oslo_messaging_notifications]
driver = messagingv2
# RabbitMQ 接続情報
transport_url = rabbit://openstack:password@dlp.srv.world
root@dlp ~(keystone)#
systemctl restart glance-api

[2] イメージを追加等した場合に収集されるデータの表示例です。
# リソース一覧

root@dlp ~(keystone)#
openstack metric resource list

+--------------------------------------+----------------------------+----------------------------------
| id                                   | type                       | project_id                       
+--------------------------------------+----------------------------+----------------------------------
| c3a4a792-a7ac-41bd-8c93-7fd162016f22 | instance                   | 1c2f5dc8c4f9494fbaaa4217c8e35... 
| 88e37527-710f-53a8-9bb3-4cf76791b60b | instance_disk              | 1c2f5dc8c4f9494fbaaa4217c8e35... 
| 18c74205-a37f-5ea3-b7db-c342b76a24c2 | instance_network_interface | 1c2f5dc8c4f9494fbaaa4217c8e35... 
+--------------------------------------+----------------------------+----------------------------------

root@dlp ~(keystone)#
openstack image list

+--------------------------------------+----------+--------+
| ID                                   | Name     | Status |
+--------------------------------------+----------+--------+
| 3a660af6-3f41-4c0f-b2a8-55127dfc3c60 | Debian12 | active |
+--------------------------------------+----------+--------+

# テストとしてイメージダウンロード

root@dlp ~(keystone)#
openstack image save --file debian12.qcow2 Debian12

# テストとしてイメージ登録

root@dlp ~(keystone)#
openstack image create "Debian12-2" --file debian12.qcow2 --disk-format qcow2 --container-format bare --public

# リソース一覧

root@dlp ~(keystone)#
openstack metric resource list

+--------------------------------------+----------------------------+----------------------------------
| id                                   | type                       | project_id                       
+--------------------------------------+----------------------------+----------------------------------
| c3a4a792-a7ac-41bd-8c93-7fd162016f22 | instance                   | 1c2f5dc8c4f9494fbaaa4217c8e35... 
| 88e37527-710f-53a8-9bb3-4cf76791b60b | instance_disk              | 1c2f5dc8c4f9494fbaaa4217c8e35... 
| 18c74205-a37f-5ea3-b7db-c342b76a24c2 | instance_network_interface | 1c2f5dc8c4f9494fbaaa4217c8e35... 
| 1857ec36-cc70-4cd8-95c4-d15e6aa39328 | image                      | 757625ae78404e38a8cfdd7c6d262... 
+--------------------------------------+----------------------------+----------------------------------

# [image] リソース詳細

root@dlp ~(keystone)#
openstack metric resource show 1857ec36-cc70-4cd8-95c4-d15e6aa39328

+-----------------------+-------------------------------------------------------------------+
| Field                 | Value                                                             |
+-----------------------+-------------------------------------------------------------------+
| created_by_project_id | d8b09d86ed7743039f92b2e542ea26c1                                  |
| created_by_user_id    | 89f390200afd4423bd9322787a94efa8                                  |
| creator               | 89f390200afd4423bd9322787a94efa8:d8b09d86ed7743039f92b2e542ea26c1 |
| ended_at              | None                                                              |
| id                    | 1857ec36-cc70-4cd8-95c4-d15e6aa39328                              |
| metrics               | image.size: ec497f00-0546-4ea8-a5af-66fa1ee785c3                  |
| original_resource_id  | 1857ec36-cc70-4cd8-95c4-d15e6aa39328                              |
| project_id            | 757625ae78404e38a8cfdd7c6d262860                                  |
| revision_end          | None                                                              |
| revision_start        | 2023-06-30T02:41:17.379802+00:00                                  |
| started_at            | 2023-06-30T02:41:17.379794+00:00                                  |
| type                  | image                                                             |
| user_id               | None                                                              |
+-----------------------+-------------------------------------------------------------------+

# イメージ サイズ データ

root@dlp ~(keystone)#
openstack metric measures show ec497f00-0546-4ea8-a5af-66fa1ee785c3

+---------------------------+-------------+--------------+
| timestamp                 | granularity |        value |
+---------------------------+-------------+--------------+
| 2023-06-29T21:40:00-05:00 |       300.0 | 1938882560.0 |
+---------------------------+-------------+--------------+
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