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OpenStack Ussuri : Octavia 設定 (Control ノード)
2020/06/16
 
OpenStack Load Balancing as a Service(Octavia)をインストールします。
当例では以下のような環境を例に Octavia をインストールします。
------------+---------------------------+---------------------------+------------
            |                           |                           |
        eth0|10.0.0.30              eth0|10.0.0.50              eth0|10.0.0.51
+-----------+-----------+   +-----------+-----------+   +-----------+-----------+
|    [ Control Node ]   |   |    [ Network Node ]   |   |    [ Compute Node ]   |
|                       |   |                       |   |                       |
|  MariaDB    RabbitMQ  |   |        L2 Agent       |   |        Libvirt        |
|  Memcached  httpd     |   |        L3 Agent       |   |     Nova Compute      |
|  Keystone   Glance    |   |     Metadata Agent    |   |        L2 Agent       |
|  Nova API             |   |    Octavia Services   |   |                       |
|  Neutron Server       |   |                       |   |                       |
|  Metadata Agent       |   |                       |   |                       |
+-----------------------+   +-----------------------+   +-----------------------+

[1] Control ノードの Keystone に Octavia 用のユーザー等々を登録しておきます。
# [service] プロジェクト所属で [octavia] ユーザーを作成

root@dlp ~(keystone)#
openstack user create --domain default --project service --password servicepassword octavia

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | c0e098a54a4640caa9004fb8f500f554 |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 99ee6941396f477ba50505c3799b4918 |
| name                | octavia                          |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# [octavia] ユーザーを [admin] ロール に加える

root@dlp ~(keystone)#
openstack role add --project service --user octavia admin
# [octavia] 用サービスエントリ作成

root@dlp ~(keystone)#
openstack service create --name octavia --description "OpenStack LBaaS" load-balancer

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack LBaaS                  |
| enabled     | True                             |
| id          | c6c09dd29a9140f88e021006b1238f8a |
| name        | octavia                          |
| type        | load-balancer                    |
+-------------+----------------------------------+

# Octavia API ホストを定義

root@dlp ~(keystone)#
export octavia_api=10.0.0.50
# [octavia] 用エンドポイント作成 (public)

root@dlp ~(keystone)#
openstack endpoint create --region RegionOne load-balancer public http://$octavia_api:9876

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 7959bd2d974c4bfea25d5567fabf6de3 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | c6c09dd29a9140f88e021006b1238f8a |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | http://10.0.0.50:9876            |
+--------------+----------------------------------+

# [octavia] 用エンドポイント作成 (internal)

root@dlp ~(keystone)#
openstack endpoint create --region RegionOne load-balancer internal http://$octavia_api:9876

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 47d375c4ab074aeaabbbb7105d0ad728 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | c6c09dd29a9140f88e021006b1238f8a |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | http://10.0.0.50:9876            |
+--------------+----------------------------------+

# [octavia] 用エンドポイント作成 (admin)

root@dlp ~(keystone)#
openstack endpoint create --region RegionOne load-balancer admin http://$octavia_api:9876

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | cd00a4b240de41cfa1ef97238cd783ac |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | c6c09dd29a9140f88e021006b1238f8a |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | http://10.0.0.50:9876            |
+--------------+----------------------------------+
[2] Octavia 用のユーザーとデータベースを MariaDB に作成しておきます。
root@dlp ~(keystone)#
mysql

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 92
Server version: 10.3.22-MariaDB-1ubuntu1 Ubuntu 20.04

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> create database octavia; 
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> grant all privileges on octavia.* to octavia@'localhost' identified by 'password'; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> grant all privileges on octavia.* to octavia@'%' identified by 'password'; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit 
Bye
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