Ubuntu 20.04
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OpenStack Wallaby : Designate 設定 (Control ノード)
2021/04/21
 
OpenStack DNS Service(Designate)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 Designate をインストールします。
Network ノードに Designate サービス一式をインストールし、バックエンドの DNS サービスとして BIND 9 を設定します。
BIND 9 以外にも PowerDNS などもバックエンド DNS として利用可能です。
------------+---------------------------+---------------------------+------------
            |                           |                           |
        eth0|10.0.0.30              eth0|10.0.0.50              eth0|10.0.0.51
+-----------+-----------+   +-----------+-----------+   +-----------+-----------+
|    [ Control Node ]   |   |    [ Storage Node ]   |   |    [ Compute Node ]   |
|                       |   |                       |   |                       |
|  MariaDB    RabbitMQ  |   |      Open vSwitch     |   |        Libvirt        |
|  Memcached  httpd     |   |     Neutron Server    |   |     Nova Compute      |
|  Keystone   Glance    |   |       OVN-Northd      |   |      Open vSwitch     |
|  Nova API             |   |     Cinder Volume     |   |   OVN Metadata Agent  |
|  Cinder API           |   |     iSCSI Target      |   |     OVN-Controller    |
|                       |   |    Heat API/Engine    |   |                       |
|                       |   |   Designate Services  |   |                       |
+-----------------------+   +-----------------------+   +-----------------------+

[1] Control ノードの Keystone に Designate 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 [designate] ユーザーを作成

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

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | b1f2e1bdf6fb4e03bb30ef3b90764d3b |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 36ed2ea730244eff86f65063a0fef7eb |
| name                | designate                        |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# [designate] ユーザーを [admin] ロール に加える

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

root@dlp ~(keystone)#
openstack service create --name designate --description "OpenStack DNS Service" dns

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack DNS Service            |
| enabled     | True                             |
| id          | 8f686d6a513a471f9b6ce502ef29cb8c |
| name        | designate                        |
| type        | dns                              |
+-------------+----------------------------------+

# Designate API ホストを定義

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

root@dlp ~(keystone)#
openstack endpoint create --region RegionOne dns public http://$designate_api:9001/

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 36dea6a1602147a3b9752bd00650879c |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8f686d6a513a471f9b6ce502ef29cb8c |
| service_name | designate                        |
| service_type | dns                              |
| url          | http://10.0.0.50:9001/           |
+--------------+----------------------------------+

# [designate] 用エンドポイント作成 (internal)

root@dlp ~(keystone)#
openstack endpoint create --region RegionOne dns internal http://$designate_api:9001/

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | f046bebbf85f40a3a8dc951563170d33 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8f686d6a513a471f9b6ce502ef29cb8c |
| service_name | designate                        |
| service_type | dns                              |
| url          | http://10.0.0.50:9001/           |
+--------------+----------------------------------+

# [designate] 用エンドポイント作成 (admin)

root@dlp ~(keystone)#
openstack endpoint create --region RegionOne dns admin http://$designate_api:9001/

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 445ebb1ce26149879ae120b850bbf4b6 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8f686d6a513a471f9b6ce502ef29cb8c |
| service_name | designate                        |
| service_type | dns                              |
| url          | http://10.0.0.50:9001/           |
+--------------+----------------------------------+
[2] Designate 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 101
Server version: 10.3.25-MariaDB-0ubuntu0.20.04.1 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 designate; 
Query OK, 1 row affected (0.00 sec)

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

MariaDB [(none)]> grant all privileges on designate.* to designate@'%' 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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