OpenStack Dalmatian : Designate 設定 (Control ノード)2024/10/18

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
+-----------+-----------+  +-----------+-----------+  +-----------+-----------+
|   [ dlp.srv.world ]   |  | [ network.srv.world ] |  |  [ node01.srv.world ] |
|     (Control Node)    |  |     (Network Node)    |  |     (Compute Node)    |
|                       |  |                       |  |                       |
|  MariaDB    RabbitMQ  |  |      Open vSwitch     |  |        Libvirt        |
|  Memcached  Nginx     |  |     Neutron Server    |  |      Nova Compute     |
|  Keystone   httpd     |  |      OVN-Northd       |  |      Open vSwitch     |
|  Glance     Nova API  |  |  Nginx  iSCSI Target  |  |   OVN Metadata Agent  |
|  Cinder API           |  |     Cinder Volume     |  |     OVN-Controller    |
|                       |  |   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  | 0b61bc880cd64b67946dd6352a138e30 |
| domain_id           | default                          |
| email               | None                             |
| enabled             | True                             |
| id                  | 9ade75d6f9b744ca9bb4d5026efbde56 |
| name                | designate                        |
| description         | None                             |
| 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                            |
+-------------+----------------------------------+
| id          | 79d41d136fbb4add908c97c9cde507f0 |
| name        | designate                        |
| type        | dns                              |
| enabled     | True                             |
| description | OpenStack DNS Service            |
+-------------+----------------------------------+

# Designate API ホストを定義

root@dlp ~(keystone)#

export designate_api=network.srv.world

# [designate] 用エンドポイント作成 (public)

root@dlp ~(keystone)#

openstack endpoint create --region RegionOne dns public https://$designate_api:9001/

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 9f4cfabcc93344c6864e42e724240d0c |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 79d41d136fbb4add908c97c9cde507f0 |
| service_name | designate                        |
| service_type | dns                              |
| url          | https://network.srv.world:9001/  |
+--------------+----------------------------------+

# [designate] 用エンドポイント作成 (internal)

root@dlp ~(keystone)#

openstack endpoint create --region RegionOne dns internal https://$designate_api:9001/

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 9746976b47ca44ceab376c1b4bc1f1b4 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 79d41d136fbb4add908c97c9cde507f0 |
| service_name | designate                        |
| service_type | dns                              |
| url          | https://network.srv.world:9001/  |
+--------------+----------------------------------+

# [designate] 用エンドポイント作成 (admin)

root@dlp ~(keystone)#

openstack endpoint create --region RegionOne dns admin https://$designate_api:9001/

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | abcb52c75dc3409985c202c89dc3a392 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 79d41d136fbb4add908c97c9cde507f0 |
| service_name | designate                        |
| service_type | dns                              |
| url          | https://network.srv.world: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 137
Server version: 10.11.8-MariaDB-0ubuntu0.24.04.1 Ubuntu 24.04

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 character set utf8mb3 collate utf8mb3_general_ci; 
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)]> exit 
Bye