OpenStack Epoxy : Trove 利用方法2025/05/30 |
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OpenStack Database Service（Trove）の利用方法です。 当例では以下のような環境を例に Trove をインストールしています。
------------+--------------------------+--------------------------+------------
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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 |
| | | Trove Services | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Trove 用の VM イメージを公式サイトからダウンロードして Glance に登録します。 また、[trove.conf] で [cinder_volume_type] に設定したボリュームタイプを作成しておきます。 |
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[root@dlp ~(keystone)]# wget https://tarballs.opendev.org/openstack/trove/images/trove-master-guest-ubuntu-jammy.qcow2
[root@dlp ~(keystone)]#
[root@dlp ~(keystone)]# openstack image create Trove-Ubuntu --file=trove-master-guest-ubuntu-jammy.qcow2 --disk-format=qcow2 --container-format=bare --tag=trove --private
openstack image list +--------------------------------------+----------------+--------+ | ID | Name | Status | +--------------------------------------+----------------+--------+ | 8bbf2495-d1b0-4c12-89d3-bf6ca71b2a2d | CentOS-Stream9 | active | | 03500791-e50e-4053-ac9b-d8d4fa20d43b | Trove-Ubuntu | active | +--------------------------------------+----------------+--------+[root@dlp ~(keystone)]# openstack volume type create lvm-trove --private +-------------+--------------------------------------+ | Field | Value | +-------------+--------------------------------------+ | description | None | | id | bfbb8ad2-ef58-48aa-be58-67de3c9113c2 | | is_public | False | | name | lvm-trove | +-------------+--------------------------------------+ |
| [2] | Trove API が稼働するノード (当例では Network ノード) で、使用したいデータストアを登録しておきます。 当例では、MariaDB, PostgreSQL をデータストアとして登録します。 |
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# データストア登録 [root@network ~]# su -s /bin/bash trove -c "trove-manage datastore_update mariadb ''" Datastore 'mariadb' updated. [root@network ~]# su -s /bin/bash trove -c "trove-manage datastore_update postgresql ''" Datastore 'postgresql' updated. # 各データストアのバージョンを登録 # [03500791-***] の部分は [2] で作成した Trove 用のイメージ ID [root@network ~]# su -s /bin/sh -c "trove-manage datastore_version_update mariadb 10.5 mariadb 03500791-e50e-4053-ac9b-d8d4fa20d43b mariadb 1" trove Datastore version '10.5(10.5)' updated. [root@network ~]# su -s /bin/sh -c "trove-manage datastore_version_update postgresql 12 postgresql 03500791-e50e-4053-ac9b-d8d4fa20d43b postgresql 1" trove Datastore version '12(12)' updated. # 各データストアのバージョン用の設定パラメーターを登録 [root@network ~]# su -s /bin/bash trove -c "trove-manage db_load_datastore_config_parameters mariadb 10.5 /usr/lib/python3.9/site-packages/trove/templates/mariadb/validation-rules.json" Loading config parameters for datastore (mariadb) version (10.5) [root@network ~]# su -s /bin/bash trove -c "trove-manage db_load_datastore_config_parameters postgresql 12 /usr/lib/python3.9/site-packages/trove/templates/postgresql/validation-rules.json" Loading config parameters for datastore (postgresql) version (12) # VM イメージ用の [cloudinit] ファイル作成 [root@network ~]# mkdir /etc/trove/cloudinit
[root@network ~]#
vi /etc/trove/cloudinit/mariadb.cloudinit # 新規作成 # [CONTROLLER] に Trove API ホストを指定 #cloud-config runcmd: - echo 'CONTROLLER=network.srv.world' > /etc/trove/controller.conf - chmod 644 /etc/trove/controller.conf cp /etc/trove/cloudinit/mariadb.cloudinit /etc/trove/cloudinit/postgresql.cloudinit [root@network ~]# chown -R trove /etc/trove/cloudinit |
| [3] | Openstack システムを利用可能な任意のユーザーで認証して、任意のノードで、データベースインスタンスを作成します。 ちなみに、データベースインスタンスは VM イメージ上で Docker コンテナーとして起動します。 |
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[cent@dlp ~(keystone)]$ openstack datastore list +--------------------------------------+------------+ | ID | Name | +--------------------------------------+------------+ | c3323f77-996a-4f13-9478-425f317de93d | postgresql | | ac99eedd-6073-49bf-b6ca-a8c254c6c558 | mariadb | +--------------------------------------+------------+[cent@dlp ~(keystone)]$ openstack datastore version list mariadb +--------------------------------------+------+---------+ | ID | Name | Version | +--------------------------------------+------+---------+ | 4eb133d3-fb44-4173-90f5-5b1407d71fc8 | 10.5 | 10.5 | +--------------------------------------+------+---------+[cent@dlp ~(keystone)]$ openstack flavor list +----+-----------+-------+------+-----------+-------+-----------+ | ID | Name | RAM | Disk | Ephemeral | VCPUs | Is Public | +----+-----------+-------+------+-----------+-------+-----------+ | 1 | m1.tiny | 2048 | 10 | 0 | 1 | True | | 2 | m1.small | 4096 | 10 | 0 | 2 | True | | 3 | m1.medium | 8192 | 10 | 0 | 4 | True | | 4 | m1.large | 16384 | 10 | 0 | 8 | True | | 5 | m2.large | 16384 | 10 | 10 | 8 | True | +----+-----------+-------+------+-----------+-------+-----------+[cent@dlp ~(keystone)]$ openstack network list +--------------------------------------+---------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+---------+--------------------------------------+ | bd05d358-4e42-4bd5-93a3-4bf3cdb8382a | private | e98202e3-a16f-4262-94f1-3bfd5662253a | | da68b9d2-83b3-4723-8ff1-43561841698c | public | 79170337-cfa9-4df3-8dff-1202af9a8bba | +--------------------------------------+---------+--------------------------------------+ # データベースインスタンス作成 [cent@dlp ~(keystone)]$ openstack database instance create MariaDB-105 \ --flavor 2 \ --size 10 \ --nic net-id=bd05d358-4e42-4bd5-93a3-4bf3cdb8382a \ --databases MyDB --users serverworld:password \ --datastore mariadb --datastore-version 10.5 \ --is-public \ --allowed-cidr 10.0.0.0/24 \ --allowed-cidr 192.168.100.0/24 +--------------------------+--------------------------------------+ | Field | Value | +--------------------------+--------------------------------------+ | allowed_cidrs | ['10.0.0.0/24', '192.168.100.0/24'] | | created | 2025-05-30T00:38:54 | | datastore | mariadb | | datastore_version | 10.5 | | datastore_version_number | 10.5 | | flavor | 2 | | id | f8deb123-10a6-4568-a291-31fed089d349 | | name | MariaDB-105 | | operating_status | | | public | True | | region | RegionOne | | service_status_updated | 2025-05-30T00:38:54 | | status | BUILD | | updated | 2025-05-30T00:38:54 | | volume | 10 | +--------------------------+--------------------------------------+ # 作成中は [BUILD] ステータス [cent@dlp ~(keystone)]$ openstack database instance list +--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------+-----------+-----------+------+------+ | ID | Name | Datastore | Datastore Version | Status | Operating Status | Public | Addresses | Flavor ID | Size | Role | +--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------+-----------+-----------+------+------+ | f8deb123-10a6-4568-a291-31fed089d349 | MariaDB-105 | mariadb | 10.5 | BUILD | | True | | 2 | 10 | | +--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------+-----------+-----------+------+------+ # 作成が正常に完了すると [HEALTHY] ステータス [cent@dlp ~(keystone)]$ openstack database instance list
+--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------
| ID | Name | Datastore | Datastore Version | Status | Operating Status | Public
+--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------
| f8deb123-10a6-4568-a291-31fed089d349 | MariaDB-105 | mariadb | 10.5 | ACTIVE | HEALTHY | True
+--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
| Addresses | Flavor ID | Size | Role |
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
| [{'address': '192.168.100.123', 'type': 'private', 'network': 'bd05d358-4e42-4bd5-93a3-4bf3cdb8382a'}, {'address': '10.0.0.226', 'type': 'public'}] | 2 | 10 | |
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
# アクセスして動作確認 [cent@dlp ~(keystone)]$ mysql -h 10.0.0.226 -u serverworld -p -e "show variables like 'hostname'; show databases;" Enter password: +---------------+--------------+ | Variable_name | Value | +---------------+--------------+ | hostname | 7b1428cafd0c | +---------------+--------------+ +--------------------+ | Database | +--------------------+ | MyDB | | information_schema | +--------------------+ # データベースインスタンスを削除する場合は以下 [cent@dlp ~(keystone)]$ openstack database instance delete MariaDB-105 Request to delete database instance f8deb123-10a6-4568-a291-31fed089d349 has been accepted. |
| [4] | PostgreSQL を起動する場合の設定です。 |
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[cent@dlp ~(keystone)]$ openstack datastore list +--------------------------------------+------------+ | ID | Name | +--------------------------------------+------------+ | c3323f77-996a-4f13-9478-425f317de93d | postgresql | | ac99eedd-6073-49bf-b6ca-a8c254c6c558 | mariadb | +--------------------------------------+------------+[cent@dlp ~(keystone)]$ openstack datastore version list postgresql
+--------------------------------------+------+---------+
| ID | Name | Version |
+--------------------------------------+------+---------+
| 44c6563c-28d4-46eb-881b-161523e8e8fe | 12 | 12 |
+--------------------------------------+------+---------+
[cent@dlp ~(keystone)]$ openstack database instance create PostgreSQL-12 \
--flavor 2 \
--size 10 \
--nic net-id=bd05d358-4e42-4bd5-93a3-4bf3cdb8382a \
--databases MyDB --users serverworld:password \
--datastore postgresql --datastore-version 12 \
--datastore-version-number 12 --is-public \
--is-public \
--allowed-cidr 10.0.0.0/24 \
--allowed-cidr 192.168.100.0/24
[cent@dlp ~(keystone)]$ openstack database instance list
+--------------------------------------+---------------+------------+-------------------+--------+------------------+--------
| ID | Name | Datastore | Datastore Version | Status | Operating Status | Public
+--------------------------------------+---------------+------------+-------------------+--------+------------------+--------
| 94d919a1-d831-4b4a-9c9a-b38ccefdc12d | PostgreSQL-12 | postgresql | 12 | ACTIVE | HEALTHY | True
+--------------------------------------+---------------+------------+-------------------+--------+------------------+--------
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
| Addresses | Flavor ID | Size | Role |
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
| [{'address': '192.168.100.220', 'type': 'private', 'network': 'bd05d358-4e42-4bd5-93a3-4bf3cdb8382a'}, {'address': '10.0.0.204', 'type': 'public'}] | 2 | 10 | |
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
[cent@dlp ~(keystone)]$ psql -h 10.0.0.204 -d MyDB -U serverworld -c "SELECT version();"
Password for user serverworld:
version
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PostgreSQL 12.22 (Debian 12.22-1.pgdg120+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14) 12.2.0, 64-bit
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