OpenStack Xena : Trove 利用方法2021/10/08 |
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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
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ 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 | | Heat API/Engine | | 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-bionic.qcow2
root@dlp ~(keystone)#
root@dlp ~(keystone)# openstack image create Trove-Ubuntu --file=trove-master-guest-ubuntu-bionic.qcow2 --disk-format=qcow2 --container-format=bare --tag=trove --private
openstack image list +--------------------------------------+--------------+--------+ | ID | Name | Status | +--------------------------------------+--------------+--------+ | 8fb56d4f-c7b5-4785-afd0-260a64eec462 | Trove-Ubuntu | active | | ba8781c7-85ef-4872-957e-2c27b55275b2 | Ubuntu2004 | active | +--------------------------------------+--------------+--------+[root@dlp ~(keystone)]# openstack volume type create lvm-trove --private +-------------+--------------------------------------+ | Field | Value | +-------------+--------------------------------------+ | description | None | | id | 54663030-1415-4182-a419-5292b4211d4c | | 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 # [8fb56d4f-***] 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 10.2 mariadb 8fb56d4f-c7b5-4785-afd0-260a64eec462 mariadb 1" trove Datastore version '10.2(10.2)' updated. root@network:~# su -s /bin/sh -c "trove-manage datastore_version_update mariadb 10.3 mariadb 8fb56d4f-c7b5-4785-afd0-260a64eec462 mariadb 1" trove Datastore version '10.3(10.3)' updated. root@network:~# su -s /bin/sh -c "trove-manage datastore_version_update postgresql 10 postgresql 8fb56d4f-c7b5-4785-afd0-260a64eec462 postgresql 1" trove Datastore version '10(10)' updated. root@network:~# su -s /bin/sh -c "trove-manage datastore_version_update postgresql 12 postgresql 8fb56d4f-c7b5-4785-afd0-260a64eec462 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 10.2 /usr/lib/python3/dist-packages/trove/templates/mariadb/validation-rules.json" Loading config parameters for datastore (mariadb) version (10.2) root@network:~# su -s /bin/bash trove -c "trove-manage db_load_datastore_config_parameters mariadb 10.3 /usr/lib/python3/dist-packages/trove/templates/mariadb/validation-rules.json" Loading config parameters for datastore (mariadb) version (10.3) root@network:~# su -s /bin/bash trove -c "trove-manage db_load_datastore_config_parameters postgresql 10 /usr/lib/python3/dist-packages/trove/templates/postgresql/validation-rules.json" Loading config parameters for datastore (postgresql) version (10) root@network:~# su -s /bin/bash trove -c "trove-manage db_load_datastore_config_parameters postgresql 12 /usr/lib/python3/dist-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
write_files:
- path: /etc/trove/controller.conf
content: |
CONTROLLER=10.0.0.50
runcmd:
- 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] | 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。 例として、[admin] ユーザーで MariaDB データベースインスタンスを作成します。 (デフォルトポリシーでは [admin] ユーザーのみがインスタンス作成可) 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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root@dlp ~(keystone)# openstack datastore list +--------------------------------------+------------+ | ID | Name | +--------------------------------------+------------+ | 0f247ec5-29e9-4458-8b47-c056386ebf3b | mariadb | | 55237ed4-eeec-4907-b800-6d8137cace8e | postgresql | +--------------------------------------+------------+root@dlp ~(keystone)# openstack datastore version list mariadb +--------------------------------------+------+---------+ | ID | Name | Version | +--------------------------------------+------+---------+ | 3ebbf164-a2be-4db1-965b-649802f355e1 | 10.2 | 10.2 | | 655195cb-ec2e-42e6-b09e-370e0bd5f3da | 10.3 | 10.3 | +--------------------------------------+------+---------+root@dlp ~(keystone)# openstack flavor list +----+----------+------+------+-----------+-------+-----------+ | ID | Name | RAM | Disk | Ephemeral | VCPUs | Is Public | +----+----------+------+------+-----------+-------+-----------+ | 0 | m1.small | 2048 | 10 | 0 | 1 | True | +----+----------+------+------+-----------+-------+-----------+root@dlp ~(keystone)# openstack subnet list +--------------------------------------+----------------+--------------------------------------+------------------+ | ID | Name | Network | Subnet | +--------------------------------------+----------------+--------------------------------------+------------------+ | 694a93ec-762f-4c2e-b8f3-4f5aa72b631e | public-subnet | 35816d4c-fa30-4901-8aa5-3749970fa706 | 10.0.0.0/24 | | 77ab8a8b-9cca-4f4a-90c6-a61f8a58f08d | private-subnet | a5d44a8a-4980-4c19-a53a-26af6aabd732 | 192.168.100.0/24 | +--------------------------------------+----------------+--------------------------------------+------------------+root@dlp ~(keystone)# openstack network list +--------------------------------------+---------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+---------+--------------------------------------+ | 35816d4c-fa30-4901-8aa5-3749970fa706 | public | 694a93ec-762f-4c2e-b8f3-4f5aa72b631e | | a5d44a8a-4980-4c19-a53a-26af6aabd732 | private | 77ab8a8b-9cca-4f4a-90c6-a61f8a58f08d | +--------------------------------------+---------+--------------------------------------+ # データベースインスタンス作成 root@dlp ~(keystone)# openstack database instance create MariaDB-103 \ --flavor 0 \ --size 10 \ --nic net-id=a5d44a8a-4980-4c19-a53a-26af6aabd732 \ --databases MyDB --users serverworld:password \ --datastore mariadb --datastore-version 10.3 \ --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 | 2021-10-08T06:26:19 | | datastore | mariadb | | datastore_version | 10.3 | | datastore_version_number | 10.3 | | encrypted_rpc_messaging | True | | flavor | 0 | | id | 43a6e4a3-d7e6-4807-99d5-2f3d7964caee | | name | MariaDB-103 | | operating_status | | | public | True | | region | RegionOne | | server_id | None | | service_status_updated | 2021-10-08T06:26:19 | | status | BUILD | | tenant_id | f4431102f2d9415590e3ac11c616858a | | updated | 2021-10-08T06:26:19 | | volume | 10 | | volume_id | None | +--------------------------+--------------------------------------+ # 作成中は [BUILD] ステータス root@dlp ~(keystone)# openstack database instance list +--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------+-----------+-----------+------+------+ | ID | Name | Datastore | Datastore Version | Status | Operating Status | Public | Addresses | Flavor ID | Size | Role | +--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------+-----------+-----------+------+------+ | 43a6e4a3-d7e6-4807-99d5-2f3d7964caee | MariaDB-103 | mariadb | 10.3 | BUILD | | True | | 0 | 10 | | +--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------+-----------+-----------+------+------+ # 作成が正常に完了すると [HEALTHY] ステータス root@dlp ~(keystone)# openstack database instance list
+--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------
| ID | Name | Datastore | Datastore Version | Status | Operating Status | Public
+--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------
| 43a6e4a3-d7e6-4807-99d5-2f3d7964caee | MariaDB-103 | mariadb | 10.3 | ACTIVE | HEALTHY | True
+--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------
+---------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
| Addresses | Flavor ID | Size | Role |
+---------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
| [{'address': '192.168.100.7', 'type': 'private', 'network': 'a5d44a8a-4980-4c19-a53a-26af6aabd732'}, {'address': '10.0.0.201', 'type': 'public'}] | 0 | 10 | |
+---------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
# アクセスして動作確認 root@dlp ~(keystone)# mysql -h 10.0.0.201 -u serverworld -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 21 Server version: 10.3.31-MariaDB-1:10.3.31+maria~focal mariadb.org binary distribution 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)]> show variables like 'hostname'; +---------------+--------------+ | Variable_name | Value | +---------------+--------------+ | hostname | 33633c23a2af | +---------------+--------------+ 1 row in set (0.003 sec) MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | MyDB | | information_schema | +--------------------+ 2 rows in set (0.003 sec) MariaDB [(none)]> exit Bye # データベースインスタンスを削除する場合は以下 root@dlp ~(keystone)# openstack database instance delete MariaDB-103 Request to delete database instance 43a6e4a3-d7e6-4807-99d5-2f3d7964caee has been accepted. |
| [4] | PostgreSQL を起動する場合の設定です。 |
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root@dlp ~(keystone)# openstack datastore list +--------------------------------------+------------+ | ID | Name | +--------------------------------------+------------+ | 0f247ec5-29e9-4458-8b47-c056386ebf3b | mariadb | | 55237ed4-eeec-4907-b800-6d8137cace8e | postgresql | +--------------------------------------+------------+root@dlp ~(keystone)# openstack datastore version list postgresql
+--------------------------------------+------+---------+
| ID | Name | Version |
+--------------------------------------+------+---------+
| 0ee64425-a2f2-4473-b272-ecd3d1cc8073 | 10 | 10 |
| ed0d745a-3cc7-465d-b228-4a01992a51be | 12 | 12 |
+--------------------------------------+------+---------+
root@dlp ~(keystone)# openstack database instance create PostgreSQL-12 \
--flavor 0 \
--size 10 \
--nic net-id=a5d44a8a-4980-4c19-a53a-26af6aabd732 \
--databases MyDB --users serverworld:password \
--datastore postgresql --datastore-version 12 \
--is-public \
--allowed-cidr 10.0.0.0/24 \
--allowed-cidr 192.168.100.0/24
root@dlp ~(keystone)# openstack database instance list
+--------------------------------------+---------------+------------+-------------------+--------+------------------+--------
| ID | Name | Datastore | Datastore Version | Status | Operating Status | Public
+--------------------------------------+---------------+------------+-------------------+--------+------------------+--------
| 1a99b179-9d12-45f5-b071-30d25bf38d63 | PostgreSQL-12 | postgresql | 12 | ACTIVE | HEALTHY | True
+--------------------------------------+---------------+------------+-------------------+--------+------------------+--------
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
| Addresses | Flavor ID | Size | Role |
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
| [{'address': '192.168.100.231', 'type': 'private', 'network': 'a5d44a8a-4980-4c19-a53a-26af6aabd732'}, {'address': '10.0.0.232', 'type': 'public'}] | 0 | 10 | |
+-----------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------+------+
root@dlp ~(keystone)# psql -h 10.0.0.232 -d MyDB -U serverworld -c "SELECT version();"
Password for user serverworld:
version
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PostgreSQL 12.6 (Debian 12.6-1.pgdg100+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 8.3.0-6) 8.3.0, 64-bit
(1 row)
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