OpenStack Wallaby : Trove 利用方法2021/04/26 |
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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 ] | | [ Network 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 | | |
| | | 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)]# curl -O https://tarballs.opendev.org/openstack/trove/images/trove-victoria-guest-ubuntu-bionic.qcow2
[root@dlp ~(keystone)]#
[root@dlp ~(keystone)]# openstack image create Trove-Ubuntu --file=trove-victoria-guest-ubuntu-bionic.qcow2 --disk-format=qcow2 --container-format=bare --tag=trove --private
openstack image list +--------------------------------------+-----------------+--------+ | ID | Name | Status | +--------------------------------------+-----------------+--------+ | a7f1ad19-4d09-498c-8152-404bf626af98 | CentOS-Stream-8 | active | | 0d37783a-1ccb-49c2-a405-1e591309af15 | Trove-Ubuntu | active | +--------------------------------------+-----------------+--------+[root@dlp ~(keystone)]# openstack volume type create lvm-trove --private +-------------+--------------------------------------+ | Field | Value | +-------------+--------------------------------------+ | description | None | | id | 7e465984-22b6-484f-a5b8-11e6cd08e008 | | 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 # [0d37783a-***] 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 0d37783a-1ccb-49c2-a405-1e591309af15 mariadb 1" trove Datastore version '10.2' updated. [root@network ~]# su -s /bin/sh -c "trove-manage datastore_version_update mariadb 10.3 mariadb 0d37783a-1ccb-49c2-a405-1e591309af15 mariadb 1" trove Datastore version '10.3' updated. [root@network ~]# su -s /bin/sh -c "trove-manage datastore_version_update postgresql 10 postgresql 0d37783a-1ccb-49c2-a405-1e591309af15 postgresql 1" trove Datastore version '10' updated. [root@network ~]# su -s /bin/sh -c "trove-manage datastore_version_update postgresql 12 postgresql 0d37783a-1ccb-49c2-a405-1e591309af15 postgresql 1" trove Datastore version '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/python3.6/site-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/python3.6/site-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/python3.6/site-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/python3.6/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
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 | +--------------------------------------+------------+ | bab7c9e0-19c8-4b53-b7d4-09fd72a00e71 | postgresql | | fe60768b-6bad-417d-a9dd-428833d08175 | mariadb | +--------------------------------------+------------+[root@dlp ~(keystone)]# openstack datastore version list mariadb +--------------------------------------+------+---------+ | ID | Name | Version | +--------------------------------------+------+---------+ | a88507df-79a1-4d42-a28b-d9bb7c16bcaf | 10.2 | 10.2 | | d6c9204a-b2ed-4c33-965e-fed37ff9b25d | 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 | +--------------------------------------+----------------+--------------------------------------+------------------+ | c7799645-dd7a-4347-b341-58f995d2f83e | private-subnet | 0538d835-a80f-4a32-a460-4c2001bebc49 | 192.168.100.0/24 | | f9e1cbc7-0f73-4cae-960e-c3ca930d5ff6 | public-subnet | 2cc12720-71da-4e48-810d-ec5306278a8b | 10.0.0.0/24 | +--------------------------------------+----------------+--------------------------------------+------------------+[root@dlp ~(keystone)]# openstack network list +--------------------------------------+---------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+---------+--------------------------------------+ | 0538d835-a80f-4a32-a460-4c2001bebc49 | private | c7799645-dd7a-4347-b341-58f995d2f83e | | 2cc12720-71da-4e48-810d-ec5306278a8b | public | f9e1cbc7-0f73-4cae-960e-c3ca930d5ff6 | +--------------------------------------+---------+--------------------------------------+ # 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=0538d835-a80f-4a32-a460-4c2001bebc49 \ --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 | 2021-04-26T06:37:35 | | datastore | mariadb | | datastore_version | 10.3 | | datastore_version_number | 10.3 | | encrypted_rpc_messaging | True | | flavor | 0 | | id | e6d63bbd-c777-46db-9b6a-c442ce802457 | | name | MariaDB-103 | | operating_status | | | public | True | | region | RegionOne | | server_id | None | | service_status_updated | 2021-04-26T06:37:35 | | status | BUILD | | tenant_id | 5740dfa09acd480aaf87b406af946eaf | | updated | 2021-04-26T06:37:35 | | 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 | +--------------------------------------+-------------+-----------+-------------------+--------+------------------+--------+-----------+-----------+------+------+ | e6d63bbd-c777-46db-9b6a-c442ce802457 | 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
+--------------------------------------+-------------+-----------+-------------------+--------+------------------
| e6d63bbd-c777-46db-9b6a-c442ce802457 | MariaDB-103 | mariadb | 10.3 | ACTIVE | HEALTHY
+--------------------------------------+-------------+-----------+-------------------+--------+------------------
+--------+-------------------------------------------------------------------------------------------------+-----------+------+------+
| Public | Addresses | Flavor ID | Size | Role |
+--------+-------------------------------------------------------------------------------------------------+-----------+------+------+
| True | [{'address': '192.168.100.68', 'type': 'private'}, {'address': '10.0.0.250', 'type': 'public'}] | 0 | 10 | |
+--------+-------------------------------------------------------------------------------------------------+-----------+------+------+
# アクセスして動作確認 [root@dlp ~(keystone)]# mysql -h 10.0.0.250 -u serverworld -p Enter password: Your MariaDB connection id is 16 Server version: 10.3.28-MariaDB-1:10.3.28+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 | mariadb-103 | +---------------+-------------+ 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 e6d63bbd-c777-46db-9b6a-c442ce802457 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 | +--------------------------------------+------------+ | bab7c9e0-19c8-4b53-b7d4-09fd72a00e71 | postgresql | | fe60768b-6bad-417d-a9dd-428833d08175 | mariadb | +--------------------------------------+------------+[root@dlp ~(keystone)]# openstack datastore version list postgresql
+--------------------------------------+------+---------+
| ID | Name | Version |
+--------------------------------------+------+---------+
| 67acb71b-1946-4a16-8529-131b63eab180 | 10 | 10 |
| d6413803-0ffe-4e46-8f57-f516b9d60a9f | 12 | 12 |
+--------------------------------------+------+---------+
[root@dlp ~(keystone)]# openstack database instance create PostgreSQL-12 \
--flavor 0 \
--size 10 \
--nic net-id=0538d835-a80f-4a32-a460-4c2001bebc49 \
--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
+--------------------------+--------------------------------------+
| Field | Value |
+--------------------------+--------------------------------------+
| allowed_cidrs | ['10.0.0.0/24', '192.168.100.0/24'] |
| created | 2021-04-26T06:44:23 |
| datastore | postgresql |
| datastore_version | 12 |
| datastore_version_number | 12 |
| encrypted_rpc_messaging | True |
| flavor | 0 |
| id | 00efb42f-fa73-4022-8cd9-10610dfc4adf |
| name | PostgreSQL-12 |
| operating_status | |
| public | True |
| region | RegionOne |
| server_id | None |
| service_status_updated | 2021-04-26T06:44:23 |
| status | BUILD |
| tenant_id | 5740dfa09acd480aaf87b406af946eaf |
| updated | 2021-04-26T06:44:23 |
| volume | 10 |
| volume_id | None |
+--------------------------+--------------------------------------+
[root@dlp ~(keystone)]# openstack database instance list
+--------------------------------------+---------------+------------+-------------------+--------+------------------
| ID | Name | Datastore | Datastore Version | Status | Operating Status
+--------------------------------------+---------------+------------+-------------------+--------+------------------
| 00efb42f-fa73-4022-8cd9-10610dfc4adf | PostgreSQL-12 | postgresql | 12 | ACTIVE | HEALTHY
+--------------------------------------+---------------+------------+-------------------+--------+------------------
+--------+--------------------------------------------------------------------------------------------------+-----------+------+------+
| Public | Addresses | Flavor ID | Size | Role |
+--------+--------------------------------------------------------------------------------------------------+-----------+------+------+
| True | [{'address': '192.168.100.222', 'type': 'private'}, {'address': '10.0.0.216', 'type': 'public'}] | 0 | 10 | |
+--------+--------------------------------------------------------------------------------------------------+-----------+------+------+
[root@dlp ~(keystone)]# psql -h 10.0.0.216 -d MyDB -U serverworld -c "SELECT version();"
Password for user serverworld:
version
------------------------------------------------------------------------------------------------------------------
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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