OpenStack Epoxy : Cinder バックアップサービス2025/04/24 |
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Cinder が提供するブロックストレージのバックアップサービスを設定します。
当例ではバックアップ用ストレージのバックエンドとして NFS を利用します。
------------+--------------------------+--------------------------+------------
| | |
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/Backup | | OVN-Controller |
+-----------------------+ +-----------------------+ +-----------------------+
-----------+-------------------------------------------------------------------
eth0|10.0.0.35
+----------+-----------+
| [ nfs.srv.world ] |
| NFS Server |
+----------------------+
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| [1] |
こちらを参考にローカルネットワーク内に NFS サーバーを稼働させておきます。 |
| [2] | Storage ノードの設定です。 |
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root@network:~#
apt -y install cinder-backup nfs-common
root@network:~#
vi /etc/idmapd.conf # 5行目 : コメント解除して自ドメイン名に変更 Domain = srv.world
root@network:~#
vi /etc/cinder/cinder.conf # [DEFAULT] セクション内の任意の場所へ追記
backup_driver = cinder.backup.drivers.nfs.NFSBackupDriver
backup_mount_point_base = $state_path/backup_nfs backup_share = nfs.srv.world:/var/lib/cinder-backup systemctl restart cinder-backup root@network:~# chown -R cinder:cinder /var/lib/cinder/backup_nfs |
| [3] | 任意のユーザーで自身が所有するボリュームのバックアップを取得します。作業場所はどこでもよいですが、当例では Control ノード上で行います。 |
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ubuntu@dlp ~(keystone)$ openstack volume list +----------------------------------+----------+-----------+------+-------------+ | ID | Name | Status | Size | Attached to | +----------------------------------+----------+-----------+------+-------------+ | 21e46e02-3774-46bf-8d4b- | disk-nfs | available | 10 | | | 18e653aafafe | | | | | | a35b8081-835d-42f5-b267- | disk-lvm | available | 10 | | | 5f1c6a02bf5a | | | | | +----------------------------------+----------+-----------+------+-------------+ # [disk-nfs] のバックアップを [bk-disk-nfs] という名称で作成 ubuntu@dlp ~(keystone)$ openstack volume backup create --name bk-disk-nfs disk-nfs +-----------+--------------------------------------+ | Field | Value | +-----------+--------------------------------------+ | id | 9d2548a4-bbe1-4bcc-be61-6996306baa78 | | name | bk-disk-nfs | | volume_id | 21e46e02-3774-46bf-8d4b-18e653aafafe | +-----------+--------------------------------------+ # 作成中は [Status] が [creating] 状態 ubuntu@dlp ~(keystone)$ openstack volume backup list +-----------+-----------+-------------+----------+------+-------------+------------+ | ID | Name | Description | Status | Size | Incremental | Created At | +-----------+-----------+-------------+----------+------+-------------+------------+ | 9d2548a4- | bk-disk- | None | creating | 10 | False | 2025-04- | | bbe1- | nfs | | | | | 23T13:45:3 | | 4bcc-be61 | | | | | | 5.000000 | | -6996306b | | | | | | | | aa78 | | | | | | | +-----------+-----------+-------------+----------+------+-------------+------------+ # 作成完了すると [Status] が [available] となる ubuntu@dlp ~(keystone)$ openstack volume backup list +-----------+-----------+-------------+-----------+------+-------------+------------+ | ID | Name | Description | Status | Size | Incremental | Created At | +-----------+-----------+-------------+-----------+------+-------------+------------+ | 9d2548a4- | bk-disk- | None | available | 10 | False | 2025-04- | | bbe1- | nfs | | | | | 23T13:45:3 | | 4bcc-be61 | | | | | | 5.000000 | | -6996306b | | | | | | | | aa78 | | | | | | | +-----------+-----------+-------------+-----------+------+-------------+------------+ |
| [4] | バックアップ対象ボリュームのバックアップがすでに存在する場合、インクリメンタルバックアップが利用できます。 また、バックアップ対象のボリュームが特定のインスタンスにアタッチされている場合は、[--force] オプションを付加することでバックアップ実行可能です。 |
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ubuntu@dlp ~(keystone)$ openstack volume backup list +-----------+-----------+-------------+-----------+------+-------------+------------+ | ID | Name | Description | Status | Size | Incremental | Created At | +-----------+-----------+-------------+-----------+------+-------------+------------+ | 9d2548a4- | bk-disk- | None | available | 10 | False | 2025-04- | | bbe1- | nfs | | | | | 23T13:45:3 | | 4bcc-be61 | | | | | | 5.000000 | | -6996306b | | | | | | | | aa78 | | | | | | | +-----------+-----------+-------------+-----------+------+-------------+------------+ubuntu@dlp ~(keystone)$ openstack volume list +----------------------------------+----------+-----------+------+-------------+ | ID | Name | Status | Size | Attached to | +----------------------------------+----------+-----------+------+-------------+ | 21e46e02-3774-46bf-8d4b- | disk-nfs | available | 10 | | | 18e653aafafe | | | | | | a35b8081-835d-42f5-b267- | disk-lvm | available | 10 | | | 5f1c6a02bf5a | | | | | +----------------------------------+----------+-----------+------+-------------+ubuntu@dlp ~(keystone)$ openstack volume backup create --name bk-disk-nfs-01 --incremental --force disk-nfs +-----------+--------------------------------------+ | Field | Value | +-----------+--------------------------------------+ | id | 9ebb3a61-0c5f-4db2-9826-f75f67380f40 | | name | bk-disk-nfs-01 | | volume_id | 21e46e02-3774-46bf-8d4b-18e653aafafe | +-----------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack volume backup list +-----------+-----------+-------------+-----------+------+-------------+------------+ | ID | Name | Description | Status | Size | Incremental | Created At | +-----------+-----------+-------------+-----------+------+-------------+------------+ | 9ebb3a61- | bk-disk- | None | available | 10 | True | 2025-04- | | 0c5f- | nfs-01 | | | | | 23T13:48:4 | | 4db2- | | | | | | 2.000000 | | 9826- | | | | | | | | f75f67380 | | | | | | | | f40 | | | | | | | | 9d2548a4- | bk-disk- | None | available | 10 | False | 2025-04- | | bbe1- | nfs | | | | | 23T13:45:3 | | 4bcc-be61 | | | | | | 5.000000 | | -6996306b | | | | | | | | aa78 | | | | | | | +-----------+-----------+-------------+-----------+------+-------------+------------+ |
| [5] | バックアップボリュームのリストアです。 リストア時はリストア対象ボリュームがインスタンスからデタッチされている必要があります。 |
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ubuntu@dlp ~(keystone)$ openstack volume backup list +-----------+-----------+-------------+-----------+------+-------------+------------+ | ID | Name | Description | Status | Size | Incremental | Created At | +-----------+-----------+-------------+-----------+------+-------------+------------+ | 9ebb3a61- | bk-disk- | None | available | 10 | True | 2025-04- | | 0c5f- | nfs-01 | | | | | 23T13:48:4 | | 4db2- | | | | | | 2.000000 | | 9826- | | | | | | | | f75f67380 | | | | | | | | f40 | | | | | | | | 9d2548a4- | bk-disk- | None | available | 10 | False | 2025-04- | | bbe1- | nfs | | | | | 23T13:45:3 | | 4bcc-be61 | | | | | | 5.000000 | | -6996306b | | | | | | | | aa78 | | | | | | | +-----------+-----------+-------------+-----------+------+-------------+------------+ubuntu@dlp ~(keystone)$ openstack volume list +----------------------------------+----------+-----------+------+-------------+ | ID | Name | Status | Size | Attached to | +----------------------------------+----------+-----------+------+-------------+ | 21e46e02-3774-46bf-8d4b- | disk-nfs | available | 10 | | | 18e653aafafe | | | | | | a35b8081-835d-42f5-b267- | disk-lvm | available | 10 | | | 5f1c6a02bf5a | | | | | +----------------------------------+----------+-----------+------+-------------+ # リストア実行 ubuntu@dlp ~(keystone)$ openstack volume backup restore bk-disk-nfs-01 disk-nfs-restore +-------------+--------------------------------------+ | Field | Value | +-------------+--------------------------------------+ | id | 9ebb3a61-0c5f-4db2-9826-f75f67380f40 | | volume_id | 28ed1fa9-b631-458c-8ee1-84d62c793dc4 | | volume_name | disk-nfs-restore | +-------------+--------------------------------------+ # リストア中は [restoring-backup] ステータス ubuntu@dlp ~(keystone)$ openstack volume list +------------------+------------------+------------------+------+-------------+ | ID | Name | Status | Size | Attached to | +------------------+------------------+------------------+------+-------------+ | 28ed1fa9-b631- | disk-nfs-restore | restoring-backup | 10 | | | 458c-8ee1- | | | | | | 84d62c793dc4 | | | | | | 21e46e02-3774- | disk-nfs | available | 10 | | | 46bf-8d4b- | | | | | | 18e653aafafe | | | | | | a35b8081-835d- | disk-lvm | available | 10 | | | 42f5-b267- | | | | | | 5f1c6a02bf5a | | | | | +------------------+------------------+------------------+------+-------------+ # リストア完了すると [available] ステータスになる ubuntu@dlp ~(keystone)$ openstack volume list +----------------------+------------------+-----------+------+-------------+ | ID | Name | Status | Size | Attached to | +----------------------+------------------+-----------+------+-------------+ | 28ed1fa9-b631-458c- | disk-nfs-restore | available | 10 | | | 8ee1-84d62c793dc4 | | | | | | 21e46e02-3774-46bf- | disk-nfs | available | 10 | | | 8d4b-18e653aafafe | | | | | | a35b8081-835d-42f5- | disk-lvm | available | 10 | | | b267-5f1c6a02bf5a | | | | | +----------------------+------------------+-----------+------+-------------+ |
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