Ubuntu 18.04
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OpenStack Stein : Manila 利用方法#1
2019/04/16
 
OpenStack Shared File System(Manila)による共有の設定です。
当例では以下のような環境を例に Manila をインストールして設定しています。
例として、Storage ノードのローカルブロックデバイスを LVM バックエンドの共有ストレージとして設定し、インスタンスから利用できるようにします。 よって、前提として Storage ノードに空きブロックデバイスがある必要があります。
------------+---------------------------+---------------------------+------------
            |                           |                           |
        eth0|10.0.0.30              eth0|10.0.0.50              eth0|10.0.0.51
+-----------+-----------+   +-----------+-----------+   +-----------+-----------+
|    [ Control Node ]   |   |    [ Storage Node ]   |   |    [ Compute Node ]   |
|                       |   |                       |   |                       |
|  MariaDB    RabbitMQ  |   |                       |   |        Libvirt        |
|  Memcached  httpd     |   |        L2 Agent       |   |     Nova Compute      |
|  Keystone   Glance    |   |        L3 Agent       |   |        L2 Agent       |
|  Nova API             |   |     Metadata Agent    |   |                       |
|  Neutron Server       |   |      Manila Share     |   |                       |
|  Metadata Agent       |   |                       |   |                       |
|  Manila API           |   |                       |   |                       |
+-----------------------+   +-----------------------+   +-----------------------+

[1] Storage ノードの設定です。
root@storage:~#
apt -y install lvm2 nfs-kernel-server
# 空きデバイスに Manila用ボリューム作成

root@storage:~#
pvcreate /dev/sdb1

  Physical volume "/dev/sdb1" successfully created
root@storage:~#
vgcreate manila-volumes /dev/sdb1

  Volume group "manila-volumes" successfully created
root@storage:~#
vi /etc/manila/manila.conf
# [DEFAULT] セクション内の任意の場所へ追記

enabled_share_backends = lvm
# 最終行へ追記

[lvm]
share_backend_name = LVM
share_driver = manila.share.drivers.lvm.LVMShareDriver
driver_handles_share_servers = False
lvm_share_volume_group = manila-volumes
lvm_share_export_ip = 10.0.0.50
root@storage:~#
systemctl restart manila-share nfs-server

root@storage:~#
systemctl enable manila-share nfs-server
[2] デフォルトの共有タイプを作成します。作業は、どこでもよいですが、当例ではコントロールノード上で行います。
root@dlp ~(keystone)#
manila type-create default_share_type False

+----------------------+--------------------------------------+
| Property             | Value                                |
+----------------------+--------------------------------------+
| required_extra_specs | driver_handles_share_servers : False |
| Name                 | default_share_type                   |
| Visibility           | public                               |
| is_default           | YES                                  |
| ID                   | ff66d673-2f23-4f98-b69a-56088ba4af37 |
| optional_extra_specs |                                      |
| Description          | None                                 |
+----------------------+--------------------------------------+

root@dlp ~(keystone)#
manila type-list

+--------------------------------------+--------------------+------------+------------+--------------------------------------+----------------------+-------------+
| ID                                   | Name               | visibility | is_default | required_extra_specs                 | optional_extra_specs | Description |
+--------------------------------------+--------------------+------------+------------+--------------------------------------+----------------------+-------------+
| ff66d673-2f23-4f98-b69a-56088ba4af37 | default_share_type | public     | YES        | driver_handles_share_servers : False |                      | None        |
+--------------------------------------+--------------------+------------+------------+--------------------------------------+----------------------+-------------+
[3] 共有を作成して自身が所有するインスタンスで利用したい任意のユーザーで、NFS 共有を作成します。
ubuntu@dlp ~(keystone)$
manila create NFS 10 --name share01

+---------------------------------------+--------------------------------------+
| Property                              | Value                                |
+---------------------------------------+--------------------------------------+
| status                                | creating                             |
| share_type_name                       | default_share_type                   |
| description                           | None                                 |
| availability_zone                     | None                                 |
| share_network_id                      | None                                 |
| share_group_id                        | None                                 |
| revert_to_snapshot_support            | False                                |
| access_rules_status                   | active                               |
| snapshot_id                           | None                                 |
| create_share_from_snapshot_support    | False                                |
| is_public                             | False                                |
| task_state                            | None                                 |
| snapshot_support                      | False                                |
| id                                    | f3768916-e3cb-41e4-bf56-a36376e52788 |
| size                                  | 10                                   |
| source_share_group_snapshot_member_id | None                                 |
| user_id                               | 5ed13a6b898b412383faf11ab2099a66     |
| name                                  | share01                              |
| share_type                            | ff66d673-2f23-4f98-b69a-56088ba4af37 |
| has_replicas                          | False                                |
| replication_type                      | None                                 |
| created_at                            | 2019-04-16T05:59:10.000000           |
| share_proto                           | NFS                                  |
| mount_snapshot_support                | False                                |
| project_id                            | ff03eefa265b423aa3375acb46a8e4e0     |
| metadata                              | {}                                   |
+---------------------------------------+--------------------------------------+

# Status が available になれば作成完了

ubuntu@dlp ~(keystone)$
manila list

+--------------------------------------+---------+------+-------------+-----------+-----------+--------------------+------+-------------------+
| ID                                   | Name    | Size | Share Proto | Status    | Is Public | Share Type Name    | Host | Availability Zone |
+--------------------------------------+---------+------+-------------+-----------+-----------+--------------------+------+-------------------+
| f3768916-e3cb-41e4-bf56-a36376e52788 | share01 | 10   | NFS         | available | False     | default_share_type |      | nova              |
+--------------------------------------+---------+------+-------------+-----------+-----------+--------------------+------+-------------------+

[4] 以上で、共有を作成したユーザーが所有するインスタンスから Manila の共有サービスを利用することができます。
ubuntu@dlp ~(keystone)$
openstack server list

+--------------------------------------+-------------+---------+-------------------------------------+------------+----------+
| ID                                   | Name        | Status  | Networks                            | Image      | Flavor   |
+--------------------------------------+-------------+---------+-------------------------------------+------------+----------+
| c714d070-f035-42b8-9660-999088da37b1 | Ubuntu_1804 | SHUTOFF | int_net=192.168.100.136, 10.0.0.202 | Ubuntu1804 | m1.small |
+--------------------------------------+-------------+---------+-------------------------------------+------------+----------+

# アクセス許可の設定 (IP はインスタンスの IPアドレス または インスタンスが属するサブネットを指定)

ubuntu@dlp ~(keystone)$
manila access-allow share01 ip 10.0.0.0/24 --access-level rw

+--------------+--------------------------------------+
| Property     | Value                                |
+--------------+--------------------------------------+
| access_key   | None                                 |
| share_id     | f3768916-e3cb-41e4-bf56-a36376e52788 |
| created_at   | 2019-04-16T06:03:10.000000           |
| updated_at   | None                                 |
| access_type  | ip                                   |
| access_to    | 10.0.0.0/24                          |
| access_level | rw                                   |
| state        | queued_to_apply                      |
| id           | b53268fc-ccd6-4deb-8e7d-6dd405fb4c8c |
| metadata     | {}                                   |
+--------------+--------------------------------------+

# State が active であれば問題なし

ubuntu@dlp ~(keystone)$
manila access-list share01

+--------------------------------------+-------------+-------------+--------------+--------+------------+----------------------------+------------+
| id                                   | access_type | access_to   | access_level | state  | access_key | created_at                 | updated_at |
+--------------------------------------+-------------+-------------+--------------+--------+------------+----------------------------+------------+
| b53268fc-ccd6-4deb-8e7d-6dd405fb4c8c | ip          | 10.0.0.0/24 | rw           | active | None       | 2019-04-16T06:03:10.000000 | None       |
+--------------------------------------+-------------+-------------+--------------+--------+------------+----------------------------+------------+

ubuntu@dlp ~(keystone)$
openstack server start Ubuntu_1804

# アクセス Path 確認

ubuntu@dlp ~(keystone)$
manila show share01 | grep path | cut -d'|' -f3

path = 10.0.0.50:/var/lib/manila/mnt/share-72bc2f5c-2d89-4dfb-9d1f-136979514f02
ubuntu@dlp ~(keystone)$
ssh ubuntu@10.0.0.202

Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-47-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

  System information as of Tue Apr 16 15:04:39 JST 2019

  System load:  0.36              Processes:           89
  Usage of /:   19.6% of 8.80GB   Users logged in:     0
  Memory usage: 6%                IP address for ens3: 192.168.100.136
  Swap usage:   0%

16 packages can be updated.
1 update is a security update.
# Manila 共有ストレージをマウント

ubuntu@ubuntu-1804:~$
sudo mount -t nfs 10.0.0.50:/var/lib/manila/mnt/share-72bc2f5c-2d89-4dfb-9d1f-136979514f02 /mnt

ubuntu@ubuntu-1804:~$
df -hT

Filesystem                                                               Type      Size  Used Avail Use% Mounted on
udev                                                                     devtmpfs  967M     0  967M   0% /dev
tmpfs                                                                    tmpfs     200M  656K  199M   1% /run
/dev/mapper/ubuntu--vg-root                                              ext4      8.9G  1.8G  6.7G  21% /
tmpfs                                                                    tmpfs     997M     0  997M   0% /dev/shm
tmpfs                                                                    tmpfs     5.0M     0  5.0M   0% /run/lock
tmpfs                                                                    tmpfs     997M     0  997M   0% /sys/fs/cgroup
tmpfs                                                                    tmpfs     200M     0  200M   0% /run/user/1000
10.0.0.50:/var/lib/manila/mnt/share-72bc2f5c-2d89-4dfb-9d1f-136979514f02 nfs4      9.8G   36M  9.3G   1% /mnt
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