Ubuntu 16.04
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OpenStack Ocata : Manila 利用方法
2017/03/18
 
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  |        |      Open vSwitch     |        |        Libvirt        |
     |  Memcached  httpd     |        |  L2,L3,Metadata Agent |        |      Nova Compute     |
     |  Keystone   Glance    |        |      Manila Share     |        |        L2 Agent       |
     |  Nova API             |        |                       |        |                       |
     |  Neutron Server       |        |                       |        |                       |
     |  Manila API           |        |                       |        |                       |
     +-----------------------+        +-----------------------+        +-----------------------+

[1] Storage ノードの設定です。
root@storage:~#
apt-get -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、ここ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           | -                                    |
| ID                   | 98accd2e-b951-448b-9467-10a6e9aaa374 |
| optional_extra_specs |                                      |
+----------------------+--------------------------------------+

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

+-----------+--------------------+------------+------------+--------------------------------------+----------------------+
| ID        | Name               | visibility | is_default | required_extra_specs                 | optional_extra_specs |
+-----------+--------------------+------------+------------+--------------------------------------+----------------------+
| 98accd2e- | default_share_type | public     | YES        | driver_handles_share_servers : False |                      |
+-----------+--------------------+------------+------------+--------------------------------------+----------------------+
[3] NFS 共有を作成します。
root@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_server_id                       | None                                 |
| share_group_id                        | None                                 |
| host                                  |                                      |
| 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                                    | 96368e55-c8a0-41ef-ab96-31300df0da34 |
| size                                  | 10                                   |
| source_share_group_snapshot_member_id | None                                 |
| user_id                               | 6ecb1a2e5f664d508afac2b985508a0d     |
| name                                  | share01                              |
| share_type                            | 98accd2e-b951-448b-9467-10a6e9aaa374 |
| has_replicas                          | False                                |
| replication_type                      | None                                 |
| created_at                            | 2017-03-20T02:29:34.000000           |
| share_proto                           | NFS                                  |
| mount_snapshot_support                | False                                |
| project_id                            | ef6b5d01da394383a1afba725735a727     |
| metadata                              | {}                                   |
+---------------------------------------+--------------------------------------+

# Status が available になれば作成完了

root@dlp ~(keystone)#
manila list

+-----------+---------+------+-------------+-----------+-----------+--------------------+---------------+-------------------+
| ID        | Name    | Size | Share Proto | Status    | Is Public | Share Type Name    | Host          | Availability Zone |
+-----------+---------+------+-------------+-----------+-----------+--------------------+---------------+-------------------+
| 96368e55- | share01 | 10   | NFS         | available | False     | default_share_type | network.srv.w | nova              |
+-----------+---------+------+-------------+-----------+-----------+--------------------+---------------+-------------------+
[4] 以上の設定で、任意のインスタンスから Manila の共有サービスを利用することができます。
root@dlp ~(keystone)#
openstack server list

+--------------------+-------------+---------+--------------------+------------+
| ID                 | Name        | Status  | Networks           | Image Name |
+--------------------+-------------+---------+--------------------+------------+
| 9b506f0f-4c3b-458b | Ubuntu_1604 | SHUTOFF | int_net=192.168.10 | Ubuntu1604 |
| -9213-17de1c4da03c |             |         | 0.6, 10.0.0.203    |            |
+--------------------+-------------+---------+--------------------+------------+

# 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)

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

+--------------+--------------------------------------+
| Property     | Value                                |
+--------------+--------------------------------------+
| access_key   | None                                 |
| share_id     | 96368e55-c8a0-41ef-ab96-31300df0da34 |
| access_type  | ip                                   |
| access_to    | 10.0.0.0/24                          |
| access_level | rw                                   |
| state        | queued_to_apply                      |
| id           | e0e1389c-7186-469f-83d9-ee6b933b738e |
+--------------+--------------------------------------+

# State が active であれば問題なし

root@dlp ~(keystone)#
manila access-list share01

+--------------------------------------+-------------+-----------------+--------------+--------+------------+
| id                                   | access_type | access_to       | access_level | state  | access_key |
+--------------------------------------+-------------+-----------------+--------------+--------+------------+
| e0e1389c-7186-469f-83d9-ee6b933b738e | ip          | 10.0.0.0/24     | rw           | active | None       |
+--------------------------------------+-------------+-----------------+--------------+--------+------------+

root@dlp ~(keystone)#
openstack server start Ubuntu_1604

# アクセス Path 確認

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

path = 10.0.0.50:/var/lib/manila/mnt/share-080ddcdc-bc89-4208-a9d5-563164eef482
root@dlp ~(keystone)#
ssh ubuntu@10.0.0.203

ubuntu@10.0.0.203's password:
# Manila 共有ストレージをマウント

ubuntu@ubuntu:~$
sudo mount -t nfs 10.0.0.50:/var/lib/manila/mnt/share-080ddcdc-bc89-4208-a9d5-563164eef482 /mnt

ubuntu@ubuntu:~$
df -hT

Filesystem                                                                Size  Used Avail Use% Mounted on
udev                                                                      982M     0  982M   0% /dev
tmpfs                                                                     201M  3.2M  197M   2% /run
/dev/mapper/ubuntu--vg-root                                               7.3G  1.3G  5.7G  18% /
tmpfs                                                                    1001M     0 1001M   0% /dev/shm
tmpfs                                                                     5.0M     0  5.0M   0% /run/lock
tmpfs                                                                    1001M     0 1001M   0% /sys/fs/cgroup
/dev/vda1                                                                 472M   55M  393M  13% /boot
tmpfs                                                                     201M     0  201M   0% /run/user/1000
10.0.0.50:/var/lib/manila/mnt/share-080ddcdc-bc89-4208-a9d5-563164eef482  9.8G   23M  9.2G   1% /mnt
 
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