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OpenStack Pike : Manila 利用方法#1
2017/09/07
 
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 Agent       |   |     Nova Compute      |
     |  Keystone   Glance    |   |        L3 Agent       |   |      Open vSwitch     |
     |  Nova API             |   |     Metadata Agent    |   |        L2 Agent       |
     |  Neutron Server       |   |      Manila Share     |   |                       |
     |  Metadata Agent       |   |                       |   |                       |
     |  Manila API           |   |                       |   |                       |
     +-----------------------+   +-----------------------+   +-----------------------+

[1] Storage ノードの設定です。
[root@storage ~]#
yum -y install nfs-utils nfs4-acl-tools
# 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 start openstack-manila-share nfs-server

[root@storage ~]#
systemctl enable openstack-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                   | 224021a0-bb81-4d7f-91b1-488e7baf191f |
| optional_extra_specs |                                      |
+----------------------+--------------------------------------+

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

+-----------+--------------------+------------+------------+--------------------------------------+--------+
| ID        | Name               | visibility | is_default | required_extra_specs                 | opt... |
+-----------+--------------------+------------+------------+--------------------------------------+--------+
| 224021a0- | 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 1 --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                                    | da49783c-baa7-4514-97ef-a09c90a9a6e5 |
| size                                  | 1                                    |
| source_share_group_snapshot_member_id | None                                 |
| user_id                               | 09d8dfa20e0f40eaae448d369943b195     |
| name                                  | share01                              |
| share_type                            | 224021a0-bb81-4d7f-91b1-488e7baf191f |
| has_replicas                          | False                                |
| replication_type                      | None                                 |
| created_at                            | 2017-09-08T02:42:29.000000           |
| share_proto                           | NFS                                  |
| mount_snapshot_support                | False                                |
| project_id                            | 09158bee8c6441519bf3a3743d936566     |
| 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    | Avai.. |
+-----------+---------+------+-------------+-----------+-----------+--------------------+---------+--------+
| da49783c- | share01 | 1    | NFS         | available | False     | default_share_type | netw... | 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   | Flavor   |
+-----------+----------+---------+------------------------------------+---------+----------+
| 662f62b8- | CentOS_7 | SHUTOFF | int_net=192.168.100.12, 10.0.0.201 | CentOS7 | 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)

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

+--------------+--------------------------------------+
| Property     | Value                                |
+--------------+--------------------------------------+
| access_key   | None                                 |
| share_id     | da49783c-baa7-4514-97ef-a09c90a9a6e5 |
| created_at   | 2017-09-08T02:45:11.000000           |
| updated_at   | None                                 |
| access_type  | ip                                   |
| access_to    | 10.0.0.0/24                          |
| access_level | rw                                   |
| state        | queued_to_apply                      |
| id           | 621d52ac-90ee-4470-af2c-253224cb092a |
+--------------+--------------------------------------+

# 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 | created_at    | updated_at |
+-----------+-------------+-------------+--------------+--------+------------+---------------+------------+
| 621d52ac- | ip          | 10.0.0.0/24 | rw           | active | None       | 2017-09-08... | None       |
+-----------+-------------+-------------+--------------+--------+------------+---------------+------------+

[root@dlp ~(keystone)]#
openstack server start CentOS_7

# 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-6c6770cc-a2ba-41bc-b283-ffd9204991d9
[root@dlp ~(keystone)]#
ssh centos@10.0.0.201

Last login: Thu Sep 7 17:13:09 2017 from dlp.srv.world
[centos@centos-7 ~]$
# Manila 共有ストレージをマウント

[centos@centos-7 ~]$
sudo mount -t nfs \
10.0.0.50:/var/lib/manila/mnt/share-6c6770cc-a2ba-41bc-b283-ffd9204991d9 /mnt

[centos@centos-7 ~]$
df -hT

Filesystem                                                 Type      Size  Used Avail Use% Mounted on
/dev/mapper/cl-root                                        xfs       8.0G  1.1G  7.0G  14% /
devtmpfs                                                   devtmpfs  990M     0  990M   0% /dev
tmpfs                                                      tmpfs    1001M     0 1001M   0% /dev/shm
tmpfs                                                      tmpfs    1001M  8.3M  992M   1% /run
tmpfs                                                      tmpfs    1001M     0 1001M   0% /sys/fs/cgroup
/dev/vda1                                                  xfs      1014M  121M  894M  12% /boot
tmpfs                                                      tmpfs     201M     0  201M   0% /run/user/1000
10.0.0.50:/var/lib/manila/mnt/share-6c6770cc-a2ba-41bc-... nfs4      976M  2.5M  907M   1% /mnt
 
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