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OpenStack Train : Manila 利用方法#1
2019/10/28
 
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/sdc1

  Physical volume "/dev/sdc1" successfully created
[root@storage ~]#
vgcreate manila-volumes /dev/sdc1

  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_ips = 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、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                   | ec5e99d3-936a-468b-b880-460ee640ee67 |
| optional_extra_specs |                                      |
| Description          | None                                 |
+----------------------+--------------------------------------+

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

+--------------------------------------+--------------------+------------+------------+--------------------------------------+----------------------+-------------+
| ID                                   | Name               | visibility | is_default | required_extra_specs                 | optional_extra_specs | Description |
+--------------------------------------+--------------------+------------+------------+--------------------------------------+----------------------+-------------+
| ec5e99d3-936a-468b-b880-460ee640ee67 | 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。
[cent@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                                    | 3b1bfaeb-9b99-4165-8efa-2a17f093252a |
| size                                  | 10                                   |
| source_share_group_snapshot_member_id | None                                 |
| user_id                               | 14ad73cc98744e01a51886e13d541013     |
| name                                  | share01                              |
| share_type                            | ec5e99d3-936a-468b-b880-460ee640ee67 |
| has_replicas                          | False                                |
| replication_type                      | None                                 |
| created_at                            | 2019-10-28T07:25:17.000000           |
| share_proto                           | NFS                                  |
| mount_snapshot_support                | False                                |
| project_id                            | 67b2b71cee384d69939e6b3963e0b2db     |
| metadata                              | {}                                   |
+---------------------------------------+--------------------------------------+

# Status が available になれば作成完了

[cent@dlp ~(keystone)]$
manila list

+--------------------------------------+---------+------+-------------+-----------+-----------+--------------------+------+-------------------+
| ID                                   | Name    | Size | Share Proto | Status    | Is Public | Share Type Name    | Host | Availability Zone |
+--------------------------------------+---------+------+-------------+-----------+-----------+--------------------+------+-------------------+
| 3b1bfaeb-9b99-4165-8efa-2a17f093252a | 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。
[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+----------+---------+-------------------------------------+---------+----------+
| ID                                   | Name     | Status  | Networks                            | Image   | Flavor   |
+--------------------------------------+----------+---------+-------------------------------------+---------+----------+
| b3c21241-2800-4109-831b-6fd69d20ecf8 | CentOS_7 | SHUTOFF | int_net=192.168.100.179, 10.0.0.233 | 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)

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

+--------------+--------------------------------------+
| Property     | Value                                |
+--------------+--------------------------------------+
| access_key   | None                                 |
| share_id     | 3b1bfaeb-9b99-4165-8efa-2a17f093252a |
| created_at   | 2019-10-28T07:26:15.000000           |
| updated_at   | None                                 |
| access_type  | ip                                   |
| access_to    | 10.0.0.0/24                          |
| access_level | rw                                   |
| state        | queued_to_apply                      |
| id           | 48b41aaa-90cf-453b-8024-9b7507cbe3aa |
| metadata     | {}                                   |
+--------------+--------------------------------------+

# State が active であれば問題なし

[cent@dlp ~(keystone)]$
manila access-list share01

+--------------------------------------+-------------+-------------+--------------+--------+------------+----------------------------+------------+
| id                                   | access_type | access_to   | access_level | state  | access_key | created_at                 | updated_at |
+--------------------------------------+-------------+-------------+--------------+--------+------------+----------------------------+------------+
| 48b41aaa-90cf-453b-8024-9b7507cbe3aa | ip          | 10.0.0.0/24 | rw           | active | None       | 2019-10-28T07:26:15.000000 | None       |
+--------------------------------------+-------------+-------------+--------------+--------+------------+----------------------------+------------+

[cent@dlp ~(keystone)]$
openstack server start CentOS_7

# アクセス Path 確認

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

path = 10.0.0.50:/var/lib/manila/mnt/share-0b1dc4fd-b44e-48ea-a6ef-b9f03223c0a0
[cent@dlp ~(keystone)]$
ssh centos@10.0.0.233

Last login: Fri Oct 26 16:11:45 2019 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-0b1dc4fd-b44e-48ea-a6ef-b9f03223c0a0 /mnt

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

Filesystem                                                               Type      Size  Used Avail Use% Mounted on
devtmpfs                                                                 devtmpfs  908M     0  908M   0% /dev
tmpfs                                                                    tmpfs     919M     0  919M   0% /dev/shm
tmpfs                                                                    tmpfs     919M  8.5M  911M   1% /run
tmpfs                                                                    tmpfs     919M     0  919M   0% /sys/fs/cgroup
/dev/mapper/centos-root                                                  xfs       8.0G  1.3G  6.8G  16% /
/dev/vda1                                                                xfs      1014M  149M  866M  15% /boot
tmpfs                                                                    tmpfs     184M     0  184M   0% /run/user/1001
10.0.0.50:/var/lib/manila/mnt/share-0b1dc4fd-b44e-48ea-a6ef-b9f03223c0a0 nfs4      9.8G   36M  9.2G   1% /mnt
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