Ubuntu 16.04
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OpenStack Ocata : How to use Manila
2017/03/18
 
This is How to use OpenStack Shared File System (Manila).
This example is based on the emvironment like follows.
For example, Configure local block device as shared storage on Storage Node and use it from Instances. Therefore, it needs there is a free block device on Storage Node.
     ------------+--------------------------------+--------------------------------+------------
                 |                                |                                |
             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] Configure Storage Node.
root@storage:~#
apt-get -y install lvm2 nfs-kernel-server
# create a volume for Manila on free block device

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
# add follows into [DEFAULT] section

enabled_share_backends = lvm
# add to the end

[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] Create default share type. It's OK to work on any node. (This example is on Control Node)
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] Create NFS share.
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                              | {}                                   |
+---------------------------------------+--------------------------------------+

# few minutes later, the Status turns to available

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] It's OK all, you can use Manila Shared filesystem from Instances like follows.
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    |            |
+--------------------+-------------+---------+--------------------+------------+

# allow access permission first

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 |
+--------------+--------------------------------------+

# it's no ploblem if State turns to active

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

# confirm access Path

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:
# mount Manila shared storage

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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