Ubuntu 16.04
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OpenStack Pike : How to use Manila#1
2017/09/18
 
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  |   |                       |   |        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] 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                   | 9498959f-e08c-40de-94c6-271cfbd94b39 |
| optional_extra_specs |                                      |
+----------------------+--------------------------------------+

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

+-----------+--------------------+------------+------------+--------------------------------------+-------+
| ID        | Name               | visibility | is_default | required_extra_specs                 | opt.. |
+-----------+--------------------+------------+------------+--------------------------------------+-------+
| 9498959f- | 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                                    | 376e25d6-521a-4745-88d7-ba5012870762 |
| size                                  | 10                                   |
| source_share_group_snapshot_member_id | None                                 |
| user_id                               | 71b407652ab4433a801915ab21018ffd     |
| name                                  | share01                              |
| share_type                            | 9498959f-e08c-40de-94c6-271cfbd94b39 |
| has_replicas                          | False                                |
| replication_type                      | None                                 |
| created_at                            | 2017-09-20T07:42:48.000000           |
| share_proto                           | NFS                                  |
| mount_snapshot_support                | False                                |
| project_id                            | 1ca37b956ae4451892dfcc47f5f98913     |
| 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    | Avai.. |
+-----------+---------+------+-------------+-----------+-----------+--------------------+---------+--------+
| 376e25d6- | share01 | 10   | NFS         | available | False     | default_share_type | netw... | 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      | Flavor   |
+-----------+-------------+---------+------------------------------------+------------+----------+
| f5ae3046- | Ubuntu_1604 | SHUTOFF | int_net=192.168.100.10, 10.0.0.210 | Ubuntu1604 | m1.small |
+-----------+-------------+---------+------------------------------------+------------+----------+

# allow access permission first

root@dlp ~(keystone)#
manila access-allow share01 ip 192.168.100.0/24 --access-level rw

+--------------+--------------------------------------+
| Property     | Value                                |
+--------------+--------------------------------------+
| access_key   | None                                 |
| share_id     | 376e25d6-521a-4745-88d7-ba5012870762 |
| created_at   | 2017-09-20T07:44:56.000000           |
| updated_at   | None                                 |
| access_type  | ip                                   |
| access_to    | 192.168.100.0/24                     |
| access_level | rw                                   |
| state        | queued_to_apply                      |
| id           | 297708f9-36ee-43cb-8c4b-e012607fcb52 |
+--------------+--------------------------------------+

# 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 | created_at    | updat.. |
+-----------+-------------+------------------+--------------+--------+------------+---------------+---------+
| 297708f9- | ip          | 192.168.100.0/24 | rw           | active | None       | 2017-09-20... | 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-ebb667fd-f81a-45a0-8e35-a7776c777601
root@dlp ~(keystone)#
ssh ubuntu@10.0.0.210

Welcome to Ubuntu 16.04.3 LTS (GNU/Linux 4.4.0-93-generic x86_64)
# mount Manila shared storage

ubuntu@ubuntu-1604:~$
sudo mount -t nfs 10.0.0.50:/var/lib/manila/mnt/share-ebb667fd-f81a-45a0-8e35-a7776c777601 /mnt

ubuntu@ubuntu-1604:~$
df -hT

Filesystem                                       Type      Size  Used Avail Use% Mounted on
udev                                             devtmpfs  982M     0  982M   0% /dev
tmpfs                                            tmpfs     201M  3.1M  197M   2% /run
/dev/mapper/ubuntu--vg-root                      ext4      7.3G  1.3G  5.7G  18% /
tmpfs                                            tmpfs    1001M     0 1001M   0% /dev/shm
tmpfs                                            tmpfs     5.0M     0  5.0M   0% /run/lock
tmpfs                                            tmpfs    1001M     0 1001M   0% /sys/fs/cgroup
/dev/vda1                                        ext2      472M   55M  393M  13% /boot
tmpfs                                            tmpfs     201M     0  201M   0% /run/user/1000
10.0.0.50:/var/lib/manila/mnt/share-ebb667fd-... nfs4      9.8G   23M  9.2G   1% /mnt
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