Ubuntu 14.04
Sponsored Link

OpenStack Liberty : Use Cinder Storage(Multi-BackEnds)
2015/12/28
 
It's possible to use Virtual Storages provided by Cinder if an Instance needs more disks.
Configure Virtual storage with NFS and GlusterFS Multi-Backend on here.
                                      +------------------+           +------------------+
                             10.0.0.50| [ Storage Node ] |  10.0.0.61|                  |
+------------------+            +-----+   Cinder-Volume  |     +-----+   GlusterFS #1   |
| [ Control Node ] |            | eth0|                  |     | eth0|                  |
|     Keystone     |10.0.0.30   |     +------------------+     |     +------------------+
|      Glance      |------------+------------------------------+
|     Nova API     |eth0        |     +------------------+     |     +------------------+
|    Cinder API    |            | eth0| [ Compute Node ] |     | eth0|                  |
+------------------+            +-----+   Nova Compute   |     +-----+   GlusterFS #2   |
                             10.0.0.51|                  |  10.0.0.62|                  |
                                      +------------------+     |     +------------------+
                                                               |
                                                               |     +------------------+
                                                               | eth0|                  |
                                                               +-----+        NFS       |
                                                            10.0.0.40|                  |
                                                                     +------------------+
[1]
NFS server is required to be running on your LAN, refer to here.
On this example, configure "/storage" directory on "nfs.srv.world" as a shared directory.
[2]
GlusterFS server is required to be running on your LAN, refer to here.
This example uses a replication volume "vol_replica" provided by "glfs01" and "glfs02".
[3] Storage ノードの設定です。
root@storage:~#
apt-get -y install nfs-common glusterfs-client
root@storage:~#
vi /etc/cinder/cinder.conf
# add follows in the [DEFAULT] section

enabled_backends = nfs,glusterfs
# add follows to the end

[nfs]
volume_driver = cinder.volume.drivers.nfs.NfsDriver
volume_backend_name = NFS
nfs_shares_config = /etc/cinder/nfs_shares
nfs_mount_point_base = $state_path/mnt_nfs
[glusterfs]
volume_driver = cinder.volume.drivers.glusterfs.GlusterfsDriver
volume_backend_name = GlusterFS
glusterfs_shares_config = /etc/cinder/glusterfs_shares
glusterfs_mount_point_base = $state_path/mnt_glusterfs
root@storage:~#
vi /etc/cinder/nfs_shares
# create new : specify NFS shared directories

nfs.srv.world:/storage
root@storage:~#
vi /etc/cinder/glusterfs_shares
# create new : specify GlusterFS volumes

glfs01.srv.world:/vol_replica
root@storage:~#
chmod 640 /etc/cinder/nfs_shares /etc/cinder/glusterfs_shares

root@storage:~#
chgrp cinder /etc/cinder/nfs_shares /etc/cinder/glusterfs_shares

root@storage:~#
initctl restart cinder-volume

[4] Configure Compute Node to mount NFS and GlusterFS volumes.
root@node01:~#
apt-get -y install nfs-common glusterfs-client
root@node01:~#
vi /etc/nova/nova.conf
# add follows in the [DEFAULT] section

osapi_volume_listen = 0.0.0.0
volume_api_class = nova.volume.cinder.API
root@node01:~#
initctl restart nova-compute

[5] Create volume types. It's OK to work on any node. (This example is on Control Node)
# set environment variable first

root@dlp ~(keystone)#
echo "export OS_VOLUME_API_VERSION=2" >> ~/keystonerc

root@dlp ~(keystone)#
source ~/keystonerc
root@dlp ~(keystone)#
cinder type-create nfs

+--------------------------------------+------+-------------+-----------+
|                  ID                  | Name | Description | Is_Public |
+--------------------------------------+------+-------------+-----------+
| b153f4c3-1e73-4fca-bd01-47d95a4f20ea | nfs  |      -      |    True   |
+--------------------------------------+------+-------------+-----------+

root@dlp ~(keystone)#
cinder type-create glusterfs

+--------------------------------------+-----------+-------------+-----------+
|                  ID                  |    Name   | Description | Is_Public |
+--------------------------------------+-----------+-------------+-----------+
| 98a035f4-7570-4c70-8a1c-b56b6f05249e | glusterfs |      -      |    True   |
+--------------------------------------+-----------+-------------+-----------+

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

+--------------------------------------+-----------+-------------+-----------+
|                  ID                  |    Name   | Description | Is_Public |
+--------------------------------------+-----------+-------------+-----------+
| 98a035f4-7570-4c70-8a1c-b56b6f05249e | glusterfs |      -      |    True   |
| b153f4c3-1e73-4fca-bd01-47d95a4f20ea |    nfs    |      -      |    True   |
+--------------------------------------+-----------+-------------+-----------+
[6] Associates volume types set in [5] and names set in cinder.conf.
root@dlp ~(keystone)#
cinder type-key nfs set volume_backend_name=NFS

root@dlp ~(keystone)#
cinder type-key glusterfs set volume_backend_name=GlusterFS

root@dlp ~(keystone)#
cinder extra-specs-list

+--------------------------------------+-----------+----------------------------------------+
|                  ID                  |    Name   |              extra_specs               |
+--------------------------------------+-----------+----------------------------------------+
| 98a035f4-7570-4c70-8a1c-b56b6f05249e | glusterfs | {u'volume_backend_name': u'GlusterFS'} |
| b153f4c3-1e73-4fca-bd01-47d95a4f20ea |    nfs    |    {u'volume_backend_name': u'NFS'}    |
+--------------------------------------+-----------+----------------------------------------+
[7] Create volumes with specifying volume types.
root@dlp ~(keystone)#
cinder create --display_name disk_nfs --volume-type nfs 10

+---------------------------------------+--------------------------------------+
|                Property               |                Value                 |
+---------------------------------------+--------------------------------------+
|              attachments              |                  []                  |
|           availability_zone           |                 nova                 |
|                bootable               |                false                 |
|          consistencygroup_id          |                 None                 |
|               created_at              |      2016-01-02T08:45:14.000000      |
|              description              |                 None                 |
|               encrypted               |                False                 |
|                   id                  | 32937b19-12f7-4bb3-8743-07e4cd0c94f7 |
|                metadata               |                  {}                  |
|            migration_status           |                 None                 |
|              multiattach              |                False                 |
|                  name                 |               disk_nfs               |
|         os-vol-host-attr:host         |                 None                 |
|     os-vol-mig-status-attr:migstat    |                 None                 |
|     os-vol-mig-status-attr:name_id    |                 None                 |
|      os-vol-tenant-attr:tenant_id     |   fa7d34414b8c45c4a2fdc29403fb5cd2   |
|   os-volume-replication:driver_data   |                 None                 |
| os-volume-replication:extended_status |                 None                 |
|           replication_status          |               disabled               |
|                  size                 |                  10                  |
|              snapshot_id              |                 None                 |
|              source_volid             |                 None                 |
|                 status                |               creating               |
|                user_id                |   5efb3edfd2f347eea6258068a06cb9f1   |
|              volume_type              |                 nfs                  |
+---------------------------------------+--------------------------------------+

root@dlp ~(keystone)#
cinder create --display_name disk_glusterfs --volume-type glusterfs 10

+---------------------------------------+--------------------------------------+
|                Property               |                Value                 |
+---------------------------------------+--------------------------------------+
|              attachments              |                  []                  |
|           availability_zone           |                 nova                 |
|                bootable               |                false                 |
|          consistencygroup_id          |                 None                 |
|               created_at              |      2016-01-02T08:45:19.000000      |
|              description              |                 None                 |
|               encrypted               |                False                 |
|                   id                  | 6581e8eb-ec46-47a7-a162-68d77fe748fc |
|                metadata               |                  {}                  |
|            migration_status           |                 None                 |
|              multiattach              |                False                 |
|                  name                 |            disk_glusterfs            |
|         os-vol-host-attr:host         |                 None                 |
|     os-vol-mig-status-attr:migstat    |                 None                 |
|     os-vol-mig-status-attr:name_id    |                 None                 |
|      os-vol-tenant-attr:tenant_id     |   fa7d34414b8c45c4a2fdc29403fb5cd2   |
|   os-volume-replication:driver_data   |                 None                 |
| os-volume-replication:extended_status |                 None                 |
|           replication_status          |               disabled               |
|                  size                 |                  10                  |
|              snapshot_id              |                 None                 |
|              source_volid             |                 None                 |
|                 status                |               creating               |
|                user_id                |   5efb3edfd2f347eea6258068a06cb9f1   |
|              volume_type              |              glusterfs               |
+---------------------------------------+--------------------------------------+

root@dlp ~(keystone)#
cinder list

+--------------------------------------+-----------+------------------+----------------+------+-------------+----------+-------------+-------------+
|                  ID                  |   Status  | Migration Status |      Name      | Size | Volume Type | Bootable | Multiattach | Attached to |
+--------------------------------------+-----------+------------------+----------------+------+-------------+----------+-------------+-------------+
| 32937b19-12f7-4bb3-8743-07e4cd0c94f7 | available |        -         |    disk_nfs    |  10  |     nfs     |  false   |    False    |             |
| 6581e8eb-ec46-47a7-a162-68d77fe748fc | available |        -         | disk_glusterfs |  10  |  glusterfs  |  false   |    False    |             |
+--------------------------------------+-----------+------------------+----------------+------+-------------+----------+-------------+-------------+
[8] The Configuration is all OK. Attach volumes to instances like follows.
root@dlp ~(keystone)#
nova list

+-----------+-------------+---------+------------+-------------+-----------------------------------+
| ID        | Name        | Status  | Task State | Power State | Networks                          |
+-----------+-------------+---------+------------+-------------+-----------------------------------+
| a25ba5e7- | Ubuntu_1404 | SHUTOFF | -          | Shutdown    | int_net=192.168.100.3, 10.0.0.201 |
+-----------+-------------+---------+------------+-------------+-----------------------------------+

root@dlp ~(keystone)#
nova volume-attach Ubuntu_1404 32937b19-12f7-4bb3-8743-07e4cd0c94f7 auto

+----------+--------------------------------------+
| Property | Value                                |
+----------+--------------------------------------+
| device   | /dev/vdb                             |
| id       | 32937b19-12f7-4bb3-8743-07e4cd0c94f7 |
| serverId | a25ba5e7-d01d-45ab-8484-f61315fa6648 |
| volumeId | 32937b19-12f7-4bb3-8743-07e4cd0c94f7 |
+----------+--------------------------------------+

root@dlp ~(keystone)#
nova volume-attach Ubuntu_1404 6581e8eb-ec46-47a7-a162-68d77fe748fc auto

+----------+--------------------------------------+
| Property | Value                                |
+----------+--------------------------------------+
| device   | /dev/vdc                             |
| id       | 6581e8eb-ec46-47a7-a162-68d77fe748fc |
| serverId | a25ba5e7-d01d-45ab-8484-f61315fa6648 |
| volumeId | 6581e8eb-ec46-47a7-a162-68d77fe748fc |
+----------+--------------------------------------+

# the status of attached disk turns "in-use" like follows

root@dlp ~(keystone)#
cinder list

+-----------+--------+------------------+----------------+------+-------------+----------+-------------+----------------+
| ID        | Status | Migration Status |      Name      | Size | Volume Type | Bootable | Multiattach | Attached to    |
+-----------+--------+------------------+----------------+------+-------------+----------+-------------+----------------+
| 32937b19- | in-use |        -         |    disk_nfs    |  10  |     nfs     |  false   |    False    | a25ba5e7-d01d- |
| 6581e8eb- | in-use |        -         | disk_glusterfs |  10  |  glusterfs  |  false   |    False    | a25ba5e7-d01d- |
+-----------+--------+------------------+----------------+------+-------------+----------+-------------+----------------+
Matched Content
 
Tweet