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OpenStack Liberty : Use Cinder Storage(Multi-BackEnds)
2015/12/28 |
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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| |
+------------------+
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| [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ã®è¨å®šã§ã™ã€‚ |
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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 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. |
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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 initctl restart nova-compute |
| [5] | Create volume types. It's OK to work on any node. (This example is on Control Node) |
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# set environment variable first root@dlp ~(keystone)# echo "export OS_VOLUME_API_VERSION=2" >> ~/keystonerc root@dlp ~(keystone)# source ~/keystonerc
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. |
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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'} |
+--------------------------------------+-----------+----------------------------------------+
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| [7] | Create volumes with specifying volume types. |
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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. |
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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- | +-----------+--------+------------------+----------------+------+-------------+----------+-------------+----------------+ |