OpenStack Yoga : Use Cinder Storage (Multi-BackEnds)2022/04/30 |
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It's possible to use Virtual Storages provided by Cinder if an Instance needs more disks.
Configure Virtual storage with LVM and NFS Multi-Backend on here.
------------+-----------------------------+-----------------------------+--------------+
| | | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51 |
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+ |
| [ dlp.srv.world ] | | [ network.srv.world ] | | [ node01.srv.world ] | |
| (Control Node) | | (Storage Node) | | (Compute Node) | |
| | | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt | |
| Memcached httpd | | Neutron Server | | Nova Compute | |
| Keystone Glance | | OVN-Northd | | Open vSwitch | |
| Nova API Cinder API | | Cinder Volume | | OVN Metadata Agent | |
| | | | | OVN-Controller | |
+-----------------------+ +-----------------------+ +-----------------------+ |
|
-----------+---------------------------------------------------------------------------+
eth0|10.0.0.35
+----------+-----------+
| [ nfs.srv.world ] |
| NFS Server |
+----------------------+
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| [1] |
For LVM backend on this example, use a volume group [vg_volume01] for it.
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| [2] |
NFS server is required to be running on your local network, refer to here.
On this example, configure [/var/lib/nfs-share] directory on [nfs.srv.world] as a shared directory. |
| [3] | Configure Storage Node. |
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root@network:~#
apt -y install nfs-common
root@network:~#
vi /etc/idmapd.conf # line 5 : uncomment and change to your domain name Domain = srv.world
root@network:~#
vi /etc/cinder/cinder.conf # add the value to [enabled_backends] param enabled_backends = lvm,nfs # add to the end [lvm] target_helper = lioadm target_protocol = iscsi target_ip_address = $my_ip volume_backend_name = LVM # volume group name created volume_group = vg_volume01 volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver volumes_dir = $state_path/volumes [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
root@storage:~#
vi /etc/cinder/nfs_shares # create new : specify NFS shared directory # if set multiple share, write one per line nfs.srv.world:/var/lib/nfs-share chmod 640 /etc/cinder/nfs_shares root@network:~# chgrp cinder /etc/cinder/nfs_shares root@network:~# systemctl restart cinder-volume root@network:~# chown -R cinder. /var/lib/cinder/mnt_nfs
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| [4] | Configure Compute Node. |
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root@node01:~#
apt -y install nfs-common
root@node01:~#
vi /etc/idmapd.conf # line 5 : uncomment and change to your domain name Domain = srv.world
root@node01:~#
vi /etc/nova/nova.conf # add to the end [cinder] os_region_name = RegionOne systemctl restart nova-compute |
| [5] | Create volume types. It's OK to work on any node. (example below is on Control Node) |
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# set environment variable root@dlp ~(keystone)# echo "export OS_VOLUME_API_VERSION=3" >> ~/keystonerc root@dlp ~(keystone)# source ~/keystonerc
openstack volume type create lvm +-------------+--------------------------------------+ | Field | Value | +-------------+--------------------------------------+ | description | None | | id | ad9d6b9d-9e74-420e-8f75-c3dc3e389404 | | is_public | True | | name | lvm | +-------------+--------------------------------------+root@dlp ~(keystone)# openstack volume type create nfs +-------------+--------------------------------------+ | Field | Value | +-------------+--------------------------------------+ | description | None | | id | 7f924af0-5b68-4b1c-972d-7decb0b0bb26 | | is_public | True | | name | nfs | +-------------+--------------------------------------+root@dlp ~(keystone)# openstack volume type list +--------------------------------------+-------------+-----------+ | ID | Name | Is Public | +--------------------------------------+-------------+-----------+ | 7f924af0-5b68-4b1c-972d-7decb0b0bb26 | nfs | True | | ad9d6b9d-9e74-420e-8f75-c3dc3e389404 | lvm | True | | 0b55ccc1-142d-4812-98ea-5de7aa8a77f8 | __DEFAULT__ | True | +--------------------------------------+-------------+-----------+ |
| [6] | Login as a common user you'd like to add volumes to own instances. |
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# set environment variable ubuntu@dlp ~(keystone)$ echo "export OS_VOLUME_API_VERSION=3" >> ~/keystonerc ubuntu@dlp ~(keystone)$ source ~/keystonerc
openstack volume create --type lvm --size 10 disk-lvm +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | attachments | [] | | availability_zone | nova | | bootable | false | | consistencygroup_id | None | | created_at | 2022-04-30T04:40:47.643660 | | description | None | | encrypted | False | | id | 1068006a-8458-4970-a5c8-2a0a7431cf84 | | multiattach | False | | name | disk-lvm | | properties | | | replication_status | None | | size | 10 | | snapshot_id | None | | source_volid | None | | status | creating | | type | lvm | | updated_at | None | | user_id | 74a373164921492ca35d32fea0fd2d86 | +---------------------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack volume create --type nfs --size 10 disk-nfs +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | attachments | [] | | availability_zone | nova | | bootable | false | | consistencygroup_id | None | | created_at | 2022-04-30T04:41:03.308212 | | description | None | | encrypted | False | | id | e31c72ba-e386-4a11-b374-b3d070e621ae | | multiattach | False | | name | disk-nfs | | properties | | | replication_status | None | | size | 10 | | snapshot_id | None | | source_volid | None | | status | creating | | type | nfs | | updated_at | None | | user_id | 74a373164921492ca35d32fea0fd2d86 | +---------------------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack volume list +--------------------------------------+----------+-----------+------+-------------+ | ID | Name | Status | Size | Attached to | +--------------------------------------+----------+-----------+------+-------------+ | e31c72ba-e386-4a11-b374-b3d070e621ae | disk-nfs | available | 10 | | | 1068006a-8458-4970-a5c8-2a0a7431cf84 | disk-lvm | available | 10 | | +--------------------------------------+----------+-----------+------+-------------+ |
| [7] | Attach volume to an instance. |
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ubuntu@dlp ~(keystone)$ openstack server list +--------------------------------------+-------------+---------+-------------------------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-------------+---------+-------------------------------------+------------+----------+ | 6781b9c7-19c6-4419-a910-d0ae43c7526c | Ubuntu-2204 | SHUTOFF | private=10.0.0.203, 192.168.100.164 | Ubuntu2204 | m1.small | +--------------------------------------+-------------+---------+-------------------------------------+------------+----------+
ubuntu@dlp ~(keystone)$
openstack server add volume Ubuntu-2204 disk-lvm ubuntu@dlp ~(keystone)$ openstack server add volume Ubuntu-2204 disk-nfs
# the status of attached disk turns [in-use] like follows ubuntu@dlp ~(keystone)$ openstack volume list +--------------------------------------+----------+--------+------+--------------------------------------+ | ID | Name | Status | Size | Attached to | +--------------------------------------+----------+--------+------+--------------------------------------+ | e31c72ba-e386-4a11-b374-b3d070e621ae | disk-nfs | in-use | 10 | Attached to Ubuntu-2204 on /dev/vdc | | 1068006a-8458-4970-a5c8-2a0a7431cf84 | disk-lvm | in-use | 10 | Attached to Ubuntu-2204 on /dev/vdb | +--------------------------------------+----------+--------+------+--------------------------------------+ # detach the disk ubuntu@dlp ~(keystone)$ openstack server remove volume Ubuntu-2204 disk-lvm ubuntu@dlp ~(keystone)$ openstack server remove volume Ubuntu-2204 disk-nfs |
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