Ceph Cinder 整合

首先在Controller或Cinder Node上安裝 Ceph，並將 conf 檔推給串接節點：

$ ceph-deploy install <node>

ceph-deploy 可以用pip install ceph-deploy安裝。:

在Controller節點新增一個 Pool 用來給 Cinder 使用：

$ ceph osd pool create volumes 128
$ ceph osd pool create backups 128

在Controller建立 Ceph 驗證與權限：

$ ceph auth get-or-create client.cinder mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=volumes, allow rwx pool=vms, allow rx pool=images'
$ ceph auth get-or-create client.cinder-backup mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=backups'

在Controller複製認證金鑰給cinder-volume使用：

$ ceph auth get-or-create client.cinder | ssh <cinder-volume> sudo tee /etc/ceph/client.cinder.keyring
$ ssh <cinder-volume> sudo chown cinder:cinder /etc/ceph/client.cinder.keyring

在Controller複製認證金鑰給cinder-backup使用：

$ ceph auth get-or-create client.cinder-backup | ssh <cinder-backup> sudo tee /etc/ceph/client.cinder-backup.keyring
$ ssh <cinder-backup> sudo chown cinder:cinder /etc/ceph/client.cinder-backup.keyring

Block Node

首先安裝套件：

sudo apt-get install cinder-volume python-mysqldb qemu

然後在編輯/etc/ceph/ceph.conf，加入以下內容：

...
[client.cinder]
keyring = /etc/ceph/client.cinder.keyring

[client.cinder-backup]
keyring = /etc/ceph/client.cinder-backup.keyring

之後編輯/etc/cinder/cinder.conf，並在[DEFAULT]部分加入以下：

[DEFAULT]
...
# volume_group = cinder-volumes
enabled_backends = rbd

[rbd]
volume_backend_name = rbd-backend
volume_driver = cinder.volume.drivers.rbd.RBDDriver
rbd_pool = volumes
rbd_ceph_conf = /etc/ceph/ceph.conf
rbd_flatten_volume_from_snapshot = false
rbd_max_clone_depth = 5
rbd_store_chunk_size = 4
rados_connect_timeout = -1
glance_api_version = 2

rbd_user = cinder
rbd_secret_uuid = 457eb676-33da-42ec-9a8c-9293d545c337

這邊Cinder Server為 block1

若有使用cinder-backup的話，則接著加入以下內容：

[DEFAULT]
...
backup_driver = cinder.backup.drivers.ceph
backup_ceph_conf = /etc/ceph/ceph.conf
backup_ceph_user = cinder-backup
backup_ceph_chunk_size = 134217728
backup_ceph_pool = backups
backup_ceph_stripe_unit = 0
backup_ceph_stripe_count = 0
restore_discard_excess_bytes = true

完成後，重新啟動服務：

$ sudo service cinder-volume restart
$ sudo service cinder-backup restart