Ceph作为OpenStack后端存储
Total PGs = (Total_number_of_OSD * 100) /max_replication_count）
1、 Create pool for OpenStack
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pg=256
ceph osd pool create volumes $pg
#disk_pool
ceph osd pool create images $pg
#image_pool
ceph osd pool create vms $pg
#host_pool
ceph osd pool create backups $pg
#backup_pool
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2、 setup ceph client authentication
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ceph auth get-or-create client.cinder mon
'allow r'
osd
'allow class-read object_prefix rbd_children, allow rwxpool=volumes, allow rwx pool=vms, allow rx pool=images'
ceph auth get-or-create client.glance mon
'allow r'
osd
'allow class-read object_prefix rbd_children, allow rwxpool=images'
ceph auth get-or-createclient.cinder-backup mon
'allow r'
osd
'allow class-read object_prefixrbd_children, allow rwx pool=backups'
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3、Add the keyringsfor client.cinder, client.glance, and client.cinder-backup to the appropriatenodes and change their ownership
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ceph auth get-or-create client.glance |
ssh
{your-glance-api-server}
sudo
tee
/etc/ceph/ceph
.client.glance.keyring
ssh
{your-glance-api-server}
sudo
chownglance:glance
/etc/ceph/ceph
.client.glance.keyring
ceph auth get-or-create client.cinder |
ssh
{your-volume-server}
sudo
tee
/etc/ceph/ceph
.client.cinder.keyring
ssh
{your-cinder-volume-server}
sudo
chowncinder:cinder
/etc/ceph/ceph
.client.cinder.keyring
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4、 Nodes running nova-compute need the keyring file for thenova-compute process
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ceph auth get-or-create client.cinder |
ssh
{your-nova-compute-server}
sudo
tee
/etc/ceph/ceph
.client.cinder.keyring
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5、 Create a temporary copy of the secret key on the nodes runningnova-compute:
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ceph auth get-key client.cinder > client.cinder.key
ceph auth get-key client.cinder |
ssh
{your-compute-node}
tee
client.cinder.key
uuidgen
4f859b95-406e-49f6-9ff8-d6e04f7ba1ef
cat
> secret.xml <<EOF
<secret ephemeral=
'no'
private=
'no'
>
<uuid>4f859b95-406e-49f6-9ff8-d6e04f7ba1ef<
/uuid
>
<usage
type
=
'ceph'
>
<name>client.cinder secret<
/name
>
<
/usage
>
<
/secret
>
EOF
sudo
virsh secret-define --
file
secret.xml
sudo
virsh secret-
set
-value --secret e05983be-9251-44cb-9738-198bf9ec2d7e --base64 $(
cat
client.cinder.key)&&
rm
client.cinder.key secret.xml
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6、 Configuring Glance
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vi
/etc/glance/glance-api
.conf
[DEFAULT]
...
default_store=rbd
rbd_store_user=glance
rbd_store_pool=images
show_image_direct_url=True
...
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7、 Configuring Cinder
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vi
/etc/cinder/cinder
.conf
[DEFAULT]
...
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
glance_api_version=2
rbd_user=cinder
rbd_secret_uuid=e05983be-9251-44cb-9738-198bf9ec2d7e
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8、 Configuring Cinder Backup
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vi
/etc/cinder/cinder
.conf
[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
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9、 Configuring Nova
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vi
/etc/nova/nova
.conf
[DEFAULT]
...
libvirt_images_type=rbd
libvirt_images_rbd_pool=vms
libvirt_images_rbd_ceph_conf=
/etc/ceph/ceph
.conf
rbd_user=cinder
rbd_secret_uuid=e05983be-9251-44cb-9738-198bf9ec2d7e
libvirt_inject_password=
false
libvirt_inject_key=
false
libvirt_inject_partition=-2
libvirt_live_migration_flag=
"VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_LIVE,VIR_MIGRATE_PERSIST_DEST"
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10、 Restart OpenStack
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service openstack-glance-api restart
service openstack-nova-compute restart
service openstack-cinder-volume restart
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10、Test
本文转自Jacken_yang 51CTO博客，原文链接：http://blog.51cto.com/linuxnote/1789924，如需转载请自行联系原作者
