B18-openstack高可用Glance集成Ceph

1. 配置glance-api.conf

# 在运行glance-api服务的节点修改glance-api.conf文件，含3个控制节点，以controller01节点为例
# 以下只列出涉及glance集成ceph的section

# 在运行glance-api服务的节点修改glance-api.conf文件，含3个控制节点，以controller01节点为例
# 以下只列出涉及glance集成ceph的section
[root@controller01 ~]# vim /etc/glance/glance-api.conf
# 打开copy-on-write功能
[DEFAULT]
show_image_direct_url = True

# 变更默认使用的本地文件存储为ceph rbd存储；
# 注意红色字体部分前后一致
[glance_store]
#stores = file,http
#default_store = file
#filesystem_store_datadir = /var/lib/glance/images/
stores = rbd
default_store = rbd
rbd_store_chunk_size = 8
rbd_store_pool = images
rbd_store_user = glance
rbd_store_ceph_conf = /etc/ceph/ceph.conf

# 变更配置文件，重启服务
[root@controller01 ~]# systemctl restart openstack-glance-api.service
[root@controller01 ~]# systemctl restart openstack-glance-registry.service

上传镜像测试

[root@controller01 ~]# openstack image create "test" --file cirros-0.4.0-x86_64-disk.img   --disk-format qcow2 --container-format bare  --public

 

检测：

[root@compute01 ceph]# rbd ls images
6afa5744-6de6-4864-904e-55d9e8142ed4

3. 定义pool类型

# images启用后，ceph集群状态变为：HEALTH_WARN

[root@compute01 ceph]# ceph -s

# 使用”ceph health detail”，能给出解决办法；
# 未定义pool池类型，可定义为'cephfs', 'rbd', 'rgw'等
[root@compute01 ceph]# ceph health detail

# 同时解决volumes与vms两个pool的问题

[root@compute01 ceph]# ceph osd pool application enable images rbd
enabled application 'rbd' on pool 'images'
[root@compute01 ceph]# ceph osd pool application enable volumes rbd
enabled application 'rbd' on pool 'volumes'
[root@compute01 ceph]# ceph osd pool application enable vms rbd
enabled application 'rbd' on pool 'vms'

查看：

[root@compute01 ceph]# ceph health detail
HEALTH_WARN 3 pool(s) have non-power-of-two pg_num
POOL_PG_NUM_NOT_POWER_OF_TWO 3 pool(s) have non-power-of-two pg_num
pool 'volumes' pg_num 100 is not a power of two
pool 'vms' pg_num 100 is not a power of two

pool 'images' pg_num 30 is not a power of two

[root@compute01 ceph]# ceph osd pool application get images
[root@compute01 ceph]# ceph osd pool application get volumes
[root@compute01 ceph]# ceph osd pool application get vms

发现还是没有解决：

使用下列方法：

[root@compute01 ceph]# ceph mon dump
dumped monmap epoch 2
epoch 2
fsid ae343fd0-b33c-40ff-8807-d2dd25fdc2ac
last_changed 2020-06-16 10:37:49.534961
created 2020-06-16 10:37:26.076923
min_mon_release 14 (nautilus)
0: [v2:10.100.214.205:3300/0,v1:10.100.214.205:6789/0] mon.compute01
1: [v2:10.100.214.206:3300/0,v1:10.100.214.206:6789/0] mon.compute02
2: [v2:10.100.214.207:3300/0,v1:10.100.214.207:6789/0] mon.compute03

重启mon

二十．Cinder集成Ceph

1. 配置cinder.conf

# cinder利用插件式结构，支持同时使用多种后端存储；
# 在cinder-volume所在节点设置cinder.conf中设置相应的ceph rbd驱动即可；
# 含3个计算（存储）节点，以compute01节点为例；

加入下列配置：

[ceph]
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 = 40333768-948a-4572-abe0-716762154a1e
volume_backend_name = ceph

重新启动服务：

[root@compute01 ceph]# systemctl restart openstack-cinder-volume

[root@compute02 ceph]# systemctl restart openstack-cinder-volume

[root@compute03 ceph]# systemctl restart openstack-cinder-volume

2. 验证

# 查看cinder服务状态，cinder-volume集成ceph后，状态”up”；
# 或：cinder service-list

3. 生成volume

# 在控制节点为cinder的ceph后端存储创建对应的type，在配置多存储后端时可区分类型；
# 可通过“cinder type-list”查看

[root@controller01 ~]# cinder type-create ceph

# 为ceph type设置扩展规格，键值” volume_backend_name”，value值”ceph”

[root@controller01 ~]# cinder type-key ceph set volume_backend_name=ceph
[root@controller01 ~]# cinder extra-specs-list

2）生成volume

[root@controller01 ~]# cinder create --volume-type ceph --name ceph-volume1 1

# 检查生成的volume；
# 或：cinder list

# 检查ceph集群的volumes pool

[root@controller01 ~]# rbd ls volumes
volume-5e3ae4f4-f54f-4279-a726-840479504fb4