块存储服务提供对 volume 从创建到删除整个生命周期的管理。从 instance 的角度看，挂载的每一个 Volume 都是一块硬盘。
OpenStack 提供 Block Storage Service 的是 Cinder，其具体功能是：
1. 提供 REST API 使用户能够查询和管理 volume、volume snapshot 以及 volume type。
2. 提供 scheduler 调度 volume 创建请求，合理优化存储资源的分配
3. 通过 driver 架构支持多种 back-end（后端）存储方式，包括 LVM，NFS，Ceph 和其他诸如 EMC、IBM 等商业存储产品和方案
这里给出如何对接lvm和nfs存储，后面有文章专门讲如何对接ceph
1.安装块存储服务cinder（控制节点，node1）
---------------------------------------------#初始化数据库，neutron连接mysql用户密码neutron/neutron
mysql -uroot -pmysql << EOF
CREATE DATABASE cinder;
GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'localhost' \
IDENTIFIED BY 'cinder';
GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' \
IDENTIFIED BY 'cinder';
EOF
---------------------------------------------#创建用户，
. admin-openrc
[root@node1 ~]# openstack user create --domain default --password-prompt cinder # 输入密码cinder
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | f4fee59fa3d64c23b90b9e269d9ff5e1 |
| name | cinder |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
[root@node1 ~]# openstack role add --project service --user cinder admin
[root@node1 ~]# openstack service create --name cinderv2 --description "OpenStack Block Storage" volumev2
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Block Storage |
| enabled | True |
| id | c6328632f50d40538ff472b7a2d9184b |
| name | cinderv2 |
| type | volumev2 |
+-------------+----------------------------------+
[root@node1 ~]# openstack service create --name cinderv3 --description "OpenStack Block Storage" volumev3
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Block Storage |
| enabled | True |
| id | 2410de3a3dbe45f881f27ac6ba23178e |
| name | cinderv3 |
| type | volumev3 |
+-------------+----------------------------------+
[root@node1 ~]# openstack endpoint create --region RegionOne volumev2 public http://node1:8776/v2/%\(project_id\)s
+--------------+-------------------------------------+
| Field | Value |
+--------------+-------------------------------------+
| enabled | True |
| id | b0c56c23b2ec436185d7f0cb25ec415a |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c6328632f50d40538ff472b7a2d9184b |
| service_name | cinderv2 |
| service_type | volumev2 |
| url | http://node1:8776/v2/%(project_id)s |
+--------------+-------------------------------------+
[root@node1 ~]# openstack endpoint create --region RegionOne volumev2 internal http://node1:8776/v2/%\(project_id\)s
+--------------+-------------------------------------+
| Field | Value |
+--------------+-------------------------------------+
| enabled | True |
| id | b1c664185c10486b8bb51f640a7ce2cc |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c6328632f50d40538ff472b7a2d9184b |
| service_name | cinderv2 |
| service_type | volumev2 |
| url | http://node1:8776/v2/%(project_id)s |
+--------------+-------------------------------------+
[root@node1 ~]# openstack endpoint create --region RegionOne volumev2 admin http://node1:8776/v2/%\(project_id\)s
+--------------+-------------------------------------+
| Field | Value |
+--------------+-------------------------------------+
| enabled | True |
| id | 09d006e3df00404a9f70b78c7643a24a |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c6328632f50d40538ff472b7a2d9184b |
| service_name | cinderv2 |
| service_type | volumev2 |
| url | http://node1:8776/v2/%(project_id)s |
+--------------+-------------------------------------+
[root@node1 ~]# openstack endpoint create --region RegionOne volumev3 public http://node1:8776/v3/%\(project_id\)s
+--------------+-------------------------------------+
| Field | Value |
+--------------+-------------------------------------+
| enabled | True |
| id | 60778080ebca45ab977472f4c1e01339 |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 2410de3a3dbe45f881f27ac6ba23178e |
| service_name | cinderv3 |
| service_type | volumev3 |
| url | http://node1:8776/v3/%(project_id)s |
+--------------+-------------------------------------+
[root@node1 ~]# openstack endpoint create --region RegionOne volumev3 internal http://node1:8776/v3/%\(project_id\)s
+--------------+-------------------------------------+
| Field | Value |
+--------------+-------------------------------------+
| enabled | True |
| id | 14ad3059eb8849c6b5c531e8379a660d |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 2410de3a3dbe45f881f27ac6ba23178e |
| service_name | cinderv3 |
| service_type | volumev3 |
| url | http://node1:8776/v3/%(project_id)s |
+--------------+-------------------------------------+
[root@node1 ~]# openstack endpoint create --region RegionOne volumev3 admin http://node1:8776/v3/%\(project_id\)s
+--------------+-------------------------------------+
| Field | Value |
+--------------+-------------------------------------+
| enabled | True |
| id | aa24ffb743124012b3a662ed5a57245e |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 2410de3a3dbe45f881f27ac6ba23178e |
| service_name | cinderv3 |
| service_type | volumev3 |
| url | http://node1:8776/v3/%(project_id)s |
+--------------+-------------------------------------+
---------------------------------------------#安装配置组件
yum install -y openstack-cinder
crudini --set /etc/cinder/cinder.conf database connection mysql+pymysql://cinder:cinder@node1/cinder
crudini --set /etc/cinder/cinder.conf DEFAULT transport_url rabbit://openstack:openstack@node1
crudini --set /etc/cinder/cinder.conf DEFAULT auth_strategy keystone
crudini --set /etc/cinder/cinder.conf DEFAULT my_ip 192.168.31.101
crudini --set /etc/cinder/cinder.conf keystone_authtoken www_authenticate_uri http://node1:5000
crudini --set /etc/cinder/cinder.conf keystone_authtoken auth_url http://node1:5000
crudini --set /etc/cinder/cinder.conf keystone_authtoken memcached_servers node1:11211
crudini --set /etc/cinder/cinder.conf keystone_authtoken auth_type password
crudini --set /etc/cinder/cinder.conf keystone_authtoken project_domain_name default
crudini --set /etc/cinder/cinder.conf keystone_authtoken user_domain_name default
crudini --set /etc/cinder/cinder.conf keystone_authtoken project_name service
crudini --set /etc/cinder/cinder.conf keystone_authtoken username cinder
crudini --set /etc/cinder/cinder.conf keystone_authtoken password cinder
crudini --set /etc/cinder/cinder.conf oslo_concurrency lock_path /var/lib/cinder/tmp
---------------------------------------------# 初始化数据
su -s /bin/sh -c "cinder-manage db sync" cinder
---------------------------------------------#
crudini --set /etc/nova/nova.conf cinder os_region_name RegionOne
---------------------------------------------# 启动服务
systemctl restart openstack-nova-api.service
systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service
systemctl start openstack-cinder-api.service openstack-cinder-scheduler.service2.安装块存储服务cinder（存储节点，node4/node5）
---------------------------------------------# 安装配置存储组件，在node4和node5上操作，用于提供lvm后端存储
yum -y install lvm2 device-mapper-persistent-data
# 将两个200G的硬盘创建pv，vg
pvcreate /dev/sdb
pvcreate /dev/sdc
vgcreate cinder-volumes /dev/sdb /dev/sdc
# 修改配置文件
vim /etc/lvm/lvm.conf
devices {
...
filter = [ "a/sdb/", "a/sdc/", "r/.*/"]
---------------------------------------------#安装配置组件，在node4和node5上操作
yum install -y openstack-cinder targetcli python3-keystone
crudini --set /etc/cinder/cinder.conf database connection mysql+pymysql://cinder:cinder@node1/cinder
crudini --set /etc/cinder/cinder.conf DEFAULT transport_url rabbit://openstack:openstack@node1
crudini --set /etc/cinder/cinder.conf DEFAULT auth_strategy keystone
crudini --set /etc/cinder/cinder.conf DEFAULT my_ip 192.168.31.104 # 主机IP，192.168.31.104，105
crudini --set /etc/cinder/cinder.conf DEFAULT enabled_backends lvm,nfs # 这里对接lvm和nfs后端存储，后面有文章专门讲如何对接ceph
crudini --set /etc/cinder/cinder.conf DEFAULT glance_api_servers http://node1:9292
crudini --set /etc/cinder/cinder.conf www_authenticate_uri http://node1:5000
crudini --set /etc/cinder/cinder.conf auth_url http://node1:5000
crudini --set /etc/cinder/cinder.conf memcached_servers node1:11211
crudini --set /etc/cinder/cinder.conf auth_type password
crudini --set /etc/cinder/cinder.conf project_domain_name default
crudini --set /etc/cinder/cinder.conf user_domain_name default
crudini --set /etc/cinder/cinder.conf project_name service
crudini --set /etc/cinder/cinder.conf username cinder
crudini --set /etc/cinder/cinder.conf password cinder
crudini --set /etc/cinder/cinder.conf lvm volume_driver cinder.volume.drivers.lvm.LVMVolumeDriver
crudini --set /etc/cinder/cinder.conf lvm volume_group cinder-volumes
crudini --set /etc/cinder/cinder.conf lvm target_protocol iscsi
crudini --set /etc/cinder/cinder.conf lvm target_helper lioadm
crudini --set /etc/cinder/cinder.conf lvm volume_backend_name lvm
crudini --set /etc/cinder/cinder.conf nfs volume_driver cinder.volume.drivers.nfs.NfsDriver
crudini --set /etc/cinder/cinder.conf nfs nfs_shares_config /etc/cinder/nfs_shares
crudini --set /etc/cinder/cinder.conf nfs volume_backend_name nfs
crudini --set /etc/cinder/cinder.conf nfs nfs_mount_point_base \$state_path/mnt
crudini --set /etc/cinder/cinder.conf nfs nfs_snapshot_support True # 好像不好使，nfs类型的卷还是无法创建快照
crudini --set /etc/cinder/cinder.conf nfs nas_secure_file_operations false # 好像不好使
crudini --set /etc/cinder/cinder.conf nfs nas_secure_file_permissions false # 好像不好使
crudini --set /etc/cinder/cinder.conf oslo_concurrency lock_path /var/lib/cinder/tmp
---设置nfs作为后端存储的配置
echo "192.168.31.101:/vmdata" >> /etc/cinder/nfs_shares
chown root.cinder /etc/cinder/nfs_shares
chmod 640 /etc/cinder/nfs_shares
--- 控制节点node1执行，创建卷类型lvm和nfs，默认类型为__DEFAULT__会自动选择lvm
cinder type-create lvm
cinder type-create nfs
cinder type-key lvm set volume_backend_name=lvm
cinder type-key nfs set volume_backend_name=nfs
---------------------------------------------# 启动服务，在node4和node5上操作
systemctl enable openstack-cinder-volume.service target.service
systemctl start openstack-cinder-volume.service target.service
---------------------------------------------# 验证，在node1上操作
[root@node1 ~]# . admin-openrc
[root@node1 ~]# openstack volume service list
+------------------+-----------+------+---------+-------+----------------------------+
| Binary | Host | Zone | Status | State | Updated At |
+------------------+-----------+------+---------+-------+----------------------------+
| cinder-scheduler | node1 | nova | enabled | up | 2022-03-01T09:18:46.000000 |
| cinder-volume | node5@lvm | nova | enabled | up | 2022-03-01T09:18:44.000000 |
| cinder-volume | node5@nfs | nova | enabled | up | 2022-03-01T09:18:48.000000 |
| cinder-volume | node4@lvm | nova | enabled | up | 2022-03-01T09:18:48.000000 |
| cinder-volume | node4@nfs | nova | enabled | up | 2022-03-01T09:18:43.000000 |
+------------------+-----------+------+---------+-------+----------------------------+
[root@node1 ~]# openstack volume create --size 1 volume1
+---------------------+--------------------------------------+
| Field | Value |
+---------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| consistencygroup_id | None |
| created_at | 2022-03-01T09:19:02.000000 |
| description | None |
| encrypted | False |
| id | faf6fdba-d607-4765-8e42-5306ad49bbcc |
| migration_status | None |
| multiattach | False |
| name | volume1 |
| properties | |
| replication_status | None |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| type | __DEFAULT__ |
| updated_at | None |
| user_id | 5a44718261844cbd8a65621b9e3cea8d |
+---------------------+--------------------------------------+
[root@node1 ~]# openstack volume list
+--------------------------------------+---------+-----------+------+-------------+
| ID | Name | Status | Size | Attached to |
+--------------------------------------+---------+-----------+------+-------------+
| faf6fdba-d607-4765-8e42-5306ad49bbcc | volume1 | available | 1 | |
+--------------------------------------+---------+-----------+------+-------------+
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