cinder-api: 接收和响应外部有关块存储请求
cinder-volume： 提供存储空间
cinder-scheduler：调度器，决定将要分配的空间由哪一个cinder-volume提供
cinder-backup： 备份存储
注意cinder是安装在控制节点上的，所以下面的操作都是在控制节点

　　还是创建数据库并授权

CREATE DATABASE cinder;
GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'localhost' \
  IDENTIFIED BY 'CINDER_DBPASS';
GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' \
  IDENTIFIED BY 'CINDER_DBPASS';

　　在keystone创建系统用户(glance,nova,neutron,cinder)关联角色

openstack user create --domain default --password CINDER_PASS cinder
openstack role add --project service --user cinder admin

　　创建了两个服务实体，一个是v1一个是v2，这样做的目的是为了向历史兼容

openstack service create --name cinder \
  --description "OpenStack Block Storage" volume
openstack service create --name cinderv2 \
  --description "OpenStack Block Storage" volumev2
openstack endpoint create --region RegionOne \
  volume public http://controller:8776/v1/%\(tenant_id\)s
openstack endpoint create --region RegionOne \
  volume internal http://controller:8776/v1/%\(tenant_id\)s
openstack endpoint create --region RegionOne \
  volume admin http://controller:8776/v1/%\(tenant_id\)s
openstack endpoint create --region RegionOne \
  volumev2 public http://controller:8776/v2/%\(tenant_id\)s
openstack endpoint create --region RegionOne \
  volumev2 internal http://controller:8776/v2/%\(tenant_id\)s
openstack endpoint create --region RegionOne \
  volumev2 admin http://controller:8776/v2/%\(tenant_id\)s

　　可以看到cinder的端口是8776.

　　现在是安装软件包了：

yum install openstack-cinder

　　现在是修改配置文件：

cp /etc/cinder/cinder.conf{,.bak}
grep -Ev '^$|#' /etc/cinder/cinder.conf.bak >/etc/cinder/cinder.conf
openstack-config --set /etc/cinder/cinder.conf   DEFAULT  rpc_backend  rabbit
openstack-config --set /etc/cinder/cinder.conf   DEFAULT  auth_strategy  keystone
openstack-config --set /etc/cinder/cinder.conf   DEFAULT  my_ip  10.0.0.11
openstack-config --set /etc/cinder/cinder.conf   database connection mysql+pymysql://cinder:CINDER_DBPASS@controller/cinder
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   auth_uri  http://controller:5000
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   auth_url  http://controller:35357
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   memcached_servers  controller:11211
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   auth_type  password
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   project_domain_name  default
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   user_domain_name  default
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   project_name  service
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   username  cinder
openstack-config --set /etc/cinder/cinder.conf   keystone_authtoken   password  CINDER_PASS
openstack-config --set /etc/cinder/cinder.conf   oslo_concurrency  lock_path  /var/lib/cinder/tmp
openstack-config --set /etc/cinder/cinder.conf   oslo_messaging_rabbit  rabbit_host  controller
openstack-config --set /etc/cinder/cinder.conf   oslo_messaging_rabbit  rabbit_userid  openstack
openstack-config --set /etc/cinder/cinder.conf   oslo_messaging_rabbit  rabbit_password  RABBIT_PASS

　　配置修改完成之后同步数据库：

su -s /bin/sh -c "cinder-manage db sync" cinder

　　数据库同步完成的结果如图所示

　　现在还需要在控制节点的nova配置文件，修改一下cinder区域的一个内容：

vim /etc/nova/nova.conf
[cinder]
os_region_name = RegionOne

　　在cinder里面加入os_region_name = RegionOne，然后重启nova服务。

　　现在重启一下各个服务：

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.service

　　重启完之后重新登录web端就可以看到管理员里面多了一个卷服务：

　　检查cinder服务有没有OK：

[root@controller ~]# cinder service-list
+------------------+------------+------+---------+-------+----------------------------+-----------------+
|      Binary      |    Host    | Zone |  Status | State |         Updated_at         | Disabled Reason |
+------------------+------------+------+---------+-------+----------------------------+-----------------+
| cinder-scheduler | controller | nova | enabled |   up  | 2020-08-07T07:15:39.000000 |        -        |
+------------------+------------+------+---------+-------+----------------------------+-----------------+