Cinder的核心功能是对卷的管理，允许对卷、卷的类型、卷的快照、卷备份进行处理。它为后端不同的存储设备提供给了统一的接口，不同的块设备服务厂商在Cinder中实现其驱动，可以被Openstack整合管理，nova与cinder的工作原理类似。
OpenStack块存储服务为实例通过不同后台提供块存储设备。 块存储 API 和调度服务运行在控制节点。volume 服务运行在一个或多个存储节点。cinder为实例提供本地存储或则 SAN/NAS后台适当的驱动。
安装cindoer块存储服务(控制节点192.168.0.10)
创建cinder数据库并授权
mysql -u root create database cinder; grant all privileges on cinder.* to 'cinder'@'%' identified by 'CINDER_DBPASS';
grant all privileges on cinder.* to 'cinder'@'localhost' identified by 'CINDER_DBPASS';
flush privileges;
创建cinder用户,密码设置为CINDER_PASS
source ~/admin-openrc
openstack user create --domain default --password CINDER_PASS cinder
admin向cinder用户添加角色
openstack role add --project service --user cinder admin
创建cinderv2和cinderv3服务实体
openstack service create --name cinderv2 --description "OpenStack Block Storage" volumev2
openstack service create --name cinderv3 --description "OpenStack Block Storage" volumev3
创建块存储服务API端点
块存储服务需要每个服务实体的端点
openstack endpoint create --region RegionOne volumev2 public http://controller:8776/v2/%\(project_id\)s
openstack endpoint create --region RegionOne volumev2 internal http://controller:8776/v2/%\(project_id\)s
openstack endpoint create --region RegionOne volumev2 admin http://controller:8776/v2/%\(project_id\)s
openstack endpoint create --region RegionOne volumev3 public http://controller:8776/v3/%\(project_id\)s
openstack endpoint create --region RegionOne volumev3 internal http://controller:8776/v3/%\(project_id\)s
openstack endpoint create --region RegionOne volumev3 admin http://controller:8776/v3/%\(project_id\)s
安装cinder软件包并修改配置文件
yum install openstack-cinder -y
编辑配置文件/etc/cinder/cinder.conf
cp /etc/cinder/cinder.conf /etc/cinder/cinder.conf.bak
grep -Ev '#|^$' /etc/cinder/cinder.conf.bak>/etc/cinder/cinder.conf openstack-config --set /etc/cinder/cinder.conf database connection mysql+pymysql://cinder:CINDER_DBPASS@controller/cinder
openstack-config --set /etc/cinder/cinder.conf DEFAULT transport_url rabbit://openstack:RABBIT_PASS@controller
openstack-config --set /etc/cinder/cinder.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/cinder/cinder.conf keystone_authtoken www_authenticate_uri http://controller:5000
openstack-config --set /etc/cinder/cinder.conf keystone_authtoken auth_url http://controller:5000
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 DEFAULT my_ip 192.168.0.10
openstack-config --set /etc/cinder/cinder.conf oslo_concurrency lock_path /var/lib/cinder/tmp
填充块存储数据库
su -s /bin/sh -c "cinder-manage db sync" cinder
配置计算服务以使用块存储
编辑配置文件/etc/nova/nova.conf
openstack-config --set /etc/nova/nova.conf cinder os_region_name RegionOne
重启nova计算和cinder块存储服务并设置开机自启动
systemctl restart openstack-nova-api.service
systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service
systemctl restart openstack-cinder-api.service openstack-cinder-scheduler.service
控制节点验证
[root@controller ~]# cinder service-list
+------------------+------------+------+---------+-------+----------------------------+---------+-----------------+---------------+
| Binary | Host | Zone | Status | State | Updated_at | Cluster | Disabled Reason | Backend State |
+------------------+------------+------+---------+-------+----------------------------+---------+-----------------+---------------+
| cinder-scheduler | controller | nova | enabled | up | 2020-04-26T09:58:18.000000 | - | - | |
+------------------+------------+------+---------+-------+----------------------------+---------+-----------------+---------------+