cinder以挂接的方式加入到现有的openstack环境中。
cinder块存储服务需要至少一个额外的存储节点，该节点为实例提供卷。
本实验搭建一个专门的存储节点及使用其之上的一块空白磁盘（/dev/sdb），以卷的形式，向实例提供数据盘。
安装好存储节点的centos系统，并配置好IP和主机名，编辑hosts文件加入主机解析等。
存储节点的管理网络的ip地址为192.168.10.44，主机名是b1。
安装和配置控制器节点
创建数据库
mysql -u root -p
创建cinder数据库
MariaDB [(none)]> CREATE DATABASE cinder;
授予对cinder数据库的适当访问权限
MariaDB [(none)]> GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'localhost' IDENTIFIED BY 'CINDER_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' IDENTIFIED BY 'CINDER_DBPASS';
MariaDB [(none)]> exit;
创建服务凭证
. admin-openrc
创建cinder用户
openstack user create --domain default --password CINDER_PASS cinder
向cinder用户添加admin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
openstack endpoint create --region RegionOne volumev2 public http://ct:8776/v2/%(project_id)s
openstack endpoint create --region RegionOne volumev2 internal http://ct:8776/v2/%(project_id)s
openstack endpoint create --region RegionOne volumev2 admin http://ct:8776/v2/%(project_id)s
openstack endpoint create --region RegionOne volumev3 public http://ct:8776/v3/%(project_id)s
openstack endpoint create --region RegionOne volumev3 internal http://ct:8776/v3/%(project_id)s
openstack endpoint create --region RegionOne volumev3 admin http://ct:8776/v3/%(project_id)s
安装软件包
yum install openstack-cinder
cp /etc/cinder/cinder.conf /etc/cinder/cinder.conf.bak
grep -Ev '#|^$' /etc/cinder/cinder.conf.bak>/etc/cinder/cinder.conf
vim /etc/cinder/cinder.conf
[database]
connection = mysql+pymysql://cinder:CINDER_DBPASS@ct/cinder
[DEFAULT]
transport_url = rabbit://openstack:RABBIT_PASS@ct
auth_strategy = keystone
my_ip = 192.168.10.41
[keystone_authtoken]
www_authenticate_uri = http://ct:5000
auth_url = http://ct:5000
memcached_servers = ct:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = cinder
password = CINDER_PASS
[oslo_concurrency]
lock_path = /var/lib/cinder/tmp
填充块存储数据库
su -s /bin/sh -c "cinder-manage db sync" cinder
配置计算以使用块存储
vim /etc/nova/nova.conf
[oslo_concurrency]
os_region_name = RegionOne
重新启动Compute API服务
systemctl restart openstack-nova-api.service
启动块存储服务，并将其配置为在系统启动时启动
systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service
systemctl start openstack-cinder-api.service openstack-cinder-scheduler.service
安装和配置存储节点
存储节点的管理网络的ip地址为192.168.10.44
安装LVM软件包
yum install lvm2 device-mapper-persistent-data
启动LVM元数据服务，并将其配置为在系统引导时启动
systemctl enable lvm2-lvmetad.service
systemctl start lvm2-lvmetad.service
创建LVM物理卷/dev/sdb
pvcreate /dev/sdb
创建LVM卷组cinder-volumes
vgcreate cinder-volumes /dev/sdb
将LVM重新配置为仅扫描包含cinder-volumes卷组的设备
vim /etc/lvm/lvm.conf
在devices部分中，添加一个接受/dev/sdb设备并拒绝所有其他设备的过滤器：
devices {
filter = [ "a/sdb/", "r/.*/"]
a用于接受，r用于拒绝。
安装软件包
yum install centos-release-openstack-train -y
yum upgrade -y
yum install python-openstackclient -y
yum install openstack-selinux -y
yum install openstack-cinder targetcli python-keystone -y
修改配置文件
cp /etc/cinder/cinder.conf /etc/cinder/cinder.conf.bak
grep -Ev '#|^$' /etc/cinder/cinder.conf.bak>/etc/cinder/cinder.conf
vim /etc/cinder/cinder.conf
[database]
connection = mysql+pymysql://cinder:CINDER_DBPASS@ct/cinder
[DEFAULT]
transport_url = rabbit://openstack:RABBIT_PASS@ct
auth_strategy = keystone
my_ip = 192.168.10.44
enabled_backends = lvm
glance_api_servers = http://ct:9292
[keystone_authtoken]
www_authenticate_uri = http://ct:5000
auth_url = http://ct:5000
memcached_servers = ct:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = cinder
password = CINDER_PASS
[lvm]
volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
volume_group = cinder-volumes
target_protocol = iscsi
target_helper = lioadm
[oslo_concurrency]
lock_path = /var/lib/cinder/tmp
启动块存储卷服务及其相关，并将其配置为在系统启动时启动：
systemctl enable openstack-cinder-volume.service target.service
systemctl start openstack-cinder-volume.service target.service
验证cinder块存储服务
. admin-openrc
openstack volume service list
使用块存储服务向实例提供数据盘
创建卷（volume）
. ygj-openrc
创建一个10 GB的卷：
openstack volume create --size 10 volume1
很短的时间后，卷状态应该从creating 到available
openstack volume list
将卷附加到实例
openstack server add volume INSTANCE_NAME VOLUME_NAME
将volume1卷附加到centos7-instance1实例：
openstack server add volume centos7-instance1 volume1
openstack volume list
使用SSH访问实例，并使用以下fdisk命令验证该卷是否作为/dev/vdb块存储设备：
sudo fdisk -l
分区并格式化新添加的/dev/vdb
fdisk /dev/vdb
mk2fs.ext4 /dev/vdb1