OpenStack Block Storage服务（Cinder）将持久存储添加到虚拟机。块存储提供用于管理卷的基础结构，并与OpenStack Compute交互以为实例提供卷。该服务还可以管理卷快照和卷类型。
块存储服务包含以下组件：
- cinderAPI
- 接受API请求，并将它们路由到
cinder-volumefor操作。 - cinder卷
- 直接与Block Storage服务以及诸如之后的进程交互
cinder-scheduler。它还通过消息队列与这些进程交互。该cinder-volume服务响应发送到块存储服务的读写请求以维持状态。它可以通过驱动程序体系结构与各种存储提供程序进行交互。 - cinder-scheduler守护进程
- 选择要在其上创建卷的最佳存储提供程序节点。一个类似的组成部分
nova-scheduler。 - cinder-backup守护进程
- 该
cinder-backup服务为备份存储提供程序提供任何类型的备份卷。与cinder-volume服务一样，它可以通过驱动程序体系结构与各种存储提供程序进行交互。 - 消息队列
- 消息队列在块存储进程之间路由信息。
- 我们需要在存储节点添加一块硬盘sdb
- 我们先配置控制节点
- 1.创建cinder数据库；
mysql> CREATE DATABASE cinder; Query OK, 1 row affected (0.00 sec) mysql> GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'localhost' -> IDENTIFIED BY '123'; Query OK, 0 rows affected, 1 warning (0.15 sec) mysql> GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' -> IDENTIFIED BY '123'; Query OK, 0 rows affected, 1 warning (0.00 sec)
2.创建cinder用户；
[root@sxb1 ~]# openstack user create --domain default --password-prompt cinder User Password: Repeat User Password: +---------------------+----------------------------------+ | Field | Value | +---------------------+----------------------------------+ | domain_id | default | | enabled | True | | id | c14cbc9906274a968452fbe7a3f67474 | | name | cinder | | options | {} | | password_expires_at | None | +---------------------+----------------------------------+
3.将admin角色添加到cinder用户；
[root@sxb1 ~]# openstack role add --project service --user cinder admin
4.创建cinder服务cinderv2、cinderv3（因为有两个版本）；
[root@sxb1 ~]# openstack service create --name cinderv2 > --description "OpenStack Block Storage" volumev2 +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | OpenStack Block Storage | | enabled | True | | id | 049c3b344b134b5695a7223658a0c625 | | name | cinderv2 | | type | volumev2 | +-------------+----------------------------------+
[root@sxb1 ~]# openstack service create --name cinderv3 > --description "OpenStack Block Storage" volumev3 +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | OpenStack Block Storage | | enabled | True | | id | 896ebdd517f44b45bc9c5beb9e7e3192 | | name | cinderv3 | | type | volumev3 | +-------------+----------------------------------+
5.创建Block Storage服务API端点；
卷2
[root@sxb1 ~]# openstack endpoint create --region RegionOne volumev2 public http://192.168.88.101:8776/v2/%(project_id)s^C [root@sxb1 ~]# openstack endpoint create --region RegionOne volumev2 internal http://192.168.88.101:8776/v2/%(project_id)s^C [root@sxb1 ~]# openstack endpoint create --region RegionOne volumev2 admin http://192.168.88.101:8776/v2/%(project_id)s
卷3
[root@sxb1 ~]# openstack endpoint create --region RegionOne volumev3 public http://192.168.88.101:8776/v3/%(project_id)s^C [root@sxb1 ~]# openstack endpoint create --region RegionOne volumev3 internal http://192.168.88.101:8776/v3/%(project_id)s^C [root@sxb1 ~]# openstack endpoint create --region RegionOne volumev3 admin http://192.168.88.101:8776/v3/%(project_id)s
6.安装cinder相关组件；
[root@sxb1 ~]# yum install openstack-cinder -y
7.配置cinder文件；
[root@sxb1 ~]# vim /etc/cinder/cinder.conf [DEFAULT] transport_url = rabbit://openstack:123@192.168.88.101 auth_strategy = keystone [database] connection = mysql+pymysql://cinder:123@192.168.88.101/cinder [keystone_authtoken] www_authenticate_uri = http://192.168.88.101:5000 auth_url = http://192.168.88.101:5000 memcached_servers = 192.168.88.101:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = cinder password = 123 [oslo_concurrency] lock_path = /var/lib/cinder/tmp
8.初始化数据库（返回信息不用管）；
[root@sxb1 ~]# su -s /bin/sh -c "cinder-manage db sync" cinder Deprecated: Option "logdir" from group "DEFAULT" is deprecated. Use option "log-dir" from group "DEFAULT".
9.配置nova文件；
[root@sxb1 ~]# vim /etc/nova/nova.conf
[cinder]
os_region_name = RegionOne
10.重启nova服务；
[root@sxb1 ~]# systemctl restart openstack-nova-api.service
11.启动控制节点cinder服务（status查看服务状态）；
[root@sxb1 ~]# systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-cinder-api.service to /usr/lib/systemd/system/openstack-cinder-api.service. Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-cinder-scheduler.service to /usr/lib/systemd/system/openstack-cinder-scheduler.service. [root@sxb1 ~]# systemctl start openstack-cinder-api.service openstack-cinder-scheduler.service
我们来配置存储节点
1.安装cinder相关组件；
[root@sxb3 ~]# yum install lvm2 device-mapper-persistent-data -y
2.启动cinder服务；
[root@sxb3 ~]# systemctl enable lvm2-lvmetad.service [root@sxb3 ~]# systemctl start lvm2-lvmetad.service [root@sxb3 ~]# systemctl status lvm2-lvmetad.service ● lvm2-lvmetad.service - LVM2 metadata daemon Loaded: loaded (/usr/lib/systemd/system/lvm2-lvmetad.service; static; vendor preset: enabled) Active: active (running) since Mon 2019-09-09 07:28:32 EDT; 47min ago Docs: man:lvmetad(8) Main PID: 519 (lvmetad) CGroup: /system.slice/lvm2-lvmetad.service └─519 /usr/sbin/lvmetad -f Sep 09 07:28:32 sxb3.103.com systemd[1]: Started LVM2 metadata daemon.
3.创建一个LVM；
[root@sxb3 ~]# pvcreate /dev/sdb Physical volume "/dev/sdb" successfully created. [root@sxb3 ~]# vgcreate cinder-volumes /dev/sdb Volume group "cinder-volumes" successfully created
4.配置lvm文件；
[root@sxb3 ~]# vim /etc/lvm/lvm.conf devices { filter = [ "a/sdb/", "r/.*/"]
5.安装组件；
[root@sxb3 ~]# yum install openstack-cinder targetcli python-keystone -y
6.配置cinder文件；
[lvm] volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver volume_group = cinder-volumes target_protocol = iscsi target_helper = lioadm [DEFAULT] transport_url = rabbit://openstack:123@192.168.88.101 auth_strategy = keystone my_ip = 192.168.88.103 enabled_backends = lvm glance_api_servers = http://192.168.88.101:9292 [database] connection = mysql+pymysql://cinder:123@192.168.88.101/cinder [keystone_authtoken] www_authenticate_uri = http://192.168.88.101:5000 auth_url = http://192.168.88.101:5000 memcached_servers = 192.168.88.101:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = cinder password = 123 [oslo_concurrency] lock_path = /var/lib/cinder/tmp
7.启动cinder服务（status查看服务状态）；
[root@sxb3 ~]# systemctl enable openstack-cinder-volume.service target.service Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-cinder-volume.service to /usr/lib/systemd/system/openstack-cinder-volume.service. Created symlink from /etc/systemd/system/multi-user.target.wants/target.service to /usr/lib/systemd/system/target.service. [root@sxb3 ~]# systemctl start openstack-cinder-volume.service target.service [root@sxb3 ~]# systemctl status openstack-cinder-volume.service target.service ● openstack-cinder-volume.service - OpenStack Cinder Volume Server Loaded: loaded (/usr/lib/systemd/system/openstack-cinder-volume.service; enabled; vendor preset: disabled) Active: active (running) since Mon 2019-09-09 08:53:33 EDT; 7s ago Main PID: 2592 (cinder-volume) CGroup: /system.slice/openstack-cinder-volume.service ├─2592 /usr/bin/python2 /usr/bin/cinder-volume --config-file /usr/sha... └─2631 /usr/bin/python2 /usr/bin/cinder-volume --config-file /usr/sha... Sep 09 08:53:33 sxb3.103.com systemd[1]: Started OpenStack Cinder Volume Server. Sep 09 08:53:37 sxb3.103.com cinder-volume[2592]: Deprecated: Option "logdir" f.... Sep 09 08:53:39 sxb3.103.com sudo[2632]: cinder : TTY=unknown ; PWD=/ ; USER...on Sep 09 08:53:39 sxb3.103.com sudo[2640]: cinder : TTY=unknown ; PWD=/ ; USER...es Sep 09 08:53:39 sxb3.103.com sudo[2649]: cinder : TTY=unknown ; PWD=/ ; USER...ol Sep 09 08:53:39 sxb3.103.com sudo[2658]: cinder : TTY=unknown ; PWD=/ ; USER...on Sep 09 08:53:40 sxb3.103.com sudo[2668]: cinder : TTY=unknown ; PWD=/ ; USER...es Sep 09 08:53:40 sxb3.103.com sudo[2677]: cinder : TTY=unknown ; PWD=/ ; USER...ol ● target.service - Restore LIO kernel target configuration Loaded: loaded (/usr/lib/systemd/system/target.service; enabled; vendor preset: disabled) Active: active (exited) since Mon 2019-09-09 08:53:33 EDT; 7s ago Process: 2593 ExecStart=/usr/bin/targetctl restore (code=exited, status=0/SUCCESS) Main PID: 2593 (code=exited, status=0/SUCCESS) Sep 09 08:53:33 sxb3.103.com systemd[1]: Starting Restore LIO kernel target co..... Sep 09 08:53:33 sxb3.103.com target[2593]: No saved config file at /etc/target/...g Sep 09 08:53:33 sxb3.103.com systemd[1]: Started Restore LIO kernel target con...n. Hint: Some lines were ellipsized, use -l to show in full.
验证：
[root@sxb1 ~]# openstack volume service list +------------------+------------------+------+---------+-------+----------------------------+ | Binary | Host | Zone | Status | State | Updated At | +------------------+------------------+------+---------+-------+----------------------------+ | cinder-scheduler | sxb1.101.com | nova | enabled | up | 2019-09-09T13:31:14.000000 | | cinder-volume | sxb3.103.com@lvm | nova | enabled | up | 2019-09-09T13:31:18.000000 | +------------------+------------------+------+---------+-------+----------------------------+