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本節(jié)教程將介紹如何在塊控制器節(jié)點(diǎn)上安裝和配置名為 Cinder 的存儲(chǔ)服務(wù)。該服務(wù)至少需要一個(gè)額外的存儲(chǔ)節(jié)點(diǎn)，以便提供卷的復(fù)制功能到實(shí)例。

一、先決條件

在安裝和配置 Block Storage 服務(wù)之前，需要完成以下步驟以創(chuàng)建數(shù)據(jù)庫、服務(wù)憑證和 API 終端節(jié)點(diǎn)。

1、創(chuàng)建數(shù)據(jù)庫

使用數(shù)據(jù)庫訪問客戶端連接到數(shù)據(jù)庫服務(wù)器，作為用戶 “root”：

mysql -u root -p

創(chuàng)建數(shù)據(jù)庫：

MariaDB [(none)]> CREATE DATABASE cinder;

授予對數(shù)據(jù)庫的適當(dāng)訪問權(quán)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';

請將 “CINDER_DBPASS” 替換為選擇的合適密碼。然后退出數(shù)據(jù)庫訪問客戶端。

2、獲取管理員訪問憑據(jù)

在命令行中獲取管理員憑據(jù)：

. admin-openrc

3、創(chuàng)建服務(wù)憑證

完成以下步驟以創(chuàng)建 Cinder 服務(wù)憑證：

創(chuàng)建用戶 “cinder”：

openstack?user?create?--domain?default?--password-prompt?cinder

User?Password:
Repeat?User?Password:
+---------------------+----------------------------------+
|?Field???????????????|?Value????????????????????????????|
+---------------------+----------------------------------+
|?domain_id???????????|?default??????????????????????????|
|?enabled?????????????|?True?????????????????????????????|
|?id??????????????????|?9d7e33de3e1a498390353819bc7d245d?|
|?name????????????????|?cinder???????????????????????????|
|?options?????????????|?{}???????????????????????????????|
|?password_expires_at?|?None?????????????????????????????|
+---------------------+----------------------------------+

輸入用戶密碼并確認(rèn)。

將角色 “admin” 添加到用戶 “cinder”：

openstack role add --project service --user cinder admin

注意：此命令執(zhí)行后不會(huì)提供任何輸出。

創(chuàng)建服務(wù)實(shí)體 “cinderv3″：

openstack?service?create?--name?cinderv3?\
??--description?"OpenStack?Block?Storage"?volumev3

+-------------+----------------------------------+
|?Field???????|?Value????????????????????????????|
+-------------+----------------------------------+
|?description?|?OpenStack?Block?Storage??????????|
|?enabled?????|?True?????????????????????????????|
|?id??????????|?ab3bbbef780845a1a283490d281e7fda?|
|?name????????|?cinderv3?????????????????????????|
|?type????????|?volumev3?????????????????????????|
+-------------+----------------------------------+

注意：從 Xena 版本開始，塊存儲(chǔ)服務(wù)僅需要一個(gè)服務(wù)實(shí)體。對于以前的版本，請查看該特定版本的文檔。

4、創(chuàng)建 Block Storage 服務(wù) API 端點(diǎn)：

openstack?endpoint?create?--region?RegionOne?\
??volumev3?public?http://controller:8776/v3/%\(project_id\)s

+--------------+------------------------------------------+
|?Field????????|?Value????????????????????????????????????|
+--------------+------------------------------------------+
|?enabled??????|?True?????????????????????????????????????|
|?id???????????|?03fa2c90153546c295bf30ca86b1344b?????????|
|?interface????|?public???????????????????????????????????|
|?region???????|?RegionOne????????????????????????????????|
|?region_id????|?RegionOne????????????????????????????????|
|?service_id???|?ab3bbbef780845a1a283490d281e7fda?????????|
|?service_name?|?cinderv3?????????????????????????????????|
|?service_type?|?volumev3?????????????????????????????????|
|?url??????????|?http://controller:8776/v3/%(project_id)s?|
+--------------+------------------------------------------+

$?openstack?endpoint?create?--region?RegionOne?\
??volumev3?internal?http://controller:8776/v3/%\(project_id\)s

+--------------+------------------------------------------+
|?Field????????|?Value????????????????????????????????????|
+--------------+------------------------------------------+
|?enabled??????|?True?????????????????????????????????????|
|?id???????????|?94f684395d1b41068c70e4ecb11364b2?????????|
|?interface????|?internal?????????????????????????????????|
|?region???????|?RegionOne????????????????????????????????|
|?region_id????|?RegionOne????????????????????????????????|
|?service_id???|?ab3bbbef780845a1a283490d281e7fda?????????|
|?service_name?|?cinderv3?????????????????????????????????|
|?service_type?|?volumev3?????????????????????????????????|
|?url??????????|?http://controller:8776/v3/%(project_id)s?|
+--------------+------------------------------------------+

$?openstack?endpoint?create?--region?RegionOne?\
??volumev3?admin?http://controller:8776/v3/%\(project_id\)s

+--------------+------------------------------------------+
|?Field????????|?Value????????????????????????????????????|
+--------------+------------------------------------------+
|?enabled??????|?True?????????????????????????????????????|
|?id???????????|?4511c28a0f9840c78bacb25f10f62c98?????????|
|?interface????|?admin????????????????????????????????????|
|?region???????|?RegionOne????????????????????????????????|
|?region_id????|?RegionOne????????????????????????????????|
|?service_id???|?ab3bbbef780845a1a283490d281e7fda?????????|
|?service_name?|?cinderv3?????????????????????????????????|
|?service_type?|?volumev3?????????????????????????????????|
|?url??????????|?http://controller:8776/v3/%(project_id)s?|
+--------------+------------------------------------------+

二、安裝和配置組件

1、安裝所需軟件包：

zypper install openstack-cinder-api openstack-cinder-scheduler

2、編輯配置文件 “/etc/cinder/cinder.conf”，并完成以下部分：

配置數(shù)據(jù)庫訪問：

[database]
# ...
connection = mysql+pymysql://cinder:CINDER_DBPASS@controller/cinder

替換 “CINDER_DBPASS” 為為 Block Storage 數(shù)據(jù)庫設(shè)置的密碼。

配置消息隊(duì)列訪問：

[DEFAULT]
# ...
transport_url = rabbit://openstack:RABBIT_PASS@controller

替換 “RABBIT_PASS” 為在 RabbitMQ 中為 “openstack” 帳戶選擇的密碼。

配置 Identity Service 訪問：

[DEFAULT]
# ...
auth_strategy = keystone
[keystone_authtoken]
# ...
www_authenticate_uri = http://controller:5000
auth_url = http://controller:5000
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = cinder
password = CINDER_PASS

替換 “CINDER_PASS” 為 Identity 服務(wù)中的用戶 “cinder” 的密碼。

注意：請確保注釋掉或刪除 “[keystone_authtoken]” 部分中的任何其他選項(xiàng)。

配置控制器節(jié)點(diǎn)的管理接口 IP 地址：

[DEFAULT]
# ...
my_ip = 10.0.0.11

配置鎖定路徑：

[oslo_concurrency]
# ...
lock_path = /var/lib/cinder/tmp

三、配置Compute以使用Block Storage

編輯文件 “/etc/nova/nova.conf” 并添加以下內(nèi)容：

[cinder]
os_region_name = RegionOne

四、完成安裝

1、重新啟動(dòng) Compute API 服務(wù)：

systemctl restart openstack-nova-api.service

2、啟動(dòng) Block Storage 服務(wù)并將其配置為在系統(tǒng)啟動(dòng)時(shí)自動(dòng)啟動(dòng)：

systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service
systemctl start openstack-cinder-api.service openstack-cinder-scheduler.service