手动部署OpenStack Train双节点（三）

Glance for Train

在Controller节点

1、创建glance数据库

• 这步要为glance数据库创建一个密码
• 把GLANCE_DBPASS替换为数据库glance的密码

[root@controller ~]# mysql -u root -p
Enter password: 
Your MariaDB connection id is 28
Server version: 10.3.20-MariaDB MariaDB Server
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
MariaDB [(none)]> CREATE DATABASE glance;
Query OK, 1 row affected (0.002 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' \
    ->   IDENTIFIED BY 'GLANCE_DBPASS';
Query OK, 0 rows affected (0.003 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' \
    ->   IDENTIFIED BY 'GLANCE_DBPASS';
Query OK, 0 rows affected (0.001 sec)
MariaDB [(none)]> exit
Bye

2、获取admin用户的CLI命令权限

[root@controller ~]# source admin-openrc

3、创建服务凭证

1. 创建一个叫glance的用户

这步要为glance用创建一个密码

[root@controller ~]# openstack user create --domain default \
--password-prompt glance
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 026ea31727f24a759e5e9e0509caed2d |
| name                | glance                           |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

2. 将glance用户、service项目、admin角色绑定

service这个项目是在keystone安装后创建的

[root@controller ~]# openstack role add --project service --user glance admin

3. 创建glance服务实体

[root@controller ~]# openstack service create --name glance \
--description "OpenStack Image" image
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Image                  |
| enabled     | True                             |
| id          | 9fb915f2173a44658f2a20b310cc4ff9 |
| name        | glance                           |
| type        | image                            |
+-------------+----------------------------------+

4、创建API endpoints

[root@controller ~]# openstack endpoint create --region RegionOne \
image public http://controller:9292
[root@controller ~]# openstack endpoint create --region RegionOne \
image internal http://controller:9292
[root@controller ~]# openstack endpoint create --region RegionOne \
image admin http://controller:9292

查看OpenStack服务目录，Image服务已安装：

[root@controller ~]# openstack catalog list
+----------+----------+----------------------------------------+
| Name     | Type     | Endpoints                              |
+----------+----------+----------------------------------------+
| glance   | image    | RegionOne                              |
|          |          |   internal: http://controller:9292     |
|          |          | RegionOne                              |
|          |          |   public: http://controller:9292       |
|          |          | RegionOne                              |
|          |          |   admin: http://controller:9292        |
|          |          |                                        |
| keystone | identity | RegionOne                              |
|          |          |   public: http://controller:5000/v3/   |
|          |          | RegionOne                              |
|          |          |   internal: http://controller:5000/v3/ |
|          |          | RegionOne                              |
|          |          |   admin: http://controller:5000/v3/    |
|          |          |                                        |
+----------+----------+----------------------------------------+

5、安装和配置组件

1. 安装包

[root@controller ~]# yum install openstack-glance -y

2. 修改配置文件

• 把GLANCE_DBPASS替换成glance数据库的密码。
• 配置image服务的镜像存储在本地文件系统。
• 把GLANCE_PASS替换为glance用户的密码。
• 主机名controller可被解析。
• 注释掉[keystone_authtoken]中其他生效行。

[root@controller ~]# vim /etc/glance/glance-api.conf
[database]
connection = mysql+pymysql://glance:GLANCE_DBPASS@controller/glance
[glance_store]
stores = file,http
default_store = file
filesystem_store_datadir = /var/lib/glance/images
[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 = glance
password = GLANCE_PASS
[paste_deploy]
flavor = keystone

3. 初始化glance数据库

[root@controller ~]# su -s /bin/sh -c "glance-manage db_sync" glance

4. 启动服务

[root@controller ~]# systemctl enable --now openstack-glance-api.service
[root@controller ~]# systemctl status openstack-glance-api.service

验证Glance

在Controller节点

需要用到一个Cirros镜像，在这里可以找到你想要的版本：

​​​​http://download.cirros-cloud.net/0.4.0/​​​​

1、获取admin用户CLI命令权限

[root@controller ~]# source admin-openrc

2、下载一个Cirros镜像

也可以下别的版本，替换下载链接：

[root@controller ~]# wget http://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img

3、用glance组件的CLI创建一个镜像

[root@controller ~]# glance image-create --name "cirros" \
--file cirros-0.4.0-x86_64-disk.img \
--disk-format qcow2 --container-format bare \
--visibility public

4、查看创建的image文件

[root@controller ~]# glance image-list
+--------------------------------------+--------+
| ID                                   | Name   |
+--------------------------------------+--------+
| 335e26da-bf19-454c-aad3-34e8ae897202 | cirros |
+--------------------------------------+--------+