本篇文章是本系列的第三篇文章，將繼續進行OpenStack映象服務的安裝

四、安裝映象服務

4.1 （控制節點）配置映象資料庫

• 連線資料庫

# mysql -u root -pfuai123

• 建立glance資料庫並設定訪問許可權

MariaDB [(none)]> CREATE DATABASE glance;

MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' \
  IDENTIFIED BY 'fuai123';

MariaDB [(none)]> GRANT ALL PRIVILEGES ON
 
 glance.* TO 'glance'@'%' \
  IDENTIFIED BY 'fuai123';

4.2 （控制節點）建立glance認證相關資訊

• 設定admin環境變數

# . admin-openrc

• 建立glance使用者

密碼我設定的fuai123

# openstack user create --domain default --password-prompt glance

User Password:
Repeat User Password:
+---------------------+----------------------------------+
 

| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 0bf68fa1a87c4760859f9f34697a8753 |
| name                | glance                           |
| options             | {}                               |
| password_
 
expires_at | None                             |
+---------------------+----------------------------------+

• 將glance使用者加入service專案，並設定admin角色

# openstack role add --project service --user glance admin

• 建立映象服務

# openstack service create --name glance \
  --description "OpenStack Image" image

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Image                  |
| enabled     | True                             |
| id          | 520b45f9c795468ab50a5c7c363babef |
| name        | glance                           |
| type        | image                            |
+-------------+----------------------------------+

• 建立映象api埠

# openstack endpoint create --region RegionOne \
  image public http://controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | ff8c65b2d96c4329a85954ed4ac13853 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 520b45f9c795468ab50a5c7c363babef |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

# openstack endpoint create --region RegionOne \
  image internal http://controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 5d930d23645541b3ad76c9bb29426519 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 520b45f9c795468ab50a5c7c363babef |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

# openstack endpoint create --region RegionOne \
  image admin http://controller:9292

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | e0fc9759fb7b4d4790d225aaedcdcf31 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 520b45f9c795468ab50a5c7c363babef |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

4.3 （控制節點）安裝軟體包並配置配置檔案

• 安裝軟體包

# yum install openstack-glance -y

• 編輯/etc/glance/glance-api.conf檔案並完成下面配置

[database]
connection = mysql+pymysql://glance:[email protected]/glance
...

[keystone_authtoken]
auth_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 = fuai123
...

[paste_deploy]
flavor = keystone
...

[glance_store]
stores = file,http
default_store = file
filesystem_store_datadir = /var/lib/glance/images/
...

• 編輯/etc/glance/glance-registry.conf檔案，完成以下配置

[database]
connection = mysql+pymysql://glance:[email protected]/glance
...

[keystone_authtoken]
auth_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 = fuai123
...

[paste_deploy]
flavor = keystone
...

• 同步資料庫

# su -s /bin/sh -c "glance-manage db_sync" glance

4.4 （控制節點）設定服務的開機自啟動，並啟動服務

• 設定服務自啟，並啟動服務

# systemctl enable openstack-glance-api.service \
  openstack-glance-registry.service
# systemctl start openstack-glance-api.service \
  openstack-glance-registry.service

4.5 （控制節點）驗證操作
- 設定環境變數

# . admin-openrc

• 下載映象

# yum install wget -y
# wget http://download.cirros-cloud.net/0.3.5/cirros-0.3.5-x86_64-disk.img

• 上傳映象

# openstack image create "cirros" \
  --file cirros-0.3.5-x86_64-disk.img \
  --disk-format qcow2 --container-format bare \
  --public

+------------------+------------------------------------------------------+
| Field            | Value                                                |
+------------------+------------------------------------------------------+
| checksum         | f8ab98ff5e73ebab884d80c9dc9c7290                     |
| container_format | bare                                                 |
| created_at       | 2018-04-25T12:13:57Z                                 |
| disk_format      | qcow2                                                |
| file             | /v2/images/0466e837-7d0c-4ebd-a2a1-194e80635d98/file |
| id               | 0466e837-7d0c-4ebd-a2a1-194e80635d98                 |
| min_disk         | 0                                                    |
| min_ram          | 0                                                    |
| name             | cirros                                               |
| owner            | c4e73f33137b49dcb1ff949f3d95de36                     |
| protected        | False                                                |
| schema           | /v2/schemas/image                                    |
| size             | 13267968                                             |
| status           | active                                               |
| tags             |                                                      |
| updated_at       | 2018-04-25T12:14:58Z                                 |
| virtual_size     | None                                                 |
| visibility       | public                                               |
+------------------+------------------------------------------------------+

• 確認下映象是否成功上傳

# openstack image list

+--------------------------------------+--------+--------+
| ID                                   | Name   | Status |
+--------------------------------------+--------+--------+
| 0466e837-7d0c-4ebd-a2a1-194e80635d98 | cirros | active |
+--------------------------------------+--------+--------+

至此，OpenStack映象服務已經安裝驗證完成，下面將進行計算服務等元件的安裝，具體請參見文章《OpenStack（Queens）詳細安裝部署（四）－計算服務（nova）安裝》

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