部署版本：pike
部署环境：CentOS7.6
配置文件中所有controller可修改为控制节点ip地址
配置过程中使用 echo $? 验证命令执行情况
Image Service
图像服务glance
映像服务（glance）使用户能够发现、注册和检索虚拟机映像。它提供了一个REST API，能够查询虚拟机映像元数据并检索实际映像。可以将通过映像服务提供的虚拟机映像存储在各种位置，从简单的文件系统到对象存储系统（如OpenStack对象存储）。
一、先决条件
在安装和配置映像服务之前，必须创建数据库、服务凭据和API端点。
1.创建数据库root访问数据库
[root@controller /]# mysql -u root -p
Enter password:
Welcome to the MariaDB monitor.
创建glance数据库
MariaDB [(none)]> CREATE DATABASE glance;
Query OK, 1 row affected (0.00 sec)
授予对glance数据库的正确访问权限：
MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'controller' \
-> IDENTIFIED BY 'qwer1234';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' \
-> IDENTIFIED BY 'qwer1234';
Query OK, 0 rows affected (0.00 sec)
2.执行 admin 凭据 获得仅限管理员的CLI命令:
[root@controller /]# source /etc/openrc/admin-openrc.sh
3.创建服务凭据
创建glance用户
[root@controller /]# openstack user create --domain default --password-prompt glance
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | 3882fd00aaed4e9e8d60c34d57408223 |
| name | glance |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
将管理员角色添加到glance用户和服务项目：
[root@controller /]# openstack role add --project service --user glance admin
[root@controller /]# echo $?
0
创建glance服务主体
[root@controller/]# openstack service create --name glance \
> --description "OpenStack Image" image
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Image |
| enabled | True |
| id | c098fe26e9e7405188f3e6a83d2a1b07 |
| name | glance |
| type | image |
+-------------+----------------------------------+
4.创建镜像服务API终结点
root@controller/]# openstack endpoint create --region RegionOne \
> image public http://controller:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 95af37c0e5eb485ea127f30fb0466db3 |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c098fe26e9e7405188f3e6a83d2a1b07 |
| service_name | glance |
| service_type | image |
| url | http://controller:9292 |
+--------------+----------------------------------+
root@controller/]# openstack endpoint create --region RegionOne \
> image public http://controller:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 95af37c0e5eb485ea127f30fb0466db3 |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c098fe26e9e7405188f3e6a83d2a1b07 |
| service_name | glance |
| service_type | image |
| url | http://controller:9292 |
+--------------+----------------------------------+
[root@controller/]# openstack endpoint create --region RegionOne \
> image internal http://controller:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 179d8af3926b417c8a5ed3c19fdfc695 |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c098fe26e9e7405188f3e6a83d2a1b07 |
| service_name | glance |
| service_type | image |
| url | http://controller:9292 |
+--------------+----------------------------------+
二、安装和配置组件
1.安装glance软件
[root@controller/]# yum install openstack-glance
2.编辑/etc/glance/glance-api.conf文件及修改内容
[root@controller/]# vim /etc/glance/glance-api.conf
[database]
connection = mysql+pymysql://glance:qwer1234@controller/glance
[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = qwer1234
[paste_deploy]
flavor = keystone
[glance_store]
tores = file,http
default_store = file
filesystem_store_datadir = /var/lib/glance/images/
- 编辑/etc/glance/glance-registry.conf及修改文件内容
[root@controller /]# vim /etc/glance/glance-registry.conf
[database]
connection = mysql+pymysql://glance:qwer1234@controller/glance
[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = qwer1234
[paste_deploy]
flavor = keystone
4.填充图像服务数据库：
[root@controller /]# su -s /bin/sh -c "glance-manage db_sync" glance
/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:1336: OsloDBDeprecationWarning: EngineFacade is deprecated; please use oslo_db.sqlalchemy.enginefacade
expire_on_commit=expire_on_commit, _conf=conf)
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.runtime.migration] Running upgrade -> liberty, liberty initial
INFO [alembic.runtime.migration] Running upgrade liberty -> mitaka01, add index on created_at and updated_at columns of 'images' table
INFO [alembic.runtime.migration] Running upgrade mitaka01 -> mitaka02, update metadef os_nova_server
INFO [alembic.runtime.migration] Running upgrade mitaka02 -> ocata_expand01, add visibility to images
INFO [alembic.runtime.migration] Running upgrade ocata_expand01 -> pike_expand01, empty expand for symmetry with pike_contract01
INFO [alembic.runtime.migration] Running upgrade pike_expand01 -> queens_expand01
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
Upgraded database to: queens_expand01, current revision(s): queens_expand01
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
Database migration is up to date. No migration needed.
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.runtime.migration] Running upgrade mitaka02 -> ocata_contract01, remove is_public from images
INFO [alembic.runtime.migration] Running upgrade ocata_contract01 -> pike_contract01, drop glare artifacts tables
INFO [alembic.runtime.migration] Running upgrade pike_contract01 -> queens_contract01
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
Upgraded database to: queens_contract01, current revision(s): queens_contract01
INFO [alembic.runtime.migration] Context impl MySQLImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
Database is synced successfully.
三、完成安装
启动glance服务并开机自启
[root@controller /]# systemctl enable openstack-glance-api.service \
> openstack-glance-registry.service
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-glance-api.service to /usr/lib/systemd/system/openstack-glance-api.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-glance-registry.service to /usr/lib/systemd/system/openstack-glance-registry.service.
[root@controller /]# systemctl start openstack-glance-api.service \
> openstack-glance-registry.service
[root@controller /]# echo $?
0