OpenStack 镜像服务Glance [三]

9oijl1111 · 发表于 2016-11-29 08:54:59

OpenStack镜像服务Glance介绍

创建虚拟机我们需要有glance的支持，因为glance是提供镜像服务
glance有两个比较重要的服务
Glance-api接受云系统镜像的构建、删除、读取请求
Glance-Registry云系统的镜像注册服务

　　我们需要配置glance-api的配置文件和glance-registry配置文件
　　glance不需要配置消息队列，但是glance需要配置keystone（认证中心）

提示：默认情况下上传镜像存放在/var/lib/glance/images下

安装glance
创建数据库和在keystone上创建glance用户我们已经创建完成

安装软件包

[iyunv@linux-node1 ~]# yum install openstack-glance -y

修改数据库地址

[iyunv@linux-node1 ~]# vim /etc/glance/glance-api.conf
[database]
…
connection = mysql+pymysql://glance:glance@192.168.56.11/glance
…
[iyunv@linux-node1 ~]# vim /etc/glance/glance-registry.conf
[database]
…
connection = mysql+pymysql://glance:glance@192.168.56.11/glance
…
#打开注释，写mysql地址，注意是在database默认下

修改完之后我们需要同步数据库

[iyunv@linux-node1 ~]# su -s /bin/sh -c "glance-manage db_sync" glance
#替我们去创建表结构，openstack有警告没有关系，只要不是error就可以

同步完数据库之后我们进行检查

[iyunv@linux-node1 ~]# mysql -h 192.168.56.11 -u glance -pglance -e "use glance;show tables;"
+----------------------------------+
| Tables_in_glance |
+----------------------------------+
| artifact_blob_locations |
| artifact_blobs |
| artifact_dependencies |
| artifact_properties |
| artifact_tags |
| artifacts |
| image_locations |
| image_members |
| image_properties |
| image_tags |
| images |
| metadef_namespace_resource_types |
| metadef_namespaces |
| metadef_objects |
| metadef_properties |
| metadef_resource_types |
| metadef_tags |
| migrate_version |
| task_info |
| tasks |
+----------------------------------+

我们要确保数据库可以进行同步

设置keystone

在[keystone_authtoken]进行设置

[iyunv@linux-node1 ~]# vim /etc/glance/glance-api.conf
…
[keystone_authtoken]
auth_uri = http://192.168.56.11:5000
auth_url = http://192.168.56.11:35357
memcached_servers = 192.168.56.11:11211
auth_type = password #验证类型为密码
project_domain_name = default #默认域
user_domain_name = default #用户默认域
project_name = service #项目名称
username = glance #用户
password = glance #密码

提示：必须复制在[keystone_authtoken]模块下，否则不生效
还需要设置[paste_deploy]模块

[paste_deploy]
flavor = keystone
#去掉注释并修改为keystone

设置registry，和api的设置一样

[iyunv@linux-node1 ~]# vim /etc/glance/glance-registry.conf
…
[keystone_authtoken]
auth_uri = http://192.168.56.11:5000
auth_url = http://192.168.56.11:35357
memcached_servers = 192.168.56.11:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = glance
…
[paste_deploy]
flavor = keystone

配置镜像路径
在glance-api配置本地文件系统存储和镜像文件位置

[iyunv@linux-node1 ~]# vim /etc/glance/glance-api.conf
…
[glance_store]
stores = file,http
default_store = file
filesystem_store_datadir = /var/lib/glance/images
#以上配置都是打开注释就可以

检查
glance-api配置文件配置小结：

[iyunv@linux-node1 ~]# grep '^[a-z]' /etc/glance/glance-api.conf
connection = mysql+pymysql://glance:glance@192.168.56.11/glance
stores = file,http
default_store = file
filesystem_store_datadir = /var/lib/glance/images
auth_uri = http://192.168.56.11:5000
auth_url = http://192.168.56.11:35357
memcached_servers = 192.168.56.11:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = glance
flavor = keystone

registry配置如下

[iyunv@linux-node1 ~]# grep '^[a-z]' /etc/glance/glance-registry.conf
connection = mysql+pymysql://glance:glance@192.168.56.11/glance
auth_uri = http://192.168.56.11:5000
auth_url = http://192.168.56.11:35357
memcached_servers = 192.168.56.11:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = glance
flavor = keystone
提示：registry和api的配置跟我一样现在我们就可以启动了

设置开启启动并开启服务

[iyunv@linux-node1 ~]# systemctl enable openstack-glance-api.service
[iyunv@linux-node1 ~]# systemctl enable openstack-glance-registry.service
[iyunv@linux-node1 ~]# systemctl start openstack-glance-api.service
[iyunv@linux-node1 ~]# systemctl start openstack-glance-registry.service

提示：9292是glance-api的端口，9191是glance-registry的端口

在keystone上设置服务注册
1.创建服务

[iyunv@linux-node1 ~]# source admin-openstack.sh
[iyunv@linux-node1 ~]# openstack service create --name glance --description "OpenStack Image" image
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Image |
| enabled | True |
| id | c9fd28645efe45faa2a9cf2f2cce623e |
| name | glance |
| type | image |
+-------------+----------------------------------+

2.创建镜像服务的API端点

[iyunv@linux-node1 ~]# openstack endpoint create --region RegionOne
> image public http://192.168.56.11:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | cabb8016fef74b438a341866ef10917f |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c9fd28645efe45faa2a9cf2f2cce623e |
| service_name | glance |
| service_type | image |
| url | http://192.168.56.11:9292 |
+--------------+----------------------------------+
[iyunv@linux-node1 ~]# openstack endpoint create --region RegionOne image internal http://192.168.56.11:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 0bafb4e5d90745d789a16c97fc3f5688 |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c9fd28645efe45faa2a9cf2f2cce623e |
| service_name | glance |
| service_type | image |
| url | http://192.168.56.11:9292 |
+--------------+----------------------------------+
[iyunv@linux-node1 ~]# openstack endpoint create --region RegionOne image admin http://192.168.56.11:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 911d06d783094d62bf2cf97e4dd3fed6 |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | c9fd28645efe45faa2a9cf2f2cce623e |
| service_name | glance |
| service_type | image |
| url | http://192.168.56.11:9292 |
+--------------+----------------------------------+