OpenStack 镜像服务Glance [三]
OpenStack 镜像服务Glance [三]openstack
时间：2016年11月28日
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上穿件glance用户我们已经创建完成
安装软件包
[*]# yum install openstack-glance -y
修改数据库地址
[*]# vim /etc/glance/glance-api.conf
[*]
[*]…
[*]connection = mysql+pymysql://glance:glance@192.168.56.11/glance
[*]…
[*]
[*]
[*]# vim /etc/glance/glance-registry.conf
[*]
[*]…
[*]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
[*]# 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
[*]# 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
在进行设置
[*]# vim /etc/glance/glance-api.conf
[*]…
[*]
[*]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：必须复制在模块下，否则不生效
还需要设置模块
[*]
[*]flavor = keystone
[*]
[*]#去掉注释并修改为keystone
设置registry，和api的设置一样
[*]# vim /etc/glance/glance-registry.conf
[*]…
[*]
[*]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
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
[*]# vim /etc/glance/glance-api.conf
[*]…
[*]
[*]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：
[*]# grep '^' /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
[*]# grep '^' /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
[*]# systemctl enable openstack-glance-api.service
[*]# systemctl enable openstack-glance-registry.service
[*]# systemctl start openstack-glance-api.service
[*]# 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
[*]# source admin-openstack.sh
[*]# 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
[*]# 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 |
[*]+--------------+----------------------------------+
[*]
[*]# 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 |
[*]+--------------+----------------------------------+
[*]
[*]# 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 |
[*]+--------------+----------------------------------+
测试
我们可以使用openstack list或者glance list进行查看
[*]# openstack image list
[*]
[*]# glance image-list
[*]+----+------+
[*]| ID | Name |
[*]+----+------+
[*]+----+------+
提示：如果此处没有出现空，那么这时候就需要看日志了。
最后我们可以上传一个镜像进行测试
[*]# wget http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img
我们下载上面的镜像进行测试
[*]# openstack image create "cirros" \
[*]> --file cirros-0.3.4-x86_64-disk.img \
[*]> --disk-format qcow2 --container-format bare \
[*]> --public
[*]+------------------+------------------------------------------------------+
[*]| Field | Value |
[*]+------------------+------------------------------------------------------+
[*]| checksum | ee1eca47dc88f4879d8a229cc70a07c6 |
[*]| container_format | bare |
[*]| created_at | 2016-11-17T10:34:14Z |
[*]| disk_format | qcow2 |
[*]| file | /v2/images/fc67361d-ad30-40b2-9d96-941e50fc17f5/file |
[*]| id | fc67361d-ad30-40b2-9d96-941e50fc17f5 |
[*]| min_disk | 0 |
[*]| min_ram | 0 |
[*]| name | cirros |
[*]| owner | 026a58f98402437fa95ef4a21fbd4d1a |
[*]| protected | False |
[*]| schema | /v2/schemas/image |
[*]| size | 13287936 |
[*]| status | active |
[*]| tags | |
[*]| updated_at | 2016-11-17T10:34:14Z |
[*]| virtual_size | None |
[*]| visibility | public |
[*]+------------------+------------------------------------------------------+
#提示：如果没有环境变量还需要source一下
检查是否上传成功
[*]# openstack image list
[*]+--------------------------------------+--------+--------+
[*]| ID | Name | Status |
[*]+--------------------------------------+--------+--------+
[*]| fc67361d-ad30-40b2-9d96-941e50fc17f5 | cirros | active |
[*]+--------------------------------------+--------+--------+
[*]# glance image-list
[*]+--------------------------------------+--------+
[*]| ID | Name |
[*]+--------------------------------------+--------+
[*]| fc67361d-ad30-40b2-9d96-941e50fc17f5 | cirros |
[*]+--------------------------------------+--------+
[*]# ls /var/lib/glance/images/
[*]fc67361d-ad30-40b2-9d96-941e50fc17f5
[*]
[*]镜像存放在/var/lib/glance/images下
官方中文文档：http://docs.openstack.org/mitaka/zh_CN/install-guide-rdo/keystone-install.html
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