一、Glance介绍：
1.1 glance主要是由三部分组成：
glance-api：接收云系统镜像的创建，删除，读取请求，类似nova-api，通过其他模块（glance-registry及p_w_picpath store）来完成诸如镜像的查找、获取、上传、删除等操作，api监听端口9292。
glance-registry：云系统的镜像注册服务，用于与mysql数据库交互，存储或获取镜像的元数据（metadata）；提供镜像元数据相关的REST接口，通过glance-registry，可以向数据库中写入或获取镜像各种数据，glance-registry监听端口9191，glance数据库中有两张表，一张是p_w_picpath表，另一张是p_w_picpath property表。p_w_picpath表保存了镜像格式、大小等信息；p_w_picpath property表则主要保存镜像的定制化信息。
p_w_picpathstore：是一个存储的接口层，通过这个接口，glance可以获取镜像，p_w_picpath store支持的存储有Amazon的S3、Openstack本身的Swift还有注入ceph，sheepdog，GFS等分布式存储。p_w_picpath store是镜像保存与获取的接口，它仅仅是一个接口层，具体的实现需要外部的存储支持
二、Glance配置
2.1 项目以及端点配置
2.1.1 创建glance镜像服务
[root@linux-node1 ~]# openstack service create --name glance --description "OpenStack Image" p_w_picpath +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | OpenStack Image | | enabled | True | | id | be8d1f87ce294817acb351f03f5ef4e3 | | name | glance | | type | p_w_picpath | +-------------+----------------------------------+
2.1.2 创建镜像服务API端点，一般需要创建三个（public，internal，admin）
[root@linux-node1 ~]# openstack endpoint create --region RegionOne p_w_picpath public http://192.168.56.11:9292 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | f060541cb88741b79bbd4f3e3e44aa0d | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | be8d1f87ce294817acb351f03f5ef4e3 | | service_name | glance | | service_type | p_w_picpath | | url | http://192.168.56.11:9292 | +--------------+----------------------------------+ [root@linux-node1 ~]# openstack endpoint create --region RegionOne p_w_picpath internal http://192.168.56.11:9292 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | dcd57aa6f23e4cc085540a47d399c6cb | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | be8d1f87ce294817acb351f03f5ef4e3 | | service_name | glance | | service_type | p_w_picpath | | url | http://192.168.56.11:9292 | +--------------+----------------------------------+ [root@linux-node1 ~]# openstack endpoint create --region RegionOne p_w_picpath admin http://192.168.56.11:9292 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | cfb42dc406cc4a7ba19105c6886b2aa6 | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | be8d1f87ce294817acb351f03f5ef4e3 | | service_name | glance | | service_type | p_w_picpath | | url | http://192.168.56.11:9292 | +--------------+----------------------------------+
2.1.3 服务列表的查看
2.2 连接数据配置
[root@linux-node1 ~]# vim /etc/glance/glance-api.conf #glance-api配置-> 1748 connection =mysql+pymysql://glance:[email protected]/glance [root@linux-node1 ~]# vim/etc/glance/glance-registry.conf #registry配置 1038 connection = mysql+pymysql://glance:[email protected]/glance
2.2.1 初始化同步到数据库
警告可以忽略 [root@linux-node1 ~]# su -s /bin/sh -c "glance-manage db_sync" glance Option "verbose" from group "DEFAULT" is deprecated for removal. Its value may be silently ignored in the future. /usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:1171: OsloDBDeprecationWarning: EngineFacade is deprecated; please use oslo_db.sqlalchemy.enginefacade expire_on_commit=expire_on_commit, _conf=conf) /usr/lib/python2.7/site-packages/pymysql/cursors.py:166: Warning: (1831, u"Duplicate index 'ix_p_w_picpath_properties_p_w_picpath_id_name' defined on the table 'glance.p_w_picpath_properties'. This is deprecated and will be disallowed in a future release.") result = self._query(query)
2.2.2 数据库检查验证
[root@linux-node1 ~]# mysql -uglance -pglance -h192.168.56.11 -e "use glance;show tables" +----------------------------------+ | Tables_in_glance | +----------------------------------+ | artifact_blob_locations | | artifact_blobs | | artifact_dependencies | | artifact_properties | | artifact_tags | | artifacts | | p_w_picpath_locations | | p_w_picpath_members | | p_w_picpath_properties | | p_w_picpath_tags | | p_w_picpaths | | metadef_namespace_resource_types | | metadef_namespaces | | metadef_objects | | metadef_properties | | metadef_resource_types | | metadef_tags | | migrate_version | | task_info | | tasks | +-----------
2.3 连接keystone配置
[root@linux-node1 ~]# vim /etc/glance/glance-api.conf 3178 [keystone_authtoken] 下面添加 #连接keystone配置 3179 auth_uri = http://192.168.56.11:5000 #url地址 3180 auth_url = http://192.168.56.11:35357 3181 memcached_servers = 192.168.56.11:11211 #memcached地址 3182 auth_type = password 3183 project_domain_name = default 3184 user_domain_name = default 3185 project_name = service 3186 username = glance 3187 password = glance 打开3990 flavor = keystone的注释 #配置认证服务访问 打开1864 stores = file,http的注释 # 配置本地文件系统和镜像存储位置 打开1896 default_store = file的注释 #默认存储文件类型 打开2196 filesystem_store_datadir = /var/lib/glance/p_w_picpaths的注释 #默认镜像存储位置
编辑glance-registry配置文件
vim /etc/glance/glance-registry.conf 1127 [keystone_authtoken] 下面添加 1128 auth_uri = http://192.168.56.11:5000 1129 auth_url = http://192.168.56.11:35357 1130 memcached_servers = 192.168.56.11:11211 1131 auth_type = password 1132 project_domain_name = default 1133 user_domain_name = default 1134 project_name = service 1135 username = glance 1136 password = glance 打开 1910 flavor = keystone 注释
2.4 启动服务
[root@linux-node1 ~]# systemctl enableopenstack-glance-api.service \ openstack-glance-registry.service [root@linux-node1 ~]# systemctl startopenstack-glance-api.service \ openstack-glance-registry.service 2.4.1 端口查看
2.5 上传镜像
注: 把镜像放到任意目录下，执行以下命令，进入那个目录，否则要加绝对路径
[root@linux-node1 ~]# openstack p_w_picpath 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 | 2016-12-27T17:55:14Z | | disk_format | qcow2 | | file | /v2/p_w_picpaths/63d8947e-5224-40b6-92e5-8c939e75d45e/file | | id | 63d8947e-5224-40b6-92e5-8c939e75d45e | | min_disk | 0 | | min_ram | 0 | | name | cirros | | owner | 7ae0fb7deb5342d885a07c2c890a1ff4 | | protected | False | | schema | /v2/schemas/p_w_picpath | | size | 13287936 | | status | active | | tags | | | updated_at | 2016-12-27T17:55:15Z | | virtual_size | None | | visibility | public | +------------------+------------------------------------------------------+
检查上传结果
[root@linux-node1 ~]# openstack p_w_picpath list #老版本的使用命令glance p_w_picpath-list +--------------------------------------+--------+--------+ | ID | Name | Status | +--------------------------------------+--------+--------+ | 63d8947e-5224-40b6-92e5-8c939e75d45e | cirros | active | +--------------------------------------+--------+--------+