创建虚拟机我们需要有glance的支持，因为glance是提供镜像的服务。

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

 

一）在keystone上服务注册 

1.1 创建glance服务实体

root@controller ~]# source admin-openrc[root@controller ~]# openstack service create --name glance --description "OpenStack Image" image+-------------+----------------------------------+| Field | Value |+-------------+----------------------------------+| description | OpenStack Image || enabled | True || id | 1ebbfc83e7f6485eb761be2d7924493b || name | glance || type | image |+-------------+----------------------------------+

1.2  创建Compute服务api端点（公有、私有、admin）

[root@controller ~]# openstack endpoint create --region RegionOne \>   image public http://controller:9292+--------------+----------------------------------+| Field        | Value                            |+--------------+----------------------------------+| enabled      | True                             || id           | 869d2403d3f64d4e9b38014b8d3bf8df || interface    | public                           || region       | RegionOne                        || region_id    | RegionOne                        || service_id   | 1ebbfc83e7f6485eb761be2d7924493b || 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           | 0f4ac6d92e5f4e18bfbce90b0b2ab604 || interface    | internal                         || region       | RegionOne                        || region_id    | RegionOne                        || service_id   | 1ebbfc83e7f6485eb761be2d7924493b || service_name | glance                           || service_type | image                            || url          | http://controller:9292           |+--------------+----------------------------------+[root@controller ~]#  openstack endpoint create --region RegionOne \>   image admin http://controller:9292+--------------+----------------------------------+| Field        | Value                            |+--------------+----------------------------------+| enabled      | True                             || id           | 77075f68191b4cd8aa8fb1c030417458 || interface    | admin                            || region       | RegionOne                        || region_id    | RegionOne                        || service_id   | 1ebbfc83e7f6485eb761be2d7924493b || service_name | glance                           || service_type | image                            || url          | http://controller:9292           |+--------------+----------------------------------+

　　

二).安装配置glance

2.1安装glance软件包

# yum install openstack-glance -y

2.2  配置glance-api配置文件

vim /etc/glance/glance-api.conf[database]connection = mysql+pymysql://glance:redhat@controller/glance           数据库配置[keystone_authtoken]auth_uri = http://controller:5000auth_url = http://controller:35357memcached_servers = controller:11211auth_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 = redhat                      # 密码[glance_store]stores = file,httpdefault_store = filefilesystem_store_datadir = /var/lib/glance/images/

3.3 配置glance-registry配置文件

# vim /etc/glance/glance-registry.conf  [database]connection = mysql+pymysql://glance:redhat@controller/glance[keystone_authtoken]auth_uri = http://controller:5000auth_url = http://controller:35357memcached_servers = controller:11211auth_type = passwordproject_domain_name = Defaultuser_domain_name = Defaultproject_name = serviceusername = glancepassword = redhat[paste_deploy]flavor = keystone

　　

3.4 同步数据库

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

验证是否成功

# mysql -u glance -predhat -e "use glance;show tables;"

3.5、启动服务并设置开机自启动

systemctl enable openstack-glance-api.service systemctl enable openstack-glance-registry.service systemctl start openstack-glance-api.servicesystemctl start openstack-glance-registry.service

3.6 、下载测试镜像源

wget http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img

使用 QCOW2 磁盘格式， bare 容器格式上传镜像到镜像服务并设置公共可见，这样所有的项目都可以访问它

# source admin-openrc[root@controller ~]# openstack image create "cirros" \> --file /root/cirros-0.3.4-x86_64-disk.img \> --disk-format qcow2 --container-format bare \> --public+------------------+------------------------------------------------------+| Field | Value |+------------------+------------------------------------------------------+| checksum | ee1eca47dc88f4879d8a229cc70a07c6 || container_format | bare || created_at | 2018-04-13T07:50:12Z || disk_format | qcow2 || file | /v2/images/c952e002-680e-45e1-9337-08d2c3a9abe6/file || id | c952e002-680e-45e1-9337-08d2c3a9abe6 || min_disk | 0 || min_ram | 0 || name | cirros || owner | 24a37179b1844e8897e77a0c44cc8d25 || protected | False || schema | /v2/schemas/image || size | 13287936 || status | active || tags | || updated_at | 2018-04-13T07:50:12Z || virtual_size | None || visibility | public |+------------------+------------------------------------------------------+

检查是否上传成功

openstack image list[root@controller ~]# glance image-list+--------------------------------------+--------+| ID | Name |+--------------------------------------+--------+| c952e002-680e-45e1-9337-08d2c3a9abe6 | cirros |+--------------------------------------+--------+[root@controller ~]# ls /var/lib/glance/images/c952e002-680e-45e1-9337-08d2c3a9abe6

备注：镜像存放在/var/lib/glance/images下