glance在openstack负责镜像相关管理的，对外提供标准的api提供服务，glance有两个服务，一个是glance-api接受云系统镜像的创建、删除、读取请求。glance-registry是云系统的镜像注册服务。
glance有两个监听端口，一个是9292，监听api一个是9191，监听registry。
一、安装Glance
[root@linux-node1 ~]# yum install -y openstack-glance
二、Glance数据库配置
1、Glance-api
[root@linux-node1 ~]# vim /etc/glance/glance-api.conf
[database]
connection= mysql+pymysql://glance:glance@192.168.56.11/glance
2、glance-registry
[root@linux-node1 ~]# vim /etc/glance/glance-registry.conf
[database]
connection= mysql+pymysql://glance:glance@192.168.56.11/glance
三、设置Keystone
1、glance-api
[root@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:
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = glance [paste_deploy]
flavor=keystone
2、glance-registry
[root@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:
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = glance [paste_deploy]
flavor=keystone
四、设置Glance镜像存储
[root@linux-node1 ~]# vim /etc/glance/glance-api.conf
[glance_store]
stores = file,http
default_store=file
filesystem_store_datadir=/var/lib/glance/images/
五、同步数据库
su -s /bin/sh -c "glance-manage db_sync" glance
六、验证同步的情况
[root@linux-node1 ~]# mysql -h 192.168.56.11 -uglance -pglance -e "use glance;show tables;"
+----------------------------------+
| Tables_in_glance |
+----------------------------------+
| alembic_version |
| 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 |
+----------------------------------+
七、启动Glance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
八、Glance服务注册
想要让别的服务可以使用Glance，就需要在Keystone上完成服务的注册。注意需要先source一下admin的环境变量。
[root@linux-node1 ~]# source admin-openstack.sh
# openstack service create --name glance --description "OpenStack Image service" image
# openstack endpoint create --region RegionOne image public http://192.168.56.11:9292
# openstack endpoint create --region RegionOne image internal http://192.168.56.11:9292
# openstack endpoint create --region RegionOne image admin http://192.168.56.11:9292
九、测试Glance状态
[root@linux-node1 ~]# source admin-openstack.sh
[root@linux-node1 ~]# openstack image list
十一、Glance镜像
在刚开始实施OpenStack平台阶段，如果没有制作镜像。可以使用一个实验的镜像进行测试，这是一个小的Linux系统。
[root@linux-node1 ~]# cd /usr/local/src
[root@linux-node1 src]#wget http://download.cirros-cloud.net/0.3.5/cirros-0.3.5-x86_64-disk.img [root@linux-node1 src]# openstack image create "cirros" --disk-format qcow2 \
--container-format bare --file cirros-0.3.-x86_64-disk.img --public
[root@linux-node1 src]# openstack image list
+--------------------------------------+--------+--------+
| ID | Name | Status |
+--------------------------------------+--------+--------+
| cf154a84-a73a-451b-bcb3-83c98e7c0d3e | cirros | active |
+--------------------------------------+--------+--------+