openstack镜像服务（glance）

1.Use the database access client to connect to the database server as the root user:

$ mysql -u root -p

2.Create the glance database:

CREATE DATABASE glance;

3.Grant proper access to the glance database:

GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' IDENTIFIED BY '123456';

GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' IDENTIFIED BY '123456';

4.Exit the database access client.

5.切换到管理员身份

source admin-openrc.sh 我保存的位置：/etc/keystone

6.创建glance用户

$ keystone user-create --name glance --pass 123456

7.为glance用户添加admin角色:

$ keystone user-role-add --user glance --tenant service --role admin

8.创建 glance 服务实体:

keystone service-create --name glance --type image --description "OpenStack Image Service"

9.创建Image Service API 端点:

keystone endpoint-create --service-id $(keystone service-list | awk '/ image / {print $2}') --publicurl http://controller:9292 --internalurl http://controller:9292 --adminurl http://controller:9292 --region regionOne

10. 安装包

# apt-get install glance python-glanceclient

11.编辑/etc/glance/glance-api.conf 加入下面的内容

[database]#connection = mysql://glance:GLANCE_DBPASS@controller/glance(不行)

connection = mysql://glance:GLANCE_DBPASS@10.0.0.11/glance...[keystone_authtoken]#Note：Comment out any auth_host, auth_port, and auth_protocol options because the identity_uri
option replaces them.auth_uri = http://controller:5000/v2.0identity_uri = http://controller:35357admin_tenant_name = serviceadmin_user = glanceadmin_password = GLANCE_PASS...[paste_deploy]flavor = keystone...[glance_store]...default_store = filefilesystem_store_datadir
= /var/lib/glance/images/[DEFAULT]...notification_driver = noop[DEFAULT]...verbose = True

在本文中GLANCEDBPASS和GLANCEPASS都为123456

12.编辑 /etc/glance/glance-registry.conf 加入下面的内容:

[database]...#connection = mysql://glance:GLANCE_DBPASS@controller/glance（不行）

connection = mysql://glance:GLANCE_DBPASS@10.0.0.11/glance[keystone_authtoken]...auth_uri = http://controller:5000/v2.0identity_uri = http://controller:35357admin_tenant_name
= serviceadmin_user = glanceadmin_password = GLANCE_PASS[paste_deploy]...flavor = keystone[DEFAULT]...notification_driver = noopverbose = True

13.Restart the Image Service services:

# service glance-registry restart

# service glance-api restart

14.Create and change into a temporary local directory:

$ mkdir /tmp/images

15.Download the image to the temporary local directory:（注：手册上的镜像地址有变化）

wget -p /tmp/images http://download.cirros-cloud.net/0.3.3/cirros-0.3.3-x86_64-disk.img

16.Source the admin credentials to gain access to admin-only CLI commands:

$ source admin-openrc.sh

17.Upload the image to the Image Service:

glance image-create --name "cirros-0.3.3-x86_64" --file /tmp/images/cirros-0.3.3-x86_64-disk.img --disk-format qcow2 --container-format bare --is-public True --progress

注：

(如果在安装镜像服务（Image Service）时，在Verify the Image Service installation这一步，上传镜像到镜像服务时（Upload the image to the Image Service）提示如标题所示的错误:Request returned
failure status. HTTPInternalServerError (HTTP 500).

解决方法：（参见16.Source the admin credentials to gain access to admin-only CLI commands:

$ source admin-openrc.sh）后重启glance-registry和glance-api两个服务，即在命令行输入 service
glance-registry restart和service glance-api restart  运行，问题迎刃而解！原因是重启Linux（ubuntu），导致以上两个服务被关闭。其实这只是一个低级错误，有很多人也遇到过这个错误。)

18.查询映像以确认数据是否正确

$ glance image-list

19.删除临时目录

$ rm -r /tmp/images

查找文件位置：locate 文件名

例：locate cirros-0.3.3-x86_64-disk.img