openstack部署安装(Icehouse版本)-控制节点(Controller)-镜像服务(glance)
Glance是OpenStack镜像服务组件,该组件提供虚拟机镜像的发现，注册，取得服务。通过Glance，虚拟机镜像可以被存储到多种存储上，比如简单的文件存储或者对象存储。Glance 组件完成镜像模板、快照的存储工作。Glance 主要包括了glance-api 和glaneregistry两个服务。3.1 Install the Image Service(安装镜像服务)
3.1.1 在控制节点上安装glance服务
# yum install openstack-glance python-glanceclient
3.1.2 登陆mysql，为glance创建数据库
$ mysql -u root -p
mysql> CREATE DATABASE glance;
mysql> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' \
IDENTIFIED BY 'glance';
mysql> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' \
IDENTIFIED BY 'glance';
3.1.3 修改glance的配置文件，修改数据库的连接
# openstack-config --set /etc/glance/glance-api.conf database \
connection mysql://glance:glance@controller/glance
# openstack-config --set /etc/glance/glance-registry.conf database \
connection mysql://glance:glance@controller/glance
3.1.4 为镜像服务创建数据库表
# su -s /bin/sh -c "glance-manage db_sync" glance
3.1.5 创建一个glance用户，并且将这个用户添加到admin角色中
# keystone user-create --name=glance --pass=glance \
--email=glance@example.com
# keystone user-role-add --user=glance --tenant=service --role=admin
3.1.6 配置镜像服务，从而可以正常的使用身份认证服务
# openstack-config --set /etc/glance/glance-api.conf keystone_authtoken \
auth_uri http://controller:5000
# openstack-config --set /etc/glance/glance-api.conf keystone_authtoken \
auth_host controller
# openstack-config --set /etc/glance/glance-api.conf keystone_authtoken \
auth_port 35357
# openstack-config --set /etc/glance/glance-api.conf keystone_authtoken \
auth_protocol http
# openstack-config --set /etc/glance/glance-api.conf keystone_authtoken \
admin_tenant_name service
# openstack-config --set /etc/glance/glance-api.conf keystone_authtoken \
admin_user glance
# openstack-config --set /etc/glance/glance-api.conf keystone_authtoken \
admin_password glance
# openstack-config --set /etc/glance/glance-api.conf paste_deploy \
flavor keystone
# openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken \
auth_uri http://controller:5000
# openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken \
auth_host controller
# openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken \
auth_port 35357
# openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken \
auth_protocol http
# openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken \
admin_tenant_name service
# openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken \
admin_user glance
# openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken \
admin_password glance
# openstack-config --set /etc/glance/glance-registry.conf paste_deploy \
flavor keystone
3.1.7 注册服务并且创建端点(endpoint)
# keystone service-create --name=glance --type=image \
--description="OpenStack Image Service"
# keystone endpoint-create \
--service-id=$(keystone service-list | awk '/ image / {print $2}') \
--publicurl=http://controller:9292 \
--internalurl=http://controller:9292 \
--adminurl=http://controller:9292
3.1.8 启动glance服务，并且加入到开机自动启动。
# service openstack-glance-api start
# service openstack-glance-registry start
# chkconfig openstack-glance-api on
# chkconfig openstack-glance-registry on
3.2 Verify the Image Service installation(验证镜像服务的安装)
3.2.1 创建一个目录，并且下载
# mkdir /tmp/images
# cd /tmp/images/
# wget http://download.cirros-cloud.net/0.3.2/cirros-0.3.2-x86_64-disk.img
3.2.2 上传并且制作镜像,创建成功之后会显示出镜像的信息
# source admin.sh
# glance image-create --name "cirros-0.3.2-x86_64" --disk-format qcow2 \
--container-format bare --is-public True --progress < cirros-0.3.2-x86_64-disk.img
+------------------+--------------------------------------+
| Property | Value |
+------------------+--------------------------------------+
| checksum | 87h7c1cd2b6f60c92c9966skjkks7326 |
| container_format | bare |
| created_at | 2015-08-12T15:00:18 |
| deleted | False |
| deleted_at | None |
| disk_format | qcow2 |
| id | asjkd7d3-78kl-3783-7873-b878784e1fj3 |
| is_public | True |
| min_disk | 0 |
| min_ram | 0 |
| name | cirros-0.3.2-x86_64 |
| owner | efa984b0a914450e9a47788ad330699d |
| protected | False |
| size | 13167616 |
| status | active |
| updated_at | 2015-08-12T15:00:18 |
+------------------+--------------------------------------+
3.2.3 查看镜像
$ glance image-list
+--------------------------------------+---------------------+-------------+------------------+----------+--------+
| ID | Name | Disk Format | Container Format | Size | Status |
+--------------------------------------+---------------------+-------------+------------------+----------+--------+
| asjkd7d3-78kl-3783-7873-b878784e1fj3 | cirros-0.3.2-x86_64 | qcow2 | bare | 13167616 | active |
+--------------------------------------+---------------------+-------------+------------------+----------+--------+
3.2.4 到此为止，镜像服务已经安装完成，并且成功完成了镜像的注册。
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