[TOC] ## 功能简述 镜像服务 (glance) 允许用户查询、上传和下载虚拟机镜像。 **组件介绍** glance-api 接收镜像API的调用，诸如镜像发现、恢复、存储。 glance-registry 存储、处理和恢复镜像的元数据，元数据包括项诸如大小和类型。 **openstack服务通用步骤** 1. 数据库创库授权 2. 在keystone创建系统用户关联角色 3. 在keystone上创建服务，注册api 4. 安装相应服务软件包 5. 修改相应服务的配置文件 6. 同步数据库 7. 启动服务 ## 服务部署 [官方部署文档参考](https://docs.openstack.org/mitaka/zh_CN/install-guide-rdo/glance.html) ### 1：数据库创库授权 ```sh CREATE DATABASE glance; GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' \ IDENTIFIED BY 'GLANCE_DBPASS'; GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' \ IDENTIFIED BY 'GLANCE_DBPASS'; ``` ### 2：在keystone创建glance用户关联角色 ```sh openstack user create --domain default --password GLANCE_PASS glance openstack role add --project service --user glance admin ``` ### 3：在keystone上创建服务和注册api ```sh openstack service create --name glance --description "OpenStack Image" image openstack endpoint create --region RegionOne image public http://controller:9292 openstack endpoint create --region RegionOne image internal http://controller:9292 openstack endpoint create --region RegionOne image admin http://controller:9292 ``` ### 4：安装服务相应软件包 ```sh yum install openstack-glance -y ``` ### 5：修改相应服务的配置文件 **备份并修改glance-api配置** ```sh # 备份配置 cp /etc/glance/glance-api.conf{,.bak} grep '^[a-Z\[]' /etc/glance/glance-api.conf.bak >/etc/glance/glance-api.conf # 非交互式设置 openstack-config --set /etc/glance/glance-api.conf database connection mysql+pymysql://glance:GLANCE_DBPASS@controller/glance openstack-config --set /etc/glance/glance-api.conf glance_store stores file,http openstack-config --set /etc/glance/glance-api.conf glance_store default_store file openstack-config --set /etc/glance/glance-api.conf glance_store filesystem_store_datadir /var/lib/glance/images/ 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_url http://controller:35357 openstack-config --set /etc/glance/glance-api.conf keystone_authtoken memcached_servers controller:11211 openstack-config --set /etc/glance/glance-api.conf keystone_authtoken auth_type password openstack-config --set /etc/glance/glance-api.conf keystone_authtoken project_domain_name default openstack-config --set /etc/glance/glance-api.conf keystone_authtoken user_domain_name default openstack-config --set /etc/glance/glance-api.conf keystone_authtoken project_name service openstack-config --set /etc/glance/glance-api.conf keystone_authtoken username glance openstack-config --set /etc/glance/glance-api.conf keystone_authtoken password GLANCE_PASS openstack-config --set /etc/glance/glance-api.conf paste_deploy flavor keystone ``` **备份并修改glance-registry配置** ```sh # 备份配置 cp /etc/glance/glance-registry.conf{,.bak} grep '^[a-Z\[]' /etc/glance/glance-registry.conf.bak > /etc/glance/glance-registry.conf # 非交互式修改配置 openstack-config --set /etc/glance/glance-registry.conf database connection mysql+pymysql://glance:GLANCE_DBPASS@controller/glance 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_url http://controller:35357 openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken memcached_servers controller:11211 openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken auth_type password openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken project_domain_name default openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken user_domain_name default openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken project_name service openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken username glance openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken password GLANCE_PASS openstack-config --set /etc/glance/glance-registry.conf paste_deploy flavor keystone ``` ### 6：同步数据库 ```sh su -s /bin/sh -c "glance-manage db_sync" glance mysql glance -e "show tables;" ``` ### 7：启动服务 ```sh systemctl enable openstack-glance-api.service openstack-glance-registry.service systemctl start openstack-glance-api.service openstack-glance-registry.service ``` ### 8: 验证 上传并使用CirrOS镜像对镜像服务进行验证，[镜像官方地址](https://launchpad.net/cirros) CirrOS是一个小型的Linux镜像,可以快速的进行 OpenStack部署测试 ```sh #下载镜像 wget http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img #上传镜像 openstack image create "cirros" \ --file cirros-0.3.4-x86_64-disk.img \ --disk-format qcow2 --container-format bare \ --public #查看镜像列表 openstack image list ```