[TOC] ## 功能簡述 鏡像服務 (glance) 允許用戶查詢、上傳和下載虛擬機鏡像。 **組件介紹** glance-api 接收鏡像API的調用，諸如鏡像發現、恢復、存儲。 glance-registry 存儲、處理和恢復鏡像的元數據，元數據包括項諸如大小和類型。 **openstack服務通用步驟** 1. 數據庫創庫授權 2. 在keystone創建系統用戶關聯角色 3. 在keystone上創建服務，注冊api 4. 安裝相應服務軟件包 5. 修改相應服務的配置文件 6. 同步數據庫 7. 啟動服務 ## 服務部署 [官方部署文檔參考](https://docs.openstack.org/mitaka/zh_CN/install-guide-rdo/glance.html) ### 1：數據庫創庫授權 ```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創建glance用戶關聯角色 ```sh openstack user create --domain default --password GLANCE_PASS glance openstack role add --project service --user glance admin ``` ### 3：在keystone上創建服務和注冊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：安裝服務相應軟件包 ```sh yum install openstack-glance -y ``` ### 5：修改相應服務的配置文件 **備份并修改glance-api配置** ```sh # 備份配置 cp /etc/glance/glance-api.conf{,.bak} grep '^[a-Z\[]' /etc/glance/glance-api.conf.bak >/etc/glance/glance-api.conf # 非交互式設置 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 ``` **備份并修改glance-registry配置** ```sh # 備份配置 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：同步數據庫 ```sh su -s /bin/sh -c "glance-manage db_sync" glance mysql glance -e "show tables;" ``` ### 7：啟動服務 ```sh systemctl enable openstack-glance-api.service openstack-glance-registry.service systemctl start openstack-glance-api.service openstack-glance-registry.service ``` ### 8: 驗證 上傳并使用CirrOS鏡像對鏡像服務進行驗證，[鏡像官方地址](https://launchpad.net/cirros) CirrOS是一個小型的Linux鏡像,可以快速的進行 OpenStack部署測試 ```sh #下載鏡像 wget http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img #上傳鏡像 openstack image create "cirros" \ --file cirros-0.3.4-x86_64-disk.img \ --disk-format qcow2 --container-format bare \ --public #查看鏡像列表 openstack image list ```