技术学堂
这是搭建Openstack云平台的第四堂课，主要讲解镜像服务glance的配置过程。Glance负责管理Openstack中所有镜像，这是创建虚拟机的基本服务，因此也需要优先完成配置。
创建数据库用户
|
1 |
mysql -uroot -pMariadb123 |
|
1 2 3 4 5 |
create database glance; grant all privileges on glance.* to 'glance'@'localhost' identified by 'Glance123'; grant all privileges on glance.* to 'glance'@'%' identified by 'Glance123'; flush privileges; exit |
配置glance服务凭证
创建glance服务凭证
|
1 2 3 4 5 |
# source /opt/scripts/admin # 开始创建用户 openstack user create \ --domain default \ --password-prompt glance |
输入密码(Glance123)后继续：
|
1 2 3 4 5 6 |
openstack role add \ --project service \ --user glance admin openstack service create \ --name glance \ --description "OpenStack Image" image |
创建endpoint
|
1 2 3 4 5 6 |
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 |
配置控制节点上的镜像服务
安装glance
|
1 |
yum -y install openstack-glance |
配置 glance api
修改配置/etc/glance/glance-api.conf：
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 |
[DEFAULT] bind_host = 10.10.100.150 enable_v1_api = False [database] connection = mysql+pymysql://glance:Glance123@controller/glance [glance_store] stores = file,http default_store = file filesystem_store_datadir = /var/lib/glance/images/ #以下是使用ceph存储的配置，使用ceph时删除cinder参数 #stores = glance.store.rbd.Store #default_store = rbd #rbd_store_pool = images #rbd_store_user = glance #ceph_conf = /etc/ceph/ceph.conf [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:35357 memcached_servers = controller:11211 auth_type = password project_domain_name = Default user_domain_name = Default project_name = service username = glance password = Glance123 [paste_deploy] flavor = keystone |
注意：如果要迁移镜像目录，例如/data/glance/images，需要对该目录授权：
|
1 |
chown -R glance:nobody /data/glance/images |
配置 glance registry
修改配置/etc/glance/glance-registry.conf：
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
[DEFAULT] bind_host = 10.10.100.150 [database] connection = mysql+pymysql://glance:Glance123@controller/glance [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:35357 memcached_servers = controller:11211 auth_type = password project_domain_name = Default user_domain_name = Default project_name = service username = glance password = Glance123 [paste_deploy] flavor = keystone |
初始化数据
|
1 |
su -s /bin/sh -c "glance-manage db_sync" glance |
启动应用
|
1 2 |
systemctl enable openstack-glance-api openstack-glance-registry systemctl start openstack-glance-api openstack-glance-registry |
验证结果
现在可以登录web界面上传镜像，或先下载一个镜像至glance目录，然后执行以下命令：
|
1 2 3 4 |
openstack image create "CentOS7.5" \ --file CentOS-7-x86_64-DVD-1804.iso \ --disk-format qcow2 --container-format bare \ --public |
常用镜像操作命令：
|
1 2 3 4 |
openstack image list glance image-list openstack image delete <image_id> glance image-delete <image_name> |
原创文章禁止转载：技术学堂 » Openstack云平台搭建课程四·镜像服务Glance
