部署镜像服务
一：安装和配置服务
1.建库建用户
mysql -u root -p
CREATE DATABASE glance;
GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' IDENTIFIED BY '密码';
GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' IDENTIFIED BY '密码';
flush privileges;
2.keystone认证操作：
上面提到过：所有后续项目的部署都统一放到一个租户service里，然后需要为每个项目建立用户，建管理员角色，建立关联
admin-openrc
openstack user create --domain default --password-prompt glance
openstack role add --project service --user glance admin
建立服务实体
openstack service create --name glance \
--description "OpenStack Image" image
建端点
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
3.安装软件
yum install openstack-glance -y
4.修改配置：
编辑：/etc/glance/glance-api.conf
#vim /etc/glance/glance-api.conf
[database]
#这里的数据库连接配置是用来初始化生成数据库表结构,不配置无法生成数据库表结构
#glance-api不配置database对创建vm无影响，对使用metada有影响
#日志报错:ERROR glance.api.v2.metadef_namespaces
connection = mysql+pymysql://glance:liuyao@controller/glance
[keystone_authtoken]
auth_url = http://controller:5000
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = liuyao
[paste_deploy]
flavor = keystone
[glance_store]
stores = file,http
default_store = file
filesystem_store_datadir = /var/lib/glance/images/
编辑：/etc/glance/glance-registry.conf
[database]
#这里的数据库配置是用来glance-registry检索镜像元数据
connection = mysql+pymysql://glance:liuyao@controller/glance
新建目录：
mkdir /var/lib/glance/images/
chown glance. /var/lib/glance/images/
同步数据库：（此处会报一些关于future的问题，自行忽略）
su -s /bin/sh -c "glance-manage db_sync" glance
启动服务：
systemctl enable openstack-glance-api.service \
openstack-glance-registry.service
systemctl start openstack-glance-api.service \
openstack-glance-registry.service
二：验证操作：
source admin-openrc
wget http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img
openstack image create "cirros" \
--file cirros-0.3.4-x86_64-disk.img \
--disk-format qcow2 --container-format bare \
--public
openstack image list