centos7.4+openstack queens版多节点分布式快速部署(四)安装Glance镜像服务

（1）在mariadb上为glance创建管理数据库并授权
mysql -u root -p
CREATE DATABASE glance;

进入数据库后，执行：
flush privileges
GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' IDENTIFIED BY 'GLANCE_DBPASS';
GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%'  IDENTIFIED BY 'GLANCE_DBPASS';
用合适的密码替换 GLANCE_DBPASS.

（2）获取admin用户的环境变量
source ~/admin-openrc

（3）在keystone上创建glance服务
1）创建glance用户
[root@controller1 ~]# openstack user create --domain default --password-prompt glance
User Password: 123456

2）添加用户角色，给glance用户添加admin权限
[root@controller１ ~]#openstack role add --project service --user glance admin
说明:此条命令执行成功后不返回参数

3）创建名称为glance的镜像服务
[root@controller１ ~]# openstack service create --name glance  --description "OpenStack Image" image

4）创建镜像服务三个API端点public,internal,admin
1.public API端点
[root@controller１ ~]# openstack endpoint create --region RegionOne  image public http://172.16.70.205:9292

2.internal API端点
[root@controller１ ~]# openstack endpoint create --region RegionOne  image internal http://172.16.70.205:9292

3.admin API端点
[root@controller１ ~]# openstack endpoint create --region RegionOne  image admin http://172.16.70.205:9292


（4）在glance1服务器上安装并配置glance
1）安装glance
yum install openstack-glance -y

2）编辑/etc/glance/glance-api.conf参数
[database]
connection = mysql+pymysql://glance:[email protected]/glance
[keystone_authtoken]
auth_uri = http://172.16.70.201:5000
auth_url = http://172.16.70.201:35357
memcached_servers = 172.16.70.204:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = 123456

[paste_deploy]
flavor = keystone
[glance_store]
stores = file,http
default_store = file

filesystem_store_datadir = /glance/images/  #新挂载一个大硬盘，用于存放镜像文件，这里改了文件存放位置，一定要编辑/etc/passwd 中glance用户的家目，默认是：

glance:x:161:161:OpenStack Glance Daemons:/var/lib/glance:/sbin/nologin

不更改这里，镜像上传不了。

还要更改/glance目录所有者权限：chown -hR glance:glance /glance

成功将镜像文件，上传到/dev/sdb1盘的挂载点 /glance/images/上

3）编辑/etc/glance/glance-registry.conf参数

[database]

connection = mysql+pymysql://glance:[email protected]/glance

[keystone_authtoken]

auth_uri = http://172.16.70.201:5000
auth_url = http://172.16.70.201:35357
memcached_servers = 172.16.70.204:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = glance
password = 123456

[paste_deploy]
flavor = keystone

4）同步镜像服务数据库

使用#grep '^[a-Z]' /etc/glance/glance-api.conf  查看一下配置文件的改变

5）同步镜像服务数据库
su -s /bin/sh -c "glance-manage db_sync" glance

systemctl enable openstack-glance-api.service 
systemctl enable openstack-glance-registry.service
systemctl start openstack-glance-api.service  
systemctl start openstack-glance-registry.service

（5）验证glance
1）下载CirrOS验证Image

 
wget http://download.cirros-cloud.net/0.3.5/cirros-0.3.5-x86_64-disk.img
将controller1上的环境配置脚本复制到glance1服务器上
[root@controller1 ~]# scp admin-openrc [email protected]:/root/ 
[root@glance1 ~]# source admin-openrc 

 2）上传镜像
使用QCOW2磁盘格式，裸容器格式和公开可见性将图像上传到Image服务，以便所有项目都可以访问它：
 [root@glance1 ~]# openstack image create "cirros" --file cirros-0.3.5-x86_64-disk.img  --disk-format qcow2 --container-format bare  --public

  

 3）查看镜像

 [root@glance1 ~]# openstack image list