OpenStack-Glance组件部署步骤

一、创建数据库实例和数据库用户

[root@ct ~]# mysql -u root -p 
MariaDB [(none)]> CREATE DATABASE glance;
MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' IDENTIFIED BY 'GLANCE_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' IDENTIFIED BY 'GLANCE_DBPASS';
MariaDB [(none)]> flush privileges;
MariaDB [(none)]> exit

二、创建用户、修改配置文件

● 创建OpenStack的Glance用户

#创建用户前,需要首先执行管理员环境变量脚本(此处已经在~/.bashrc 中定义过了)
[root@ct ~]# openstack user create --domain default --password GLANCE_PASS glanc		###创建glance用户
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 941884eca60e48d7bfed6a9828a96359 |
| name                | glance                           |
| options             | {
    
    }                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

[root@ct ~]# openstack role add --project service --user glance admin					
#将glance用户添加到service项目中,并且针对这个项目拥有admin权限;注册glance的API,需要对service项目有admin权限

[root@ct ~]# openstack service create --name glance --description "OpenStack Image" image		
# 创建一个service服务,service名称为glance,类型为image;创建完成后可以通过 openstack service list 查看
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Image                  |
| enabled     | True                             |
| id          | 5c4ceec40c144e1ba9acade931f83b0a |
| name        | glance                           |
| type        | image                            |
+-------------+----------------------------------+

● 创建镜像服务 API 端点,OpenStack使用三种API端点代表三种服务:admin、internal、public

[root@ct ~]# openstack endpoint create --region RegionOne image public http://ct:9292
[root@ct ~]# openstack endpoint create --region RegionOne image internal http://ct:9292
[root@ct ~]# openstack endpoint create --region RegionOne image admin http://ct:9292

● 安装 openstack-glance 软件包。

[root@ct ~]# yum -y install openstack-glance 

● 修改glance配置文件,glance有两个配置文件:

/etc/glance/glance-api.conf
/etc/glance/glance-registry.conf

[root@ct ~]# cp -a /etc/glance/glance-api.conf{
    
    ,.bak}
[root@ct ~]# grep -Ev '^$|#' /etc/glance/glance-api.conf.bak > /etc/glance/glance-api.conf

● 添加glance-api.conf配置

#传入修改的参数
openstack-config --set /etc/glance/glance-api.conf database connection mysql+pymysql://glance:GLANCE_DBPASS@ct/glance
openstack-config --set /etc/glance/glance-api.conf keystone_authtoken www_authenticate_uri http://ct:5000
openstack-config --set /etc/glance/glance-api.conf keystone_authtoken auth_url http://ct:5000
openstack-config --set /etc/glance/glance-api.conf keystone_authtoken memcached_servers ct: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
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/

[root@ct glance]# cat glance-api.conf
[DEFAULT]
[cinder]
[cors]
[database]
connection = mysql+pymysql://glance:GLANCE_DBPASS@ct/glance
[file]
[glance.store.http.store]
[glance.store.rbd.store]
[glance.store.sheepdog.store]
[glance.store.swift.store]
[glance.store.vmware_datastore.store]

[glance_store]
stores = file,http					#存储类型,file:文件,http:基于api调用的方式,把镜像放到其他存储上
default_store = file					#默认存储方式
filesystem_store_datadir = /var/lib/glance/images/	##指定镜像存放的本地目录

[image_format]
[keystone_authtoken]
www_authenticate_uri = http://ct:5000			##指定认证的keystone的URI
auth_url = http://ct:5000
memcached_servers = ct:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service				#glance用户针对service项目拥有admin权限
username = glance
password = GLANCE_PASS

[oslo_concurrency]
[oslo_messaging_amqp]
[oslo_messaging_kafka]
[oslo_messaging_notifications]
[oslo_messaging_rabbit]
[oslo_middleware]
[oslo_policy]

[paste_deploy]
flavor = keystone					#指定提供认证的服务器为keystone

[profiler]
[store_type_location_strategy]
[task]
[taskflow_executor]

● 修改glance-registry.conf 配置文件

#备份、过滤注释信息
cp -a /etc/glance/glance-registry.conf{
    
    ,.bak}
grep -Ev '^$|#' /etc/glance/glance-registry.conf.bak > /etc/glance/glance-registry.conf

#修改配置文件参数
openstack-config --set /etc/glance/glance-api.conf database connection mysql+pymysql://glance:GLANCE_DBPASS@ct/glance
openstack-config --set /etc/glance/glance-api.conf keystone_authtoken www_authenticate_uri http://ct:5000
openstack-config --set /etc/glance/glance-api.conf keystone_authtoken auth_url http://ct:5000
openstack-config --set /etc/glance/glance-api.conf keystone_authtoken memcached_servers ct: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
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/


#修改参数(配置与glance-api.conf相同)

openstack-config --set /etc/glance/glance-registry.conf database connection  mysql+pymysql://glance:GLANCE_DBPASS@t/glance
openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken www_authenticate_uri   http://ct:5000
openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken auth_url  http://ct:5000
openstack-config --set /etc/glance/glance-registry.conf keystone_authtoken memcached_servers  ct: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


[root@ct glance]# cat glance-registry.conf
[DEFAULT]
[database]
connection = mysql+pymysql://glance:GLANCE_DBPASS@ct/glance

[keystone_authtoken]
www_authenticate_uri = http://ct:5000
auth_url = http://ct:5000
memcached_servers = ct:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = glance
password = GLANCE_PASS

[oslo_messaging_amqp]
[oslo_messaging_kafka]
[oslo_messaging_notifications]
[oslo_messaging_rabbit]
[oslo_policy]

[paste_deploy]
flavor = keystone

[profiler]

● 初始化glance数据库,生成相关表结构;(不管有多少个controler,只需要初始化一次即可)

su -s /bin/sh -c "glance-manage db_sync" glance

● 开启glance服务(此处开启之后会生成存放镜像的目录/var/lib/glance/image)

[root@ct ~]# systemctl enable openstack-glance-api.service
[root@ct ~]# systemctl start openstack-glance-api.service

● 查看端口(也可以使用lsof -i:9292 )

[root@ct glance]# netstat -natp | grep 9292
tcp        0      0 0.0.0.0:9292            0.0.0.0:*         LISTEN      62334/python2

● 赋予openstack-glance-api.service服务对存储设备的可写权限(-h:值对符号连接/软链接的文件修改)

[root@ct ~]# chown -hR glance:glance /var/lib/glance/

● 镜像导入

● 先上传cirros镜像,然后导入glance,最后查看是否创建成功

[root@ct glance]# cd /opt/
#将cirros-0.3.5-x86_64-disk.img镜像文件托进/opt目录下
[root@ct opt]# ls
cirros-0.3.5-x86_64-disk.img

[root@ct opt]# openstack image create --file cirros-0.3.5-x86_64-disk.img --disk-format qcow2 --container-format bare --public cirros

● 查看镜像的两种方式

[root@ct ~]# openstack image list
+--------------------------------------+--------+--------+
| ID                                   | Name   | Status |
+--------------------------------------+--------+--------+
| 659e4d48-09c7-4d0d-b3c5-e2048b014465 | cirros | active |
+--------------------------------------+--------+--------+


[root@ct ~]# glance image-list
+--------------------------------------+--------+
| ID                                   | Name   |
+--------------------------------------+--------+
| 659e4d48-09c7-4d0d-b3c5-e2048b014465 | cirros |
+--------------------------------------+--------+

● 小结

因为OpenStack上创建虚拟机需要镜像支持,所以先行进行部署

部署思路:
1、创建数据库、授权
2、创建openstack用户、授权、管理
3、修改配置文件(glance-api.conf、glance-registry.conf)
4、初始化数据库、上传实例镜像

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转载自blog.csdn.net/Gengchenchen/article/details/114675987
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