OpenStack云平台搭建(3) | 部署Glance

目录

1、登录数据库授权

2、安装glance

3、测试一下

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安装部署Glance镜像服务

• Image Service  镜像服务：
• 代号：Glance：
• 为云平台虚拟机提供镜像服务，例如：上传镜像、删除镜像等。
• 说明：镜像：磁盘文件。装好了系统的磁盘文件。把镜像拷贝过来，就不需要装系统。

1、登录数据库授权

1.Use the database access client to connect to the database server as the root user（登录数据库）

[root@controller ~]# mysql -p
Enter password: 
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 31
Server version: 10.3.20-MariaDB MariaDB ServerCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.MariaDB [(none)]> 

2.Create the glance database（数据库里创建glance）

MariaDB [(none)]> CREATE DATABASE glance;

3.Grant proper access to the glance database:

MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' \
IDENTIFIED BY '123';

4.退出数据库

MariaDB [(none)]> quit

5.Create the glance user(创建glance用户密码为glance) 

[root@controller ~]# openstack user create --domain default --password glance glance
Missing value auth-url required for auth plugin password

如上我的这里会报错，时因为没有source环境变量导致。

如下修改/etc/profile文件解决：

#[root@controller ~]# vi /etc/profileexport OS_USERNAME=admin
export OS_PASSWORD=123
export OS_PROJECT_NAME=admin
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_DOMAIN_NAME=Default
export OS_AUTH_URL=http://controller:5000/v3
export OS_IDENTITY_API_VERSION=3

[root@controller ~]# source /etc/profile
[root@controller ~]# openstack user create --domain default --password glance glance
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 0293557b8f094dd3855537343b14228b |
| name                | glance                           |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

6.Add the admin role to the glance user and service project（增加admin角色）

[root@controller ~]# openstack role add --project service --user glance admin

7.Create the glance service entity（创建glance服务）

[root@controller ~]# openstack service create --name glance \
>   --description "OpenStack Image" image
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Image                  |
| enabled     | True                             |
| id          | 906253e30699402a9f3a52405119532c |
| name        | glance                           |
| type        | image                            |
+-------------+----------------------------------+

8.Create the Image service API endpoints（创建API端点）

[root@controller ~]# openstack endpoint create --region RegionOne \
>   image public http://controller:9292
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 572837d27f794675a4be0d5b32f7d442 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 906253e30699402a9f3a52405119532c |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

[root@controller ~]# openstack endpoint create --region RegionOne \
>   image internal http://controller:9292
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | f23f9f9af4854d49aa87076c51630e28 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 906253e30699402a9f3a52405119532c |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

[root@controller ~]# openstack endpoint create --region RegionOne \
>   image admin http://controller:9292
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 8ab8803387634f20acaf2c5443381f54 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 906253e30699402a9f3a52405119532c |
| service_name | glance                           |
| service_type | image                            |
| url          | http://controller:9292           |
+--------------+----------------------------------+

2、安装glance

1.安装glance包

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

2.备份配置文件并且修改（修改了4个地方）

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

[DEFAULT]
[cinder]
[cors]
[database]
connection = mysql+pymysql://glance:123@controller/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
default_store = file
filesystem_store_datadir = /var/lib/glance/images/
[image_format]
[keystone_authtoken]
www_authenticate_uri  = http://controller:5000
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 = glance
[oslo_concurrency]
[oslo_messaging_amqp]
[oslo_messaging_kafka]
[oslo_messaging_notifications]
[oslo_messaging_rabbit]
[oslo_middleware]
[oslo_policy]
[paste_deploy]
flavor = keystone
[profiler]
[store_type_location_strategy]
[task]
[taskflow_executor]

3.同步数据库

[root@controller ~]# su -s /bin/sh -c "glance-manage db_sync" glance

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

4.（这一步可以不做）现在glance没有日志，我们需要配置下

#[root@controller ~]# vi /etc/glance/glance-api.conf[DEFAULT]
log_file = /var/log/glance/glance-api.log
[root@controller ~]# systemctl restart openstack-glance-api.service
[root@controller ~]# tail -f /var/log/glance/glance-api.log 
).  Its value may be silently ignored in the future.
2023-02-09 10:18:22.350 43599 INFO glance.common.wsgi [-] Starting 4 workers
2023-02-09 10:18:22.352 43599 INFO glance.common.wsgi [-] Started child 43611
2023-02-09 10:18:22.354 43611 INFO eventlet.wsgi.server [-] (43611) wsgi starting up on http://0.0.0.0:9292
2023-02-09 10:18:22.355 43599 INFO glance.common.wsgi [-] Started child 43612
2023-02-09 10:18:22.357 43612 INFO eventlet.wsgi.server [-] (43612) wsgi starting up on http://0.0.0.0:9292
2023-02-09 10:18:22.358 43599 INFO glance.common.wsgi [-] Started child 43613
2023-02-09 10:18:22.360 43613 INFO eventlet.wsgi.server [-] (43613) wsgi starting up on http://0.0.0.0:9292
2023-02-09 10:18:22.361 43599 INFO glance.common.wsgi [-] Started child 43614
2023-02-09 10:18:22.363 43614 INFO eventlet.wsgi.server [-] (43614) wsgi starting up on http://0.0.0.0:9292

3、测试一下

下载cirros-0.4.0-x86_64-disk.img这个镜像上传到/opt下面（镜像文件在我的资源csdn下载地方找到）

切换到/opt目录下

[root@controller opt]# ls
cirros-0.4.0-x86_64-disk.img
[root@controller opt]# glance image-create --name "cirros" \
>   --file cirros-0.4.0-x86_64-disk.img \
>   --disk-format qcow2 --container-format bare \
>   --visibility=public
+------------------+----------------------------------------------------------------------------------+
| Property         | Value                                                                            |
+------------------+----------------------------------------------------------------------------------+
| checksum         | 443b7623e27ecf03dc9e01ee93f67afe                                                 |
| container_format | bare                                                                             |
| created_at       | 2023-02-09T15:25:52Z                                                             |
| disk_format      | qcow2                                                                            |
| id               | 79e21395-0d41-4c98-86f2-bfa813a48a2f                                             |
| min_disk         | 0                                                                                |
| min_ram          | 0                                                                                |
| name             | cirros                                                                           |
| os_hash_algo     | sha512                                                                           |
| os_hash_value    | 6513f21e44aa3da349f248188a44bc304a3653a04122d8fb4535423c8e1d14cd6a153f735bb0982e |
|                  | 2161b5b5186106570c17a9e58b64dd39390617cd5a350f78                                 |
| os_hidden        | False                                                                            |
| owner            | 4c7bdbb75b9e481db886549f7d2711be                                                 |
| protected        | False                                                                            |
| size             | 12716032                                                                         |
| status           | active                                                                           |
| tags             | []                                                                               |
| updated_at       | 2023-02-09T15:25:53Z                                                             |
| virtual_size     | Not available                                                                    |
| visibility       | public                                                                           |
+------------------+----------------------------------------------------------------------------------+
[root@controller opt]# glance image-list
+--------------------------------------+--------+
| ID                                   | Name   |
+--------------------------------------+--------+
| 79e21395-0d41-4c98-86f2-bfa813a48a2f | cirros |
+--------------------------------------+--------+

以上说明部署glance成功

【glance镜像服务】

• 它在open stack中的项目名称为Glance.在早期的open stack版本中，Glance只有管理镜像的功能，并不具备镜像存储功能。现在，Glance已经发展称为集上传，检索，管理和存储等多种功能的open stack核心服务。

【glance由两部分组成】

（1）glance-api： 接受云系统镜像的创建，删除，读取请求

（2）glance-Registry： 云系统的镜像注册服务

• glance-api 是接受 rest api请求的。完成诸如镜像的查找，获取，上传，删除等操作，默认是监听9292端口
• glance-registry 是用于Mysql的数据交互，用户存储或获取镜像的元数据（metadata）；提供镜像元数据相关的REST接口，通过glance-Registry，可以向数据库中写入或获取镜像的各种数据。glance-Registry监听的端口是9191.Glance数据库中有两种表，一张是image表，主要存储了镜像格式，大小等信息；另一张是image property表，主要存了镜像定制化信息。
• image-store是一个存储的接口层，通过这个接口，glance可以获取镜像，image store支持的存储有Amazon的S3,Openstack本身的swift，还有诸如ceph，sheepdog，GluasterFS等分布式存储，image store是镜像保存与获取的接口，它仅仅是一个接口层，具体的实现需要外部的存储支持。

【镜像服务的主要功能】

• 1.查询和获取镜像的元数据和镜像本身
• 2.注册和上传虚拟机镜像，包括镜像的创建、上传、下载和管理
• 3.维护镜像信息，包括元数据和镜像本身
• 4.支持多种方式存储镜像，包括普通的文件系统、swift、Amazon、S3等
• 5.对虚拟机实例执行创建快照命令来创建新的镜像，或者备份虚拟机的状态

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• OpenStack简介 | 常见的基础组件

• OpenStack云平台搭建(1) | 基础环境准备

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