OpenStack------Glance组件部署
OpenStack-Glance组件部署
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）
#创建glance用户
[root@ct ~]# openstack user create --domain default --password GLANCE_PASS glance
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | 28b997cf1ec043c48fa697b89153a27e |
| name | glance |
| options | {
} |
| password_expires_at | None |
+---------------------+----------------------------------+
#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 role add --project service --user glance admin
#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
[root@ct ~]# openstack service create --name glance --description "OpenStack Image" image
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Image |
| enabled | True |
| id | e0cbad9ab1664dfc9d5aede17695a170 |
| name | glance |
| type | image |
+-------------+----------------------------------+
[root@ct ~]# openstack service list
+----------------------------------+----------+----------+
| ID | Name | Type |
+----------------------------------+----------+----------+
| 26657045727941249ffc4348483b0507 | keystone | identity |
| e0cbad9ab1664dfc9d5aede17695a170 | glance | 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
```bash
[root@ct ~]# openstack endpoint create --region RegionOne image public http://ct:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 9d4d4fcfbb9f428ab9719a7def35a682 |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | e0cbad9ab1664dfc9d5aede17695a170 |
| service_name | glance |
| service_type | image |
| url | http://ct:9292 |
+--------------+----------------------------------+
[root@ct ~]# openstack endpoint create --region RegionOne image internal http://ct:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | e37b086bc24f454ba990c26aa42dc4a0 |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | e0cbad9ab1664dfc9d5aede17695a170 |
| service_name | glance |
| service_type | image |
| url | http://ct:9292 |
+--------------+----------------------------------+
[root@ct ~]# openstack endpoint create --region RegionOne image admin http://ct:9292
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 09d571013e974e9792d052a6892fb503 |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | e0cbad9ab1664dfc9d5aede17695a170 |
| service_name | glance |
| service_type | image |
| url | 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：
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/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
glance-api.conf
#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
glance-registry.conf
#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@ct/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 26694/python2
[root@ct glance]# lsof -i:9292
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
glance-ap 26694 glance 4u IPv4 79033 0t0 TCP *:armtechdaemon (LISTEN)
glance-ap 26706 glance 4u IPv4 79033 0t0 TCP *:armtechdaemon (LISTEN)
glance-ap 26707 glance 4u IPv4 79033 0t0 TCP *:armtechdaemon (LISTEN)
glance-ap 26708 glance 4u IPv4 79033 0t0 TCP *:armtechdaemon (LISTEN)
glance-ap 26709 glance 4u IPv4 79033 0t0 TCP *:armtechdaemon (LISTEN)
● 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镜像到控制节点的/root，然后导入glance，最后查看是否创建成功
[root@ct ~]# openstack image create --file cirros-0.3.5-x86_64-disk.img --disk-format qcow2 --container-format bare --public cirros
+------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| checksum | f8ab98ff5e73ebab884d80c9dc9c7290 |
| container_format | bare |
| created_at | 2021-03-15T08:53:41Z |
| disk_format | qcow2 |
| file | /v2/images/ccfd5775-44a1-4748-95b0-55f4464faf7e/file |
| id | ccfd5775-44a1-4748-95b0-55f4464faf7e |
| min_disk | 0 |
| min_ram | 0 |
| name | cirros |
| owner | 8d4eaa8194384a8eb17d8934769db7cc |
| properties | os_hash_algo='sha512', os_hash_value='f0fd1b50420dce4ca382ccfbb528eef3a38bbeff00b54e95e3876b9bafe7ed2d6f919ca35d9046d437c6d2d8698b1174a335fbd66035bb3edc525d2cdb187232', os_hidden='False' |
| protected | False |
| schema | /v2/schemas/image |
| size | 13267968 |
| status | active |
| tags | |
| updated_at | 2021-03-15T08:53:42Z |
| virtual_size | None |
| visibility | public |
+------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
● 查看镜像的两种方式
[root@ct ~]# openstack image list
+--------------------------------------+--------+--------+
| ID | Name | Status |
+--------------------------------------+--------+--------+
| ccfd5775-44a1-4748-95b0-55f4464faf7e | cirros | active |
+--------------------------------------+--------+--------+
[root@ct ~]# glance image-list
+--------------------------------------+--------+
| ID | Name |
+--------------------------------------+--------+
| ccfd5775-44a1-4748-95b0-55f4464faf7e | 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