安装OpenStack Glance 组件 java

安装OpenStack Glance 组件

本篇主要记录一下如何安装 OpenStack 的 Glance 镜像管理组件

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和上一篇一样选择的是 queens 版本
操作系统：Centos7
1.官网地址

有一些前置条件如 mariadb 、 NTP 同步、MQ 等需要提前安装好详细在上一篇Keystone中

https://docs.openstack.org/gl...

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2.配置 glance 前置条件 2.1 创建 glance 数据库

mysql -u root -p

MariaDB [(none)]> CREATE DATABASE glance; MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' \ IDENTIFIED BY 'root123'; #密码可以自定义 MariaDB [(none)]> GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' \ IDENTIFIED BY 'root123';

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2.2 创建一个 glance 用户

openstack user create --domain default --password-prompt glance 输入密码：#自定义密码我的是root123 重复输入密码：

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2.3 把glance用户赋予 admin 角色

openstack role add --project service --user glance admin #This command provides no output. 就是这一行输入完后没有任何输出

2.4 创建 glance service

openstack service create --name glance \ --description "OpenStack Glance Image" image

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2.5 创建 glance 的 endpoint

上一篇有提到 endpoint 分为3种类型， public、internal、admin ，所以glance 的endpoint 也是要去创建这3种类型

2.5.1 创建 public endpoint

openstack endpoint create --region RegionOne \ image public http://controller:9292

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2.5.2 创建 internal endpoint

openstack endpoint create --region RegionOne \ image internal http://controller:9292

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2.5.3 创建 admin endpoint

openstack endpoint create --region RegionOne \ image admin http://controller:9292

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3.安装 glance 组件 3.1 安装glance packages

yum install openstack-glance #我安装的时候很慢最后科学上网才安装成功

【安装OpenStack Glance 组件】

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3.2 编辑/etc/glance/glance-api.conf 3.2.1 配置数据库连接

[database] # ... connection = mysql+pymysql://glance:GLANCE_DBPASS@controller/glance #注意替换grance密码

3.2.2 配置 keystone_authtoken 和 paste_deploy

[keystone_authtoken] # ... auth_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_PASS[paste_deploy] # ... flavor = keystone

3.2.3 配置 glance_store 镜像存储地址

[glance_store] # ... stores = file,http default_store = file filesystem_store_datadir = /var/lib/glance/images/

3.3 编辑 /etc/glance/glance-registry.conf

和上面的两步一样

3.3.1 配置数据库连接

[database] # ... connection = mysql+pymysql://glance:GLANCE_DBPASS@controller/glance #注意替换grance密码

3.3.2 配置 keystone_authtoken 和 paste_deploy

[keystone_authtoken] # ... auth_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_PASS[paste_deploy] # ... flavor = keystone

3.4 执行 db_sync 脚本

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

执行完成后可以去数据库里查看到对应的glance 的表

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3.5 设置开机自启和启动

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

4.测试 glance 上传镜像

至此 glance 已经安装完毕，那我们来测试一下它的上传镜像基础功能

4.1 下载官方cirros 镜像专门openstack 用于测试用的小型镜像下载地址 https://download.cirros-cloud...
4.2 上传镜像

glance image-create --name "cirros-0.5.2-x86_64-disk.img"--file /root/cirros-0.5.2-x86_64-disk.img --container-format bare --disk-format qcow2--progress

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4.3 查看镜像

openstack image list

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4.4 通过 Api查询镜像 http://192.168.56.30:9292/v2/...
注意需要带上 X-Auth-Token 去是keystone 拿

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5.扩展 5.1 Disk和Container格式当我们添加一个镜像到glance时，你必须指定虚拟机的disk格式和container格式，关于disk格式请自行研究kvm等虚拟。
disk和container格式是每个部署的基本配置，常用的格式如下：
1.Disk Format
不同的虚拟化应用的厂针有不同的虚拟机镜像的disk格式：

raw
This is an unstructured disk image format
vhd
This is the VHD disk format, a common disk format used by virtual machine monitors from VMware, Xen, Microsoft, VirtualBox, and others
vhdx
This is the VHDX disk format, an enhanced version of the vhd format which supports larger disk sizes among other features.
vmdk
Another common disk format supported by many common virtual machine monitors
vdi
A disk format supported by VirtualBox virtual machine monitor and the QEMU emulator
iso
An archive format for the data contents of an optical disc (e.g. CDROM).
ploop
A disk format supported and used by Virtuozzo to run OS Containers
qcow2
A disk format supported by the QEMU emulator that can expand dynamically and supports Copy on Write
aki
This indicates what is stored in Glance is an Amazon kernel image
ari
This indicates what is stored in Glance is an Amazon ramdisk image
ami
This indicates what is stored in Glance is an Amazon machine image

5.2 Container Format 容器container格式是指虚拟机映像是否包含一个文件格式，该文件格式还包含有关实际虚拟机的元数据。
需要注意的是：容器格式字符串在当前并不会被glance或其他OpenStack组件的使用，所以如果你不确定，简单的将容器格式指定bare是安全的。
你可以设置如下容器格式：

bare
This indicates there is no container or metadata envelope for the image
ovf
This is the OVF container format
aki
This indicates what is stored in Glance is an Amazon kernel image
ari
This indicates what is stored in Glance is an Amazon ramdisk image
ami
This indicates what is stored in Glance is an Amazon machine image
ova
This indicates what is stored in Glance is an OVA tar archive file
docker
This indicates what is stored in Glance is a Docker tar archive of the container filesystem