云计算OpenStack核心组件---nova计算服务(7)
一、nova介绍
Nova 是 OpenStack 最核心的服务,负责维护和管理云环境的计算资源。OpenStack 作为 IaaS 的云操作系统,虚拟机生命周期管理也就是通过 Nova 来实现的。
用途与功能:
1) 实例生命周期管理
2) 管理计算资源
3) 网络和认证管理
4) REST 风格的 API
5) 异步的一致性通信
6)Hypervisor 透明:支持Xen,XenServer/XCP,KVM, UML, VMware vSphere and Hyper-V
在上图中可以看到,Nova 处于 Openstak 架构的中心,其他组件都为 Nova 提供支持: Glance 为 VM 提供 image;Cinder 和 Swift 分别为 VM 提供块存储和对象存储;Neutron 为 VM 提供网络连接。
nova架构如下图:
Nova 的架构比较复杂,包含很多组件。 这些组件以子服务(后台 deamon 进程)的形式运行,可以分为以下几类:
1、API
nova-api是整个Nova 组件的门户,接收和响应客户的 API 调用。所有对 Nova 的请求都首先由 nova-api 处理。nova-api 向外界暴露若干 HTTP REST API 接口 在 keystone 中我们可以查询 nova-api 的 endponits。
客户端可以将请求发送到 endponits 指定的地址,向 nova-api 请求操作。 当然,作为最终用户的我们不会直接发送 Rest AP I请求。 OpenStack CLI,Dashboard 和其他需要跟 Nova 交换的组件会使用这些 API。
Nova-api 对接收到的 HTTP API 请求会做如下处理:
(1)检查客户端传入的参数是否合法有效
(2)调用 Nova 其他子服务的处理客户端 HTTP 请求
(3)格式化 Nova 其他子服务返回的结果并返回给客户端
nova-api 接收哪些请求?
简单的说,只要是跟虚拟机生命周期相关的操作,nova-api 都可以响应。 大部分操作都可以在 Dashboard 上找到。打开Instance管理界面
除了提供 OpenStack 自己的API,nova-api 还支持 Amazon EC2 API。 也就是说,如果客户以前使用 Amazon EC2,并且用 EC2 的 API 开发了些工具来管理虚机,那么如果现在要换成 OpenStack,这些工具可以无缝迁移到 OpenStack,因为 nova-api 兼容 EC2 API,无需做任何修改。
2、Compute Core
(1)nova-scheduler:
虚机调度服务,负责决定在哪个计算节点上运行虚机。创建 Instance 时,用户会提出资源需求,例如 CPU、内存、磁盘各需要多少。OpenStack 将这些需求定义在 flavor 中,用户只需要指定用哪个 flavor 就可以了。
可用的 flavor 在 System->Flavors 中管理。
下面介绍 nova-scheduler 是如何实现调度的。在 /etc/nova/nova.conf 中,nova 通过 driver=filter_scheduler 这个参数来配置 nova-scheduler。
driver = filter_scheduler
Filter scheduler
Filter scheduler 是 nova-scheduler 默认的调度器,调度过程分为两步:
1) 通过过滤器(filter)选择满足条件的计算节点(运行 nova-compute)
2) 通过权重计算(weighting)选择在最优(权重值最大)的计算节点上创建 Instance。
Nova 允许使用第三方 scheduler,配置 scheduler_driver 即可。 这又一次体现了OpenStack的开放性。Scheduler 可以使用多个 filter 依次进行过滤,过滤之后的节点再通过计算权重选出最适合的节点。
上图是调度过程的一个示例:
1) 最开始有 6 个计算节点 Host1-Host6
2) 通过多个 filter 层层过滤,Host2 和 Host4 没有通过,被刷掉了
3) Host1,Host3,Host5,Host6 计算权重,结果 Host5 得分最高,最终入选
当 Filter scheduler 需要执行调度操作时,会让 filter 对计算节点进行判断,filter 返回 True 或 False。经过前面一堆 filter 的过滤,nova-scheduler 选出了能够部署 instance 的计算节点。
如果有多个计算节点通过了过滤,那么最终选择哪个节点呢?
Scheduler 会对每个计算节点打分,得分最高的获胜。 打分的过程就是 weight,翻译过来就是计算权重值,那么 scheduler 是根据什么来计算权重值呢?
目前 nova-scheduler 的默认实现是根据计算节点空闲的内存量计算权重值: 空闲内存越多,权重越大,instance 将被部署到当前空闲内存最多的计算节点上。
(2)nova-compute:
nova-compute 是管理虚机的核心服务,在计算节点上运行。通过调用Hypervisor API实现节点上的 instance的生命周期管理。 OpenStack 对 instance 的操作,最后都是交给 nova-compute 来完成的。 nova-compute 与 Hypervisor 一起实现 OpenStack 对 instance 生命周期的管理。
Openstack中虚机默认的保存路径在:/var/lib/nova/instances
通过Driver架构支持多种Hypervisor
Hypervisor是计算节点上跑的虚拟化管理程序,虚机管理最底层的程序。 不同虚拟化技术提供自己的 Hypervisor。 常用的 Hypervisor 有 KVM,Xen, VMWare 等。nova-compute 为这些 Hypervisor 定义了统一的接口,Hypervisor 只需要实现这些接口,就可以 Driver 的形式即插即用到 OpenStack 系统中。 下面是Nova Driver的架构示意图:
(3)nova-conductor:
nova-compute 经常需要更新数据库,比如更新和获取虚机的状态。 出于安全性和伸缩性的考虑,nova-compute 并不会直接访问数据库,而是将这个任务委托给 nova-conductor。
这样做有两个显著好处:
1)更高的系统安全性
2)更好的系统伸缩性
3、Console Interface
openstack-nova-api:nova门户
openstack-nova-conductor:帮助nova-compute访问数据库的
openstack-nova-console:提供多种方式访问虚机的控制台
openstack-nova-novncproxy:是基于web浏览器提供虚机的控制台
openstack-nova-scheduler:负责调度虚机启动到哪一个计算节点
openstack-nova-placement-api:资源使用情况追踪
openstack-nova-spicehtml5proxy: 基于 HTML5 浏览器的 SPICE 访问
openstack-nova-xvpnvncproxy: 基于 Java 客户端的 VNC 访问
openstack-nova-consoleauth: 负责对访问虚机控制台请求提供 Token 认证
openstack-nova-cert: 提供 x509 证书支持
4、Database
Nova 会有一些数据需要存放到数据库中,一般使用 MySQL。数据库安装在控制节点上。 Nova 使用命名为 “nova” 的数据库。
5、Message Queue
在前面我们了解到 Nova 包含众多的子服务,这些子服务之间需要相互协调和通信。为解耦各个子服务,Nova 通过 Message Queue 作为子服务的信息中转站。 所以在架构图上我们看到了子服务之间没有直接的连线,是通过 Message Queue 联系的。
OpenStack 默认是用 RabbitMQ 作为 Message Queue。 MQ 是 OpenStack 的核心基础组件,我们后面也会详细介绍。
二、Nova 组件如何协同工作
Nova 物理部署方案
下面我们可以看看实验环境的具体部署情况。 通过在计算节点和控制节点上运行
ps -elf | grep nova 来查看运行的 nova 子服务
计算节点compute只运行了nova-compute子服务
控制节点controller运行了若干nova-*子服务
RabbitMQ 和 MySQL 也是放在控制节点上的。可能细心的同学已经发现我们的控制节点上也运行了 nova-compute。 这实际上也就意味着 devstack-controller 既是一个控制节点,同时也是一个计算节点,也可以在上面运行虚机。
这也向我们展示了 OpenStack 这种分布式架构部署上的灵活性: 可以将所有服务都放在一台物理机上,作为一个 All-in-One 的测试环境; 也可以将服务部署在多台物理机上,获得更好的性能和高可用。
另外,也可以用 nova service-list 查看 nova-* 子服务都分布在哪些节点上
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客户(可以是 OpenStack 最终用户,也可以是其他程序)向 API(nova-api)发送请求:“帮我创建一个虚机”
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API 对请求做一些必要处理后,向 Messaging(RabbitMQ)发送了一条消息:“让 Scheduler 创建一个虚机”
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Scheduler(nova-scheduler)从 Messaging 获取到 API 发给它的消息,然后执行调度算法,从若干计算节点中选出节点 A
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Scheduler 向 Messaging 发送了一条消息:“在计算节点 A 上创建这个虚机”
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计算节点 A 的 Compute(nova-compute)从 Messaging 中获取到 Scheduler 发给它的消息,然后在本节点的 Hypervisor 上启动虚机。
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在虚机创建的过程中,Compute 如果需要查询或更新数据库信息,会通过 Messaging 向 Conductor(nova-conductor)发送消息,Conductor 负责数据库访问。
以上是创建虚机最核心的步骤, 这几个步骤向我们展示了 nova-* 子服务之间的协作的方式,也体现了 OpenStack 整个系统的分布式设计思想,掌握这种思想对我们深入理解 OpenStack 会非常有帮助。
三、nova创建虚拟机详细过程
1、界面或命令行通过RESTful API向keystone获取认证信息。
2、keystone通过用户请求认证信息,并生成auth-token返回给对应的认证请求。
3、界面或命令行通过RESTful API向nova-api发送一个boot instance的请求(携带auth-token)。
4、nova-api接受请求后向keystone发送认证请求,查看token是否为有效用户和token。
5、keystone验证token是否有效,如有效则返回有效的认证和对应的角色(注:有些操作需要有角色权限才能操作)。
6、通过认证后nova-api和数据库通讯。
7、初始化新建虚拟机的数据库记录。
8、nova-api通过rpc.call向nova-scheduler请求是否有创建虚拟机的资源(Host ID)。
9、nova-scheduler进程侦听消息队列,获取nova-api的请求。
10、nova-scheduler通过查询nova数据库中计算资源的情况,并通过调度算法计算符合虚拟机创建需要的主机。
11、对于有符合虚拟机创建的主机,nova-scheduler更新数据库中虚拟机对应的物理主机信息。
12、nova-scheduler通过rpc.cast向nova-compute发送对应的创建虚拟机请求的消息。
13、nova-compute会从对应的消息队列中获取创建虚拟机请求的消息。
14、nova-compute通过rpc.call向nova-conductor请求获取虚拟机消息。(Flavor)
15、nova-conductor从消息队队列中拿到nova-compute请求消息。
16、nova-conductor根据消息查询虚拟机对应的信息。
17、nova-conductor从数据库中获得虚拟机对应信息。
18、nova-conductor把虚拟机信息通过消息的方式发送到消息队列中。
19、nova-compute从对应的消息队列中获取虚拟机信息消息。
20、nova-compute通过keystone的RESTfull API拿到认证的token,并通过HTTP请求glance-api获取创建虚拟机所需要镜像。
21、glance-api向keystone认证token是否有效,并返回验证结果。
22、token验证通过,nova-compute获得虚拟机镜像信息(URL)。
23、nova-compute通过keystone的RESTfull API拿到认证k的token,并通过HTTP请求neutron-server获取创建虚拟机所需要的网络信息。
24、neutron-server向keystone认证token是否有效,并返回验证结果。
25、token验证通过,nova-compute获得虚拟机网络信息。
26、nova-compute通过keystone的RESTfull API拿到认证的token,并通过HTTP请求cinder-api获取创建虚拟机所需要的持久化存储信息。
27、cinder-api向keystone认证token是否有效,并返回验证结果。
28、token验证通过,nova-compute获得虚拟机持久化存储信息。
29、nova-compute根据instance的信息调用配置的虚拟化驱动来创建虚拟机。
四、彻底删除nova-compute节点
1、控制节点上操作查看计算节点,删除node1
openstack host list
nova service-list
2、将node1上的计算服务设置为down,然后disabled
systemctl stop openstack-nova-compute
nova service-list
nova service-disable node1 nova-compute
nova service-list
3、在数据库里清理(nova库)
(1)查看现在数据库状态
[root@node1 ~]# mysql -u root -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 90 Server version: 10.1.20-MariaDB MariaDB Server Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]> use nova; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed MariaDB [nova]> select host from nova.services; +---------+ | host | +---------+ | 0.0.0.0 | | 0.0.0.0 | | node1 | | node1 | | node1 | | node1 | | node2 | +---------+ 7 rows in set (0.00 sec) MariaDB [nova]> select hypervisor_hostname from compute_nodes; +---------------------+ | hypervisor_hostname | +---------------------+ | node1 | | node2 | +---------------------+ 2 rows in set (0.00 sec)
(2)删除数据库中的node1节点信息
MariaDB [nova]> delete from nova.services where host="node1"; Query OK, 4 rows affected (0.01 sec) MariaDB [nova]> delete from compute_nodes where hypervisor_hostname="node1"; Query OK, 1 row affected (0.00 sec) MariaDB [nova]> MariaDB [nova]> MariaDB [nova]> MariaDB [nova]> select host from nova.services; +---------+ | host | +---------+ | 0.0.0.0 | | 0.0.0.0 | | node2 | +---------+ 3 rows in set (0.00 sec) MariaDB [nova]> select hypervisor_hostname from compute_nodes; +---------------------+ | hypervisor_hostname | +---------------------+ | node2 | +---------------------+ 1 row in set (0.00 sec)
五、安装和配置nova计算服务
(一)安装和配置控制节点(ren3)
1、在数据库中创建nova计算服务的数据库,用户及授予权限
(1)使用root用户登录数据库:
[root@ren3 ~]# mysql -u root -proot
(2)创建nova_api、nova和nova_cell0数据库:
MariaDB [(none)]> CREATE DATABASE nova_api; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> CREATE DATABASE nova; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> CREATE DATABASE nova_cell0; Query OK, 1 row affected (0.00 sec) MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | glance | | information_schema | | keystone | | mysql | | nova | | nova_api | | nova_cell0 | | performance_schema | +--------------------+ 8 rows in set (0.01 sec)
(3)授予适当的数据库使用权限:
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.05 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> select user,password,host from mysql.user;+----------+-------------------------------------------+-----------+ | user | password | host | +----------+-------------------------------------------+-----------+ | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B | localhost | | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B | 127.0.0.1 | | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B | ::1 | | glance | *C0CE56F2C0C7234791F36D89700B02691C1CAB8E | localhost | | keystone | *442DFE587A8B6BE1E9538855E8187C1EFB863A73 | localhost | | keystone | *442DFE587A8B6BE1E9538855E8187C1EFB863A73 | % | | glance | *C0CE56F2C0C7234791F36D89700B02691C1CAB8E | % | | nova | *B79B482785488AB91D97EAFCAD7BA8839EF65AD3 | localhost | | nova | *B79B482785488AB91D97EAFCAD7BA8839EF65AD3 | % | +----------+-------------------------------------------+-----------+ 9 rows in set (0.00 sec)
退出数据库
2、加载系统变量
[root@ren3 ~]# cat openrc
export OS_USERNAME=admin
export OS_PASSWORD=admin
export OS_PROJECT_NAME=admin
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_DOMAIN_NAME=Default
export OS_AUTH_URL=http://ren3:35357/v3
export OS_IDENTITY_API_VERSION=3
[root@ren3 ~]# source openrc
3、创建计算服务凭证
(1)创建nova用户
[root@ren3 ~]# openstack user create --domain default --password=nova nova +---------------------+----------------------------------+ | Field | Value | +---------------------+----------------------------------+ | domain_id | default | | enabled | True | | id | fb741e18c1f242cebc6a512c679a07a7 | | name | nova | | options | {} | | password_expires_at | None | +---------------------+----------------------------------+
(2)向nova用户添加管理角色:
[root@ren3 ~]# openstack role add --project service --user nova admin
(3)创建nova服务:
[root@ren3 ~]# openstack service create --name nova --description "OpenStack Compute" compute +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | OpenStack Compute | | enabled | True | | id | 207e39b4617e4ac2ad6ec90e055342e3 | | name | nova | | type | compute | +-------------+----------------------------------+ [root@ren3 ~]# openstack service list +----------------------------------+----------+----------+ | ID | Name | Type | +----------------------------------+----------+----------+ | 207e39b4617e4ac2ad6ec90e055342e3 | nova | compute | | a7cf08799d4b4b509530ae6c21453b08 | glance | image | | ab70227ae28c4fb7a774ed4808489e76 | keystone | identity | +----------------------------------+----------+----------+
4、创建计算API服务端点:
[root@ren3 ~]# openstack endpoint create --region RegionOne \ compute public http://ren3:8774/v2.1 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | a10ffd61f7a0467682325e930b384222 | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | 207e39b4617e4ac2ad6ec90e055342e3 | | service_name | nova | | service_type | compute | | url | http://ren3:8774/v2.1 | +--------------+----------------------------------+ [root@ren3 ~]# openstack endpoint create --region RegionOne \ compute internal http://ren3:8774/v2.1 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 79cf3dc0d9784eaf83fec84a74dd468d | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | 207e39b4617e4ac2ad6ec90e055342e3 | | service_name | nova | | service_type | compute | | url | http://ren3:8774/v2.1 | +--------------+----------------------------------+ [root@ren3 ~]# openstack endpoint create --region RegionOne \ compute admin http://ren3:8774/v2.1 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | d413124d690d44b8853f6c5b1dce9af1 | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | 207e39b4617e4ac2ad6ec90e055342e3 | | service_name | nova | | service_type | compute | | url | http://ren3:8774/v2.1 | +--------------+----------------------------------+
5、创建placement用户
[root@ren3 ~]# openstack user create --domain default --password=placement placement +---------------------+----------------------------------+ | Field | Value | +---------------------+----------------------------------+ | domain_id | default | | enabled | True | | id | 53e13c535c8648f58abcae149a44d816 | | name | placement | | options | {} | | password_expires_at | None | +---------------------+----------------------------------+
6、添加placement用户到service项目,并给它admin角色
[root@ren3 ~]# openstack role add --project service --user placement admin
7、创建placement服务
[root@ren3 ~]# openstack service create --name placement --description "Placement API" placement +-------------+----------------------------------+ | Field | Value | +-------------+----------------------------------+ | description | Placement API | | enabled | True | | id | d421cabebb114dab9b5f1cd63900b910 | | name | placement | | type | placement | +-------------+----------------------------------+ [root@ren3 ~]# openstack service list |grep placement | d421cabebb114dab9b5f1cd63900b910 | placement | placement |
8、创建placement api端点:
[root@ren3 ~]# openstack endpoint create --region RegionOne placement public http://ren3:8778 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | bbf36665cd90488e9269a12bea3b839c | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | d421cabebb114dab9b5f1cd63900b910 | | service_name | placement | | service_type | placement | | url | http://ren3:8778 | +--------------+----------------------------------+ [root@ren3 ~]# openstack endpoint create --region RegionOne placement internal http://ren3:8778 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | b50f00b3e45c4741856f300dce012dc2 | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | d421cabebb114dab9b5f1cd63900b910 | | service_name | placement | | service_type | placement | | url | http://ren3:8778 | +--------------+----------------------------------+ [root@ren3 ~]# openstack endpoint create --region RegionOne placement admin http://ren3:8778 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 6e64d3f4f9cd4bfbaea80c975e92d03a | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | d421cabebb114dab9b5f1cd63900b910 | | service_name | placement | | service_type | placement | | url | http://ren3:8778 | +--------------+----------------------------------+ [root@ren3 ~]# openstack endpoint list | grep placement | 6e64d3f4f9cd4bfbaea80c975e92d03a | RegionOne | placement | placement | True | admin | http://ren3:8778 | | b50f00b3e45c4741856f300dce012dc2 | RegionOne | placement | placement | True | internal | http://ren3:8778 | | bbf36665cd90488e9269a12bea3b839c | RegionOne | placement | placement | True | public | http://ren3:8778 |
9、安装nova软件包
[root@ren3 ~]# yum install openstack-nova-api openstack-nova-conductor openstack-nova-console openstack-nova-novncproxy openstack-nova-scheduler openstack-nova-placement-api -y
10、编辑/etc/nova/nova.conf文件
(1)在[DEFAULT]部分,启用计算和元数据api:
[DEFAULT]
# ...
enabled_apis = osapi_compute,metadata
(2)在[api_database]和[database]部分,配置数据库访问:
[api_database] # ... connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova_api [database] # ... connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova
(3)在[DEFAULT]部分,配置RabbitMQ消息队列访问:
[DEFAULT] # ... transport_url = rabbit://openstack:RABBIT_PASS@controller
(4)在[api]和[keystone_authtoken]部分,配置身份服务访问:
[api] # ... auth_strategy = keystone [keystone_authtoken] # ... auth_uri = http://controller:5000 auth_url = http://controller:35357 memcached_servers = controller:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = nova password = NOVA_PASS
(5)在[DEFAULT]部分,配置my_ip选项来使用控制器节点的管理接口IP地址:
[DEFAULT] # ... my_ip = 10.0.0.11
(6)在[DEFAULT]部分,启用对网络服务的支持:
[DEFAULT] # ... use_neutron = True firewall_driver = nova.virt.firewall.NoopFirewallDriver
(7)在[vnc]部分,配置vnc代理以使用控制节点的管理接口IP地址:
[vnc] enabled = true # ... vncserver_listen = $my_ip vncserver_proxyclient_address = $my_ip
(8)在[glance]部分,配置图像服务API的位置:
[glance] # ... api_servers = http://controller:9292
(9)在[oslo_concurrency]部分,配置锁路径:
[oslo_concurrency]
# ...
lock_path = /var/lib/nova/tmp
(10)在[placement]部分,配置放置API:
[placement] # ... os_region_name = RegionOne project_domain_name = Default project_name = service auth_type = password user_domain_name = Default auth_url = http://controller:35357/v3 username = placement password = PLACEMENT_PASS
修改后的配置文件:
[root@ren3 ~]# cd /etc/nova/
[root@ren3 nova]# ls
api-paste.ini nova.conf policy.json release rootwrap.conf
[root@ren3 nova]# cp nova.conf nova.conf.bak
[root@ren3 nova]# vim nova.conf
[DEFAULT] my_ip = 192.168.11.3 use_neutron = True firewall_driver = nova.virt.firewall.NoopFirewallDriver enabled_apis=osapi_compute,metadata transport_url = rabbit://openstack:admin@ren3 [api] auth_strategy = keystone [api_database] connection = mysql+pymysql://nova:NOVA_DBPASS@ren3/nova_api [barbican] [cache] [cells] [cinder] #os_region_name = RegionOne [cloudpipe] [conductor] [console] [consoleauth] [cors] [cors.subdomain] [crypto] [database] connection = mysql+pymysql://nova:NOVA_DBPASS@ren3/nova [ephemeral_storage_encryption] [filter_scheduler] [glance] api_servers = http://ren3:9292 [guestfs] [healthcheck] [hyperv] [image_file_url] [ironic] [key_manager] [keystone_authtoken] auth_uri = http://ren3:5000 auth_url = http://ren3:35357 memcached_servers = ren3:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = nova password = nova [libvirt] #virt_type = qemu [matchmaker_redis] [metrics] [mks] [neutron] #url = http://ren3:9696 #auth_url = http://ren3:35357 #auth_type = password #project_domain_name = default #user_domain_name = default #region_name = RegionOne #project_name = service #username = neutron #password = neutron #service_metadata_proxy = true #metadata_proxy_shared_secret = METADATA_SECRET [notifications] [osapi_v21] [oslo_concurrency] lock_path = /var/lib/nova/tmp [oslo_messaging_amqp] [oslo_messaging_kafka] [oslo_messaging_notifications] [oslo_messaging_rabbit] [oslo_messaging_zmq] [oslo_middleware] [oslo_policy] [pci] [placement] os_region_name = RegionOne auth_type = password auth_url = http://ren3:35357/v3 project_name = service project_domain_name = Default username = placement password = placement user_domain_name = Default [quota] [rdp] [remote_debug] [scheduler] [serial_console] [service_user] [spice] [ssl] [trusted_computing] [upgrade_levels] [vendordata_dynamic_auth] [vmware] [vnc] enabled = true vncserver_listen = $my_ip vncserver_proxyclient_address = $my_ip #novncproxy_base_url = http://192.168.11.3:6080/vnc_auto.html [workarounds] [wsgi] [xenserver] [xvp]
11、由于打包错误必须通过将以下配置添加到/etc/httpd/conf.d/00-nova- placi - API .conf来启用对放置API的访问:
[root@ren3 ~]# vim /etc/httpd/conf.d/00-nova-placement-api.conf
<Directory /usr/bin> <IfVersion >= 2.4> Require all granted </IfVersion> <IfVersion < 2.4> Order allow,deny Allow from all </IfVersion> </Directory>
重启httpd服务
[root@ren3 ~]# systemctl restart httpd
12、同步数据库数据(nova、nova-api、nova-cell0)
[root@ren3 ~]# su -s /bin/sh -c "nova-manage api_db sync" nova
[root@ren3 ~]# su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
[root@ren3 ~]# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
e02ac651-4481-48ce-aed3-ff4dfc75b026
[root@ren3 ~]# su -s /bin/sh -c "nova-manage db sync" nova
13、验证nova cell0和cell1注册正确:
[root@ren3 ~]# nova-manage cell_v2 list_cells +-------+--------------------------------------+ | Name | UUID | +-------+--------------------------------------+ | cell0 | 00000000-0000-0000-0000-000000000000 | | cell1 | e02ac651-4481-48ce-aed3-ff4dfc75b026 | +-------+--------------------------------------+
[root@ren3 ~]# mysql -u nova -pNOVA_DBPASS MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | nova | | nova_api | | nova_cell0 | +--------------------+ 4 rows in set (0.00 sec) MariaDB [nova]> show tables; +--------------------------------------------+ | Tables_in_nova | +--------------------------------------------+ | agent_builds | | aggregate_hosts | | aggregate_metadata | | aggregates | | allocations | | block_device_mapping | | bw_usage_cache | | cells | | certificates | | compute_nodes | | console_auth_tokens | | console_pools | | consoles | | dns_domains | | fixed_ips | | floating_ips | | instance_actions | | instance_actions_events | | instance_extra | | instance_faults | | instance_group_member | | instance_group_policy | | instance_groups | | instance_id_mappings | | instance_info_caches | | instance_metadata | | instance_system_metadata | | instance_type_extra_specs | | instance_type_projects | | instance_types | | instances | | inventories | | key_pairs | | migrate_version | | migrations | | networks | | pci_devices | | project_user_quotas | | provider_fw_rules | | quota_classes | | quota_usages | | quotas | | reservations | | resource_provider_aggregates | | resource_providers | | s3_images | | security_group_default_rules | | security_group_instance_association | | security_group_rules | | security_groups | | services | | shadow_agent_builds | | shadow_aggregate_hosts | | shadow_aggregate_metadata | | shadow_aggregates | | shadow_block_device_mapping | | shadow_bw_usage_cache | | shadow_cells | | shadow_certificates | | shadow_compute_nodes | | shadow_console_pools | | shadow_consoles | | shadow_dns_domains | | shadow_fixed_ips | | shadow_floating_ips | | shadow_instance_actions | | shadow_instance_actions_events | | shadow_instance_extra | | shadow_instance_faults | | shadow_instance_group_member | | shadow_instance_group_policy | | shadow_instance_groups | | shadow_instance_id_mappings | | shadow_instance_info_caches | | shadow_instance_metadata | | shadow_instance_system_metadata | | shadow_instance_type_extra_specs | | shadow_instance_type_projects | | shadow_instance_types | | shadow_instances | | shadow_key_pairs | | shadow_migrate_version | | shadow_migrations | | shadow_networks | | shadow_pci_devices | | shadow_project_user_quotas | | shadow_provider_fw_rules | | shadow_quota_classes | | shadow_quota_usages | | shadow_quotas | | shadow_reservations | | shadow_s3_images | | shadow_security_group_default_rules | | shadow_security_group_instance_association | | shadow_security_group_rules | | shadow_security_groups | | shadow_services | | shadow_snapshot_id_mappings | | shadow_snapshots | | shadow_task_log | | shadow_virtual_interfaces | | shadow_volume_id_mappings | | shadow_volume_usage_cache | | snapshot_id_mappings | | snapshots | | tags | | task_log | | virtual_interfaces | | volume_id_mappings | | volume_usage_cache | +--------------------------------------------+ 110 rows in set (0.00 sec) MariaDB [nova]> use nova_api MariaDB [nova_api]> show tables; +------------------------------+ | Tables_in_nova_api | +------------------------------+ | aggregate_hosts | | aggregate_metadata | | aggregates | | allocations | | build_requests | | cell_mappings | | flavor_extra_specs | | flavor_projects | | flavors | | host_mappings | | instance_group_member | | instance_group_policy | | instance_groups | | instance_mappings | | inventories | | key_pairs | | migrate_version | | placement_aggregates | | project_user_quotas | | quota_classes | | quota_usages | | quotas | | request_specs | | reservations | | resource_classes | | resource_provider_aggregates | | resource_providers | +------------------------------+ 27 rows in set (0.00 sec) MariaDB [nova_api]> use nova_cell0 MariaDB [nova_cell0]> show tables; +--------------------------------------------+ | Tables_in_nova_cell0 | +--------------------------------------------+ | agent_builds | | aggregate_hosts | | aggregate_metadata | | aggregates | | allocations | | block_device_mapping | | bw_usage_cache | | cells | | certificates | | compute_nodes | | console_auth_tokens | | console_pools | | consoles | | dns_domains | | fixed_ips | | floating_ips | | instance_actions | | instance_actions_events | | instance_extra | | instance_faults | | instance_group_member | | instance_group_policy | | instance_groups | | instance_id_mappings | | instance_info_caches | | instance_metadata | | instance_system_metadata | | instance_type_extra_specs | | instance_type_projects | | instance_types | | instances | | inventories | | key_pairs | | migrate_version | | migrations | | networks | | pci_devices | | project_user_quotas | | provider_fw_rules | | quota_classes | | quota_usages | | quotas | | reservations | | resource_provider_aggregates | | resource_providers | | s3_images | | security_group_default_rules | | security_group_instance_association | | security_group_rules | | security_groups | | services | | shadow_agent_builds | | shadow_aggregate_hosts | | shadow_aggregate_metadata | | shadow_aggregates | | shadow_block_device_mapping | | shadow_bw_usage_cache | | shadow_cells | | shadow_certificates | | shadow_compute_nodes | | shadow_console_pools | | shadow_consoles | | shadow_dns_domains | | shadow_fixed_ips | | shadow_floating_ips | | shadow_instance_actions | | shadow_instance_actions_events | | shadow_instance_extra | | shadow_instance_faults | | shadow_instance_group_member | | shadow_instance_group_policy | | shadow_instance_groups | | shadow_instance_id_mappings | | shadow_instance_info_caches | | shadow_instance_metadata | | shadow_instance_system_metadata | | shadow_instance_type_extra_specs | | shadow_instance_type_projects | | shadow_instance_types | | shadow_instances | | shadow_key_pairs | | shadow_migrate_version | | shadow_migrations | | shadow_networks | | shadow_pci_devices | | shadow_project_user_quotas | | shadow_provider_fw_rules | | shadow_quota_classes | | shadow_quota_usages | | shadow_quotas | | shadow_reservations | | shadow_s3_images | | shadow_security_group_default_rules | | shadow_security_group_instance_association | | shadow_security_group_rules | | shadow_security_groups | | shadow_services | | shadow_snapshot_id_mappings | | shadow_snapshots | | shadow_task_log | | shadow_virtual_interfaces | | shadow_volume_id_mappings | | shadow_volume_usage_cache | | snapshot_id_mappings | | snapshots | | tags | | task_log | | virtual_interfaces | | volume_id_mappings | | volume_usage_cache | +--------------------------------------------+ 110 rows in set (0.00 sec)
14、启动nova服务
[root@ren3 ~]# systemctl enable openstack-nova-api.service \ openstack-nova-consoleauth.service openstack-nova-scheduler.service \ openstack-nova-conductor.service openstack-nova-novncproxy.service [root@ren3 ~]# systemctl start openstack-nova-api.service \ openstack-nova-consoleauth.service openstack-nova-scheduler.service \ openstack-nova-conductor.service openstack-nova-novncproxy.service [root@ren3 ~]# systemctl status openstack-nova-api.service \ openstack-nova-consoleauth.service openstack-nova-scheduler.service \ openstack-nova-conductor.service openstack-nova-novncproxy.service |grep active |wc -l 5
[root@ren3 ~]# firewall-cmd --list-ports 4369/tcp 5672/tcp 15672/tcp 25672/tcp 3306/tcp 11211/tcp 80/tcp 35357/tcp 5000/tcp 9292/tcp 9191/tcp [root@ren3 ~]# ss -tnl State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 128 *:8775 *:* LISTEN 0 128 *:9191 *:* LISTEN 0 128 192.168.11.3:5672 *:* LISTEN 0 128 *:25672 *:* LISTEN 0 128 192.168.11.3:3306 *:* LISTEN 0 128 192.168.11.3:11211 *:* LISTEN 0 128 127.0.0.1:11211 *:* LISTEN 0 128 *:9292 *:* LISTEN 0 128 *:4369 *:* LISTEN 0 128 *:22 *:* LISTEN 0 128 *:15672 *:* LISTEN 0 100 127.0.0.1:25 *:* LISTEN 0 100 *:6080 *:* LISTEN 0 128 *:8774 *:* LISTEN 0 128 :::5000 :::* LISTEN 0 128 :::8778 :::* LISTEN 0 128 ::1:11211 :::* LISTEN 0 128 :::80 :::* LISTEN 0 128 :::22 :::* LISTEN 0 100 ::1:25 :::* LISTEN 0 128 :::35357 :::* [root@ren3 ~]# netstat -anp |grep 8775 tcp 0 0 0.0.0.0:8775 0.0.0.0:* LISTEN 18175/python2 [root@ren3 ~]# netstat -anp |grep 6080 tcp 0 0 0.0.0.0:6080 0.0.0.0:* LISTEN 18179/python2 [root@ren3 ~]# firewall-cmd --add-port=8774/tcp --permanent success [root@ren3 ~]# firewall-cmd --add-port=8775/tcp --permanent success [root@ren3 ~]# firewall-cmd --add-port=8778/tcp --permanent success [root@ren3 ~]# firewall-cmd --add-port=6080/tcp --permanent success [root@ren3 ~]# firewall-cmd --reload success
(二)安装和配置计算节点(ren4)
1、安装nova软件包
第一次安装失败,需要解决依赖关系
在控制节点操作:
[root@ren3 ~]# ls anaconda-ks.cfg openrc openstack-ocata --description openstack_app.tar.gz yum-repo.sh [root@ren3 ~]# cd openstack-ocata/ [root@ren3 openstack-ocata]# ls cirros-0.3.3-x86_64-disk.img openstack-compute-yilai [root@ren3 openstack-ocata]# scp -r openstack-compute-yilai/ ren4:/root/ qemu-img-ev-2.9.0-16.el7_4.8.1.x86_64 100% 2276KB 50.4MB/s 00:00 qemu-kvm-common-ev-2.9.0-16.el7_4.8.1 100% 913KB 28.2MB/s 00:00 qemu-kvm-ev-2.9.0-16.el7_4.8.1.x86_64 100% 2914KB 39.2MB/s 00:00
在计算节点操作:
[root@ren4 ~]# ls anaconda-ks.cfg openstack-compute-yilai yum-repo.sh [root@ren4 ~]# cd openstack-compute-yilai/ [root@ren4 openstack-compute-yilai]# ls qemu-img-ev-2.9.0-16.el7_4.8.1.x86_64.rpm qemu-kvm-common-ev-2.9.0-16.el7_4.8.1.x86_64.rpm qemu-kvm-ev-2.9.0-16.el7_4.8.1.x86_64.rpm [root@ren4 openstack-compute-yilai]# yum localinstall ./* -y
[root@ren4 ~]# yum install openstack-nova-compute -y
2、编辑/etc/nova/nova.conf文件
(1)[DEFAULT]部分,启用计算和元数据api:
[DEFAULT]
# ...
enabled_apis = osapi_compute,metadata
(2)在[DEFAULT]部分,配置RabbitMQ消息队列访问:
[DEFAULT] # ... transport_url = rabbit://openstack:RABBIT_PASS@controller
(3)在[api]和[keystone_authtoken]部分,配置身份服务访问:
[api] # ... auth_strategy = keystone [keystone_authtoken] # ... auth_uri = http://controller:5000 auth_url = http://controller:35357 memcached_servers = controller:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = nova password = NOVA_PASS
(4)在[DEFAULT]部分,配置my_ip选项:
[DEFAULT]
# ...
my_ip = MANAGEMENT_INTERFACE_IP_ADDRESS
(5)在[DEFAULT]部分,启用对网络服务的支持:
[DEFAULT] # ... use_neutron = True firewall_driver = nova.virt.firewall.NoopFirewallDriver
(6)在[vnc]部分,启用和配置远程控制台访问:
[vnc] # ... enabled = True vncserver_listen = 0.0.0.0 vncserver_proxyclient_address = $my_ip novncproxy_base_url = http://controller:6080/vnc_auto.html
(7)在[glance]部分,配置图像服务API的位置:
[glance] # ... api_servers = http://controller:9292
(8)在[oslo_concurrency]部分,配置锁路径:
[oslo_concurrency]
# ...
lock_path = /var/lib/nova/tmp
(9)在[placement]部分,配置放置API:
[placement] # ... os_region_name = RegionOne project_domain_name = Default project_name = service auth_type = password user_domain_name = Default auth_url = http://controller:35357/v3 username = placement password = PLACEMENT_PASS
(10)配置[libvirt]部分来使用QEMU
[libvirt]
# ...
virt_type = qemu
修改后的配置文件:
[root@ren4 ~]# cd /etc/nova/
[root@ren4 nova]# ls
api-paste.ini nova.conf policy.json release rootwrap.conf
[root@ren4 nova]# cp nova.conf nova.conf.bak
[root@ren4 nova]# vim nova.conf
[DEFAULT] my_ip = 192.168.11.4 use_neutron = True firewall_driver = nova.virt.firewall.NoopFirewallDriver enabled_apis=osapi_compute,metadata transport_url = rabbit://openstack:admin@ren3 [api] auth_strategy = keystone [api_database] #connection = mysql+pymysql://nova:NOVA_DBPASS@ren3/nova_api [barbican] [cache] [cells] [cinder] #os_region_name = RegionOne [cloudpipe] [conductor] [console] [consoleauth] [cors] [cors.subdomain] [crypto] [database] #connection = mysql+pymysql://nova:NOVA_DBPASS@ren3/nova [ephemeral_storage_encryption] [filter_scheduler] [glance] api_servers = http://ren3:9292 [guestfs] [healthcheck] [hyperv] [image_file_url] [ironic] [key_manager] [keystone_authtoken] auth_uri = http://ren3:5000 auth_url = http://ren3:35357 memcached_servers = ren3:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = nova password = nova [libvirt] virt_type = qemu [matchmaker_redis] [metrics] [mks] [neutron] #url = http://ren3:9696 #auth_url = http://ren3:35357 #auth_type = password #project_domain_name = default #user_domain_name = default #region_name = RegionOne #project_name = service #username = neutron #password = neutron #service_metadata_proxy = true #metadata_proxy_shared_secret = METADATA_SECRET [notifications] [osapi_v21] [oslo_concurrency] lock_path = /var/lib/nova/tmp [oslo_messaging_amqp] [oslo_messaging_kafka] [oslo_messaging_notifications] [oslo_messaging_rabbit] [oslo_messaging_zmq] [oslo_middleware] [oslo_policy] [pci] [placement] os_region_name = RegionOne auth_type = password auth_url = http://ren3:35357/v3 project_name = service project_domain_name = Default username = placement password = placement user_domain_name = Default [quota] [rdp] [remote_debug] [scheduler] [serial_console] [service_user] [spice] [ssl] [trusted_computing] [upgrade_levels] [vendordata_dynamic_auth] [vmware] [vnc] enabled = True vncserver_listen = 0.0.0.0 vncserver_proxyclient_address = $my_ip novncproxy_base_url = http://192.168.11.3:6080/vnc_auto.html [workarounds] [wsgi] [xenserver] [xvp]
3、启动服务
[root@ren4 ~]# systemctl enable libvirtd.service openstack-nova-compute.service Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-compute.service to /usr/lib/systemd/system/openstack-nova-compute.service. [root@ren4 ~]# systemctl start libvirtd.service openstack-nova-compute.service [root@ren4 ~]# ss -tnl State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 128 *:111 *:* LISTEN 0 128 *:22 *:* LISTEN 0 100 127.0.0.1:25 *:* LISTEN 0 128 :::111 :::* LISTEN 0 128 :::22 :::* LISTEN 0 100 ::1:25 :::* [root@ren4 ~]# systemctl status libvirtd.service openstack-nova-compute.service |grep active |wc -l 2
[root@ren4 ~]# firewall-cmd --add-port=111/tcp success [root@ren4 ~]# firewall-cmd --add-port=111/tcp --permanent success
4、将计算节点添加到cell数据库(在控制节点上运行)
(1)加载系统环境变量,并确认
[root@ren3 ~]# . openrc [root@ren3 ~]# openstack hypervisor list +----+---------------------+-----------------+--------------+-------+ | ID | Hypervisor Hostname | Hypervisor Type | Host IP | State | +----+---------------------+-----------------+--------------+-------+ | 1 | ren4 | QEMU | 192.168.11.4 | up | +----+---------------------+-----------------+--------------+-------+
(2)发现计算主机:
[root@ren3 ~]# su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova Found 2 cell mappings. Skipping cell0 since it does not contain hosts. Getting compute nodes from cell 'cell1': e02ac651-4481-48ce-aed3-ff4dfc75b026 Found 1 computes in cell: e02ac651-4481-48ce-aed3-ff4dfc75b026 Checking host mapping for compute host 'ren4': 84f6b8ad-b130-41e3-bcf1-1b25cfad1d77 Creating host mapping for compute host 'ren4': 84f6b8ad-b130-41e3-bcf1-1b25cfad1d77
当添加新的计算节点时,必须在控制节点上运行 nova-manage cell_v2 discover_hosts 来注册这些新的计算节点。或者,可以在/etc/nova/nova.conf中设置一个适当的间隔:
[scheduler] discover_hosts_in_cells_interval = 300
5、验证计算服务
(1)验证服务组件的启动
[root@ren3 ~]# openstack compute service list +----+------------+------+----------+---------+-------+--------------+ | ID | Binary | Host | Zone | Status | State | Updated At | +----+------------+------+----------+---------+-------+--------------+ | 1 | nova-conso | ren3 | internal | enabled | up | 2019-10-12T1 | | | leauth | | | | | 1:42:35.0000 | | | | | | | | 00 | | 2 | nova- | ren3 | internal | enabled | up | 2019-10-12T1 | | | conductor | | | | | 1:42:34.0000 | | | | | | | | 00 | | 3 | nova- | ren3 | internal | enabled | up | 2019-10-12T1 | | | scheduler | | | | | 1:42:35.0000 | | | | | | | | 00 | | 6 | nova- | ren4 | nova | enabled | up | 2019-10-12T1 | | | compute | | | | | 1:42:29.0000 | | | | | | | | 00 | +----+------------+------+----------+---------+-------+--------------+
[root@ren3 ~]# nova service-list +----+------------------+------+----------+---------+-------+----------------------------+-----------------+ | Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | +----+------------------+------+----------+---------+-------+----------------------------+-----------------+ | 1 | nova-consoleauth | ren3 | internal | enabled | up | 2019-10-14T02:10:33.000000 | - | | 2 | nova-conductor | ren3 | internal | enabled | up | 2019-10-14T02:10:42.000000 | - | | 3 | nova-scheduler | ren3 | internal | enabled | up | 2019-10-14T02:10:33.000000 | - | | 6 | nova-compute | ren4 | nova | enabled | up | 2019-10-14T02:10:40.000000 | - | +----+------------------+------+----------+---------+-------+----------------------------+-----------------+
这个输出应该表明在控制节点上启用了三个服务组件,在计算节点上启用了一个服务组件。
(2)列出身份服务中的API端点,以验证与身份服务的连接性:
[root@ren3 ~]# openstack catalog list +-----------+-----------+-----------------------------------+ | Name | Type | Endpoints | +-----------+-----------+-----------------------------------+ | nova | compute | RegionOne | | | | internal: http://ren3:8774/v2.1 | | | | RegionOne | | | | public: http://ren3:8774/v2.1 | | | | RegionOne | | | | admin: http://ren3:8774/v2.1 | | | | | | glance | image | RegionOne | | | | internal: http://ren3:9292 | | | | RegionOne | | | | admin: http://ren3:9292 | | | | RegionOne | | | | public: http://ren3:9292 | | | | | | keystone | identity | RegionOne | | | | public: http://ren3:5000/v3/ | | | | RegionOne | | | | internal: http://ren3:5000/v3/ | | | | RegionOne | | | | admin: http://ren3:35357/v3/ | | | | | | placement | placement | RegionOne | | | | admin: http://ren3:8778 | | | | RegionOne | | | | internal: http://ren3:8778 | | | | RegionOne | | | | public: http://ren3:8778 | | | | | +-----------+-----------+-----------------------------------+
(3)验证镜像服务的镜像
[root@ren3 ~]# glance image-list +--------------------------------------+--------+ | ID | Name | +--------------------------------------+--------+ | d8e9a113-edef-41a6-9778-622edf76de39 | cirros | +--------------------------------------+--------+
[root@ren3 ~]# openstack image list +--------------------------------------+--------+--------+ | ID | Name | Status | +--------------------------------------+--------+--------+ | d8e9a113-edef-41a6-9778-622edf76de39 | cirros | active | +--------------------------------------+--------+--------+
(4)检查cells和placement API是否正常工作:
[root@ren3 ~]# nova-status upgrade check
+---------------------------+
| Upgrade Check Results |
+---------------------------+
| Check: Cells v2 |
| Result: 成功 |
| Details: None |
+---------------------------+
| Check: Placement API |
| Result: 成功 |
| Details: None |
+---------------------------+
| Check: Resource Providers |
| Result: 成功 |
| Details: None |
+---------------------------+