[OpenStack]八、Nova计算服务部署

博主： justin
发布时间：2024 年 03 月 14 日
50 次浏览
关闭评论
24886字数
分类：云计算

概要介绍

之前我们学习了keystone认证服务，glance镜像服务，这些服务包括之后学习的Neutron服务，我们从图片中可以发现都有箭头指向VM（实例），这次我们要学习的是创建VM和管理其生命周期的服务——Nova服务。

Nova服务会去调用底层的KVM等等去创建我们的虚拟机。

下面我们来部署服务

【控制节点】

官方文档：https://docs.openstack.org/nova/queens/install/controller-install-rdo.html

创建nova，nova_api，nova_cell0数据库

`mysql -uroot -p000000`<br />`    MariaDB [(none)]> CREATE DATABASE nova_api;`<br />`    MariaDB [(none)]> CREATE DATABASE nova;`<br />`    MariaDB [(none)]> CREATE DATABASE nova_cell0;`<br />

创建数据库nova用户并进行对以上数据库的授权

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
IDENTIFIED BY '000000';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
IDENTIFIED BY '000000';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
IDENTIFIED BY '000000';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
IDENTIFIED BY '000000';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
IDENTIFIED BY '000000';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
IDENTIFIED BY '000000';

创建nova用户，并赋予admin角色

source admin-openrc
openstack user create --domain default --password-prompt nova
返回：

[root@controller ~]# openstack user create --domain default --password-prompt nova
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 8052a8338b9740969d3dbacf484716ac |
| name                | nova                             |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

接着：
openstack role add --project service --user nova admin

创建nova服务，并创建endpoint（服务API入口）

openstack service create --name nova \
--description "OpenStack Compute" compute
openstack endpoint create --region RegionOne \
compute internal http://controller:8774/v2.1
openstack endpoint create --region RegionOne \
compute public http://controller:8774/v2.1
openstack endpoint create --region RegionOne \
compute admin http://controller:8774/v2.1

运行结果:

[root@controller ~]# openstack service create --name nova \
> --description "OpenStack Compute" compute
4/v2.1
openstack endpoint create --region RegionOne \
compute admin http://controller:8774/v2.1+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute                |
| enabled     | True                             |
| id          | 8e7de12ad621403fb95d0a2bbc8c47af |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne \
> compute internal http://controller:8774/v2.1
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | c9d717d5a33544e8aecae95b3add0f42 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8e7de12ad621403fb95d0a2bbc8c47af |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller:8774/v2.1      |
+--------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne \
> compute public http://controller:8774/v2.1
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 1cf03146ee544acba6bec34001239104 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8e7de12ad621403fb95d0a2bbc8c47af |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller:8774/v2.1      |
+--------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne \
> compute admin http://controller:8774/v2.1
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 5c8a70f3262849fbbcfc4556d1d69253 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8e7de12ad621403fb95d0a2bbc8c47af |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller:8774/v2.1      |
+--------------+----------------------------------+

检验

查看已有的服务列表

openstack service list
返回：

[root@controller ~]# openstack service list
+----------------------------------+----------+----------+
| ID                               | Name     | Type     |
+----------------------------------+----------+----------+
| 7d443f3f0f7c4dbdb9a835dce79d74ad | glance   | image    |
| 8e7de12ad621403fb95d0a2bbc8c47af | nova     | compute  |
| d6e5eba119ac4c9597f442300b126e19 | keystone | identity |
+----------------------------------+----------+----------+

检查nova的endpoint

openstack endpoint list | grep nova

[root@controller ~]# openstack endpoint list | grep nova
| 1cf03146ee544acba6bec34001239104 | RegionOne | nova         | compute      | True    | public    | http://controller:8774/v2.1 |
| 5c8a70f3262849fbbcfc4556d1d69253 | RegionOne | nova         | compute      | True    | admin     | http://controller:8774/v2.1 |
| c9d717d5a33544e8aecae95b3add0f42 | RegionOne | nova         | compute      | True    | internal  | http://controller:8774/v2.1 |

创建placement用户，并赋予admin角色

`openstack user create --domain default --password-prompt placement`<br />返回：

[root@controller ~]# openstack user create --domain default --password-prompt placement
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 18232d8448304d1591a69fa936b9d7df |
| name                | placement                        |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

接着：
openstack role add --project service --user placement admin

创建placement服务，并创建其endpoint

placement服务是从P版本开始，解耦出来的Nova的API
openstack service create --name placement --description "Placement API" placement
openstack endpoint create --region RegionOne placement public http://controller:8778
openstack endpoint create --region RegionOne placement internal http://controller:8778
openstack endpoint create --region RegionOne placement admin http://controller:8778

[root@controller ~]# openstack service create --name placement --description "Placement API" placement
    openstack endpoint create --region RegionOne placement admin http://controller:8778+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | Placement API                    |
| enabled     | True                             |
| id          | ac98da1be794488390f4c2c5403bacc3 |
| name        | placement                        |
| type        | placement                        |
+-------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne placement public http://controller:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | c8db5f43badf4931b6a3de2259e5eaf5 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ac98da1be794488390f4c2c5403bacc3 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne placement internal http://controller:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 1832efdebedf4bbeb3e63651f85a82c0 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ac98da1be794488390f4c2c5403bacc3 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne placement admin http://controller:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | e174900f092645ac8d281e9288f2fd7b |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ac98da1be794488390f4c2c5403bacc3 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+

检查：

检查palcement云服务是否启动

openstack service list | grep placement

[root@controller ~]# openstack service list | grep placement
| ac98da1be794488390f4c2c5403bacc3 | placement | placement |

检查用户列表

openstack user list | egrep 'nova|placement'

[root@controller ~]# openstack user list | egrep 'nova|placement'
| 18232d8448304d1591a69fa936b9d7df | placement |
| 8052a8338b9740969d3dbacf484716ac | nova      |

安装软件包：

openstack-nova-api
openstack-nova-conductor
openstack-nova-console
openstack-nova-novncproxy
openstack-nova-scheduler
openstack-nova-placement-api

yum install openstack-nova-api openstack-nova-conductor `\`
openstack-nova-console openstack-nova-novncproxy `\`
openstack-nova-scheduler openstack-nova-placement-api

修改/etc/nova/nova.conf配置文件：

vim /etc/nova.nova.conf

 [DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:openstack@controller     (注意这里的密码填的是消息队列的密码)
my_ip = 192.168.100.10               (控制节点的IP)
use_neutron = True          (是否开启网络服务，这个在之后我们会安装这个服务的)
firewall_driver = nova.virt.firewall.NoopFirewallDriver   (防火墙插件)
 
[api]
auth_strategy = keystone
 
[api_database]
connection = mysql+pymysql://nova:000000@controller/nova_api
 
[database]
connection = mysql+pymysql://nova:000000@controller/nova
 
[glance]
api_servers = http://controller:9292
 
[keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = 000000
 
[oslo_concurrency]       这只是一个插件,给py代码块提供锁的,浩哥说不重要，no care.
lock_path = /var/lib/nova/tmp
 
[placement]
os_region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = 000000

[vnc]   (远程控制)
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip

检查配置是否保存：

cat /etc/nova/nova.conf | egrep -v '^$|^#'

[root@controller ~]# cat /etc/nova/nova.conf | egrep -v '^$|^#'
[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:openstack@controller
my_ip = 192.168.100.10
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver 
[api]
auth_strategy = keystone
[api_database]
connection = mysql+pymysql://nova:000000@controller/nova_api
[barbican]
[cache]
[cells]
[cinder]
[compute]
[conductor]
[console]
[consoleauth]
[cors]
[crypto]
[database]
connection = mysql+pymysql://nova:000000@controller/nova
[devices]
[ephemeral_storage_encryption]
[filter_scheduler]
[glance]
api_servers = http://controller:9292
[guestfs]
[healthcheck]
[hyperv]
[ironic]
[key_manager]
[keystone]
[keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = 000000
[libvirt]
[matchmaker_redis]
[metrics]
[mks]
[neutron]
[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
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = 000000
[quota]
[rdp]
[remote_debug]
[scheduler]
[serial_console]
[service_user]
[spice]
[upgrade_levels]
[vault]
[vendordata_dynamic_auth]
[vmware]
[vnc]
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip
[workarounds]
[wsgi]
[xenserver]
[xvp]

编辑/etc/httpd/conf.d/00-nova-placement-api.conf配置文件

Due to a packaging bug, you must enable access to the Placement API by adding the following configuration to /etc/httpd/conf.d/00-nova-placement-api.conf.

添加如下配置：添加，添加，添加
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

systemctl restart httpd

检查状态

systemctl status httpd

同步nova_api数据库

su -s /bin/sh -c "nova-manage api_db sync" nova

注册cell0数据库

su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova

创建cell1单元格

su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova

同步nova数据库

su -s /bin/sh -c "nova-manage db sync" nova

验证cell0和cell1

nova-manage cell_v2 list_cells
返回：

[root@controller ~]# nova-manage cell_v2 list_cells
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+
|  名称 |                 UUID                 |           Transport URL            |                    数据库连接                   |
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 |               none:/               | mysql+pymysql://nova:****@controller/nova_cell0 |
| cell1 | 42e8ba2b-db2d-4d13-b404-31a3f5da7626 | rabbit://openstack:****@controller |    mysql+pymysql://nova:****@controller/nova    |
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+

启动nova相关服务

`systemctl ``enable`` openstack-nova-api.service ``\`<br />`  openstack-nova-consoleauth.service openstack-nova-scheduler.service ``\`<br />`  openstack-nova-conductor.service openstack-nova-novncproxy.service`<br />`systemctl start openstack-nova-api.service ``\`<br />`  openstack-nova-consoleauth.service openstack-nova-scheduler.service ``\`<br />`  openstack-nova-conductor.service openstack-nova-novncproxy.service`

查看nova服务状态：

`systemctl status openstack-nova-api.service \`<br />` openstack-nova-consoleauth.service openstack-nova-scheduler.service \`<br />` openstack-nova-conductor.service openstack-nova-novncproxy.service`<br />返回：

[root@controller ~]# systemctl status openstack-nova-api.service \
>  openstack-nova-consoleauth.service openstack-nova-scheduler.service \
>  openstack-nova-conductor.service openstack-nova-novncproxy.service
● openstack-nova-api.service - OpenStack Nova API Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-api.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:49:00 CST; 245ms ago
 Main PID: 7289 (nova-api)
   CGroup: /system.slice/openstack-nova-api.service
           ├─7289 /usr/bin/python2 /usr/bin/nova-api
           ├─7357 /usr/bin/python2 /usr/bin/nova-api
           ├─7358 /usr/bin/python2 /usr/bin/nova-api
           ├─7361 /usr/bin/python2 /usr/bin/nova-api
           └─7362 /usr/bin/python2 /usr/bin/nova-api

5月 19 00:48:44 controller systemd[1]: Starting OpenStack Nova API Server...
5月 19 00:49:00 controller systemd[1]: Started OpenStack Nova API Server.

● openstack-nova-consoleauth.service - OpenStack Nova VNC console auth Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-consoleauth.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:48:53 CST; 6s ago
 Main PID: 7290 (nova-consoleaut)
   CGroup: /system.slice/openstack-nova-consoleauth.service
           └─7290 /usr/bin/python2 /usr/bin/nova-consoleauth

5月 19 00:48:44 controller systemd[1]: Starting OpenStack Nova VNC console auth Server...
5月 19 00:48:53 controller systemd[1]: Started OpenStack Nova VNC console auth Server.

● openstack-nova-scheduler.service - OpenStack Nova Scheduler Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-scheduler.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:48:55 CST; 4s ago
 Main PID: 7291 (nova-scheduler)
   CGroup: /system.slice/openstack-nova-scheduler.service
           └─7291 /usr/bin/python2 /usr/bin/nova-scheduler

5月 19 00:48:44 controller systemd[1]: Starting OpenStack Nova Scheduler Server...
5月 19 00:48:55 controller systemd[1]: Started OpenStack Nova Scheduler Server.

● openstack-nova-conductor.service - OpenStack Nova Conductor Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-conductor.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:48:50 CST; 10s ago
 Main PID: 7292 (nova-conductor)
   CGroup: /system.slice/openstack-nova-conductor.service
           ├─7292 /usr/bin/python2 /usr/bin/nova-conductor
           ├─7346 /usr/bin/python2 /usr/bin/nova-conductor
           └─7347 /usr/bin/python2 /usr/bin/nova-conductor

5月 19 00:48:44 controller systemd[1]: Starting OpenStack Nova Conductor Server...
5月 19 00:48:50 controller systemd[1]: Started OpenStack Nova Conductor Server.

● openstack-nova-novncproxy.service - OpenStack Nova NoVNC Proxy Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-novncproxy.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:48:44 CST; 16s ago
 Main PID: 7293 (nova-novncproxy)
   CGroup: /system.slice/openstack-nova-novncproxy.service
           └─7293 /usr/bin/python2 /usr/bin/nova-novncproxy --web /usr/share/novnc/

【计算节点】

官方文档：https://docs.openstack.org/nova/queens/install/compute-install-rdo.html#install-and-configure-components

安装包：openstack-nova-compute

yum install openstack-nova-compute -y

编辑/etc/nova/nova.conf配置文件

vim /etc/nova/nova.conf

 [DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:openstack@controller
my_ip = 192.168.100.20
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
    
 [api]
auth_strategy = keystone

 [glance]
api_servers = http://controller:9292

 [keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = 000000

    [placement]
os_region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = 000000
 
[oslo_concurrency]
lock_path = /var/lib/nova/tmp

    [vnc]
enabled = True
server_listen = 0.0.0.0
server_proxyclient_address = $my_ip
novncproxy_base_url = http://controller:6080/vnc_auto.html

 [libvirt] 
virt_type = qemu

$ egrep -c '(vmx|svm)' /proc/cpuinfo
返回0，不支持(通过这条命令能够看出底层硬件是否支持虚拟化技术)
If this command returns a value of one or greater, your compute node supports hardware acceleration which typically requires no additional configuration.
If this command returns a value of zero, your compute node does not support hardware acceleration and you must configure libvirt to use QEMU instead of KVM.（这里建议不管支不支持，我们都要将libvirt配置加上）

手动打开虚拟机的虚拟化:

先关机，然后设置如下图

勾选虚拟化。

启动nova相关服务：

`systemctl start libvirtd.service openstack-nova-compute.service&&systemctl enable libvirtd.service openstack-nova-compute.service`

检查nova相关服务状态

systemctl status libvirtd.service openstack-nova-compute.service

检查nova关键组件

openstack compute service list
返回：

[root@controller ~]# openstack compute service list
+----+------------------+------------+----------+---------+-------+----------------------------+
| ID | Binary           | Host       | Zone     | Status  | State | Updated At                 |
+----+------------------+------------+----------+---------+-------+----------------------------+
|  1 | nova-scheduler   | controller | internal | enabled | up    | 2020-05-19T07:00:49.000000 |
|  2 | nova-consoleauth | controller | internal | enabled | up    | 2020-05-19T07:00:51.000000 |
|  3 | nova-conductor   | controller | internal | enabled | up    | 2020-05-19T07:00:49.000000 |
|  6 | nova-compute     | compute    | nova     | enabled | up    | 2020-05-19T07:00:57.000000 |
+----+------------------+------------+----------+---------+-------+----------------------------+

其他验证操作：

[https://docs.openstack.org/nova/queens/install/verify.html](https://docs.openstack.org/nova/queens/install/verify.html)

Add the compute node to the cell database

检查compute节点服务列表

Source the admin credentials to enable admin-only CLI commands, then confirm there are compute hosts in the database.

openstack compute service list --service nova-compute
返回：

[root@controller ~]# openstack compute service list --service nova-compute
+----+--------------+---------+------+---------+-------+----------------------------+
| ID | Binary       | Host    | Zone | Status  | State | Updated At                 |
+----+--------------+---------+------+---------+-------+----------------------------+
|  6 | nova-compute | compute | nova | enabled | up    | 2020-05-19T06:46:06.000000 |
+----+--------------+---------+------+---------+-------+----------------------------+

发现后继创建节点

su -s /bin/sh -c `"nova-manage cell_v2 discover_hosts --verbose"` nova

此外还可以设置定时查看有无新增节点
When you add new compute nodes, you must run nova-manage cell_v2 discover_hosts on the controller node to register those new compute nodes. Alternatively, you can set an appropriate interval in /etc/nova/nova.conf:

[scheduler]
discover_hosts_in_cells_interval = 300

<br />

最后修改：2024 年 03 月 14 日

如果觉得我的文章对你有用，请随意赞赏

此处评论已关闭

[OpenStack]八、Nova计算服务部署

justin • 2024 年 03 月 14 日

<p><a name="i97QY"></a></p><h1>概要介绍</h1><p><img src="https://cdn.nlark.com/yuque/0/2020/png/405775/1589805197529-b026ecb8-04c3-412e-8534-106adbcd639f.png#align=left&display=inline&height=531&originHeight=531&originWidth=773&size=0&status=done&style=none&width=773" alt="" title="" style=""><br /><img src="http://qiniu.justinwuwei.cn/20200511014428.png" alt="" title="" style=""></p><p>之前我们学习了keystone认证服务，glance镜像服务，这些服务包括之后学习的Neutron服务，我们从图片中可以发现都有箭头指向VM（实例），这次我们要学习的是创建VM和管理其生命周期的服务——Nova服务。</p><p>Nova服务会去调用底层的KVM等等去创建我们的虚拟机。</p><p>下面我们来部署服务<br><a name="E5PtX"></a></p><h1>【控制节点】</h1><p>官方文档：<span class="external-link"><a class="no-external-link" href="https://docs.openstack.org/nova/queens/install/controller-install-rdo.html" target="_blank"><i data-feather="external-link"></i>https://docs.openstack.org/nova/queens/install/controller-install-rdo.html</a></span><br><a name="BtAkA"></a></p><h2>创建nova，nova_api，nova_cell0数据库</h2><pre><code>`mysql -uroot -p000000`&lt;br /&gt;`    MariaDB [(none)]&gt; CREATE DATABASE nova_api;`&lt;br /&gt;`    MariaDB [(none)]&gt; CREATE DATABASE nova;`&lt;br /&gt;`    MariaDB [(none)]&gt; CREATE DATABASE nova_cell0;`&lt;br /&gt; </code></pre><p><a name="ZdkjC"></a></p><h2>创建数据库nova用户并进行对以上数据库的授权</h2><p> <br />    <code>MariaDB [(none)]&gt; GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \</code><br /><code> IDENTIFIED BY '000000';</code><br /><code>    MariaDB [(none)]&gt; GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \</code><br /><code>  IDENTIFIED BY '000000';</code><br /><code>    MariaDB [(none)]&gt; GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \</code><br /><code>  IDENTIFIED BY '000000';</code><br /><code>    MariaDB [(none)]&gt; GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \</code><br /><code>  IDENTIFIED BY '000000';</code><br /><code>    MariaDB [(none)]&gt; GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \</code><br /><code>  IDENTIFIED BY '000000';</code><br /><code>    MariaDB [(none)]&gt; GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \</code><br /><code>  IDENTIFIED BY '000000';</code><br /> <br><a name="vM7U2"></a></p><h2>创建nova用户，并赋予admin角色</h2><p><code>source admin-openrc</code><br />    <code>openstack user create --domain default --password-prompt nova</code><br />返回：</p><pre><code>[root@controller ~]# openstack user create --domain default --password-prompt nova
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 8052a8338b9740969d3dbacf484716ac |
| name                | nova                             |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+</code></pre><p>接着：<br /><code>openstack role add --project service --user nova admin</code></p><p><a name="uO40s"></a></p><h2>创建nova服务，并创建endpoint（服务API入口）</h2><pre><code>openstack service create --name nova \
--description &quot;OpenStack Compute&quot; compute
openstack endpoint create --region RegionOne \
compute internal http://controller:8774/v2.1
openstack endpoint create --region RegionOne \
compute public http://controller:8774/v2.1
openstack endpoint create --region RegionOne \
compute admin http://controller:8774/v2.1</code></pre><p> 运行结果:</p><pre><code>[root@controller ~]# openstack service create --name nova \
&gt; --description &quot;OpenStack Compute&quot; compute
4/v2.1
openstack endpoint create --region RegionOne \
compute admin http://controller:8774/v2.1+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute                |
| enabled     | True                             |
| id          | 8e7de12ad621403fb95d0a2bbc8c47af |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne \
&gt; compute internal http://controller:8774/v2.1
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | c9d717d5a33544e8aecae95b3add0f42 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8e7de12ad621403fb95d0a2bbc8c47af |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller:8774/v2.1      |
+--------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne \
&gt; compute public http://controller:8774/v2.1
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 1cf03146ee544acba6bec34001239104 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8e7de12ad621403fb95d0a2bbc8c47af |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller:8774/v2.1      |
+--------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne \
&gt; compute admin http://controller:8774/v2.1
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 5c8a70f3262849fbbcfc4556d1d69253 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 8e7de12ad621403fb95d0a2bbc8c47af |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller:8774/v2.1      |
+--------------+----------------------------------+</code></pre><p><a name="92pcJ"></a></p><h3>检验</h3><p><a name="S1rWA"></a></p><h4>查看已有的服务列表</h4><p><code>openstack service list</code><br />返回：</p><pre><code>[root@controller ~]# openstack service list
+----------------------------------+----------+----------+
| ID                               | Name     | Type     |
+----------------------------------+----------+----------+
| 7d443f3f0f7c4dbdb9a835dce79d74ad | glance   | image    |
| 8e7de12ad621403fb95d0a2bbc8c47af | nova     | compute  |
| d6e5eba119ac4c9597f442300b126e19 | keystone | identity |
+----------------------------------+----------+----------+</code></pre><p><a name="DUu6Z"></a></p><h4>检查nova的endpoint</h4><p><code>openstack endpoint list | grep nova</code></p><pre><code>[root@controller ~]# openstack endpoint list | grep nova
| 1cf03146ee544acba6bec34001239104 | RegionOne | nova         | compute      | True    | public    | http://controller:8774/v2.1 |
| 5c8a70f3262849fbbcfc4556d1d69253 | RegionOne | nova         | compute      | True    | admin     | http://controller:8774/v2.1 |
| c9d717d5a33544e8aecae95b3add0f42 | RegionOne | nova         | compute      | True    | internal  | http://controller:8774/v2.1 |</code></pre><p><a name="K4Ikz"></a></p><h2>创建placement用户，并赋予admin角色</h2><pre><code>`openstack user create --domain default --password-prompt placement`&lt;br /&gt;返回：</code></pre><pre><code>[root@controller ~]# openstack user create --domain default --password-prompt placement
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 18232d8448304d1591a69fa936b9d7df |
| name                | placement                        |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+</code></pre><p>接着：<br /><code>openstack role add --project service --user placement admin</code></p><p><a name="H6sTe"></a></p><h2>创建placement服务，并创建其endpoint</h2><p>placement服务是从P版本开始，解耦出来的Nova的API<br />    <code>openstack service create --name placement --description &quot;Placement API&quot; placement</code><br /><code>    openstack endpoint create --region RegionOne placement public http://controller:8778</code><br /><code>    openstack endpoint create --region RegionOne placement internal http://controller:8778</code><br /><code>    openstack endpoint create --region RegionOne placement admin http://controller:8778</code></p><pre><code>[root@controller ~]# openstack service create --name placement --description &quot;Placement API&quot; placement
    openstack endpoint create --region RegionOne placement admin http://controller:8778+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | Placement API                    |
| enabled     | True                             |
| id          | ac98da1be794488390f4c2c5403bacc3 |
| name        | placement                        |
| type        | placement                        |
+-------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne placement public http://controller:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | c8db5f43badf4931b6a3de2259e5eaf5 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ac98da1be794488390f4c2c5403bacc3 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne placement internal http://controller:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 1832efdebedf4bbeb3e63651f85a82c0 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ac98da1be794488390f4c2c5403bacc3 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+
[root@controller ~]# openstack endpoint create --region RegionOne placement admin http://controller:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | e174900f092645ac8d281e9288f2fd7b |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ac98da1be794488390f4c2c5403bacc3 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+</code></pre><p><a name="O9DxB"></a></p><h3>检查：</h3><p><a name="iAOXZ"></a></p><h4>检查palcement云服务是否启动</h4><p><code>openstack service list | grep placement</code></p><pre><code>[root@controller ~]# openstack service list | grep placement
| ac98da1be794488390f4c2c5403bacc3 | placement | placement |</code></pre><p><a name="IIoGh"></a></p><h4>检查用户列表</h4><p><code>openstack user list | egrep 'nova|placement'</code></p><pre><code>[root@controller ~]# openstack user list | egrep 'nova|placement'
| 18232d8448304d1591a69fa936b9d7df | placement |
| 8052a8338b9740969d3dbacf484716ac | nova      |</code></pre><p><a name="kD4O3"></a></p><h2>安装软件包：</h2><p> openstack-nova-api  <br /> openstack-nova-conductor<br /> openstack-nova-console  <br /> openstack-nova-novncproxy<br /> openstack-nova-scheduler<br /> openstack-nova-placement-api</p><p><code>yum install openstack-nova-api openstack-nova-conductor </code>`\`<br /><code>  openstack-nova-console openstack-nova-novncproxy </code>`\`<br /><code>  openstack-nova-scheduler openstack-nova-placement-api</code><br><a name="G4Esu"></a></p><h2>修改/etc/nova/nova.conf配置文件：</h2><p><code>vim /etc/nova.nova.conf</code></p><pre><code> [DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:openstack@controller     (注意这里的密码填的是消息队列的密码)
my_ip = 192.168.100.10               (控制节点的IP)
use_neutron = True          (是否开启网络服务，这个在之后我们会安装这个服务的)
firewall_driver = nova.virt.firewall.NoopFirewallDriver   (防火墙插件)
 
[api]
auth_strategy = keystone
 
[api_database]
connection = mysql+pymysql://nova:000000@controller/nova_api
 
[database]
connection = mysql+pymysql://nova:000000@controller/nova
 
[glance]
api_servers = http://controller:9292
 
[keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = 000000
 
[oslo_concurrency]       这只是一个插件,给py代码块提供锁的,浩哥说不重要，no care.
lock_path = /var/lib/nova/tmp
 
[placement]
os_region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = 000000

[vnc]   (远程控制)
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip</code></pre><p><a name="qorIN"></a></p><h3>检查配置是否保存：</h3><p><code>cat /etc/nova/nova.conf | egrep -v '^$|^#'</code></p><pre><code>[root@controller ~]# cat /etc/nova/nova.conf | egrep -v '^$|^#'
[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:openstack@controller
my_ip = 192.168.100.10
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver 
[api]
auth_strategy = keystone
[api_database]
connection = mysql+pymysql://nova:000000@controller/nova_api
[barbican]
[cache]
[cells]
[cinder]
[compute]
[conductor]
[console]
[consoleauth]
[cors]
[crypto]
[database]
connection = mysql+pymysql://nova:000000@controller/nova
[devices]
[ephemeral_storage_encryption]
[filter_scheduler]
[glance]
api_servers = http://controller:9292
[guestfs]
[healthcheck]
[hyperv]
[ironic]
[key_manager]
[keystone]
[keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = 000000
[libvirt]
[matchmaker_redis]
[metrics]
[mks]
[neutron]
[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
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = 000000
[quota]
[rdp]
[remote_debug]
[scheduler]
[serial_console]
[service_user]
[spice]
[upgrade_levels]
[vault]
[vendordata_dynamic_auth]
[vmware]
[vnc]
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip
[workarounds]
[wsgi]
[xenserver]
[xvp]</code></pre><p><a name="IdnKe"></a></p><h2>编辑/etc/httpd/conf.d/00-nova-placement-api.conf配置文件</h2><p>Due to a <span class="external-link"><a class="no-external-link" href="https://bugzilla.redhat.com/show_bug.cgi?id=1430540" target="_blank"><i data-feather="external-link"></i>packaging bug</a></span>, you must enable access to the Placement API by adding the following configuration to /etc/httpd/conf.d/00-nova-placement-api.conf.</p><p>添加如下配置：添加，添加，添加<br /><code>vim /etc/httpd/conf.d/00-nova-placement-api.conf</code></p><pre><code>&lt;Directory /usr/bin&gt;
    &lt;IfVersion &gt;= 2.4&gt;
    Require all granted
    &lt;/IfVersion&gt;
    &lt;IfVersion &lt; 2.4&gt;
    Order allow,deny
    Allow from all
    &lt;/IfVersion&gt;
 &lt;/Directory&gt;</code></pre><p><a name="kCpQw"></a></p><h2>重启httpd服务</h2><p><code>systemctl restart httpd</code><br><a name="UXXIm"></a></p><h3>检查状态</h3><p><code>systemctl status httpd</code><br><a name="GtxO0"></a></p><h2>同步nova_api数据库</h2><p><code>su -s /bin/sh -c &quot;nova-manage api_db sync&quot; nova</code><br><a name="FeD1Q"></a></p><h2>注册cell0数据库</h2><p><code>su -s /bin/sh -c &quot;nova-manage cell_v2 map_cell0&quot; nova</code><br><a name="rKJPI"></a></p><h2>创建cell1单元格</h2><p><code>su -s /bin/sh -c &quot;nova-manage cell_v2 create_cell --name=cell1 --verbose&quot; nova</code><br><a name="SVQqk"></a></p><h2>同步nova数据库</h2><p><code>su -s /bin/sh -c &quot;nova-manage db sync&quot; nova</code><br><a name="VgAyp"></a></p><h2>验证cell0和cell1</h2><p><code>nova-manage cell_v2 list_cells</code><br />返回：</p><pre><code>[root@controller ~]# nova-manage cell_v2 list_cells
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+
|  名称 |                 UUID                 |           Transport URL            |                    数据库连接                   |
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 |               none:/               | mysql+pymysql://nova:****@controller/nova_cell0 |
| cell1 | 42e8ba2b-db2d-4d13-b404-31a3f5da7626 | rabbit://openstack:****@controller |    mysql+pymysql://nova:****@controller/nova    |
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+</code></pre><p><a name="DCyFS"></a></p><h2>启动nova相关服务</h2><pre><code>`systemctl ``enable`` openstack-nova-api.service ``\`&lt;br /&gt;`  openstack-nova-consoleauth.service openstack-nova-scheduler.service ``\`&lt;br /&gt;`  openstack-nova-conductor.service openstack-nova-novncproxy.service`&lt;br /&gt;`systemctl start openstack-nova-api.service ``\`&lt;br /&gt;`  openstack-nova-consoleauth.service openstack-nova-scheduler.service ``\`&lt;br /&gt;`  openstack-nova-conductor.service openstack-nova-novncproxy.service`</code></pre><p><a name="Q7HA1"></a></p><h3>查看nova服务状态：</h3><pre><code>`systemctl status openstack-nova-api.service \`&lt;br /&gt;` openstack-nova-consoleauth.service openstack-nova-scheduler.service \`&lt;br /&gt;` openstack-nova-conductor.service openstack-nova-novncproxy.service`&lt;br /&gt;返回：</code></pre><pre><code>[root@controller ~]# systemctl status openstack-nova-api.service \
&gt;  openstack-nova-consoleauth.service openstack-nova-scheduler.service \
&gt;  openstack-nova-conductor.service openstack-nova-novncproxy.service
● openstack-nova-api.service - OpenStack Nova API Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-api.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:49:00 CST; 245ms ago
 Main PID: 7289 (nova-api)
   CGroup: /system.slice/openstack-nova-api.service
           ├─7289 /usr/bin/python2 /usr/bin/nova-api
           ├─7357 /usr/bin/python2 /usr/bin/nova-api
           ├─7358 /usr/bin/python2 /usr/bin/nova-api
           ├─7361 /usr/bin/python2 /usr/bin/nova-api
           └─7362 /usr/bin/python2 /usr/bin/nova-api

5月 19 00:48:44 controller systemd[1]: Starting OpenStack Nova API Server...
5月 19 00:49:00 controller systemd[1]: Started OpenStack Nova API Server.

● openstack-nova-consoleauth.service - OpenStack Nova VNC console auth Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-consoleauth.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:48:53 CST; 6s ago
 Main PID: 7290 (nova-consoleaut)
   CGroup: /system.slice/openstack-nova-consoleauth.service
           └─7290 /usr/bin/python2 /usr/bin/nova-consoleauth

5月 19 00:48:44 controller systemd[1]: Starting OpenStack Nova VNC console auth Server...
5月 19 00:48:53 controller systemd[1]: Started OpenStack Nova VNC console auth Server.

● openstack-nova-scheduler.service - OpenStack Nova Scheduler Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-scheduler.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:48:55 CST; 4s ago
 Main PID: 7291 (nova-scheduler)
   CGroup: /system.slice/openstack-nova-scheduler.service
           └─7291 /usr/bin/python2 /usr/bin/nova-scheduler

5月 19 00:48:44 controller systemd[1]: Starting OpenStack Nova Scheduler Server...
5月 19 00:48:55 controller systemd[1]: Started OpenStack Nova Scheduler Server.

● openstack-nova-conductor.service - OpenStack Nova Conductor Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-conductor.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:48:50 CST; 10s ago
 Main PID: 7292 (nova-conductor)
   CGroup: /system.slice/openstack-nova-conductor.service
           ├─7292 /usr/bin/python2 /usr/bin/nova-conductor
           ├─7346 /usr/bin/python2 /usr/bin/nova-conductor
           └─7347 /usr/bin/python2 /usr/bin/nova-conductor

5月 19 00:48:44 controller systemd[1]: Starting OpenStack Nova Conductor Server...
5月 19 00:48:50 controller systemd[1]: Started OpenStack Nova Conductor Server.

● openstack-nova-novncproxy.service - OpenStack Nova NoVNC Proxy Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-novncproxy.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2020-05-19 00:48:44 CST; 16s ago
 Main PID: 7293 (nova-novncproxy)
   CGroup: /system.slice/openstack-nova-novncproxy.service
           └─7293 /usr/bin/python2 /usr/bin/nova-novncproxy --web /usr/share/novnc/</code></pre><p> <br /> <br><a name="J0dGK"></a></p><h1>【计算节点】</h1><p>官方文档：<span class="external-link"><a class="no-external-link" href="https://docs.openstack.org/nova/queens/install/compute-install-rdo.html#install-and-configure-components" target="_blank"><i data-feather="external-link"></i>https://docs.openstack.org/nova/queens/install/compute-install-rdo.html#install-and-configure-components</a></span><br><a name="9zeGw"></a></p><h2>安装包：openstack-nova-compute</h2><p><code>yum install openstack-nova-compute -y</code><br><a name="eXFGE"></a></p><h2>编辑/etc/nova/nova.conf配置文件</h2><p> <br /><code>vim /etc/nova/nova.conf</code></p><pre><code> [DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:openstack@controller
my_ip = 192.168.100.20
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
    
 [api]
auth_strategy = keystone

[glance]
api_servers = http://controller:9292

[keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = 000000

[placement]
os_region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = 000000
 
[oslo_concurrency]
lock_path = /var/lib/nova/tmp

[vnc]
enabled = True
server_listen = 0.0.0.0
server_proxyclient_address = $my_ip
novncproxy_base_url = http://controller:6080/vnc_auto.html

[libvirt] 
virt_type = qemu</code></pre><p><code>$ egrep -c '(vmx|svm)' /proc/cpuinfo  </code><br />返回0，不支持(通过这条命令能够看出底层硬件是否支持虚拟化技术)<br />    If this command returns a value of <code>one or greater</code>, your compute node supports hardware acceleration which typically requires no additional configuration.<br />    If this command returns a value of <code>zero</code>, your compute node does not support hardware acceleration and you must configure <code>libvirt</code> to use QEMU instead of KVM.（这里建议不管支不支持，我们都要将libvirt配置加上）</p><p><a name="3bO6H"></a></p><h2>手动打开虚拟机的虚拟化:</h2><p>先关机，然后设置如下图<br /><img src="https://cdn.nlark.com/yuque/0/2020/png/405775/1589822557549-ba12e62d-1dd6-47c2-9efa-d234467ec209.png#align=left&display=inline&height=297&originHeight=297&originWidth=373&size=0&status=done&style=none&width=373" alt="" title="" style=""><br /><img src="http://qiniu.justinwuwei.cn/20200519012150.png" alt="" title="" style=""><br />勾选虚拟化。<br><a name="jk4us"></a></p><h2>启动nova相关服务：</h2><pre><code>`systemctl start libvirtd.service openstack-nova-compute.service&amp;&amp;systemctl enable libvirtd.service openstack-nova-compute.service`</code></pre><p><a name="hKGYt"></a></p><h3>检查nova相关服务状态</h3><p><code>systemctl status libvirtd.service openstack-nova-compute.service</code></p><p><a name="YuzNW"></a></p><h3>检查nova关键组件</h3><p><code>openstack compute service list</code><br />返回：</p><pre><code>[root@controller ~]# openstack compute service list
+----+------------------+------------+----------+---------+-------+----------------------------+
| ID | Binary           | Host       | Zone     | Status  | State | Updated At                 |
+----+------------------+------------+----------+---------+-------+----------------------------+
|  1 | nova-scheduler   | controller | internal | enabled | up    | 2020-05-19T07:00:49.000000 |
|  2 | nova-consoleauth | controller | internal | enabled | up    | 2020-05-19T07:00:51.000000 |
|  3 | nova-conductor   | controller | internal | enabled | up    | 2020-05-19T07:00:49.000000 |
|  6 | nova-compute     | compute    | nova     | enabled | up    | 2020-05-19T07:00:57.000000 |
+----+------------------+------------+----------+---------+-------+----------------------------+</code></pre><p><a name="vOovZ"></a></p><h3>其他验证操作：</h3><pre><code>[https://docs.openstack.org/nova/queens/install/verify.html](https://docs.openstack.org/nova/queens/install/verify.html)</code></pre><p><a name="cL7CF"></a></p><h2>Add the compute node to the cell database</h2><p><a name="lQoyQ"></a></p><h3>检查compute节点服务列表</h3><p>Source the admin credentials to enable admin-only CLI commands, then confirm there are compute hosts in the database.</p><p><code>openstack compute service list --service nova-compute</code><br />返回：</p><pre><code>[root@controller ~]# openstack compute service list --service nova-compute
+----+--------------+---------+------+---------+-------+----------------------------+
| ID | Binary       | Host    | Zone | Status  | State | Updated At                 |
+----+--------------+---------+------+---------+-------+----------------------------+
|  6 | nova-compute | compute | nova | enabled | up    | 2020-05-19T06:46:06.000000 |
+----+--------------+---------+------+---------+-------+----------------------------+</code></pre><p><a name="3YCpd"></a></p><h3>发现后继创建节点</h3><p><code>su -s /bin/sh -c </code>`"nova-manage cell_v2 discover_hosts --verbose"<code>` nova</code></p><p>此外还可以设置定时查看有无新增节点<br />When you add new compute nodes, you must run <code>nova-manage cell_v2 discover_hosts</code> on the controller node to register those new compute nodes. Alternatively, you can set an appropriate interval in <code>/etc/nova/nova.conf</code>:</p><pre><code>[scheduler]
discover_hosts_in_cells_interval = 300</code></pre><pre><code>&lt;br /&gt; 
</code></pre>