第四章-计算节点Nova

API：负责接收响应外部请求。支持OpenstackAPI，Ec2 API。

Cert：负责身份认证EC2.

Scheduler：用于云主机调度

Conductor：计算节点访问数据中的中间件

Consoleauth：用于控制台的授权验证

Novncproxy：VNC代理

安装并配置控制节点

第一步创建数据库

MariaDB [(none)]> drop database nova;
Query OK, 110 rows affected (0.85 sec)

MariaDB [(none)]> drop database nova_api;
Query OK, 32 rows affected (0.20 sec)

MariaDB [(none)]> drop database nova_cell0;
Query OK, 110 rows affected (0.82 sec)

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)]> grant all on nova_cell0.* to 'nova'@'192.168.10.%' identified by 'nova';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> grant all on nova_api.* to 'nova'@'192.168.10.%' identified by 'nova';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> grant all on nova.* to 'nova'@'192.168.10.%' identified by 'nova';
Query OK, 0 rows affected (0.00 sec)

第二步创建nova用户并授权

openstack user create --domain default --password-prompt nova
openstack role add --project service --user nova admin

创建 nova 服务实体：

[root@openstack-1 ~]#  openstack service create --name nova \
>   --description "OpenStack Compute" compute
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute                |
| enabled     | True                             |
| id          | 817ffd34ea6f43f499ba8501a7a66c50 |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+

创建 Compute 服务 API 端点 ：

[root@openstack-1 ~]#  openstack endpoint create --region RegionOne \
>   compute public http://192.168.10.131:8774/v2.1/%\(tenant_id\)s
+--------------+-----------------------------------------------+
| Field        | Value                                         |
+--------------+-----------------------------------------------+
| enabled      | True                                          |
| id           | 382ea0ba6a5e46608f2919f9117c952a              |
| interface    | public                                        |
| region       | RegionOne                                     |
| region_id    | RegionOne                                     |
| service_id   | 817ffd34ea6f43f499ba8501a7a66c50              |
| service_name | nova                                          |
| service_type | compute                                       |
| url          | http://192.168.10.131:8774/v2.1/%(tenant_id)s |
+--------------+-----------------------------------------------+
[root@openstack-1 ~]# openstack endpoint create --region RegionOne \
>   compute internal http://192.168.10.131:8774/v2.1/%\(tenant_id\)s
+--------------+-----------------------------------------------+
| Field        | Value                                         |
+--------------+-----------------------------------------------+
| enabled      | True                                          |
| id           | 8584261f5912452bbc037a66e63dc418              |
| interface    | internal                                      |
| region       | RegionOne                                     |
| region_id    | RegionOne                                     |
| service_id   | 817ffd34ea6f43f499ba8501a7a66c50              |
| service_name | nova                                          |
| service_type | compute                                       |
| url          | http://192.168.10.131:8774/v2.1/%(tenant_id)s |
+--------------+-----------------------------------------------+
[root@openstack-1 ~]# openstack endpoint create --region RegionOne \
>   compute admin http://192.168.10.131:8774/v2.1/%\(tenant_id\)s
+--------------+-----------------------------------------------+
| Field        | Value                                         |
+--------------+-----------------------------------------------+
| enabled      | True                                          |
| id           | 37a982819304468687190124db3e0efc              |
| interface    | admin                                         |
| region       | RegionOne                                     |
| region_id    | RegionOne                                     |
| service_id   | 817ffd34ea6f43f499ba8501a7a66c50              |
| service_name | nova                                          |
| service_type | compute                                       |
| url          | http://192.168.10.131:8774/v2.1/%(tenant_id)s |
+--------------+-----------------------------------------------+

第三部创建定位服务用户placement

openstack user create --domain default --password-prompt placement
openstack role add --project service --user placement admin

创建placement端点：

[root@openstack-1 ~]#  openstack endpoint create --region RegionOne placement public http://192.168.10.131:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 1bb1d98d343b47a9b9d9408ae2fe53c4 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 062c05e029d6483798ad9cbc24d21414 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://192.168.10.131:8778       |
+--------------+----------------------------------+
[root@openstack-1 ~]# openstack endpoint create --region RegionOne placement internal http://192.168.10.131:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | c07d4d73b09b4aaea05f51b64779836d |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 062c05e029d6483798ad9cbc24d21414 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://192.168.10.131:8778       |
+--------------+----------------------------------+
[root@openstack-1 ~]# openstack endpoint create --region RegionOne placement admin http://192.168.10.131:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 2c94168078e349acbb260814bdce39a9 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 062c05e029d6483798ad9cbc24d21414 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://192.168.10.131:8778       |
+--------------+----------------------------------+

 

安装软件包：

[root@openstack-1 ~]# yum install openstack-nova-api openstack-nova-conductor   openstack-nova-console openstack-nova-novncproxy   openstack-nova-scheduler

编辑``/etc/nova/nova.conf``文件并完成下面的操作：

  • 在``[DEFAULT]``部分，只启用计算和元数据API：

[DEFAULT]
enabled_apis = osapi_compute,metadata

在``[api_database]``和``[database]``部分，配置数据库的连接：

[api_database]
connection=mysql+pymysql://nova:nova@192.168.10.172/nova_api
[database]
connection=mysql+pymysql://nova:nova@192.168.10.172/nova

在 “[DEFAULT]” ，配置 “RabbitMQ” 消息队列访问：

transport_url = rabbit://openstack:openstack@192.168.10.131

在 “[DEFAULT]” 和 “[keystone_authtoken]” 部分，配置认证服务访问：

[DEFAULT]
auth_strategy = keystone

[keystone_authtoken]
auth_uri = http://192.168.10.131:5000
auth_url = http://192.168.10.131:35357
memcached_servers = 192.168.10.131:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova
###################################
[api]
# ...
auth_strategy = 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 = NOVA_PASS

在 [DEFAULT] 部分，使能 Networking 服务：

[DEFAULT]
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver

在``[vnc]``部分，配置VNC代理使用控制节点的管理接口IP地址 ：

enabled = true

server_listen=0.0.0.0
server_proxyclient_address=192.168.10.131

在 [glance] 区域，配置镜像服务 API 的位置：

api_servers=http://192.168.10.131:9292

在 [oslo_concurrency] 部分，配置锁路径：

[oslo_concurrency]
lock_path = /var/lib/nova/tmp

In the [placement] section, configure the Placement API:

[placement]
os_region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://192.168.10.131:5000/v3
username = placement
password = placement
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>
 systemctl restart httpd

同步Compute 数据库：



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


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


# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
109e1d4b-536a-40d0-83c6-5f121b82b650


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




完成安装


启动 Compute 服务并将其设置为随系统启动：




[root@openstack-1 ~]#  systemctl enable openstack-nova-api.service   openstack-nova-consoleauth.service openstack-nova-scheduler.service   openstack-nova-conductor.service openstack-nova-novncproxy.service
[root@openstack-1 ~]# systemctl start openstack-nova-api.service   openstack-nova-consoleauth.service openstack-nova-scheduler.service   openstack-nova-conductor.service openstack-nova-novncproxy.service
[root@openstack-1 ~]# systemctl status openstack-nova-api.service   openstack-nova-consoleauth.serv
ice openstack-nova-scheduler.service   openstack-nova-conductor.service openstack-nova-novncproxy.service




验证




[root@openstack-1 ~]# nova-manage cell_v2 list_cells
/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
  exception.NotSupportedWarning
+-------+--------------------------------------+----------------------------------------+-----------------------------------------------------+
|  名称 |                 UUID                 |             Transport URL              |                      数据库连接                     |
+-------+--------------------------------------+----------------------------------------+-----------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 |                 none:/                 | mysql+pymysql://nova:****@2/nova_cell0 |
| cell1 | d9d9cd50-7602-40d1-bd50-293daf488524 | rabbit://openstack:****@     |
+-------+--------------------------------------+----------------------------------------+-----------------------------------------------------+
[root@openstack-1 ~]# openstack host list
+-------------+-------------+----------+
| Host Name   | Service     | Zone     |
+-------------+-------------+----------+
| openstack-1 | consoleauth | internal |
| openstack-1 | conductor   | internal |
| openstack-1 | scheduler   | internal |
+-------------+-------------+----------+




 







            

            
posted @ 
2018-09-11 17:14 
闫世成 
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