OpenStack控制节点nova服务安装部署

介绍

Nova是OpenStack计算的弹性控制器。OpenStack云实例生命期所需的各种动作都将由Nova进行处理和支撑，这就意味着Nova以管理平台的身份登场，负责管理整个云的计算资源、网络、授权及测度。虽然Nova本身并不提供任何虚拟能力，但是它将使用libvirt API与虚拟机的宿主机进行交互。Nova通过Web服务API来对外提供处理接口，而且这些接口与Amazon的Web服务接口是兼容的。

创建数据库

使用root用户登录

sudo mysql

创建nova、nova-api和nova_cell0数据库

CREATE DATABASE nova_api;
CREATE DATABASE nova;
CREATE DATABASE nova_cell0;

创建nova、nova-api和nova_cell0数据库用户并授予权限

GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';

替换NOVA_DBPASS为你自己的密码

创建服务凭证

输入管理员凭证

. admin-openrc

创建openstack的nova用户

openstack user create --domain default --password-prompt nova
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 8a7dbf5279404537b1c7b86c033620fe |
| name                | nova                             |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

添加admin角色到nova用户和service工程中

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

创建nova服务

openstack service create --name nova \
--description "OpenStack Compute" compute
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute                |
| enabled     | True                             |
| id          | 060d59eac51b4594815603d75a00aba2 |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+

创建nova服务的API端口

openstack endpoint create --region RegionOne \
compute public http://controller:8774/v2.1

+--------------+-------------------------------------------+
| Field        | Value                                     |
+--------------+-------------------------------------------+
| enabled      | True                                      |
| id           | 3c1caa473bfe4390a11e7177894bcc7b          |
| interface    | public                                    |
| region       | RegionOne                                 |
| region_id    | RegionOne                                 |
| service_id   | 060d59eac51b4594815603d75a00aba2          |
| service_name | nova                                      |
| service_type | compute                                   |
| url          | http://controller:8774/v2.1               |
+--------------+-------------------------------------------+

openstack endpoint create --region RegionOne \
compute internal http://controller:8774/v2.1

+--------------+-------------------------------------------+
| Field        | Value                                     |
+--------------+-------------------------------------------+
| enabled      | True                                      |
| id           | e3c918de680746a586eac1f2d9bc10ab          |
| interface    | internal                                  |
| region       | RegionOne                                 |
| region_id    | RegionOne                                 |
| service_id   | 060d59eac51b4594815603d75a00aba2          |
| service_name | nova                                      |
| service_type | compute                                   |
| url          | http://controller:8774/v2.1               |
+--------------+-------------------------------------------+
openstack endpoint create --region RegionOne \
compute admin http://controller:8774/v2.1
+--------------+-------------------------------------------+
| Field        | Value                                     |
+--------------+-------------------------------------------+
| enabled      | True                                      |
| id           | 38f7af91666a47cfb97b4dc790b94424          |
| interface    | admin                                     |
| region       | RegionOne                                 |
| region_id    | RegionOne                                 |
| service_id   | 060d59eac51b4594815603d75a00aba2          |
| service_name | nova                                      |
| service_type | compute                                   |
| url          | http://controller:8774/v2.1               |
+--------------+-------------------------------------------+

创建placement服务

创建openstack的placement用户

openstack user create --domain default --password-prompt placement

User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | fa742015a6494a949f67629884fc7ec8 |
| name                | placement                        |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

添加admin角色到service项目、placement用户

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

创建Placement服务

openstack service create --name placement --description "Placement API" placement

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | Placement API                    |
| enabled     | True                             |
| id          | 2d1a27022e6e4185b86adac4444c495f |
| name        | placement                        |
| type        | placement                        |
+-------------+----------------------------------+

创建Placement服务API地址

openstack endpoint create --region RegionOne placement public http://controller:8778

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 2b1b2637908b4137a9c2e0470487cbc0 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 2d1a27022e6e4185b86adac4444c495f |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+

openstack endpoint create --region RegionOne placement internal http://controller:8778

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 02bcda9a150a4bd7993ff4879df971ab |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 2d1a27022e6e4185b86adac4444c495f |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+

openstack endpoint create --region RegionOne placement admin http://controller:8778

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 3d71177b9e0f406f98cbff198d74b182 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 2d1a27022e6e4185b86adac4444c495f |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://controller:8778           |
+--------------+----------------------------------+

安装和配置组件

安装

apt install nova-api nova-conductor nova-consoleauth \
nova-novncproxy nova-scheduler nova-placement-api

修改/etc/nova/nova.conf文件

修改连接数据库配置

[api_database]
connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova_api

[database]
connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova

替换NOVA_DBPASS为你自己的密码

修改连接消息队列rabbitmq配置

[DEFAULT]
transport_url = rabbit://openstack:RABBIT_PASS@controller

替换RABBIT_PASS为你自己的密码

修改api和认证配置

[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

替换NOVA_PASS为你自己的密码,注释或者删除其他[keystone_authtoken]部分

修改管理网络接口的ip地址

[DEFAULT]
my_ip = 10.0.0.11

启动对网路服务的支持

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

修改vnc配置，vnc代理使用管理网络的ip地址

[vnc]
enabled = true
vncserver_listen = $my_ip
vncserver_proxyclient_address = $my_ip

配置镜像服务的地址

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

修改lock path

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

修改placement服务的相关配置

[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

替换PLACEMENT_PASS为自己的密码

填充数据库

填充nova-api数据库

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

填充cell0数据库

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

填充cell1数据库

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

填充nova数据库

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

验证nova cell0 和 cell1是否注册成功

nova-manage cell_v2 list_cells

+-------+--------------------------------------+
| Name  | UUID                                 |
+-------+--------------------------------------+
| cell1 | 109e1d4b-536a-40d0-83c6-5f121b82b650 |
| cell0 | 00000000-0000-0000-0000-000000000000 |
+-------+--------------------------------------+

完成安装并重启服务

sudo service nova-api restart
sudo service nova-consoleauth restart
sudo service nova-scheduler restart
sduo service nova-conductor restart
sudo service nova-novncproxy restart