4. 安装nova（控制节点）— OpenStack Queens 三节点部署

本操作在控制节点上完成

添加nova用户

添加用户nova和placement

root@controller ~(keystone)# openstack user create --domain default --project service --password root nova
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | 2fae0cd7579441f88cab61f4291bfd17 |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 4e97f0b2c83a4947bec7b83e5726f6b8 |
| name                | nova                             |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

root@controller ~(keystone)# openstack user create --domain default --project service --password root placement
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | 2fae0cd7579441f88cab61f4291bfd17 |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 11897fb5b4ee4242aa8aecbc9d5507bd |
| name                | placement                        |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

为两个用户添加管理员角色

root@controller ~(keystone)# openstack role add --project service --user nova admin
root@controller ~(keystone)# openstack role add --project service --user placement admin

创建服务

root@controller ~(keystone)# openstack service create --name nova --description "OpenStack Compute service" compute
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute service        |
| enabled     | True                             |
| id          | bffc78fabb9641828ab821a2256c932e |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+
root@controller ~(keystone)# openstack service create --name placement --description "OpenStack Compute Placement service" placement
+-------------+-------------------------------------+
| Field       | Value                               |
+-------------+-------------------------------------+
| description | OpenStack Compute Placement service |
| enabled     | True                                |
| id          | ec08895d9c8a4b80a5114f57154671c2    |
| name        | placement                           |
| type        | placement                           |
+-------------+-------------------------------------+

创建nova服务endpoint（public,internal,admin）

root@controller ~(keystone)# openstack endpoint create --region RegionOne compute public http://10.0.0.7:8774/v2.1/%(tenant_id)s
+--------------+-----------------------------------------+
| Field        | Value                                   |
+--------------+-----------------------------------------+
| enabled      | True                                    |
| id           | fbdae26e0ef2468a9165a980a8dddde1        |
| interface    | public                                  |
| region       | RegionOne                               |
| region_id    | RegionOne                               |
| service_id   | bffc78fabb9641828ab821a2256c932e        |
| service_name | nova                                    |
| service_type | compute                                 |
| url          | http://10.0.0.7:8774/v2.1/%(tenant_id)s |
+--------------+-----------------------------------------+
root@controller ~(keystone)# openstack endpoint create --region RegionOne compute internal http://10.0.0.7:8774/v2.1/%(tenant_id)s
+--------------+-----------------------------------------+
| Field        | Value                                   |
+--------------+-----------------------------------------+
| enabled      | True                                    |
| id           | 8ef3ad37c8a642dfb97d07b37281a4bb        |
| interface    | internal                                |
| region       | RegionOne                               |
| region_id    | RegionOne                               |
| service_id   | bffc78fabb9641828ab821a2256c932e        |
| service_name | nova                                    |
| service_type | compute                                 |
| url          | http://10.0.0.7:8774/v2.1/%(tenant_id)s |
+--------------+-----------------------------------------+
root@controller ~(keystone)# openstack endpoint create --region RegionOne compute admin http://10.0.0.7:8774/v2.1/%(tenant_id)s
+--------------+-----------------------------------------+
| Field        | Value                                   |
+--------------+-----------------------------------------+
| enabled      | True                                    |
| id           | 616b11ee723c4715896e079801cb3d7f        |
| interface    | admin                                   |
| region       | RegionOne                               |
| region_id    | RegionOne                               |
| service_id   | bffc78fabb9641828ab821a2256c932e        |
| service_name | nova                                    |
| service_type | compute                                 |
| url          | http://10.0.0.7:8774/v2.1/%(tenant_id)s |
+--------------+-----------------------------------------+

root@controller ~(keystone)# openstack endpoint create --region RegionOne placement public http://10.0.0.7:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 5da1ee43641648c6a161ed39ffe2e84f |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ec08895d9c8a4b80a5114f57154671c2 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://10.0.0.7:8778             |
+--------------+----------------------------------+
root@controller ~(keystone)# openstack endpoint create --region RegionOne placement internal http://10.0.0.7:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 453f73d5a241472f89764084166afe4f |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ec08895d9c8a4b80a5114f57154671c2 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://10.0.0.7:8778             |
+--------------+----------------------------------+
root@controller ~(keystone)# openstack endpoint create --region RegionOne placement admin http://10.0.0.7:8778
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 03d6697290344054a0abb3b338544ffe |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | ec08895d9c8a4b80a5114f57154671c2 |
| service_name | placement                        |
| service_type | placement                        |
| url          | http://10.0.0.7:8778             |
+--------------+----------------------------------+

为nova添加数据库

root@controller ~(keystone)# mysql
Welcome to the MariaDB monitor.  Commands end with ; or g.
Your MariaDB connection id is 78
Server version: 10.0.38-MariaDB-0ubuntu0.16.04.1 Ubuntu 16.04

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

MariaDB [(none)]> create database nova;
Query OK, 1 row affected (0.00 sec)

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

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

MariaDB [(none)]> create database nova_api;
Query OK, 1 row affected (0.00 sec)

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

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

MariaDB [(none)]> create database nova_placement;
Query OK, 1 row affected (0.00 sec)

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

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

MariaDB [(none)]> create database nova_cell0;
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> grant all privileges on nova_cell0.* to nova@'localhost' identified by 'root';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> grant all privileges on nova_cell0.* to nova@'%' identified by'root';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit
Bye

安装配置nova

安装nova服务软件包

root@controller ~(keystone)# apt -y install nova-api nova-placement-api nova-conductor nova-consoleauth nova-scheduler nova-novncproxy python-novaclient

配置nova，由于官方配置文件修改较为麻烦，这里直接创建一个新的配置文件

root@controller ~(keystone)# mv /etc/nova/nova.conf /etc/nova/nova.conf.org
root@controller ~(keystone)# vi /etc/nova/nova.conf

# 添加以下内容，保存退出
[DEFAULT]
# 设置控制节点IP
my_ip = 10.0.0.7
state_path = /var/lib/nova
enabled_apis = osapi_compute,metadata
log_dir = /var/log/nova
transport_url = rabbit://openstack:root@controller

[api]
auth_strategy = keystone

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

[oslo_concurrency]
lock_path = $state_path/tmp

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

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

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

[placement]
auth_url = http://controller:5000
os_region_name = RegionOne
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = placement
password = root

[placement_database]
connection = mysql+pymysql://nova:root@controller/nova_placement

[wsgi]
api_paste_config = /etc/nova/api-paste.ini

因为配置文件是新建的，这里把权限加回去

root@controller ~(keystone)# chmod 640 /etc/nova/nova.conf
root@controller ~(keystone)# chgrp nova /etc/nova/nova.conf

初始化数据库

可能耗时比较长

root@controller:~(keystone)# su -s /bin/bash nova -c "nova-manage api_db sync"
root@controller:~(keystone)# su -s /bin/bash nova -c "nova-manage cell_v2 map_cell0"
root@controller:~(keystone)# su -s /bin/bash nova -c "nova-manage db sync"
root@controller:~(keystone)# su -s /bin/bash nova -c "nova-manage cell_v2 create_cell --name cell1"

重启apache2服务

root@controller ~(keystone)# systemctl restart apache2

重启nova相关服务

root@controller ~(keystone)# systemctl restart nova-api
root@controller ~(keystone)# systemctl restart nova-conductor
root@controller ~(keystone)# systemctl restart nova-scheduler
root@controller ~(keystone)# systemctl restart nova-consoleauth
root@controller ~(keystone)# systemctl restart nova-novncproxy

查看nova服务状态

root@controller ~(keystone)# openstack compute service list
+----+------------------+------------+----------+---------+-------+----------------------------+
| ID | Binary           | Host       | Zone     | Status  | State | Updated At                 |
+----+------------------+------------+----------+---------+-------+----------------------------+
|  3 | nova-conductor   | controller | internal | enabled | up    | 2020-04-26T06:57:15.000000 |
|  4 | nova-scheduler   | controller | internal | enabled | up    | 2020-04-26T06:57:16.000000 |
|  5 | nova-consoleauth | controller | internal | enabled | up    | 2020-04-26T06:57:13.000000 |
+----+------------------+------------+----------+---------+-------+----------------------------+

参考

• Server World
• DennisCai's blog