6 Openstack-Ussuri-Nova控制节点部署-ubuntu1804

Nova具体功能如下：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API5 异步的一致性通信6 Hypervisor透明：支持Xen,XenServer/XCP, KVM, UML, VMware vSphere and Hyper-V6.1 配置Nova数据库#使用root登陆数据库：mysql -u root -p#创建nova数据库:CREATE DATABASE

KKCai_

1367人浏览 · 2020-05-20 14:41:34

KKCai_ · 2020-05-20 14:41:34 发布

Nova具体功能如下：
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

6.1 配置Nova数据库

#使用root登陆数据库：

mysql -u root -p

#创建nova数据库:

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

#授予对nova数据库的访问权限，刷新退出数据库:

GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'nova.123';
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
  IDENTIFIED BY 'nova.123';

GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'nova.123';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
  IDENTIFIED BY 'nova.123';

GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'nova.123';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
  IDENTIFIED BY 'nova.123';
flush privileges;
exit

6.2 加载管理凭证

source adminrc.sh

6.3 创建nova相关服务凭证

#创建nova服务用户，并设置密码为nova.123

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

#输出

User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 2d59698e65e548f698515ffdda60a8bd |
| name                | nova                             |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

#赋予nova服务用户服务管理员权限及角色，无输出

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

#创建nova服务

openstack service create --name nova --description "OpenStack Compute" compute

#输出

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute                |
| enabled     | True                             |
| id          | fc0fb7e04b4443cd95be23d91bd0fc51 |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+

6.4 创建compute API endpoints

#public

openstack endpoint create --region RegionOne compute public http://controller160:8774/v2.1

#输出

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 150302175a7e4c1a972fe47ce020aca7 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | fc0fb7e04b4443cd95be23d91bd0fc51 |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller160:8774/v2.1      |
+--------------+----------------------------------+

#internal

openstack endpoint create --region RegionOne compute internal http://controller160:8774/v2.1

#输出

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | d2f28b8140d9494e941c29128282b7e0 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | fc0fb7e04b4443cd95be23d91bd0fc51 |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller160:8774/v2.1      |
+--------------+----------------------------------+

#admin

openstack endpoint create --region RegionOne compute admin http://controller160:8774/v2.1

#输出

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 8bafe5ce2058461bae0afa04014348fb |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | fc0fb7e04b4443cd95be23d91bd0fc51 |
| service_name | nova                             |
| service_type | compute                          |
| url          | http://controller160:8774/v2.1      |
+--------------+----------------------------------+

6.5 部署与配置nova

#安装包

apt install nova-api nova-conductor nova-novncproxy nova-scheduler -y

#备份nova配置

cp /etc/nova/nova.conf /etc/nova/nova.conf.bak
egrep -v "^$|^#" /etc/nova/nova.conf.bak >/etc/nova/nova.conf

#配置nova配置文件，在对应项底下增加以下字段
#vim /etc/nova/nova.conf


[DEFAULT]
# ...
my_ip = 172.16.1.160
transport_url = rabbit://rabbitmq:rabbitmq.123@controller160:5672/

[api_database]
# ...
connection = mysql+pymysql://nova:nova.123@controller160/nova_api

[database]
# ...
connection = mysql+pymysql://nova:nova.123@controller160/nova

[api]
# ...
auth_strategy = keystone

[keystone_authtoken]
# ...
www_authenticate_uri = http://controller160:5000
auth_url = http://controller160:5000
memcached_servers = controller160:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = nova
password = nova.123

[vnc]
enabled = true
# ...
server_listen = $my_ip
server_proxyclient_address = $my_ip

[glance]
# ...
api_servers = http://controller160:9292

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

[placement]
# ...
region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller160:5000/v3
username = placement
password = placement.123

#填充nova-api数据库，无输出

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

#填充cell0数据库，无输出

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

#创建cell1表

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

#输出，可忽略warning

--transport-url not provided in the command line, using the value [DEFAULT]/transport_url from the configuration file
--database_connection not provided in the command line, using the value [database]/connection from the configuration file
ec2bd311-33de-4c9f-ae88-6d351c8abbb2

#填充nova数据库

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

#输出，可忽略

/usr/lib/python3/dist-packages/pymysql/cursors.py:165: Warning: (1831, 'Duplicate index `block_device_mapping_instance_uuid_virtual_name_device_name_idx`. This is deprecated and will be disallowed in a future release.')
  result = self._query(query)
/usr/lib/python3/dist-packages/pymysql/cursors.py:165: Warning: (1831, 'Duplicate index `uniq_instances0uuid`. This is deprecated and will be disallowed in a future release.')
  result = self._query(query)

#验证nova的cell0及cell1是否已成功创建

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

#输出

+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+
|  Name |                 UUID                 |                Transport URL                |                Database Connection              | Disabled |
+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 |                    none:/                   | mysql+pymysql://nova:****@controller160/nova_cell0 |  False   |
| cell1 | ec2bd311-33de-4c9f-ae88-6d351c8abbb2 | rabbit://openstack:****@controller160:5672/ |    mysql+pymysql://nova:****@controller160/nova    |  False   |
+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+

#验证nova数据库是否正常写入：

mysql -h controller160 -unova -pnova.123 -e "use nova;show tables;"

#重启nova服务，并配置开机启动:

systemctl enable nova-api nova-scheduler nova-conductor nova-novncproxy
systemctl restart nova-api nova-scheduler nova-conductor nova-novncproxy
systemctl status nova-api nova-scheduler nova-conductor nova-novncproxy

6.6 nova服务验证

#加载管理凭证

source adminrc.sh

#执行状态检查，都为success为正常

nova-status upgrade check

#输出

+--------------------------------------------------------------------+
| Upgrade Check Results                                              |
+--------------------------------------------------------------------+
| Check: Cells v2                                                    |
| Result: Success                                                    |
| Details: No host mappings or compute nodes were found. Remember to |
|   run command 'nova-manage cell_v2 discover_hosts' when new        |
|   compute hosts are deployed.                                      |
+--------------------------------------------------------------------+
| Check: Placement API                                               |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
| Check: Ironic Flavor Migration                                     |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
| Check: Cinder API                                                  |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+

至此，nova服务已部署完毕，如有问题请联系我改正，感激不尽！

6.x 部署过程遇到的问题汇总

eg1.root@controller160:~# apt install nova-api nova-conductor nova-novncproxy nova-scheduler
The following packages have unmet dependencies:  
nova-api : Depends: python3-nova (= 2:21.0.0~b3~git2020041013.57ff308d6d-0ubuntu2~cloud0) but it is not going to be installed 
E: Unable to correct problems, you have held broken packages.
解决方案：
1 查看apt源是否设置正确
2 apt-get update
3 apt-get dist-upgrade
4 apt-get -f 命令（修复受损软件包）

eg2.ERROR oslo_service.service amqp.exceptions.AccessRefused: (0, 0): (403) ACCESS_REFUSED - Login was refused using authentication mechanism AMQPLAIN. For details see the broker logfile.
解决方案：
1 查看nova配置里的rabbitmq配置是否正常
2 查看rabbitmq是否有创建对应的用户及权限
3 如果是账号错误需要操作如下：
root@controller160:/etc/apt# su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+
|  Name |                 UUID                 |                Transport URL                |                Database Connection                 | Disabled |
+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 |                    none:/                   | mysql+pymysql://nova:****@controller160/nova_cell0 |  False   |
| cell1 | a3527e1f-85dc-46a6-bd17-af5f19b3a725 | rabbit://openstack:****@controller160:5672/ |    mysql+pymysql://nova:****@controller160/nova    |  False   |
+-------+--------------------------------------+---------------------------------------------+----------------------------------------------------+----------+
#停止服务
root@controller160:/etc/apt# systemctl stop nova-api nova-scheduler nova-conductor nova-novncproxy
#修改nova.conf配置里的rabbitmq_url为正确的账号
#删除使用错误账户的cell
root@controller160:/etc/apt# su -s /bin/sh -c "nova-manage cell_v2 delete_cell --cell_uuid a3527e1f-85dc-46a6-bd17-af5f19b3a725" nova
#重新创建cell1
root@controller160:/etc/apt# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
--transport-url not provided in the command line, using the value [DEFAULT]/transport_url from the configuration file
--database_connection not provided in the command line, using the value [database]/connection from the configuration file
74d4b65d-4d9c-4699-885e-4a773e295ef8
#验证是否正解
root@controller160:/etc/apt# su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
+-------+--------------------------------------+--------------------------------------------+----------------------------------------------------+----------+
|  Name |                 UUID                 |               Transport URL                |                Database Connection                 | Disabled |
+-------+--------------------------------------+--------------------------------------------+----------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 |                   none:/                   | mysql+pymysql://nova:****@controller160/nova_cell0 |  False   |
| cell1 | 74d4b65d-4d9c-4699-885e-4a773e295ef8 | rabbit://rabbitmq:****@controller160:5672/ |    mysql+pymysql://nova:****@controller160/nova    |  False   |
+-------+--------------------------------------+--------------------------------------------+----------------------------------------------------+----------+
#重新启动服务
systemctl start nova-api nova-scheduler nova-conductor nova-novncproxy
#查看对应日志是否还有报错

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