openstack控制节点nova

Posted 2021-01-17 liuhui-xzz

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

nova的主要服务
API：负责接受和响应外部请求，支持openstack API,EC2API.
Cert:负责身份认证EC 2。
Scheduler:用于云主机调度。
Conductor:计算节点访问数据的中间件。
Consoleauth:用于控制台的授权验证。
Novncproxy:VNC代理。

mysql -uroot -p123123

创建数据库nova_cell0并授权
CREATE DATABASE nova_cell0;
GRANT ALL PRIVILEGES ON nova_cell0.* TO ‘nova‘@‘localhost‘ IDENTIFIED BY ‘nova‘;
GRANT ALL PRIVILEGES ON nova_cell0.* TO ‘nova‘@‘%‘ IDENTIFIED BY ‘nova‘;

创建novay用户
source /admin-openstack.sh

[[email protected] ~]# openstack user create --domain default --password-prompt nova
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | 5bbf1e37ef5e472e9c4cd495262b5f72 |
| name | nova |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+

把nova用户加入service的项目并授予admin的角色
openstack role add --project service --user nova admin

创建nova服务（不能创建多个）
openstack service create --name nova
--description "OpenStack Compute" compute

创建三个url
openstack endpoint create --region RegionOne
compute public http://192.168.2.11:8774/v2.1

openstack endpoint create --region RegionOne
compute internal http://192.168.2.11:8774/v2.1

openstack endpoint create --region RegionOne
compute admin http://192.168.2.11:8774/v2.1

创建placement用户
[[email protected] ~]# openstack user create --domain default --password-prompt placement
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | 97b2e35868f24c20af240937c74071b7 |
| name | placement |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+

把placement用户加入service的项目并授予admin的角色
openstack role add --project service --user placement admin

openstack endpoint create --region RegionOne
placement internal http://192.168.2.11:8778

openstack endpoint create --region RegionOne
placement admin http://192.168.2.11:8778

[[email protected] ~]# openstack endpoint create --region RegionOne
> placement admin http://192.168.2.11:8778

openstack endpoint list

安装服务
yum install openstack-nova-api openstack-nova-conductor
openstack-nova-console openstack-nova-novncproxy
openstack-nova-scheduler openstack-nova-placement-api

修改配置文件
vim /etc/nova/nova.conf
[DEFAULT]
# ...

#打开注释：
enabled_apis = osapi_compute,metadata

[api_database]
# ...
connection=mysql+pymysql://nova:[email protected]/nova_api

[database]
# ...
mysql+pymysql://nova:[email protected]/nova

[DEFAULT]
# ...
3130 transport_url=rabbit://openstack:[email protected]

[api]
# ...
#打开注释
auth_strategy = keystone

[keystone_authtoken]
auth_url = http://192.168.2.11:5000
auth_url = http://192.168.2.11:35357
memcached_servers = 192.168.2.11:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova

[DEFAULT]
# ...
use_neutron = true
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[vnc]
enabled = true
vncserver_listen=192.168.2.11
server_proxyclient_address =192.168.2.11

[glance]
# ...
api_servers=http://192.168.2.11:9292

[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://192.168.2.11:5000/v3
username = placement
password = placement

vim /etc/httpd/conf.d/00-nova-placement-api.conf
#添加
<Directory /usr/bin>
<IfVersion >= 2.4>
Require all granted
</IfVersion>
<IfVersion < 2.4>
Order allow,deny
Allow from all
</IfVersion>
</Directory>

重启httpd
systemctl restart httpd

同步api数据库
su -s /bin/sh -c "nova-manage api_db sync" nova

同步cell0数据库
u -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova

创建cell1
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nova cell0和cell1是否正确注册：
su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova

[[email protected] ~]# su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
+-------+--------------------------------------+--------------------------------------+---------------------------------------------------+
| Name | UUID | Transport URL | Database Connection |
+-------+--------------------------------------+--------------------------------------+---------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 | none:/ | mysql+pymysql://nova:****@192.168.2.11/nova_cell0 |
| cell1 | a3cec692-4976-46b6-8260-d61e383f7737 | rabbit://openstack:****@192.168.2.11 | mysql+pymysql://nova:****@192.168.2.11/nova |
+-------+--------------------------------------+--------------------------------------+---------------------------------------------------+

启动Compute服务并将其配置为在系统引导时启动：
systemctl enable openstack-nova-api.service
openstack-nova-scheduler.service openstack-nova-conductor.service
openstack-nova-novncproxy.service

systemctl start openstack-nova-api.service
openstack-nova-scheduler.service openstack-nova-conductor.service
openstack-nova-novncproxy.service

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