openstack控制节点nova

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 (加载环境变量)

[root@localhost ~]# 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
[root@localhost ~]# 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

创建placement服务

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

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

[root@localhost ~]# 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：（2753行）
enabled_apis = osapi_compute,metadata

[api_database]

# 打开注释并修改（3479行）...
connection=mysql+pymysql://nova:nova@192.168.2.11/nova_api

[database]
# ...打开注释并修改（4453行）
mysql+pymysql://nova:nova@192.168.2.11/nova

[DEFAULT]

# ...打开注释并修改（3130行）
transport_url=rabbit://openstack:openstack@192.168.2.11

[api]
# ...
#打开注释（3193行）
auth_strategy = keystone

[keystone_authtoken]

#添加内容（5772行）
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]
# ...打开注释（1817行）
use_neutron = true

#打开注释并修改（2479行）
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[vnc]

#打开注释（9897行）
enabled = true

#打开注释并修改（9919行）
vncserver_listen=192.168.2.11

#打开注释并修改（9930行）
server_proxyclient_address =192.168.2.11

[glance]
# ...打开注释并修改（5067行）
api_servers=http://192.168.2.11:9292

[oslo_concurrency]
# ...打开注释（7489行）
lock_path = /var/lib/nova/tmp

[placement]

#添加内容（8305行）
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（从15行后开始添加）
<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
su -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

31af83ec-e1e6-4dc8-93f9-130b61efbd0a

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：nova-manage cell_v2 list_cells

[root@linux-node-1 ~]# nova-manage cell_v2 list_cells
+-------+--------------------------------------+--------------------------------------+---------------------------------------------------+
| Name | UUID | Transport URL | Database Connection |
+-------+--------------------------------------+--------------------------------------+---------------------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 | none:/ | mysql+pymysql://nova:****@192.168.2.11/nova_cell0 |
| cell1 | 31af83ec-e1e6-4dc8-93f9-130b61efbd0a | 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