（1）在mariadb上为nova控制节点创建管理数据库并授权
mysql -u root -p
CREATE DATABASE nova;CREATE DATABASE nova_api;
CREATE DATABASE nova_cell0;
CREATE DATABASE nova_placement;
进入数据库后，执行：
flush privileges;
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_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_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova_placement.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova_placement.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS';
用合适的密码替换NOVA_DBPASS.
（2）获取admin用户的环境变量
source ~/admin-openrc
（3）在keystone上创建nova服务
1）创建nova用户
[root@controller1 ~]# openstack user create --domain default --password-prompt nova
User Password:123456
2）添加用户角色，给nova用户添加admin权限
[root@controller1 ~]#openstack role add --project service --user nova admin
说明:此条命令执行成功后不返回参数
3）创建名称为nova的计算服务
[root@controller1 ~]# openstack service create --name nova --description "OpenStack Compute" compute
4）创建计算服务三个nova API服务端点public,internal,admin
1.public API端点
[root@controller1 ~]# openstack endpoint create --region RegionOne compute public http://172.16.70.206:8774/v2.1
2.internal API端点
[root@controller1 ~]# openstack endpoint create --region RegionOne compute internal http://172.16.70.206:8774/v2.1
3.admin API端点
[root@controller1 ~]# openstack endpoint create --region RegionOne compute admin http://172.16.70.206:8774/v2.1
（4）在keystone上创建placement服务
1）创建placement服务用户
[root@controller1 ~]# openstack user create --domain default --password-prompt placement
User Password:123456
2）添加用户角色，给placement用户添加admin权限
[root@controller1 ~]#openstack role add --project service --user placement admin
说明:此条命令执行成功后不返回参数
3）创建Placement API服务
[root@controller1 ~]# openstack service create --name placement --description "Placement API" placement
4）创建三个Placement API服务端点public,internal,admin
1.public API端点
[root@controller1 ~]# openstack endpoint create --region RegionOne placement public http://172.16.70.206:8778
2.internal API端点
[root@controller1 ~]# openstack endpoint create --region RegionOne placement internal http://172.16.70.206:8778
3.admin API端点
[root@controller1 ~]# openstack endpoint create --region RegionOne placement admin http://172.16.70.206:8778
（4）在nova1服务器上安装并配置nova
1）安装nova控制节点相关组件
yum -y install openstack-nova-api
yum -y install openstack-nova-conductor
yum -y install openstack-nova-console
yum -y install openstack-nova-novncproxy
yum -y install openstack-nova-scheduler
yum -y install openstack-nova-placement-api
2）编辑/etc/nova/nova.conf参数
[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:[email protected]:5672
my_ip = 0.0.0.0 #172.16.70.206
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
[api_database]
connection = mysql+pymysql://nova:[email protected]/nova_api
[database]
connection = mysql+pymysql://nova:[email protected]/nova
[api]
auth_strategy = keystone
[keystone_authtoken]
auth_uri = http://172.16.70.201:5000
auth_url = http://172.16.70.201:35357
memcached_servers = 172.16.70.204:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = 123456
[vnc]
enabled = true
server_listen = 172.16.70.206 #$my_ip
server_proxyclient_address = 172.16.70.206 #$my_ip
[glance]
api_servers = http://172.16.70.205:9292
[oslo_concurrency]
lock_path = /var/lib/nova/tmp
[placement]
os_region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://172.16.70.201:35357/v3
username = placement
password = 123456
3）检查/etc/nova/nova.conf配置
4）编辑/etc/httpd/conf.d/00-nova-placement-api.conf文件
在文件最后面添加如下配置
<Directory /usr/bin>
<IfVersion >= 2.4>
Require all granted
</IfVersion>
<IfVersion < 2.4>
Order allow,deny
Allow from all
</IfVersion>
</Directory>
（5）安装Apache HTTP服务
yum -y install httpd
systemctl enabled httpd
systemctl restart httpd
netstat -ntlp
（6）同步nova相关数据库并启动nova服务
1）.同步数据库
su -s /bin/sh -c "nova-manage api_db sync" nova
su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
su -s /bin/sh -c "nova-manage db sync" nova
注意：同步时全部都是用的nova数据库用户账号，在前面的创建数据库和授权中，已创建该账号。同步过程中没有出现错误。
有一个警告：Configuration option(s) ['use_tpool'] not supported
[root@nova1 ~]# nova-manage cell_v2 list_cells
/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
这个可以忽略
nova-manage cell_v2 list_cells
3）.启动nova相关服务
systemctl enable openstack-nova-api.service openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
systemctl start openstack-nova-api.service openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
查看一下服务启动
systemctl status openstack-nova-api.service openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
