一、创建数据库（控制节点）
创建数据库以及用户：
CREATE DATABASE nova_api;
CREATE DATABASE nova;
CREATE DATABASE nova_cell0;
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY 'nova2018';
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY 'nova2018';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'nova2018';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'nova2018';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'nova2018';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'nova2018';
flush privileges;
exit;
二、创建nova认证相关信息（控制节点）
用admin用户凭证创建nova用户凭证
source admin-openrc
openstack user create --domain default --password-prompt nova #设置密码nova2018
给nova用户添加admin角色
openstack role add --project service --user nova admin
创建nova服务
openstack service create --name nova --description "OpenStack Compute" compute
创建计算api端口
openstack endpoint create --region RegionOne compute public http://10.1.80.110:8774/v2.1
openstack endpoint create --region RegionOne compute internal http://10.1.80.110:8774/v2.1
openstack endpoint create --region RegionOne compute admin http://10.1.80.110:8774/v2.1
创建placement服务用户
openstack user create --domain default --password-prompt placement #密码设置的placement2018
添加placement用户到服务项目
openstack role add --project service --user placement admin
创建placement api服务
openstack service create --name placement --description "Placement API" placement
创建placement api服务端口
openstack endpoint create --region RegionOne placement public http://10.1.80.110:8778
openstack endpoint create --region RegionOne placement internal http://10.1.80.110:8778
openstack endpoint create --region RegionOne placement admin http://10.1.80.110:8778
三、安装软件包并配置组件（控制节点）
（1）控制节点安装服务
yum install openstack-nova-api openstack-nova-conductor \
openstack-nova-console openstack-nova-novncproxy \
openstack-nova-scheduler openstack-nova-placement-api -y
（2）编辑/etc/nova/nova.conf文件并完成以下配置
[DEFAULT]
enabled_apis = osapi_compute,metadata
my_ip = 10.1.80.110
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
transport_url = rabbit://openstack:openstack2018@10.1.80.110
[api_database]
connection = mysql://nova:nova2018@localhost/nova_api
[database]
connection = mysql://nova:nova2018@localhost/nova
[api]
auth_strategy = keystone
[keystone_authtoken]
auth_uri = http://10.1.80.110:5000
auth_url = http://10.1.80.110:35357
memcached_servers = 10.1.80.110:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova2018
[vnc]
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip
[glance]
api_servers = http://10.1.80.110:9292
[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://10.1.80.110:35357/v3
username = placement
password = placement2018
因为软件包的bug，编辑/etc/httpd/conf.d/00-nova-placement-api.conf文件最后增加如下内容：
<Directory /usr/bin>
<IfVersion >= 2.4>
Require all granted
</IfVersion>
<IfVersion < 2.4>
Order allow,deny
Allow from all
</IfVersion>
</Directory>
重启httpd服务
systemctl restart httpd
同步api数据库
su -s /bin/sh -c "nova-manage api_db sync" nova
此处竟然有报错
[root@controller ~]# su -s /bin/sh -c "nova-manage api_db sync" nova
/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
exception.NotSupportedWarning
解决方案如下： bug：https://bugs.launchpad.net/nova/+bug/1746530 pacth：https://github.com/openstack/oslo.db/commit/c432d9e93884d6962592f6d19aaec3f8f66ac3a2
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
同步nova数据库：
su -s /bin/sh -c "nova-manage db sync" nova
确认cell0和cell1：
nova-manage cell_v2 list_cells
启动服务：
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
systemctl status openstack-nova-api.service \
openstack-nova-consoleauth.service openstack-nova-scheduler.service \
openstack-nova-conductor.service openstack-nova-novncproxy.service