Centos7.4安装openstack（queens）详细安装部署（四）－计算服务（nova）安装

一、创库授权

　　1.1、（控制节点）配置数据库 

mysql -u root -pADMIN_PASS

　　1.2、创建nova相关数据库并设置访问权限

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

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

GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'ADMIN_PASS';

GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'ADMIN_PASS';

GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'ADMIN_PASS';

　　1.3、控制节点）创建nova认证相关信息 

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

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

openstack service create --name nova --description "OpenStack Compute" compute
 
openstack endpoint create --region RegionOne compute public http://controller:8774/v2.1
 
openstack endpoint create --region RegionOne compute internal http://controller:8774/v2.1

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

openstack user create --domain default --password ADMIN_PASS placement

openstack role add --project service --user placement admin
 
openstack service create --name placement --description "Placement API" placement
  
openstack endpoint create --region RegionOne placement public http://controller:8778
  
openstack endpoint create --region RegionOne placement internal http://controller:8778
  
openstack endpoint create --region RegionOne placement admin http://controller:8778

二、安装服务

　　1.1、（控制节点）安装软件包并配置组件

yum install openstack-nova-api openstack-nova-conductor openstack-nova-console openstack-nova-novncproxy openstack-nova-scheduler openstack-nova-placement-api -y

　　1.2、编辑/etc/nova/nova.conf文件并完成以下配置

cp /etc/nova/nova.conf{,.bak}
grep '^[a-z[]' /etc/nova/nova.conf.bak >/etc/nova/nova.conf

[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:ADMIN_PASS@controller
my_ip = 10.0.0.11
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
...
[api_database]
connection = mysql+pymysql://nova:ADMIN_PASS@controller/nova_api
...
[database]
connection = mysql+pymysql://nova:ADMIN_PASS@controller/nova
...
[api]
auth_strategy = keystone
...
[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = ADMIN_PASS
...
[vnc]
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip
...
[glance]
api_servers = http://controller: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://controller:35357/v3
username = placement
password = ADMIN_PASS

　　1.3、因为软件包的bug，编辑/etc/httpd/conf.d/00-nova-placement-api.conf文件增加如下内容

<Directory /usr/bin>
   <IfVersion >= 2.4>
      Require all granted
   </IfVersion>
   <IfVersion < 2.4>
      Order allow,deny
      Allow from all
   </IfVersion>
</Directory>

　　1.4、重启httpd服务

systemctl restart httpd

　　1.5、导入相关数据库表结构

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

nova-manage cell_v2 list_cells                                  验证cell0和cell1是否成功注册

　　1.6、设置服务的开机自启动，并启动服务

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

三、计算节点安装服务

　　1.1、（计算节点）在计算节点安装计算服务

yum install openstack-nova-compute -y

　　1.2、编辑/etc/nova/nova.conf文件并设置如下内容

cp /etc/nova/nova.conf{,.bak}
grep '^[a-z[]' /etc/nova/nova.conf.bak >/etc/nova/nova.conf

[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:ADMIN_PASS@controller
my_ip = 10.0.0.31
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
...

[api]
auth_strategy = keystone
...

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

[vnc]
enabled = True
server_listen = 0.0.0.0
server_proxyclient_address = $my_ip
novncproxy_base_url = http://10.0.0.11:6080/vnc_auto.html
...

[glance]
api_servers = http://controller: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://controller:35357/v3
username = placement
password = ADMIN_PASS

　　1.3、检测当前计算节点是否支持硬件虚拟化，这里返回0，不支持硬件虚拟化。

　　　　编辑/etc/nova/nova.conf文件设置qemu来提供软件虚拟化

/etc/nova/nova.conf
[libvirt]
virt_type = qemu
cpu_mode = none

　　1.4、设置服务的开机自启动，并启动计算服务

systemctl enable libvirtd.service openstack-nova-compute.service
systemctl start libvirtd.service openstack-nova-compute.service

　　1.5、（控制节点）向cell数据库添加计算节点 

　　　　执行下面的命令，查看计算节点信息是否已经在数据库

 openstack compute service list --service nova-compute

　　1.6、发现计算节点

 su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova

　　1.7、控制节点）验证操作 　

openstack compute service list             列出计算服务的运行状态
openstack catalog list                     列出认证服务的端口
openstack image list                       列出镜像信息，确认能访问镜像服务
nova-status upgrade check                  确认cells和placement api成功运行