安装nova计算服务（compute节点）

• 安装软件包

yum install openstack-nova-compute -y

• 配置文件

vim /etc/nova/nova.conf

[DEFAULT]
# ...
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:openstack@controller
my_ip = 10.0.19.134   (填自己的ip地址)
use_neutron = true
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[api]
# ...
auth_strategy = keystone

[keystone_authtoken]
# ...
www_authenticate_uri = http://controller:5000/
auth_url = http://controller:5000/
memcached_servers = controller:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = nova
password = xxxxxxx

[vnc]
# ...
enabled = true
server_listen = 0.0.0.0
server_proxyclient_address = $my_ip
novncproxy_base_url = http://controller:6080/vnc_auto.html

[glance]
# ...
api_servers = http://controller: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://controller:5000/v3
username = placement
password = xxxxxxx

• 判断计算节点是否支持硬件加速

egrep -c '(vmx|svm)' /proc/cpuinfo
如果返回值为0，就需要配置/etc/nova/nova.conf
[libvirt]
virt_type = qemu

• 开机自启和启动

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

安装nova计算服务-续（control节点）

• 安装服务

# 环境变量
. admin-openrc
# 确实数据库中的计算主机
openstack compute service list --service nova-compute
# 发现计算主机
su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova
# 自动发现主机
vim /etc/nova/nova.conf

[scheduler]
discover_hosts_in_cells_interval = 300

• 验证服务

# 列出成功的进程
openstack compute service list
# 列出api端口
openstack catalog list
# 列出image的连接
openstack image list
# 列出单元和放置api是否运行成功
nova-status upgrade check

如果执行出现以下报错

[root@controller ~]# nova-status upgrade check
Error:
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/nova/cmd/status.py", line 398, in main
    ret = fn(*fn_args, **fn_kwargs)
  File "/usr/lib/python2.7/site-packages/oslo_upgradecheck/upgradecheck.py", line 102, in check
    result = func(self)
  File "/usr/lib/python2.7/site-packages/nova/cmd/status.py", line 164, in _check_placement
    versions = self._placement_get("/")
  File "/usr/lib/python2.7/site-packages/nova/cmd/status.py", line 154, in _placement_get
    return client.get(path, raise_exc=True).json()
  File "/usr/lib/python2.7/site-packages/keystoneauth1/adapter.py", line 386, in get
    return self.request(url, 'GET', **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneauth1/adapter.py", line 248, in request
    return self.session.request(url, method, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneauth1/session.py", line 961, in request
    raise exceptions.from_response(resp, method, url)
Forbidden: Forbidden (HTTP 403)

则

vim /etc/httpd/conf.d/00-placement-api.conf 

把这个加在文件的最后面
<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