openstack 安装 Nova

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本文详细介绍了如何在CentOS 7环境下部署OpenStack Nova服务，包括数据库设置、Keystone认证配置、服务安装与配置等步骤，并提供了测试方法来确保部署成功。

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openstack Q版

服务器系统centos7

控制端IP：192.168.50.31

计算端IP：192.168.50.32

Nova

下面所有操作全在控制端

# 登录
mysql -u root -p

# 创建表
CREATE DATABASE nova_api;
CREATE DATABASE nova;
CREATE DATABASE nova_cell0;

# 授权
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'nova';
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keystone的认证

#获得 admin 凭证
. admin-openrc

# 创建 nova 用户
openstack user create --domain default --password-prompt nova

# 给 nova 用户添加 admin 角色
openstack role add --project service --user nova admin

# 创建 nova 服务实体：
openstack service create --name nova --description "OpenStack Compute" compute

# 创建 Compute 服务 API 端点 
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
 
# 创建 placement 用户
openstack user create --domain default --password-prompt placement
# 给 placement 用户添加 admin 角色
openstack role add --project service --user placement admin
# 创建 placement 服务实体：
openstack service create --name placement --description "Placement API" placement
# 创建 placement 服务 API 端点 
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

安装配置

# YUM安装
yum -y  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 nova.conf
vim /etc/nova/nova.conf
[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:rabbit@controller
my_ip = 192.168.50.31
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
block_device_allocate_retries=1000

[api_database]
connection = mysql+pymysql://nova:nova@controller/nova_api

[database]
connection = mysql+pymysql://nova:nova@controller/nova

[api]
auth_strategy = keystone

[keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova


[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:5000/v3
username = placement
password = placement

配置httpd

# 编辑配置文件 00-nova-placement-api.conf
vim /etc/httpd/conf.d/00-nova-placement-api.conf
<Directory /usr/bin>
   <IfVersion >= 2.4>
      Require all granted
   </IfVersion>
   <IfVersion < 2.4>
      Order allow,deny
      Allow from all
   </IfVersion>
</Directory>

# 复制的格式可能有点不对 下面是官网的
https://docs.openstack.org/nova/queens/install/controller-install-rdo.html

# 重起httpd服务
systemctl restart httpd

同步数据库

# shell操作
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
# 测试是否成功
nova-manage cell_v2 list_cells

配置服务

systemctl enable openstack-nova-api.service \
  openstack-nova-consoleauth.service openstack-nova-scheduler.service \
  openstack-nova-conductor.service openstack-nova-novncproxy.service
systemctl restart openstack-nova-api.service \
  openstack-nova-consoleauth.service openstack-nova-scheduler.service \
  openstack-nova-conductor.service openstack-nova-novncproxy.service

验证操作

# 获得 admin 凭证
. admin-openrc

# 列出服务组件，以验证是否成功启动并注册了每个进程
openstack compute service list

# 列出api端点
openstack catalog list

# 列出当前所有镜像
openstack image list

# 检查cells 和 placement API 是否正常 (很关键，如果有问题 后面会有很多问题)
nova-status upgrade check

# 验证参考官网 https://docs.openstack.org/nova/queens/install/verify.html