OpenStack离线Train版安装系列—6.1控制节点-Nova计算服务组件

柔光的暖阳◎ 2023-02-11 07:16 14阅读 0赞

> **OpenStack部署系列文章**  
> [OpenStack Victoria版 安装部署系列教程][OpenStack Victoria_]  
> [OpenStack Ussuri版 离线安装部署系列教程（全）][OpenStack Ussuri_]  
> [OpenStack Train版 离线安装部署系列教程（全）][OpenStack Train_]  
> 欢迎留言沟通，共同进步。

--------------------

### 文章目录 ###

*  控制节点计算服务Nova安装
 *   *  一、创建Nova相关数据库、凭据与API端点
     *   *  1.创建数据库并授权
         *  2.创建计算服务凭据
         *  3.创建compute API服务端点
     *  二、nova相关软件安装与配置
     *   *  1.安装nova相关软件
         *  2.配置文件修改
         *  3.同步创建相关数据库（注意顺序）
         *  4.启动计算服并设置开机自启
     *  三、控制节点Nova服务安装完成

--------------------

# 控制节点计算服务Nova安装 #

> 官方参考：[OpenStack官方安装指南：服务组件][OpenStack]，[Nova-install][]，[Nova-controller-install][]，[Nova-compute-install][]，[Nova-install-verify][]  
> 博客园：[CentOS7安装OpenStack(Rocky版)-04.安装Nova计算服务（控制节点）][CentOS7_OpenStack_Rocky_-04._Nova]

## 一、创建Nova相关数据库、凭据与API端点 ##

### 1.创建数据库并授权 ###

mysql -uroot -proot

需要创建3个数据库，分别是：nova\_api，nova，nova\_cell0

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

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';

flush privileges;
    show databases;
    select user,host from mysql.user;
    exit

### 2.创建计算服务凭据 ###

（1）在keystone上创建nova用户

cd 
    source admin-openrc.sh
    openstack user create --domain default --password=nova nova
    openstack user list

（2）在keystone上将nova用户，配置为admin角色，并添加进service项目  
以下命令无输出

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

（3）创建nova计算服务的实体

openstack service create --name nova --description "OpenStack Compute" compute
    openstack service list

### 3.创建compute API服务端点 ###

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
    openstack endpoint list

## 二、nova相关软件安装与配置 ##

### 1.安装nova相关软件 ###

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

### 2.配置文件修改 ###

/etc/nova/nova.conf  
依次执行以下命令，将其写入脚本，执行脚本

touch controller-node-nova.conf.sh
    vim controller-node-nova.conf.sh
    bash controller-node-nova.conf.sh

#!/bin/bash
    #controller-node-nova.conf.sh
    openstack-config --set  /etc/nova/nova.conf DEFAULT enabled_apis  osapi_compute,metadata
    openstack-config --set  /etc/nova/nova.conf DEFAULT my_ip 192.168.1.81【注意修改为本机管理网的IP地址】
    openstack-config --set  /etc/nova/nova.conf DEFAULT use_neutron  true 
    openstack-config --set  /etc/nova/nova.conf DEFAULT firewall_driver  nova.virt.firewall.NoopFirewallDriver
    openstack-config --set  /etc/nova/nova.conf DEFAULT transport_url  rabbit://openstack:openstack@controller
    
    openstack-config --set  /etc/nova/nova.conf api_database connection  mysql+pymysql://nova:nova@controller/nova_api
    
    openstack-config --set  /etc/nova/nova.conf database connection  mysql+pymysql://nova:nova@controller/nova
    
    openstack-config --set  /etc/nova/nova.conf api auth_strategy  keystone 
    
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken www_authenticate_uri  http://controller:5000/
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken auth_url  http://controller:5000/
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken memcached_servers  controller:11211
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken auth_type  password
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken project_domain_name  default 
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken user_domain_name  default
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken project_name  service 
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken username  nova 
    openstack-config --set  /etc/nova/nova.conf keystone_authtoken password  nova
    
    openstack-config --set  /etc/nova/nova.conf vnc enabled true
    openstack-config --set  /etc/nova/nova.conf vnc server_listen '$my_ip'
    openstack-config --set  /etc/nova/nova.conf vnc server_proxyclient_address '$my_ip'
    
    openstack-config --set  /etc/nova/nova.conf glance api_servers  http://controller:9292
    
    openstack-config --set  /etc/nova/nova.conf oslo_concurrency lock_path  /var/lib/nova/tmp 
    
    openstack-config --set  /etc/nova/nova.conf placement region_name RegionOne
    openstack-config --set  /etc/nova/nova.conf placement project_domain_name Default
    openstack-config --set  /etc/nova/nova.conf placement project_name service
    openstack-config --set  /etc/nova/nova.conf placement auth_type password
    openstack-config --set  /etc/nova/nova.conf placement user_domain_name Default
    openstack-config --set  /etc/nova/nova.conf placement auth_url http://controller:5000/v3
    openstack-config --set  /etc/nova/nova.conf placement username placement
    openstack-config --set  /etc/nova/nova.conf placement password placement
    
    openstack-config --set  /etc/nova/nova.conf scheduler discover_hosts_in_cells_interval 300
    echo "Result of Configuration"
    egrep -v "^#|^$" /etc/nova/nova.conf

bash controller-node-nova.conf.sh

### 3.同步创建相关数据库（注意顺序） ###

（1）填充nova-api数据库

su -s /bin/sh -c "nova-manage api_db sync" nova

验证数据库

mysql -unova -pnova -e "use nova_api;show tables;"

（2）注册cell0数据库

su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova

（3）创建cell1单元

su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova

（4）初始化nova数据库

su -s /bin/sh -c "nova-manage db sync" nova # 这里遇到两个警告信息，不是很严重，后续版本会修复，再重新执行一下就不会报了
    su -s /bin/sh -c "nova-manage db sync" nova

（5）检查确认cell0和cell1注册成功

su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova

返回的数据存储在nova\_api数据库的cell\_mappings表中

（6）验证数据库

mysql -unova -pnova -e "use nova_api;show tables;"
    mysql -uplacement -pplacement -e "use placement;show tables;"

### 4.启动计算服并设置开机自启 ###

systemctl start openstack-nova-api.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
    systemctl status openstack-nova-api.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
    systemctl enable openstack-nova-api.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
    systemctl list-unit-files |grep openstack-nova* |grep enabled

## 三、控制节点Nova服务安装完成 ##

至此，在控制节点安装计算服务nova就完成，继续搭建进入下一篇文档。

[OpenStack Victoria_]: https://blog.csdn.net/u013469753/article/details/116122782
[OpenStack Ussuri_]: https://blog.csdn.net/u013469753/article/details/106549085
[OpenStack Train_]: https://blog.csdn.net/u013469753/article/details/106549917
[OpenStack]: https://docs.openstack.org/install-guide/openstack-services.html
[Nova-install]: https://docs.openstack.org/nova/train/install/index.html
[Nova-controller-install]: https://docs.openstack.org/nova/train/install/controller-install.html
[Nova-compute-install]: https://docs.openstack.org/nova/train/install/compute-install.html
[Nova-install-verify]: https://docs.openstack.org/nova/train/install/verify.html
[CentOS7_OpenStack_Rocky_-04._Nova]: https://www.cnblogs.com/tssc/p/9861488.html