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

淩亂°似流年 2023-01-12 14:56 178阅读 0赞

# 控制节点计算服务Nova安装 #

> **官方参考链接**：
> 
> [OpenStack安装指南：Install OpenStack services][OpenStack_Install OpenStack services]
> 
> [OpenStack Ussuri Installation Guides][]
> 
> [Compute service][]
> 
> **CSDN链接**：
> 
> [7 Openstack-Ussuri-Nova控制节点集群部署-centos][7 Openstack-Ussuri-Nova_-centos]
> 
> [6.1控制节点-Nova计算服务组件][6.1_-Nova]

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

### 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

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

## 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 openstack-nova-api openstack-nova-conductor \
      openstack-nova-novncproxy openstack-nova-scheduler -y

### 2.配置文件修改 ###

/etc/nova/nova.conf

备份nova配置

cp /etc/nova/nova.conf /etc/nova/nova.conf.bak
    egrep -v "^$|^#" /etc/nova/nova.conf.bak >/etc/nova/nova.conf

vim /etc/nova/nova.conf

注意：\`\`\[DEFAULT\] /transport\_url\`的配置和之前版本有所不同，Ussuri版本新增配置5672端口。

[DEFAULT]
    # ...
    enabled_apis = osapi_compute,metadata
    my_ip = 192.168.139.101
    transport_url =rabbit://openstack:openstack@controllercontroller:5672/
    use_neutron = true 
    firewall_driver = nova.virt.firewall.NoopFirewallDriver
    
    #osapi_compute_listen=$my_ip
    #osapi_compute_listen_port=8774
    #metadata_listen=$my_ip
    #metadata_listen_port=8775
    
    [api_database]
    # ...
    connection = mysql+pymysql://nova:nova@controller/nova_api
    
    [database]
    # ...
    connection = mysql+pymysql://nova:nova@controller/nova
    
    [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 = nova
    
    [vnc]
    enabled = true
    # ...
    server_listen = $my_ip
    server_proxyclient_address = $my_ip
    
    #novncproxy_host=$my_ip
    #novncproxy_port=6080
    
    [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 = placement
    
    [scheduler]
    discover_hosts_in_cells_interval = 300

echo "Result of Configuration"
    egrep -v "^#|^$" /etc/nova/nova.conf

### 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

结果如下：

[root@controller ~]# su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
    +-------+--------------------------------------+------------------------------------------+-------------------------------------------------+----------+
    |  Name |                 UUID                 |              Transport URL               |               Database Connection               | Disabled |
    +-------+--------------------------------------+------------------------------------------+-------------------------------------------------+----------+
    | cell0 | 00000000-0000-0000-0000-000000000000 |                  none:/                  | mysql+pymysql://nova:****@controller/nova_cell0 |  False   |
    | cell1 | 7c1fa489-2b68-458b-a893-f361f4f6d048 | rabbit://openstack:****@controller:5672/ |    mysql+pymysql://nova:****@controller/nova    |  False   |
    +-------+--------------------------------------+------------------------------------------+-------------------------------------------------+----------+
    [root@controller ~]#

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就完成了，下篇文章介绍独立的nova计算节点的安装方法

[OpenStack_Install OpenStack services]: https://docs.openstack.org/install-guide/openstack-services.html
[OpenStack Ussuri Installation Guides]: https://docs.openstack.org/ussuri/install/
[Compute service]: https://docs.openstack.org/nova/ussuri/install/
[7 Openstack-Ussuri-Nova_-centos]: https://blog.csdn.net/caiyqn/article/details/106850171
[6.1_-Nova]: https://blog.csdn.net/u013469753/article/details/106274411