OpenStack Ussuri版安装系列—6.2计算节点-Nova计算服务组件

柔情只为你懂 2022-10-24 01:29 219阅读 0赞

# 计算节点计算服务Nova安装 #

> **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。

> **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**：
> 
> [8 Openstack-Ussuri-Nova计算节点部署-centos8][8 Openstack-Ussuri-Nova_-centos8]
> 
> [6.2计算节点-Nova计算服务组件][6.2_-Nova]

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

### 目录 ###

*  计算节点计算服务Nova安装
 *   *  一、Nova相关软件安装与配置
     *   *  1.安装nova软件
         *  2.配置文件修改
         *  3.确认计算节点是否支持虚拟机的硬件加速
         *  4.启动计算服务并配置为开机自启
     *  二、 将计算节点添加到单元数据库中

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

## 一、Nova相关软件安装与配置 ##

### 1.安装nova软件 ###

yum install openstack-nova-compute -y
    yum install python3-openstackclient openstack-selinux -y
    #用于快速配置
    #yum install openstack-utils -y

### 2.配置文件修改 ###

/etc/nova/nova.conf  
在文件修改前先备份配置文件

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

/etc/nova/nova.conf文件内容

vim /etc/nova/nova.conf

[DEFAULT]
    # ...
    enabled_apis = osapi_compute,metadata
    my_ip = 192.168.139.111
    transport_url =rabbit://openstack:openstack@controller: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 = 0.0.0.0
    server_proxyclient_address = $my_ip
    novncproxy_base_url = http://controller:6080/vnc_auto.html
    #novncproxy_host=$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

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

注：Configure the `[neutron]` section of **/etc/nova/nova.conf**. Refer to the [Networking service install guide][] for more details.  
服务器组件监听本机所有的网卡的 IP 地址，而代理组件仅仅监听本机作为计算节点管理网络接口的 IP 地址。  
在安装完成后注意修改：novncproxy\_base\_url为IP地址，IP地址为供应商地址，当除了管理网以外有多个IP地址时，选择合适的作为外部访问地址。

openstack-config --set  /etc/nova/nova.conf vnc novncproxy_base_url  http://192.168.232.101:6080/vnc_auto.html

### 3.确认计算节点是否支持虚拟机的硬件加速 ###

首先确定您的计算节点是否支持虚拟机的硬件加速，

egrep -c '(vmx|svm)' /proc/cpuinfo

①如果返回值为0，则表示计算节点不支持硬件加速，并且需要配置libvirt为使用QEMU，使用以下命令：

openstack-config --set  /etc/nova/nova.conf libvirt virt_type  qemu
    egrep -v "^#|^$" /etc/nova/nova.conf|grep 'virt_type'

另外，如果在VMware中搭建OpenStack，也需要配置libvirt为qemu。  
②如果返回为其他值，表示计算节点支持硬件加速且通常不需要额外的配置，使用以下命令：

openstack-config --set  /etc/nova/nova.conf libvirt virt_type  kvm 
    egrep -v "^#|^$" /etc/nova/nova.conf|grep 'virt_type'

vim /etc/nova/nova.conf
    -----
    [libvirt]
    # ...
    virt_type = kvm
    ----

### 4.启动计算服务并配置为开机自启 ###

需要启动2个服务

systemctl start libvirtd.service openstack-nova-compute.service 
    systemctl status libvirtd.service openstack-nova-compute.service
    systemctl enable libvirtd.service openstack-nova-compute.service
    systemctl list-unit-files |grep libvirtd.service
    systemctl list-unit-files |grep openstack-nova-compute.service

注意：  
（1）如果nova-compute服务无法启动，请检查 /var/log/nova/nova-compute.log。  
该错误消息可能表明控制器节点上的防火墙阻止访问端口5672。将控制节点防火墙配置为打开控制器节点上的端口5672，并重新启动计算节点上的服务。  
（2）控制节点

systemctl stop firewalld.service
    systemctl disable firewalld.service
    systemctl status firewalld.service
    
    systemctl restart rabbit_server.service
    systemctl restart rabbitmq-server.service
    systemctl status rabbitmq-server.service
    firewall-cmd --zone=public --add-port=5672/tcp --permanent
    systemctl restart firewalld
    firewall-cmd --zone=public --query-port=5672/tcp

然后再关闭防火墙

systemctl  stop  firewalld
    netstat -lntp
    systemctl  disable  firewalld

## 二、 将计算节点添加到单元数据库中 ##

请打开下一个安装教程文档。

[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_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/
[8 Openstack-Ussuri-Nova_-centos8]: https://blog.csdn.net/caiyqn/article/details/106858187
[6.2_-Nova]: https://blog.csdn.net/u013469753/article/details/106274429
[Networking service install guide]: https://docs.openstack.org/neutron/train/install/compute-install-rdo.html#configure-the-compute-service-to-use-the-networking-service