Openstack-Nova计算服务

教程大纲

1. Nova的服务组件介绍
2. NovaCompute的安装部署

1.创建数据库Nova，Nova_api

mysql -u root -p -e "create database nova;"

mysql -u root -p -e "grant all privileges on nova.* to ‘nova‘@‘localhost‘ identified by ‘nova‘;"

mysql -u root -p -e "grant all privileges on nova.* to ‘nova‘@‘%‘ identified by ‘nova‘;"

mysql -u root -p -e "create database nova_api;"

mysql -u root -p -e "grant all privileges on nova_api.* to ‘nova‘@‘localhost‘ identified by ‘nova‘;"

mysql -u root -p -e "grant all privileges on nova_api.* to ‘nova‘@‘%‘ identified by ‘nova‘;"

2.安装Nova服务组件

yum install openstack-nova-api openstack-nova-conductor \

  openstack-nova-console openstack-nova-novncproxy \

  openstack-nova-scheduler

3.配置Nova和Nova-api的数据库同步

[api_database]

connection=mysql://nova:nova@192.168.100.40/nova_api

[database]

connection=mysql://nova:nova@192.168.100.40/nova

同步数据库

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

# su -s /bin/sh -c "nova-manage db sync" nova

4.修改配置Nova.conf

[DEFAULT]

my_ip=192.168.100.40

enabled_apis = osapi_compute,metadata

rpc_backend = rabbit  Rabbit使用

auth_strategy = keystone   使用keystone认证

use_neutron = True

firewall_driver = nova.virt.firewall.NoopFirewallDriver   （使用networking服务，这里是禁用内置防火墙服务  我们使用neutron来）

[oslo_messaging_rabbit]  使用Rabbitmq 

rabbit_host=192.168.100.40

rabbit_port=5672

rabbit_userid=openstack

rabbit_password=openstack

[keystone_authtoken]  配置keystone的注册信息

auth_uri = http://192.168.100.40:5000

auth_url = http://192.168.100.40:35357

auth_type = password

project_domain_name = default

user_domain_name = default

project_name = service

username = nova

password = nova

[vnc]  配置Novnc的远程管理访问 （HTML5开的管理控制台）

vncserver_listen=$my_ip

vncserver_proxyclient_address=$my_ip

[glance]   配置glance的api的接口

api_servers = http://192.168.100.40:9292

[oslo_concurrency]锁定配置目录

lock_path = /var/lib/nova/tmp

5.创建Nova的用户

 . admin-openrc

（1）创建nova用户
openstack user create --domain default   --password-prompt nova

(2)nova添加admin的角色
openstack role add --project service --user nova admin

(3)创建Nova服务实体
openstack service create --name nova   --description "OpenStack Compute" compute

(4)创建computer的服务api断点
openstack endpoint create --region RegionOne compute public http://192.168.100.40:8774/v2.1/%\(tenant_id\)s
    
openstack endpoint create --region RegionOne compute internal http://192.168.100.40:8774/v2.1/%\(tenant_id\)s
         
openstack endpoint create --region RegionOne compute admin http://192.168.100.40:8774/v2.1/%\(tenant_id\)s

6.设置开机自启动服务 

systemctl enable openstack-nova-api.service \

  openstack-nova-consoleauth.service openstack-nova-scheduler.service \

  openstack-nova-conductor.service openstack-nova-novncproxy.service

 systemctl start openstack-nova-api.service \

  openstack-nova-consoleauth.service openstack-nova-scheduler.service \

  openstack-nova-conductor.service openstack-nova-novncproxy.service

7.第二部分创建nova-compute计算节点

 openstack user create --domain default --password-prompt glance

 将glance 加入服务中

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

8 .安装计算节点node2 Nova

 yum install openstack-nova-compute

9.cp 控制节点上的Nova配置文件到计算节点上 

cp /etc/nova/nova.conf  192.168.100.50:/etc/nova.conf

10.修改计算节点Nova的配置文件

my_ip=192.168.100.50

[vnc]

enabled=true

keymap=en-us

vncserver_listen=0.0.0.0

vncserver_proxyclient_address=$my_ip

novncproxy_base_url=http://192.168.100.40:6080/vnc_auto.html

配置支持硬件虚拟化方式

egrep -c ‘(vmx|svm)‘ /proc/cpuinfo

[libvirt]

virt_type = qemu

11.启动服务

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

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

13.在控制节点上验证Nova节点的节点

openstack host list

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Openstack-Nova计算服务