Openstack-Nova計算服務

Openstack-Nova計算服務

教程大綱

      

1. Nova的服務組件介紹
2. NovaCompute的安裝部署

1.建立數據庫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.安裝Nova服務組件

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

  openstack-nova-console openstack-nova-novncproxy \

  openstack-nova-scheduler

3.配置Nova和Nova-api的數據庫同步

[api_database]

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

[database]

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

同步數據庫

# 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認證

use_neutron = True

firewall_driver = nova.virt.firewall.NoopFirewallDriver   （使用networking服務，這裏是禁用內置防火牆服務  咱們使用neutron來）

[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的註冊信息

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的遠程管理訪問 （HTML5開的管理控制檯）

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]鎖定配置目錄

lock_path = /var/lib/nova/tmp

5.建立Nova的用戶

 . admin-openrc

（1）建立nova用戶
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)建立Nova服務實體
openstack service create --name nova \
  --description "OpenStack Compute" compute

(4)建立computer的服務api斷點
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.設置開機自啓動服務 

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.第二部分建立nova-compute計算節點

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

 將glance 加入服務中

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

8 .安裝計算節點node2 Nova

 yum install openstack-nova-compute

9.cp 控制節點上的Nova配置文件到計算節點上 

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

10.修改計算節點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

配置支持硬件虛擬化方式

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

[libvirt]

virt_type = qemu

11.啓動服務

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

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

13.在控制節點上驗證Nova節點的節點

openstack host list

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