Openstack雲計算（二）：openstack rocky部署三：nova 部署與驗證（控制節）

Openstack 雲計算（二）： Openstack Rocky部署三 nova 部署與驗證 (控制節點)

標籤（空格分隔）： openstack系列

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• 一： nova 的部署
• 二： nova 驗證

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一： nova的部署

###１.１　nova　數據庫建立

mysql -uroot -p flyfish225

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

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';

GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'localhost' IDENTIFIED BY 'placement';
GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'%' IDENTIFIED BY 'placement';

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

1.2 在keystone上面註冊nova服務

openstack user create --domain default --password=nova nova
openstack user list

在keystone上將nova用戶配置爲admin角色並添加進service項目
openstack role add --project service --user nova admin

建立nova計算服務的實體

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

建立計算服務的API端點（endpoint）

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

這個版本的nova增長了placement項目

一樣，建立並註冊該項目的服務證書

openstack user create --domain default --password=placement placement
openstack role add --project service --user placement admin
openstack service create --name placement --description "Placement API" placement

建立placement項目的endpoint（API端口）

openstack endpoint create --region RegionOne placement public http://controller:8778
openstack endpoint create --region RegionOne placement internal http://controller:8778
openstack endpoint create --region RegionOne placement admin http://controller:8778
openstack endpoint list

在控制節點安裝nova相關服務 

yum install openstack-nova-api openstack-nova-conductor \
  openstack-nova-console openstack-nova-novncproxy \
  openstack-nova-scheduler openstack-nova-placement-api -y

openstack-config --set  /etc/nova/nova.conf DEFAULT enabled_apis  osapi_compute,metadata
openstack-config --set  /etc/nova/nova.conf DEFAULT my_ip 10.0.0.11
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 placement_database connection  mysql+pymysql://placement:placement@controller/placement
openstack-config --set  /etc/nova/nova.conf api auth_strategy  keystone 
openstack-config --set  /etc/nova/nova.conf keystone_authtoken auth_url  http://controller:5000/v3
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

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

修改nova的虛擬主機配置文件
cp /etc/httpd/conf.d/00-nova-placement-api.conf /etc/httpd/conf.d/00-nova-placement-api.conf.bak

vim /etc/httpd/conf.d/00-nova-placement-api.conf
----
Listen 8778

<VirtualHost *:8778>
  WSGIProcessGroup nova-placement-api
  WSGIApplicationGroup %{GLOBAL}
  WSGIPassAuthorization On
  WSGIDaemonProcess nova-placement-api processes=3 threads=1 user=nova group=nova
  WSGIScriptAlias / /usr/bin/nova-placement-api
  <IfVersion >= 2.4>
    ErrorLogFormat "%M"
  </IfVersion>
  ErrorLog /var/log/nova/nova-placement-api.log
  #SSLEngine On
  #SSLCertificateFile ...
  #SSLCertificateKeyFile ...
</VirtualHost>

Alias /nova-placement-api /usr/bin/nova-placement-api
<Location /nova-placement-api>
  SetHandler wsgi-script
  Options +ExecCGI
  WSGIProcessGroup nova-placement-api
  WSGIApplicationGroup %{GLOBAL}
  WSGIPassAuthorization On
</Location>

# made by zhangyy
<Directory /usr/bin>
   <IfVersion >= 2.4>
      Require all granted
   </IfVersion>
   <IfVersion < 2.4>
      Order allow,deny
      Allow from all
   </IfVersion>
</Directory>
------

systemctl restart httpd
systemctl status httpd

至此，nova計算服務的軟件包安裝完成

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1.3 同步nova數據（注意同步順序）

nova_api有32張表，placement有32張表，nova_cell0有110張表，nova也有110張表

 初始化nova-api和placement數據庫

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

 mysql -h10.0.0.11 -unova -pnova -e "use nova_api;show tables;"
mysql -h10.0.0.11 -uplacement -pplacement -e "use placement;show tables;"

nova_api和placement都有32張表，區別在於nova_api數據庫的cell_mappings表多兩條數據，存放的是nova和rabbitmq等的配置信息

初始化nova_cell0和nova數據庫
# 註冊cell0數據庫

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

# 建立cell1單元

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

# 初始化nova數據庫

su -s /bin/sh -c "nova-manage db sync" nova
# 檢查確認cell0和cell1註冊成功

su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
# 驗證數據庫

mysql -h10.0.0.11 -unova -pnova -e "use nova_cell0;show tables;"
mysql -h10.0.0.11 -unova -pnova -e "use nova;show tables;"

經過對比可知，這兩個數據庫的表目前徹底同樣，區別在於nova數據庫的service表中有4條數據，存放的是當前版本nova相關服務的註冊信息

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檢查確認cell0和cell1註冊成功
su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova

返回的數據存儲在nova_api數據庫的cell_mappings表中

啓動nova服務

須要啓動5個服務

systemctl start openstack-nova-api.service openstack-nova-consoleauth.service \
  openstack-nova-scheduler.service openstack-nova-conductor.service \
  openstack-nova-novncproxy.service

systemctl status openstack-nova-api.service openstack-nova-consoleauth.service \
  openstack-nova-scheduler.service openstack-nova-conductor.service \
  openstack-nova-novncproxy.service

systemctl enable openstack-nova-api.service openstack-nova-consoleauth.service \
  openstack-nova-scheduler.service openstack-nova-conductor.service \
  openstack-nova-novncproxy.service

systemctl list-unit-files |grep openstack-nova* |grep enabled

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至此，在控制節點安裝nova計算服務就完成了，下篇文章介紹獨立的nova計算節點的安裝方法