OpenStack控制节点上搭建Q版nova服务(step5)

placement组件监听的端口号是:8778

nova组件监听的端口号是:6080、8774、8775

其中6080端口号是novncproxy监听的端口号。

1.安装服务组件

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

2.在mariadb中创建nova_api、nova、nova_cell0数据库,创建nova用户、设置密码并授予对这三个数据库的所有操作权限:

mysql -uroot -p

create database nova_api;

create database nova;

create database nova_cell0;

grant all privileges on nova_api.* to 'nova'@'localhost' identified by 'nova' with grant option;

grant all privileges on nova_api.* to 'nova'@'%' identified by 'nova' with grant option;

grant all privileges on nova.* to 'nova'@'localhost' identified by 'nova' with grant option;

grant all privileges on nova.* to 'nova'@'%' identified by 'nova' with grant option;

grant all privileges on nova_cell0.* to 'nova'@'localhost' identified by 'nova' with grant option;

grant all privileges on nova_cell0.* to 'nova'@'%' identified by 'nova' with grant option;

flush privileges;

exit;

3.配置nova组件,以便它可以访问mariadb数据库,在导nova表到数据库之前,一定要先配置这个。

vim /etc/nova/nova.conf

在[api_database]中,添加:

connection = mysql+pymysql://nova:nova@controller1/nova_api

在[database]中,添加:

connection = mysql+pymysql://nova:nova@controller1/nova

保存退出。

3.将nova_api组件的表导入到mariadb的nova_api数据库中
su -s /bin/sh -c "nova-manage api_db sync" nova

查看nova_api数据库,我的有32张表。

4.将nova组件的表导入到mariadb的nova数据库中

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

查看nova数据库,我的有110张表。

可能会有一个警告:WARNING: cell0 mapping not found - not syncing cell0.解决办法在第五步。这个报错是从N版开始新增的cell功能。

5.注册nova_cell0数据库并创建cell1

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

查看nova_cell0,我的有110张表,和nova数据库中的表一摸一样。

创建cell1:

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

6.在keystone服务中,为nova和placement创建用户,并授予权限:

为nova创建用户并授予权限:

openstack user create --domain default --password-prompt nova       #回车会要求设置密码,我设置的密码是nova

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

为placement创建用户并授予权限:

openstack user create --domain default --password-prompt placement      #回车会要求设置密码,我设置的密码是placement
openstack role add --project service --user placement admin

7.配置nova和placement服务组件向keystone服务组件请求token:

配置nova组件向keystone服务请求token:

vim /etc/nova/nova.conf

在[api]下,添加:
auth_strategy = keystone
在[keystone_authtoken]下,添加:
auth_url = http://controller1:5000/v3
memcached_servers = controller1:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova

配置placement服务组件向keystone服务组件请求token:
在[placement]下,添加:
os_region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller1:5000/v3
username = placement
password = placement

保存退出。

8.配置nova启用计算和元数据API

vim /etc/nova/nova.conf
在[DEFAULT]下,添加:
enabled_apis = osapi_compute,metadata

保存退出。

9.在keystone中为nova和placement分别创建服务实体和API端点

为nova创建服务实体和API端点:

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

openstack endpoint create --region RegionOne compute public http://controller1:8774/v2.1

openstack endpoint create --region RegionOne compute internal http://controller1:8774/v2.1
openstack endpoint create --region RegionOne compute admin http://controller1:8774/v2.1

为placement创建服务实体和API端点:

openstack service create --name placement --description "Placement API" placement

openstack endpoint create --region RegionOne placement public http://controller1:8778
openstack endpoint create --region RegionOne placement internal http://controller1:8778
openstack endpoint create --region RegionOne placement admin http://controller1:8778

10.配置nova访问RabbitMQ 消息队列

vim /etc/nova/nova.conf
在[DEFAULT]下,添加:

transport_url = rabbit://openstack:123456@controller1

保存退出。

11.启动nova支持网络服务

vim /etc/nova/nova.conf
在[DEFAULT]下,添加:

use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver

保存退出。

12.配置VNC代理

vim /etc/nova/nova.conf

在[DEFAULT]下,添加:

my_ip = 192.168.0.10

在[vnc]下,添加:
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip

保存退出

13.指定glance服务API的位置

vim /etc/nova/nova.conf

在[glance]下,添加:
api_servers = http://controller1:9292

保存退出。

14.配置oslo_concurrency锁定路径

vim /etc/nova/nova.conf

在[oslo_concurrency]下,添加:
lock_path = /var/lib/nova/tmp

保存退出。

15.由于软件包的一个bug,需要在/etc/httpd/conf.d/00-nova-placement-api.conf文件中添加如下配置,来启用对Placement API的访问:

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

在   ErrorLogFormat "%M"    这行之后,粘贴下面的内容:

<Directory /usr/bin>
<IfVersion >= 2.4>
Require all granted
</IfVersion>
<IfVersion < 2.4>
Order allow,deny Allow from all
</IfVersion>
</Directory>

保存退出。

16.启动服务

重启httpd服务:systemctl restart httpd         #httpd一定要重启,因为placement服务是通过httpd启动的。

启动nova服务并设置开机自启:

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

将上面用到的配置汇总一下:

vim /etc/nova/nova.conf

[api_database]
connection = mysql+pymysql://nova:nova@controller1/nova_api

[database]
connection = mysql+pymysql://nova:nova@controller1/nova

[api]
auth_strategy = keystone
[keystone_authtoken]
auth_url = http://controller1:5000/v3
memcached_servers = controller1:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova

[placement]
os_region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller1:5000/v3
username = placement
password = placement

[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:123456@controller1
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
my_ip = 192.168.0.10

[vnc]
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip

[glance]
api_servers = http://controller1:9292

[oslo_concurrency]
lock_path = /var/lib/nova/tmp

该启动的服务都已经验证成功启动了。本篇初版到此结束。

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