openstack学习之六——控制节点安装nova

数据库和openstack创建用户等

创建数据库

MariaDB [(none)]> CREATE DATABASE nova_api;
MariaDB [(none)]> CREATE DATABASE nova;
MariaDB [(none)]> CREATE DATABASE nova_cell0;

设置密码

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY '123456';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY '123456';

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY '123456';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY '123456';

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY '123456';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY '123456';

提权

. admin-openrc

创建openstack用户nova

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

设置角色

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

创建openstack服务API

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

创建服务端点

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

安装和配置

安装nova相关

yum install openstack-nova-api openstack-nova-conductor openstack-nova-novncproxy openstack-nova-scheduler

配置nova配置文件：/etc/nova/nova.conf，内容如下

[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:123456@controller:5672/
my_ip = 10.0.0.11
use_neutron = true
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[api_database]
connection = mysql+pymysql://nova:123456@controller/nova_api

[database]
connection = mysql+pymysql://nova:123456@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 = 123456

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

[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 = 123456

同步数据库

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

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

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

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

验证上述操作

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

出现上图即为成功

设置开机启动

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

启动服务

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

验证安装

执行以下命令验证安装是否成功

openstack compute service list

openstack catalog list

openstack image list

nova-status upgrade check

执行命令时，会报错403，如下图所示

出现上述问题时，编辑/etc/httpd/conf.d/00-nova-placement-api.conf，写入如下内容

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

然后重启httpd服务，systemctl restart httpd，然后就正常了

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DONE