安装nova计算服务

• 创建数据库

mysql -u root -p
# 创建数据库
MariaDB [(none)]> CREATE DATABASE nova_api;
MariaDB [(none)]> CREATE DATABASE nova;
MariaDB [(none)]> CREATE DATABASE nova_cell0;
# 创建用户和配置权限
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'xxxxxxx';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
  IDENTIFIED BY 'xxxxxxx';

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

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

• 创建nova凭证

  • nova用户密码：xxxxxxx

# 环境变量
. admin-openrc
# 创建nova用户
openstack user create --domain default --password-prompt nova
# 添加为admin权限
openstack role add --project service --user nova admin
# 创建nova服务
openstack service create --name nova \
  --description "OpenStack Compute" compute
# 创建compute api 服务节点
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

• 安装服务

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

• 编辑配置

vim /etc/nova/nova.conf

[DEFAULT]
# ...
enabled_apis = osapi_compute,metadata

[api_database]
# ...
connection = mysql+pymysql://nova:xxxxxxx@controller/nova_api

[database]
# ...
connection = mysql+pymysql://nova:xxxxxxx@controller/nova

[DEFAULT]
# ...
transport_url = rabbit://openstack:openstack@controller:5672/

[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 = xxxxxxx

[DEFAULT]
# ...
my_ip = 10.0.19.133

[DEFAULT]
# ...
use_neutron = true
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[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 = xxxxxxx

• 同步数据库

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

• 配置cell0数据库

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

• 验证验证 nova cell0 和 cell1 是否正确注册

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

• 开机自启和启动

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