OpenStack—M Nova（计算服务）

一、数据库配置

Controller节点

# mysql -uroot -p123456
MariaDB [(none)]> create database nova_api;
MariaDB [(none)]> create database nova;
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)]> exit

二、创建服务凭证和API端点

Controller节点

1）生效环境变量

# . admin-openrc

2）创建服务凭证

# openstack user create --domain default --password-prompt nova
# openstack role add --project service --user nova admin
# openstack service create --name nova --description "OpenStack Compute" compute

3）创建API端点

# openstack endpoint create --region RegionOne compute public http://controller:8774/v2.1/%\(tenant_id\)s
# openstack endpoint create --region RegionOne compute internal http://controller:8774/v2.1/%\(tenant_id\)s
# openstack endpoint create --region RegionOne compute admin http://controller:8774/v2.1/%\(tenant_id\)s

三、Controller节点—安装并配置Nova组件

Controller节点

1）安装Nova组件所需软件包

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

2）配置Nova所需组件

# vi /etc/nova/nova.conf
[DEFAULT]
enabled_apis = osapi_compute,metadata
rpc_backend = rabbit
auth_strategy = keystone
my_ip = 192.168.100.10
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

[oslo_messaging_rabbit]
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = 123456

[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = 123456

[vnc]
vncserver_listen = 192.168.100.10
vncserver_proxyclient_address = 192.168.100.10

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

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

3）同步数据库

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

4）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

四、Compute节点—安装并配置Nova组件

Compute节点

1）安装Nova组件所需软件包

# yum install -y openstack-nova-compute

2）配置Nova所需组件

# vi /etc/nova/nova.conf
[DEFAULT]
rpc_backend = rabbit
auth_strategy = keystone
my_ip = 192.168.100.20
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[oslo_messaging_rabbit]
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = 123456

[vnc]
enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = 192.168.100.10
novncproxy_base_url = http://192.168.100.10:6080/vnc_auto.html

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

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

3）检查主机是否支持虚拟机硬件加速

# egrep -c '(vmx|svm)' /proc/cpuinfo 
0

0表示不支持，1表示支持
不支持则编辑/etc/nova/nova.conf文件

# vi /etc/nova/nova.conf
[libvirt]
virt_type = qemu

启动Nova服务并设置开机自启动

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

五、验证Nova服务

1.生成环境变量

# . admin-openrc

2.查看nova服务

# openstack compute service list