7.添加OpenStack计算服务
添加计算服务安装和配置控制器节点
创建数据库
mysql -uroot -ptoyo123
CREATE DATABASE nova;
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
IDENTIFIED BY 'toyo123';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
IDENTIFIED BY 'toyo123';
exit
创建服务凭据
source admin-openrc.sh
keystone user-create --name nova --pass Abcd1234
keystone user-role-add --user nova --tenant service --role admin
keystone service-create --name nova --type compute \
--description "OpenStack Compute"
keystone endpoint-create \
--service-id $(keystone service-list | awk '/ compute / {print $2}') \
--publicurl http://controller:8774/v2/%\(tenant_id\)s \
--internalurl http://controller:8774/v2/%\(tenant_id\)s \
--adminurl http://controller:8774/v2/%\(tenant_id\)s \
--region regionOne
安装和配置计算控制器件
yum install -y openstack-nova-api openstack-nova-cert openstack-nova-conductor \
openstack-nova-console openstack-nova-novncproxy openstack-nova-scheduler \
python-novaclient
编辑 /etc/nova/nova.conf文件
mv /etc/nova/nova.conf /etc/nova/nova.conf_bak
vim /etc/nova/nova.conf
connection = mysql://nova:toyo123@controller/nova
rpc_backend = rabbit
rabbit_host = controller
rabbit_password = Abcd1234
auth_strategy = keystone
verbose = True
my_ip = 192.168.116.8
vncserver_listen = 192.168.116.8
vncserver_proxyclient_address = 192.168.116.8
auth_uri = http://controller:5000/v2.0
identity_uri = http://controller:35357
admin_tenant_name = service
admin_user = nova
admin_password = Abcd1234
host = controller
填充数据库并启动服务与设置开机自启动
su -s /bin/sh -c "nova-manage db sync" nova
systemctl enable openstack-nova-api.service openstack-nova-cert.service \
openstack-nova-consoleauth.service openstack-nova-scheduler.service \
openstack-nova-conductor.service openstack-nova-novncproxy.service
systemctl restart openstack-nova-api.service openstack-nova-cert.service \
openstack-nova-consoleauth.service openstack-nova-scheduler.service \
openstack-nova-conductor.service openstack-nova-novncproxy.service
安装和配置计算节点
安装软件包：
yum install -y openstack-nova-compute sysfsutils
编辑/etc/nova/nova.conf件
mv /etc/nova/nova.conf /etc/nova/nova.conf_bak
vim /etc/nova/nova.conf
rpc_backend = rabbit
rabbit_host = controller
rabbit_password = Abcd1234
auth_strategy = keystone
my_ip = 192.168.116.7
vnc_enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = 192.168.116.7
novncproxy_base_url = http://controller:6080/vnc_auto.html
verbose = True
auth_uri = http://controller:5000/v2.0
identity_uri = http://controller:35357
admin_tenant_name = service
admin_user = nova
admin_password = Abcd1234
host = controller
确定你的计算节点是否支持硬件加速虚拟机：
egrep -c '(vmx|svm)' /proc/cpuinfo
如果此命令返回的值 一或更大，你的计算节点支持硬件加速，这通常不需要额外的配置。如果
此命令返回的值为零，你的计算节点不支持硬件加速，你必须配置libvirt的使用，而不是KVM的QEMU
vim /etc/nova/nova.conf
virt_type = qemu
启动服务并设置为自启动
systemctl enable libvirtd.service openstack-nova-compute.service
systemctl restart libvirtd.service openstack-nova-compute.service
验证操作
source admin-openrc.sh
nova service-list
nova image-list
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