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

[database]
connection = mysql://nova:toyo123@controller/nova

[DEFAULT]
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

[keystone_authtoken]
auth_uri = http://controller:5000/v2.0
identity_uri = http://controller:35357
admin_tenant_name = service
admin_user = nova
admin_password = Abcd1234

[glance]
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

[DEFAULT]
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

[keystone_authtoken]
auth_uri = http://controller:5000/v2.0
identity_uri = http://controller:35357
admin_tenant_name = service
admin_user = nova
admin_password = Abcd1234

[glance]
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

[libvirt]
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