OpenStack-train版安装之计算节点安装Nova（计算服务）、安装Neutron（组网服务）

安装Nova（计算服务）

1. 安装和配置

# yum install openstack-nova-compute -y

配置，修改配置文件/etc/nova/nova.conf，在对应分组【[组名]】下添加配置：
[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:RABBIT_PASS@controller
my_ip = 192.168.0.31
use_neutron = true
firewall_driver = nova.virt.firewall.NoopFirewallDriver
[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 = NOVA_PASS
[vnc]
enabled = true
server_listen = 0.0.0.0
server_proxyclient_address = $my_ip
novncproxy_base_url = http://192.168.0.11:6080/vnc_auto.html
[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 = PLACEMENT_PASS
[libvirt]
virt_type = qemu

设置开机启动并启动服务：

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

注意：如果创建实例出现超时问题，修改/etc/nova/nova.conf，重启openstack-nova-compute.service：
block_device_allocate_retries=300
block_device_allocate_retries_interval=5
block_device_creation_timeout=600

2. 验证
   状态是否正常（控制节点执行）：

# openstack compute service list --service nova-compute

添加计算节点（控制节点执行）：

# su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova

Nova状态检查（报403状态，安装Placement时00-placement-api.conf配置缺少）：

# nova-status upgrade check

3. 说明

• 详细说明参考官网：
  https://docs.openstack.org/nova/train/install/compute-install-rdo.html
• 本章节使用计算节点1（compute1）作为示例，其他计算节点只需要调整配置文件中的IP。

安装Neutron（组网服务）

1. 安装和配置

# yum install openstack-neutron-linuxbridge ebtables ipset -y

配置，修改配置文件/etc/neutron/neutron.conf，在对应分组【[组名]】下添加配置：
[DEFAULT]
transport_url = rabbit://openstack:RABBIT_PASS@controller
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 = neutron
password = NEUTRON_PASS
[oslo_concurrency]
lock_path = /var/lib/neutron/tmp

配置，修改配置文件/etc/neutron/plugins/ml2/linuxbridge_agent.ini，在对应分组【[组名]】下添加配置：
[linux_bridge]
physical_interface_mappings = provider:eno16777736,eno172_16_0:eno33554984
[vxlan]
enable_vxlan = true
local_ip = 192.168.0.31
l2_population = true
[securitygroup]
enable_security_group = true
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

配置，修改配置文件/etc/nova/nova.conf，在对应分组【[组名]】下添加配置：
[neutron]
auth_url = http://controller:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = NEUTRON_PASS

设置开机启动并启动服务：

# systemctl restart openstack-nova-compute.service

# systemctl enable neutron-linuxbridge-agent.service
# systemctl start neutron-linuxbridge-agent.service

2. 验证
   状态是否正常：

# openstack network agent list

3. 说明

• 详细说明参考官网：
  https://docs.openstack.org/neutron/train/install/compute-install-rdo.html
• 本章节使用计算节点1（compute1）作为示例，其他计算节点只需要调整配置文件中的IP。