中小企业openstack私有云布署实践12.2 网络Neutron-controller节点配置（办公网环境）

Posted 肖冲

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网络这一块推荐使用的是 Neutron--LinuxBirdge的Ha高可用，此高可用方案对Public作用不是很大，Public只用到DHCP，而Private则会用到L3 Agent，则此方案是有用的，但要关掉和牺牲一个L3 population的特性--抑制ARP报文广播。原因在下文的配置文件有说明，并因我们布的是私有云，不像公有云的多租户private网络数量之大，这个特性牺牲在中小私有云是可接受的。
 
一、首先登录controller1创建neutron数据库，并赋于远程和本地访问的权限。
mysql -u root -p
CREATE DATABASE neutron;
GRANT ALL PRIVILEGES ON neutron.* TO ‘neutron‘@‘localhost‘  IDENTIFIED BY ‘venic8888‘;
GRANT ALL PRIVILEGES ON neutron.* TO ‘neutron‘@‘%‘  IDENTIFIED BY ‘venic8888‘;
flush PRIVILEGES;
 
二、身份认证调用
其中一台controller创建身份认证调用
source admin-openrc.sh
 
openstack user create --domain default --password-prompt neutron
User Password:
Repeat User Password:
+-----------+----------------------------------+
| Field     | Value                            |
+-----------+----------------------------------+
| domain_id | default                          |
| enabled   | True                             |
| id        | b20a6692f77b4258926881bf831eb683 |
| name      | neutron                          |
+-----------+----------------------------------+
 
 openstack role add --project service --user neutron admin
 
 openstack service create --name neutron --description "OpenStack Networking" network
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Networking             |
| enabled     | True                             |
| id          | f71529314dab4a4d8eca427e701d209e |
| name        | neutron                          |
| type        | network                          |
+-------------+----------------------------------+
 
 openstack endpoint create --region RegionOne network public http://controller:9696
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 85d80a6d02fc4b7683f611d7fc1493a3 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | f71529314dab4a4d8eca427e701d209e |
| service_name | neutron                          |
| service_type | network                          |
| url          | http://controller:9696           |
+--------------+----------------------------------+
 
 openstack endpoint create --region RegionOne network internal http://controller:9696
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 09753b537ac74422a68d2d791cf3714f |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | f71529314dab4a4d8eca427e701d209e |
| service_name | neutron                          |
| service_type | network                          |
| url          | http://controller:9696           |
+--------------+----------------------------------+
 
 openstack endpoint create --region RegionOne network admin http://controller:9696
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 1ee14289c9374dffb5db92a5c112fc4e |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | f71529314dab4a4d8eca427e701d209e |
| service_name | neutron                          |
| service_type | network                          |
| url          | http://controller:9696           |
+--------------+----------------------------------+
 
三、下载安装neutron组件
1公有网络配置+私有网络配置
2台controller配置
# yum install openstack-neutron openstack-neutron-ml2  openstack-neutron-linuxbridge python-neutronclient ebtables ipset -y
 
修改新增内核参数：
vi  /etc/sysctl.conf
net.ipv4.ip_forward=1
net.ipv4.conf.default.rp_filter=0
net.ipv4.conf.all.rp_filter=0
 
sysctl -p
 
配置neutron.conf服务
 
在controller1
vi /etc/neutron/neutron.conf
 
[DEFAULT]
core_plugin = ml2
service_plugins = router
allow_overlapping_ips = True
rpc_backend = rabbit
auth_strategy = keystone
 
bind_host = 10.40.42.1
bind_port = 9696
 
 
l3_ha = True
max_l3_agents_per_router = 3
min_l3_agents_per_router = 2
allow_automatic_l3agent_failover = True
 
 
dhcp_agents_per_network = 2
 
notify_nova_on_port_status_changes = True
notify_nova_on_port_data_changes = True
nova_url = http://controller:8774/v2
 
verbose = True
 
[database]
connection = mysql://neutron:[email protected]/neutron
 
[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = neutron
password = neutron
 
[nova]
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
region_name = RegionOne
project_name = service
username = nova
password = nova
 
[oslo_messaging_rabbit]
rabbit_host=controller
rabbit_userid = openstack
rabbit_password = openstack
rabbit_retry_interval=1
rabbit_retry_backoff=2
rabbit_max_retries=0
rabbit_durable_queues=true
rabbit_ha_queues=true
 
[oslo_concurrency]
lock_path = /var/lib/neutron/tmp
 
 
[quotas]
quota_port = 10000
 
 
 
在kxcontroller2
vi /etc/neutron/neutron.conf
 
[DEFAULT]
core_plugin = ml2
service_plugins = router
allow_overlapping_ips = True
rpc_backend = rabbit
auth_strategy = keystone
 
bind_host = 10.40.42.2
bind_port = 9696
 
 
l3_ha = True
max_l3_agents_per_router = 3
min_l3_agents_per_router = 2
allow_automatic_l3agent_failover = True
 
 
dhcp_agents_per_network = 2
 
notify_nova_on_port_status_changes = True
notify_nova_on_port_data_changes = True
nova_url = http://controller:8774/v2
 
verbose = True
 
[database]
connection = mysql://neutron:[email protected]/neutron
 
[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = neutron
password = neutron
 
[nova]
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
region_name = RegionOne
project_name = service
username = nova
password = nova
 
[oslo_messaging_rabbit]
rabbit_host=controller
rabbit_userid = openstack
rabbit_password = openstack
rabbit_retry_interval=1
rabbit_retry_backoff=2
rabbit_max_retries=0
rabbit_durable_queues=true
rabbit_ha_queues=true
 
[oslo_concurrency]
lock_path = /var/lib/neutron/tmp
 
 
[quotas]
quota_port = 10000
 
 
 
 
 
2台controller上配置一样
vi  /etc/neutron/plugins/ml2/ml2_conf.ini
 
[ml2]
type_drivers = flat,vlan,vxlan
tenant_network_types = vxlan
extension_drivers = port_security
mechanism_drivers = linuxbridge
 
[ml2_type_flat]
flat_networks = public
 
[ml2_type_vxlan]
vni_ranges = 1:10000
vxlan_group = 239.2.1.1
 
[securitygroup]
enable_ipset = True
 
配置ML2服务配置，跟单服务的自由版本的配法不同，这次使用的l3 HA，不用使用l2_population机制，因有BGU还没修复（切换时，虽然publick的VRRP切换成功。private网段的网关不会触发更新，VM虚拟是PING不通private的网关）
 
在controller1上
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini
 
[linux_bridge]
physical_interface_mappings = public:bond0
 
[vxlan]
enable_vxlan = True
local_ip = 10.40.42.1
l2_population = False
 
[agent]
prevent_arp_spoofing = True
 
[securitygroup]
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
 
 
在controller2上
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini
 
[linux_bridge]
physical_interface_mappings = public:bond0
 
[vxlan]
enable_vxlan = True
local_ip = 10.40.42.2
l2_population = False
 
[agent]
prevent_arp_spoofing = True
 
[securitygroup]
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
 
 
 
配置L3-agent服务
 
2台kxcontroller配置一样
vi /etc/neutron/l3_agent.ini
 
[DEFAULT]
interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver
external_network_bridge =
verbose = True
router_delete_namespaces = True
agent_mode = legacy
 
 
配置DHCP服务
 
2台controller配置一样

vi /etc/neutron/dhcp_agent.ini

 
[DEFAULT]
interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
enable_isolated_metadata = True
verbose = True
use_namespaces = True
dhcp_delete_namespaces = True
 
dnsmasq_config_file = /etc/neutron/dnsmasq-neutron.conf
 
额外配置DHCP MTU配置
2台controller配置一样
vi /etc/neutron/dnsmasq-neutron.conf
 
dhcp-option-force=26,1450
 
配置metadata agent
2台controller配置一样
vi /etc/neutron/metadata_agent.ini
[DEFAULT]
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_region = RegionOne
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = neutron
password = neutron
 
nova_metadata_ip = controller
metadata_proxy_shared_secret = venicchina
 
 
新加配置nova与neutron关联-----在11节中我就有提到的那个紫色的配置，这里再提一次
vi /etc/nova/nova.conf
 
[neutron]
url = http://controller:9696
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
region_name = RegionOne
project_name = service
username = neutron
password = neutron
 
service_metadata_proxy = True
metadata_proxy_shared_secret = venicchina
 
 
 
验证：
1、controller的软链接
ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini
 
2、其中一台controller同步数据
# su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf  --config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron
 
3、两台controller重启nova api
# systemctl restart openstack-nova-api.service
 
4、两台controller开启网络服务，加入开机自启
# systemctl enable neutron-server.service  neutron-linuxbridge-agent.service neutron-dhcp-agent.service  neutron-metadata-agent.service neutron-l3-agent.service
# systemctl start neutron-server.service  neutron-linuxbridge-agent.service neutron-dhcp-agent.service  neutron-metadata-agent.service neutron-l3-agent.service
 

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