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

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:venic8888@controller/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:venic8888@controller/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