OpenStack实践系列⑤网络服务Neutron

Posted 2020-09-21 reblue520

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3.8 Neturn 服务部署

注册neutron服务

[[email protected] ~]# source admin-openrc.sh
[[email protected] ~]# openstack service create --name neutron --description "OpenStack Networking" network
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Networking |
| enabled | True |
| id | 5ab9dbad533f409eb5ef4682f937c1b1 |
| name | neutron |
| type | network |
+-------------+----------------------------------+

[[email protected] ~]# openstack endpoint create --region RegionOne network public http://192.168.3.199:9696
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | b1b8f5d4d51c408cbea79f2829d99bbc |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 5ab9dbad533f409eb5ef4682f937c1b1 |
| service_name | neutron |
| service_type | network |
| url | http://192.168.3.199:9696 |
+--------------+----------------------------------+

[[email protected] ~]# openstack endpoint create --region RegionOne network internal http://192.168.3.199:9696
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | d35182f4e62f49c88c25589e3ae436cb |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 5ab9dbad533f409eb5ef4682f937c1b1 |
| service_name | neutron |
| service_type | network |
| url | http://192.168.3.199:9696 |
+--------------+----------------------------------+

[[email protected] ~]# openstack endpoint create --region RegionOne network admin http://192.168.3.199:9696
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 0c1cbd066efc44c6b7e48e0d664e69d6 |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 5ab9dbad533f409eb5ef4682f937c1b1 |
| service_name | neutron |
| service_type | network |
| url | http://192.168.3.199:9696 |
+--------------+----------------------------------+

创建neutron用户，并添加大service项目，给予admin权限
[[email protected] ~]# openstack user create --domain default --password=neutron neutron
+-----------+----------------------------------+
| Field | Value |
+-----------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | 5d2a9f0420c14fe9a8c1eeaaf1c70738 |
| name | neutron |
+-----------+----------------------------------+
[[email protected] ~]# openstack role add --project service --user neutron admin

编辑/etc/neutron/neutron.conf文件，并完成以下操作

在[database]部分，配置数据库访问

[database]
...
connection = mysql://neutron:[email protected]:3306/neutron
在[DEFAULT]部分，使模块化第2层（ML2）插件，路由器服务，和重叠的IP地址

[DEFAULT]
...
core_plugin = ml2
service_plugins = router # 服务插件为router

在[DEFAULT]和[oslo_messaging_rabbit]部分，配置RabbitMQ的消息队列访问

[DEFAULT]
...
rpc_backend = rabbit
state_path = /var/lib/neutron

[oslo_messaging_rabbit]
...
rabbit_host = 192.168.3.199
rabbit_port = 5672
rabbit_userid = openstack
rabbit_password = openstack
在[DEFAULT]和[keystone_authtoken]部分，配置认证服务的访问（注释或删除在[keystone_authtoken]任何其他选项。）

[DEFAULT]
...
auth_strategy = keystone

[keystone_authtoken]
...
auth_uri = http://192.168.3.199:5000
auth_url = http://192.168.3.199:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = neutron
password = neutron
在[DEFAULT]和[nova]部分，配置计算网络通知的网络拓扑变化

[DEFAULT]
...
notify_nova_on_port_status_changes = True # 端口改变需通知nova
notify_nova_on_port_data_changes = True
nova_url = http://192.168.3.199:8774/v2

[nova]
...
auth_url = http://192.168.3.199:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
region_name = RegionOne
project_name = service
username = nova
password = nova
在[oslo_concurrency]部分，配置锁路径

[oslo_concurrency]
...
lock_path = $state_path/lock

配置结果

[[email protected] neutron]# grep -n ‘^[a-z]‘ neutron.conf 
20:state_path = /var/lib/neutron
60:core_plugin = ml2
77:service_plugins = router
92:auth_strategy = keystone
360:notify_nova_on_port_status_changes = True
364:notify_nova_on_port_data_changes = True
367:nova_url = http://192.168.3.199:8774/v2
573:rpc_backend=rabbit
721:auth_uri = http://192.168.3.199:5000
722:auth_url = http://192.168.3.199:35357
723:auth_plugin = password
724:project_domain_id = default
725:user_domain_id = default
726:project_name = service
727:username = neutron
728:password = neutron
741:connection = mysql://neutron:[email protected]:3306/neutron
784:auth_url = http://192.168.3.199:35357
785:auth_plugin = password
786:project_domain_id = default
787:user_domain_id = default
788:region_name = RegionOne
789:project_name = service
790:username = nova
791:password = nova
826:lock_path = $state_path/lock
964:rabbit_host = 192.168.3.199
965:rabbit_port = 5672
966:rabbit_userid = openstack
967:rabbit_password = openstack

编辑/etc/neutron/plugins/ml2/ml2_conf.ini文件，并完成以下操作:

在[ML2]部分，配置VLAN和VXLAN各种网络驱动

[ml2]
...
type_drivers = flat,vlan,gre,vxlan,geneve

在[ML2]部分中，启用网络自助服务
tenant_network_types = vlan,gre,vxlan,geneve

在[ML2]部分中，启用网络自助服务
mechanism_drivers = openvswitch,linuxbridge

在[ML2]部分中，启用端口安全扩展驱动程序
extension_drivers = port_security

在[ml2_type_flat]部分，配置提供虚拟网络作为一个平面网络

[ml2_type_flat]
...
flat_networks = physnet1 使用单一扁平网络（和host一个网络）

在[securitygroup]部分，使IPSET增加安全组规则

[securitygroup]
...
enable_ipset = True

[[email protected] neutron]# grep "^[a-Z]" /etc/neutron/plugins/ml2/ml2_conf.ini
type_drivers = flat,vlan,gre,vxlan,geneve
tenant_network_types = vlan,gre,vxlan,geneve
mechanism_drivers = openvswitch,linuxbridge
extension_drivers = port_security
flat_networks = physnet1
enable_ipset = True

配置Linux桥接代理在Linux桥接代理生成的第2层（桥接和交换）为实例虚拟网络的基础设施和处理安全组。

编辑/etc/neutron/plugins/ml2/linuxbridge_agent.ini文件中，并完成以下操作:

在[linux_bridge]部分，提供商虚拟网络和物理网络接口

[linux_bridge]
...

physical_interface_mappings = physnet1:eth0

在[VXLAN]部分中，关闭VXLAN网络（如果是三层网络使用vxlan参考OpenStack指南并验证）

[vxlan]
...
enable_vxlan = false
在[securitygroup]部分，启用安全组和配置Linux桥iptables防火墙驱动程序

[securitygroup]
...
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

在[agent]部分，启用防arp欺骗

[agent]
...
prevent_arp_spoofing = True

配置结果：
[[email protected] neutron]# grep -n "^[a-Z]" /etc/neutron/plugins/ml2/linuxbridge_agent.ini
9:physical_interface_mappings = physnet1:eth0
16:enable_vxlan = false
51:prevent_arp_spoofing = True
59:firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
64:enable_security_group = True

修改dhcp的配置文件
编辑/etc/neutron/dhcp_agent.ini文件，并完成以下操作:

在[DEFAULT]部分，配置Linux桥接口驱动程序，DHCP的dnsmasq驱动程序，并启用隔离的元数据，以便对供应商网络的实例可以通过网络访问元数据

[DEFAULT]
...
interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
enable_isolated_metadata = True

[[email protected] neutron]# grep -n "^[a-Z]" /etc/neutron/dhcp_agent.ini
16:interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver
34:dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
55:enable_isolated_metadata = True

修改metadata_agent.ini配置文件
元数据代理提供配置信息，如凭据实例,编辑/etc/neutron/metadata_agent.ini文件，并完成以下操作:

在[DEFAULT]部分，配置元数据主机和共享的密钥

[DEFAULT]
...
auth_uri = http://192.168.3.199:5000
auth_url = http://192.168.3.199:35357
auth_region = RegionOne
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = neutron
password = neutron

nova_metadata_ip = 192.168.3.199
metadata_proxy_shared_secret = neutron

配管结果

[[email protected] neutron]# grep -n ‘^[a-z]‘ /etc/neutron/metadata_agent.ini
4:auth_uri = http://192.168.3.199:5000
5:auth_url = http://192.168.3.199:35357
6:auth_region = RegionOne
7:auth_plugin = password
8:project_domain_id = default
9:user_domain_id = default
10:project_name = service
11:username = neutron
12:password = neutron
29:nova_metadata_ip = 192.168.3.199
52:metadata_proxy_shared_secret = neutron

配置控制节点使用网络，编辑/etc/nova/nova.conf文件并执行以下操作:
在控制节点的nova中添加关于neutron的配置，添加如下内容到neutron模块即可

在[neutron]部分，配置访问参数，启用metadata元数据代理，并配置密钥

[neutron]
...

url = http://192.168.3.199:9696
auth_url = http://192.168.3.199:35357
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 = neutron

创建ml2的软连接
[[email protected] neutron]# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini

同步neutron数据库,并检查结果

[[email protected] neutron]# 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

MariaDB [(none)]> use neutron
Database changed
MariaDB [neutron]> show tables;
+-----------------------------------------+
| Tables_in_neutron |
+-----------------------------------------+
| address_scopes |
| agents |
| alembic_version |
| allowedaddresspairs |
| arista_provisioned_nets |
| arista_provisioned_tenants |
| arista_provisioned_vms |
| brocadenetworks |
| brocadeports |
| cisco_csr_identifier_map |
| cisco_hosting_devices |
| cisco_ml2_apic_contracts |
| cisco_ml2_apic_host_links |
| cisco_ml2_apic_names |
| cisco_ml2_n1kv_network_bindings |
| cisco_ml2_n1kv_network_profiles |
| cisco_ml2_n1kv_policy_profiles |
| cisco_ml2_n1kv_port_bindings |
| cisco_ml2_n1kv_profile_bindings |
| cisco_ml2_n1kv_vlan_allocations |
| cisco_ml2_n1kv_vxlan_allocations |
| cisco_ml2_nexus_nve |
| cisco_ml2_nexusport_bindings |
| cisco_port_mappings |
| cisco_router_mappings |
| consistencyhashes |
| csnat_l3_agent_bindings |
| default_security_group |
| dnsnameservers |
| dvr_host_macs |
| embrane_pool_port |
| externalnetworks |
| extradhcpopts |
| firewall_policies |
| firewall_rules |
| firewalls |
| flavors |
| flavorserviceprofilebindings |
| floatingips |
| ha_router_agent_port_bindings |
| ha_router_networks |
| ha_router_vrid_allocations |
| healthmonitors |
| ikepolicies |
| ipallocationpools |
| ipallocations |
| ipamallocationpools |
| ipamallocations |
| ipamavailabilityranges |
| ipamsubnets |
| ipavailabilityranges |
| ipsec_site_connections |
| ipsecpeercidrs |
| ipsecpolicies |
| lsn |
| lsn_port |
| maclearningstates |
| members |
| meteringlabelrules |
| meteringlabels |
| ml2_brocadenetworks |
| ml2_brocadeports |
| ml2_dvr_port_bindings |
| ml2_flat_allocations |
| ml2_geneve_allocations |
| ml2_geneve_endpoints |
| ml2_gre_allocations |
| ml2_gre_endpoints |
| ml2_network_segments |
| ml2_nexus_vxlan_allocations |
| ml2_nexus_vxlan_mcast_groups |
| ml2_port_binding_levels |
| ml2_port_bindings |
| ml2_ucsm_port_profiles |
| ml2_vlan_allocations |
| ml2_vxlan_allocations |
| ml2_vxlan_endpoints |
| multi_provider_networks |
| networkconnections |
| networkdhcpagentbindings |
| networkgatewaydevicereferences |
| networkgatewaydevices |
| networkgateways |
| networkqueuemappings |
| networkrbacs |
| networks |
| networksecuritybindings |
| neutron_nsx_network_mappings |
| neutron_nsx_port_mappings |
| neutron_nsx_router_mappings |
| neutron_nsx_security_group_mappings |
| nexthops |
| nsxv_edge_dhcp_static_bindings |
| nsxv_edge_vnic_bindings |
| nsxv_firewall_rule_bindings |
| nsxv_internal_edges |
| nsxv_internal_networks |
| nsxv_port_index_mappings |
| nsxv_port_vnic_mappings |
| nsxv_router_bindings |
| nsxv_router_ext_attributes |
| nsxv_rule_mappings |
| nsxv_security_group_section_mappings |
| nsxv_spoofguard_policy_network_mappings |
| nsxv_tz_network_bindings |
| nsxv_vdr_dhcp_bindings |
| nuage_net_partition_router_mapping |
| nuage_net_partitions |
| nuage_provider_net_bindings |
| nuage_subnet_l2dom_mapping |
| ofcfiltermappings |
| ofcnetworkmappings |
| ofcportmappings |
| ofcroutermappings |
| ofctenantmappings |
| packetfilters |
| poolloadbalanceragentbindings |
| poolmonitorassociations |
| pools |
| poolstatisticss |
| portbindingports |
| portinfos |
| portqueuemappings |
| ports |
| portsecuritybindings |
| providerresourceassociations |
| qos_bandwidth_limit_rules |
| qos_network_policy_bindings |
| qos_policies |
| qos_port_policy_bindings |
| qosqueues |
| quotas |
| quotausages |
| reservations |
| resourcedeltas |
| router_extra_attributes |
| routerl3agentbindings |
| routerports |
| routerproviders |
| routerroutes |
| routerrules |
| routers |
| securitygroupportbindings |
| securitygrouprules |
| securitygroups |
| serviceprofiles |
| sessionpersistences |
| subnetpoolprefixes |
| subnetpools |
| subnetroutes |
| subnets |
| tz_network_bindings |
| vcns_router_bindings |
| vips |
| vpnservices |
+-----------------------------------------+
155 rows in set (0.08 sec)

重启nova-api，并启动neutron服务

[[email protected] ~]# systemctl restart openstack-nova-api
[[email protected] ~]# systemctl enable neutron-server.service neutron-linuxbridge-agent.service neutron-dhcp-agent.service neutron-metadata-agent.service

[[email protected] ~]# systemctl start neutron-server.service neutron-linuxbridge-agent.service neutron-dhcp-agent.service neutron-metadata-agent.service

检查neutron-agent结果

[[email protected] ~]# neutron agent-list
+--------------------------------------+--------------------+---------------------+-------+----------------+---------------------------+
| id | agent_type | host | alive | admin_state_up | binary |
+--------------------------------------+--------------------+---------------------+-------+----------------+---------------------------+
| 065dc30e-610f-44d2-b169-29bc33a15e31 | Metadata agent | node1.chinasoft.com | :-) | True | neutron-metadata-agent |
| 46cab8fd-571b-481a-9b69-655c06ff3b26 | DHCP agent | node1.chinasoft.com | :-) | True | neutron-dhcp-agent |
| 5ae87a79-b59a-41b4-9294-7f0bca70e611 | Linux bridge agent | node1.chinasoft.com | :-) | True | neutron-linuxbridge-agent |
+--------------------------------------+--------------------+---------------------+-------+----------------+---------------------------+

开始部署neutron的计算节点，在这里直接scp过去，不需要做任何更改
[[email protected] neutron]# scp /etc/neutron/neutron.conf 192.168.3.200:/etc/neutron/

修改计算节点的nova配置，添加如下内容到neutron模块即可

[neutron]
...
url = http://192.168.3.199:9696
auth_url = http://192.168.3.199:35357
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 = neutron

从控制节点复制linuxbridge_agent.ini和到ml2_conf.ini计算节点，文件无需更改
如果网卡名称不是eth0
需要修改linuxbridge_agent.ini的physical_interface_mappings = physnet1:ens37

[[email protected] neutron]# scp /etc/neutron/plugins/ml2/linuxbridge_agent.ini 192.168.3.200:/etc/neutron/plugins/ml2/
[[email protected] neutron]# scp /etc/neutron/plugins/ml2/ml2_conf.ini 192.168.3.200:/etc/neutron/plugins/ml2/

在计算节点创建ml2软连接

[[email protected] nova]# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini
[[email protected] nova]# ls -l /etc/neutron/plugin.ini 
lrwxrwxrwx 1 root root 37 Apr 26 17:22 /etc/neutron/plugin.ini -> /etc/neutron/plugins/ml2/ml2_conf.ini

重启计算节点的nova-computer
[[email protected] nova]# systemctl restart openstack-nova-compute.service

计算机点上启动linuxbridge_agent服务

[[email protected] nova]# systemctl enable neutron-linuxbridge-agent.service
Created symlink from /etc/systemd/system/multi-user.target.wants/neutron-linuxbridge-agent.service to /usr/lib/systemd/system/neutron-linuxbridge-agent.service.
[[email protected] nova]# systemctl start neutron-linuxbridge-agent.service

检查neutron的结果，有四个（控制节点一个，计算节点两个）结果代表正确

[[email protected] ~]# neutron agent-list
+--------------------------------------+--------------------+---------------------+-------+----------------+---------------------------+
| id | agent_type | host | alive | admin_state_up | binary |
+--------------------------------------+--------------------+---------------------+-------+----------------+---------------------------+
| 065dc30e-610f-44d2-b169-29bc33a15e31 | Metadata agent | node1.chinasoft.com | :-) | True | neutron-metadata-agent |
| 46cab8fd-571b-481a-9b69-655c06ff3b26 | DHCP agent | node1.chinasoft.com | :-) | True | neutron-dhcp-agent |
| 5ae87a79-b59a-41b4-9294-7f0bca70e611 | Linux bridge agent | node1.chinasoft.com | :-) | True | neutron-linuxbridge-agent |
| a1e8aeea-d564-45f7-bd8f-70bb8d61c64e | Linux bridge agent | node2.chinasoft.com | :-) | True | neutron-linuxbridge-agent |
+--------------------------------------+--------------------+---------------------+-------+----------------+---------------------------+

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