传统公司OpenStack（t版）—neutron模块

Posted 2021-05-29 小白的成功进阶之路

传统公司部署OpenStack（t版）简易介绍（六）——neutron模块部署

• 一、ct 控制节点创建数据库neutron，并进行授权
• 二、c1、c2 节点（以c1为例）
• 三、ct 节点验证
• 总结

一、ct 控制节点创建数据库neutron，并进行授权

mysql -u root -p
CREATE DATABASE neutron;
GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' IDENTIFIED BY 'NEUTRON_DBPASS';
GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' IDENTIFIED BY 'NEUTRON_DBPASS';
flush privileges;
exit

#创建neutron用户，用于在keystone做认证
openstack user create --domain default --password NEUTRON_PASS neutron

#将neutron用户添加到service项目中拥有管理员权限
openstack role add --project service --user neutron admin

#创建network服务，服务类型为network
openstack service create --name neutron --description "OpenStack Networking" network

#注册API到neutron服务，给neutron服务关联端口，即添加endpoint
openstack endpoint create --region RegionOne network public http://ct:9696
openstack endpoint create --region RegionOne network internal http://ct:9696	
openstack endpoint create --region RegionOne network admin http://ct:9696

#安装提供者网络(桥接)

#ebtables包是用来管理iptables规则的
yum -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-linuxbridge ebtables conntrack-tools

#更改主配置文件neutron.conf
cp -a /etc/neutron/neutron.conf{,.bak}
grep -Ev '^$|#' /etc/neutron/neutron.conf.bak > /etc/neutron/neutron.conf
openstack-config --set /etc/neutron/neutron.conf database connection mysql+pymysql://neutron:NEUTRON_DBPASS@ct/neutron
openstack-config --set /etc/neutron/neutron.conf DEFAULT core_plugin ml2
openstack-config --set /etc/neutron/neutron.conf DEFAULT service_plugins router
openstack-config --set  /etc/neutron/neutron.conf DEFAULT allow_overlapping_ips true
openstack-config --set /etc/neutron/neutron.conf DEFAULT transport_url rabbit://openstack:RABBIT_PASS@ct
openstack-config --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/neutron/neutron.conf DEFAULT notify_nova_on_port_status_changes true
openstack-config --set /etc/neutron/neutron.conf DEFAULT notify_nova_on_port_data_changes true
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken www_authenticate_uri http://ct:5000
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_url http://ct:5000
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken memcached_servers ct:11211
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_type password
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken project_domain_name default
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken user_domain_name default
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken project_name service
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken username neutron
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken password NEUTRON_PASS
openstack-config --set /etc/neutron/neutron.conf oslo_concurrency lock_path /var/lib/neutron/tmp
openstack-config --set  /etc/neutron/neutron.conf nova  auth_url http://ct:5000
openstack-config --set  /etc/neutron/neutron.conf nova  auth_type password
openstack-config --set  /etc/neutron/neutron.conf nova  project_domain_name default
openstack-config --set  /etc/neutron/neutron.conf nova  user_domain_name default
openstack-config --set  /etc/neutron/neutron.conf nova  region_name RegionOne
openstack-config --set  /etc/neutron/neutron.conf nova  project_name service
openstack-config --set  /etc/neutron/neutron.conf nova  username nova
openstack-config --set  /etc/neutron/neutron.conf nova  password NOVA_PASS

#修改 ML2 plugin 配置文件 ml2_conf.ini
cp -a /etc/neutron/plugins/ml2/ml2_conf.ini{,.bak}
grep -Ev '^$|#' /etc/neutron/plugins/ml2/ml2_conf.ini.bak > /etc/neutron/plugins/ml2/ml2_conf.ini
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 type_drivers  flat,vlan,vxlan
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 tenant_network_types vxlan
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 mechanism_drivers  linuxbridge,l2population
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2 extension_drivers  port_security
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2_type_flat flat_networks  provider
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini ml2_type_vxlan vni_ranges 1:1000
openstack-config --set /etc/neutron/plugins/ml2/ml2_conf.ini securitygroup enable_ipset  true

#修改 linux bridge network provider 配置文件
cp -a /etc/neutron/plugins/ml2/linuxbridge_agent.ini{,.bak}
grep -Ev '^$|#' /etc/neutron/plugins/ml2/linuxbridge_agent.ini.bak > /etc/neutron/plugins/ml2/linuxbridge_agent.ini
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini linux_bridge physical_interface_mappings  provider:eth1		###eth1网卡名称
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan enable_vxlan  true
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan local_ip 192.168.100.10	##控制节点IP地址	
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan l2_population true
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini securitygroup enable_security_group  true
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini securitygroup firewall_driver  neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

#修改内核参数
echo 'net.bridge.bridge-nf-call-iptables=1' >> /etc/sysctl.conf
echo 'net.bridge.bridge-nf-call-ip6tables=1' >> /etc/sysctl.conf
modprobe br_netfilter	
sysctl -p

#配置Linux bridge接口驱动和外部网络网桥
cp -a /etc/neutron/l3_agent.ini{,.bak}
grep -Ev '^$|#' /etc/neutron/l3_agent.ini.bak > /etc/neutron/l3_agent.ini
openstack-config --set /etc/neutron/l3_agent.ini DEFAULT interface_driver linuxbridge

#修改dhcp_agent 配置文件
cp -a /etc/neutron/dhcp_agent.ini{,.bak}
grep -Ev '^$|#' /etc/neutron/dhcp_agent.ini.bak > /etc/neutron/dhcp_agent.ini 
openstack-config --set /etc/neutron/dhcp_agent.ini DEFAULT interface_driver linuxbridge
openstack-config --set /etc/neutron/dhcp_agent.ini DEFAULT dhcp_driver neutron.agent.linux.dhcp.Dnsmasq
openstack-config --set /etc/neutron/dhcp_agent.ini DEFAULT enable_isolated_metadata true

#修改dhcp_agent的配置文件内容
cat dhcp_agent.ini
[DEFAULT]
interface_driver = linuxbridge	#指定默认接口驱动为linux网桥
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq	#指定DHCP驱动
enable_isolated_metadata = true			#开启iso元数据

#配置元数据代理、用于配置桥接与自服务网络的通用配置
cp -a /etc/neutron/metadata_agent.ini{,.bak}
grep -Ev '^$|#' /etc/neutron/metadata_agent.ini.bak > /etc/neutron/metadata_agent.ini
openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT nova_metadata_host ct
openstack-config --set /etc/neutron/metadata_agent.ini DEFAULT metadata_proxy_shared_secret METADATA_SECRET

#配置文件内容
cat metadata_agent.ini
[DEFAULT]
nova_metadata_host = ct
metadata_proxy_shared_secret = METADATA_SECRET
[cache]

#修改nova配置文件，用于neutron交互
openstack-config --set /etc/nova/nova.conf neutron url http://ct:9696
openstack-config --set /etc/nova/nova.conf neutron auth_url http://ct:5000
openstack-config --set /etc/nova/nova.conf neutron auth_type password
openstack-config --set /etc/nova/nova.conf neutron project_domain_name default
openstack-config --set /etc/nova/nova.conf neutron user_domain_name default
openstack-config --set /etc/nova/nova.conf neutron region_name RegionOne
openstack-config --set /etc/nova/nova.conf neutron project_name service
openstack-config --set /etc/nova/nova.conf neutron username neutron
openstack-config --set /etc/nova/nova.conf neutron password NEUTRON_PASS
openstack-config --set /etc/nova/nova.conf neutron service_metadata_proxy true
openstack-config --set /etc/nova/nova.conf neutron metadata_proxy_shared_secret METADATA_SECRET

#创建ML2插件文件符号连接
#网络服务初始化脚本需要/etc/neutron/plugin.ini指向ML2插件配置文件的符号链接
ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini

#初始化数据库
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

#重启计算节点nova-api服务
systemctl restart openstack-nova-api.service

#开启neutron服务、设置开机自启动
systemctl enable neutron-server.service \\
neutron-linuxbridge-agent.service neutron-dhcp-agent.service \\
neutron-metadata-agent.service
systemctl start neutron-server.service \\
neutron-linuxbridge-agent.service neutron-dhcp-agent.service \\
neutron-metadata-agent.service
netstat -anutp |grep 9696

#因为配置了第三层L3网络服务、所以需要启动第三层服务
systemctl enable neutron-l3-agent.service
systemctl restart neutron-l3-agent.service

二、c1、c2 节点（以c1为例）

yum -y install openstack-neutron-linuxbridge ebtables ipset conntrack-tools

#修改neutron.conf文件
cp -a /etc/neutron/neutron.conf{,.bak}
grep -Ev '^$|#' /etc/neutron/neutron.conf.bak > /etc/neutron/neutron.conf
openstack-config --set /etc/neutron/neutron.conf DEFAULT transport_url rabbit://openstack:RABBIT_PASS@ct
openstack-config --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken www_authenticate_uri http://ct:5000
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_url http://ct:5000
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken memcached_servers ct:11211
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_type password
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken project_domain_name default
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken user_domain_name default
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken project_name service
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken username neutron
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken password NEUTRON_PASS
openstack-config --set /etc/neutron/neutron.conf oslo_concurrency lock_path /var/lib/neutron/tmp

#配置Linux网桥代理
cp -a /etc/neutron/plugins/ml2/linuxbridge_agent.ini{,.bak}
grep -Ev '^$|#' /etc/neutron/plugins/ml2/linuxbridge_agent.ini.bak > /etc/neutron/plugins/ml2/linuxbridge_agent.ini
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini linux_bridge physical_interface_mappings  provider:eth1
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan enable_vxlan  true
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan local_ip 192.168.100.20
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan l2_population true
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini securitygroup enable_security_group  true
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini securitygroup firewall_driver  neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

#修改内核
echo 'net.bridge.bridge-nf-call-iptables=1' >> /etc/sysctl.conf		#允许虚拟机的数据通过物理机出去
echo 'net.bridge.bridge-nf-call-ip6tables=1' >> /etc/sysctl.conf
modprobe br_netfilter		#modprobe：用于向内核中加载模块或者从内核中移除模块。modprobe -r 表示移除
sysctl -p

#修改nova.conf配置文件
openstack-config --set /etc/nova/nova.conf neutron auth_url http://ct:5000
openstack-config --set /etc/nova/nova.conf neutron auth_type password
openstack-config --set /etc/nova/nova.conf neutron project_domain_name default
openstack-config --set /etc/nova/nova.conf neutron user_domain_name default
openstack-config --set /etc/nova/nova.conf neutron region_name RegionOne
openstack-config --set /etc/nova/nova.conf neutron project_name service
openstack-config --set /etc/nova/nova.conf neutron username neutron
openstack-config --set /etc/nova/nova.conf neutron password NEUTRON_PASS

#重启openstack-nova-compute服务，配置网络服务。
systemctl restart openstack-nova-compute.service ###重新启动计算节点上的Nova服务
 
#启动neutron网桥代理服务 设置开机自启动
systemctl enable neutron-linuxbridge-agent.service
systemctl start neutron-linuxbridge-agent.service

三、ct 节点验证

#验证服务组件
openstack extension list --network
openstack network agent list

总结

• 三个节点都需要配置neutron网络，以下为部署思路：
  • 配置neutron组件的用户、认证、endpoint
  • 设置提供者provider网络（这里是桥接模式）
    ① 配置二层网络
    ② 配置网桥（插件）
    ③ 优化内核
    ④ 配置网桥接口与外部对接
    ⑤ 修改DHCP配置（修改配置文件、代理）
    ⑥ 配置网桥与内部组件的配置（修改配置文件、代理）
    设置neutron与nova对接的配置
    其中C1、C2节点配置相同