目录
Openstack-Mitaka 高可用之 概述
Openstack-Mitaka 高可用之 环境初始化
Openstack-Mitaka 高可用之 Mariadb-Galera集群部署
Openstack-Mitaka 高可用之 Rabbitmq-server 集群部署
Openstack-Mitaka 高可用之 memcache
Openstack-Mitaka 高可用之 Pacemaker+corosync+pcs高可用集群
Openstack-Mitaka 高可用之 认证服务（keystone）
OpenStack-Mitaka 高可用之 镜像服务(glance)
Openstack-Mitaka 高可用之 计算服务（Nova）
Openstack-Mitaka 高可用之 网络服务（Neutron）
Openstack-Mitaka 高可用之 Dashboard
Openstack-Mitaka 高可用之 启动一个实例
Openstack-Mitaka 高可用之 测试
Openstack neutron 简介
Openstack Networking（neutron），允许创建、插入接口设备，这些设备由其他openstack服务管理。
neutron包含的组件：
（1）neutron-server
接收和路由APi请求到合适的openstack网络插件，以达到预想的目的。
（2）openstack网络插件和代理
插拔端口，创建网络和子网，以及提供IP地址，这些插件和代理依赖供应商和技术而不同。例如：Linux Bridge、 Open vSwitch
（3）消息队列
大多数的openstack networking安装都会用到，用于在neutron-server和各种各样的代理进程间路由信息。也为某些特定的插件扮演数据库的角色
openstack网络主要和openstack计算交互，以提供网络连接到它的实例。
安装并配置控制节点
以下操作在控制节点：
首先创建neutron库 [root@controller1 ~]# mysql -ugalera -pgalera -h 192.168.0.10 MariaDB [(none)]> CREATE DATABASE neutron; Query OK, 1 row affected (0.09 sec) MariaDB [(none)]> GRANT ALL PRIVILEGES ON neutron.* TO ‘neutron‘@‘localhost‘ IDENTIFIED BY ‘neutron‘; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> GRANT ALL PRIVILEGES ON neutron.* TO ‘neutron‘@‘%‘ IDENTIFIED BY ‘neutron‘; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> flush privileges; Query OK, 0 rows affected (0.01 sec) MariaDB [(none)]> Bye
创建服务证书：
[root@controller1 ~]# . admin-openrc [root@controller1 ~]# openstack user create --domain default --password-prompt neutron #密码为 neutron [root@controller1 ~]# openstack role add --project service --user neutron admin [root@controller1 ~]# openstack service create --name neutron --description "OpenStack Networking" network
创建网络服务API端点：
[root@controller1 ~]# openstack endpoint create --region RegionOne network public http://controller:9696 [root@controller1 ~]# openstack endpoint create --region RegionOne network internal http://controller:9696 [root@controller1 ~]# openstack endpoint create --region RegionOne network admin http://controller:9696
配置网络选项：
这里提供了两种网络选项
（1）只支持实例连接到公有网络（外部网络）。没有私有网络（个人网络），路由器以及浮动IP地址。只有admin或者其他特权用户才可以管理公有网络。
（2）选项2在选项1的基础上多了layer-3服务，支持实例连接到私有网络。demo或者其他没有特权的用户可以管理自己的私有网络，包含连接到公网和私网的路由器管理。另外，浮动IP地址可以让实例使用私有网络连接到外部网络，这里的外部指物理网络，例如互联网。
这里，使用选项2来构建openstack网络，如果选项2配置完成，选项1也就会了。
Openstack 私有网络配置
安装组件：
三个controller节点都需要安装：
# yum install openstack-neutron openstack-neutron-ml2 openstack-neutron-linuxbridge ebtables -y
配置服务组件：
Networking服务器组件配置包括：数据库、认证机制、消息队列、拓扑变化通知和插件
主要配置如下几个文件：
[root@controller1 ~]# cd /etc/neutron/ [root@controller1 neutron]# ll neutron.conf plugins/ml2/ml2_conf.ini plugins/ml2/linuxbridge_agent.ini l3_agent.ini dhcp_agent.ini metadata_agent.ini -rw-r----- 1 root neutron 8741 Dec 3 19:26 dhcp_agent.ini -rw-r----- 1 root neutron 64171 Dec 3 19:23 neutron.conf -rw-r----- 1 root neutron 8490 Dec 3 19:25 plugins/ml2/linuxbridge_agent.ini -rw-r----- 1 root neutron 8886 Dec 3 19:25 plugins/ml2/ml2_conf.ini -rw-r----- 1 root neutron 11215 Dec 3 19:42 l3_agent.ini -rw-r----- 1 root neutron 7089 Dec 3 19:42 metadata_agent.ini neutron.conf 配置如下： [DEFAULT] core_plugin = ml2 service_plugins = router allow_overlapping_ips = True transport_url = rabbit://openstack:openstack@controller1,openstack:openstack@controller2,openstack:openstack@controller3 auth_strategy = keystone notify_nova_on_port_status_changes = True notify_nova_on_port_data_changes = True bind_host = 192.168.0.11 # 蓝色部分为dhcp和router高可用设置 dhcp_agents_per_network = 3 l3_ha = true max_l3_agents_per_router = 3 min_l3_agents_per_router = 2 l3_ha_net_cidr = 169.254.192.0/18 … [database] connection = mysql+pymysql://neutron:neutron@controller/neutron [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:35357 neutron.conf:memcached_servers = controller1:11211,controller2:11211,controller3:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = neutron password = neutron … [nova] auth_url = http://controller:35357 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = nova password = nova [oslo_concurrency] lock_path = /var/lib/neutron/tmp plugins/ml2/ml2_conf.ini 配置如下： … [ml2] type_drivers = flat,vlan,vxlan tenant_network_types = vxlan mechanism_drivers = linuxbridge,l2population extension_drivers = port_security [ml2_type_flat] flat_networks = provider … [ml2_type_vxlan] vni_ranges = 1:1000 [securitygroup] enable_ipset = True plugins/ml2/linuxbridge_agent.ini 配置如下： [DEFAULT] [agent] [linux_bridge] physical_interface_mappings = provider:eno33554992 # 外网网卡名 [securitygroup] enable_security_group = True firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver [vxlan] enable_vxlan = True local_ip = 192.168.0.11 # 这里使用的管理地址，做vxlan隧道，每个节点填写本地管理地址 l2_population = True l3_agent.ini配置： [DEFAULT] interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver external_network_bridge = # 蓝色部分为网络高可用切换设置 ha_confs_path = $state_path/ha_confs ha_vrrp_auth_type = PASS ha_vrrp_auth_password = ha_vrrp_advert_int = 2 [AGENT] dhcp_agent.ini 配置如下： [DEFAULT] interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver external_network_bridge = [AGENT] metadata_agent.ini 配置如下： [DEFAULT] nova_metadata_ip = controller metadata_proxy_shared_secret = METADATA_SECRET [AGENT] 以上配置需要注意的是 plugins/ml2/linuxbridge_agent.ini 两个注释说明： physical_interface_mappings = provider:eno33554992 # 访问外网的网卡名，每台controller节点IP是不同的 local_ip = 192.168.0.11 # 管理地址，每台controller节点的管理IP是不同的
将以上六个文件拷贝到其他controller节点，拷贝一定不要遗漏文件，注意以下三项：
neutron.conf bind_host = 192.168.0.xx plugins/ml2/linuxbridge_agent.in physical_interface_mappings = provider:eno33554992 local_ip = 192.168.0.11
以下操作建议手动每个节点逐个修改，避免造成混乱
[root@controller1 neutron]# vim /etc/neutron/metadata_agent.ini [DEFAULT] nova_metadata_ip = controller1 metadata_proxy_shared_secret = METADATA_SECRET [AGENT] [cache]
Controller2、controller3节点修改同上，nova_metadata_ip改成对应的主机名
为计算服务配置网络功能：
建议逐个修改，避免配置文件混乱：
[root@controller1 ~]# vim /etc/nova/nova.conf [neutron] url = http://controller:9696 auth_url = http://controller:35357 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = neutron password = neutron
网络初始化脚本需要一个超链接，如下：
在每个controller节点执行：
# ln -vs /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini ‘/etc/neutron/plugin.ini’ -> ‘/etc/neutron/plugins/ml2/ml2_conf.ini’
同步数据库只需要在一台controller节点上执行即可：
[root@controller1 ~]# 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 打印的都是 info 信息。
重启计算服务，每个controller节点执行
# systemctl restart openstack-nova-api.service
执行完成，再次确认nova各项服务是否正常
各项服务正常。
启动neutron各项服务，建议一项一项启动，监测日志有无报错信息
[root@controller1 ~]# systemctl start neutron-server.service [root@controller1 ~]# systemctl start neutron-linuxbridge-agent.service [root@controller1 ~]# systemctl start neutron-dhcp-agent.service [root@controller1 ~]# systemctl start neutron-metadata-agent.service [root@controller1 ~]# systemctl start neutron-l3-agent.service 全部启动成功，日志打印都是 info 信息，设置开机启动，前面的服务都是设置为开机启动的。 [root@controller1 ~]# systemctl enable neutron-server.service neutron-linuxbridge-agent.service neutron-dhcp-agent.service neutron-metadata-agent.service neutron-l3-agent.service
neutron各项服务只有 neutron-server需要监听端口为：9696，配置到haproxy中。
目前 haproxy 监听的配置如下：
listen galera_cluster mode tcp bind 192.168.0.10:3306 balance source option mysql-check user haproxy server controller1 192.168.0.11:3306 check inter 2000 rise 3 fall 3 backup server controller2 192.168.0.12:3306 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:3306 check inter 2000 rise 3 fall 3 backup listen memcache_cluster mode tcp bind 192.168.0.10:11211 balance source server controller1 192.168.0.11:11211 check inter 2000 rise 3 fall 3 backup server controller2 192.168.0.12:11211 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:11211 check inter 2000 rise 3 fall 3 backup listen dashboard_cluster mode tcp bind 192.168.0.10:80 balance source option tcplog option httplog server controller1 192.168.0.11:80 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:80 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:80 check inter 2000 rise 3 fall 3 listen keystone_admin_cluster mode tcp bind 192.168.0.10:35357 balance source option tcplog option httplog server controller1 192.168.0.11:35357 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:35357 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:35357 check inter 2000 rise 3 fall 3 listen keystone_public_internal_cluster mode tcp bind 192.168.0.10:5000 balance source option tcplog option httplog server controller1 192.168.0.11:5000 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:5000 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:5000 check inter 2000 rise 3 fall 3 listen glance_api_cluster mode tcp bind 192.168.0.10:9292 balance source option tcplog option httplog server controller1 192.168.0.11:9292 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:9292 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:9292 check inter 2000 rise 3 fall 3 listen glance_registry_cluster mode tcp bind 192.168.0.10:9191 balance source option tcplog option httplog server controller1 192.168.0.11:9191 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:9191 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:9191 check inter 2000 rise 3 fall 3 listen nova_compute_api_cluster mode tcp bind 192.168.0.10:8774 balance source option tcplog option httplog server controller1 192.168.0.11:8774 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:8774 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:8774 check inter 2000 rise 3 fall 3 listen nova_metadata_api_cluster mode tcp bind 192.168.0.10:8775 balance source option tcplog option httplog server controller1 192.168.0.11:8775 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:8775 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:8775 check inter 2000 rise 3 fall 3 listen nova_vncproxy_cluster mode tcp bind 192.168.0.10:6080 balance source option tcplog option httplog server controller1 192.168.0.11:6080 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:6080 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:6080 check inter 2000 rise 3 fall 3 listen neutron_api_cluster mode tcp bind 192.168.0.10:9696 balance source option tcplog option httplog server controller1 192.168.0.11:9696 check inter 2000 rise 3 fall 3 server controller2 192.168.0.12:9696 check inter 2000 rise 3 fall 3 server controller3 192.168.0.13:9696 check inter 2000 rise 3 fall 3
启动成功后，拷贝到其他controller节点：
[root@controller1 ~]# scp /etc/haproxy/haproxy.cfg controller2:/etc/haproxy/ haproxy.cfg 100% 6607 6.5KB/s 00:00 [root@controller1 ~]# scp /etc/haproxy/haproxy.cfg controller3:/etc/haproxy/ haproxy.cfg 100% 6607 6.5KB/s 00:00
安装配置计算节点
以下操作都是在compute节点上：
[root@compute1 ~]# yum install openstack-neutron-linuxbridge ebtables ipset -y
配置通用组件：
Networking 通用组件的配置包括认证机制、消息队列和插件
[root@compute1 ~]# vim /etc/neutron/neutron.conf [DEFAULT] transport_url = rabbit://openstack:openstack@controller1,openstack:openstack@controller2,openstack:openstack@controller3 auth_strategy = keystone … [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:35357 neutron.conf:memcached_servers = controller1:11211,controller2:11211,controller3:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = neutron password = neutron … [oslo_concurrency] lock_path = /var/lib/neutron/tmp 配置私有网络： [root@compute1 ~]# vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini [DEFAULT] [agent] [linux_bridge] physical_interface_mappings = provider:eno33554992 [securitygroup] enable_security_group = True firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver [vxlan] enable_vxlan = True local_ip = 192.168.0.31 l2_population = True 为计算服务添加网络功能： [root@compute1 ~]# vim /etc/nova/nova.conf … [neutron] url = http://controller:9696 auth_url = http://controller:35357 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = neutron password = neutron … 配置完成，重启计算服务API [root@compute1 ~]# systemctl restart openstack-nova-compute.service 启动Linuxbridge服务并开机启动 [root@compute1 ~]# systemctl start neutron-linuxbridge-agent.service [root@compute1 ~]# systemctl enable neutron-linuxbridge-agent.service
验证网络服务
在任意controller节点上执行：
网络服务正常，再次确认计算服务
计算服务正常。neutron配置成功。
