icehouse版本openstack部署lbaas服务

版本: icehouse

(1)    安装配置

1 控制节点:

 

vi /etc/neutron/neutron.conf

service_plugins=router,lbaas

 

[service_providers]

service_provider=LOADBALANCER:Haproxy:neutron.services.loadbalancer.drivers.haproxy.plugin_driver.HaproxyOnHostPluginDriver:default

重启服务

service neutron-server restart

 

2 网络节点:

apt-get install neutron-lbaas-agent haproxy

 

vi /etc/neutron/neutron.conf

service_plugins=router,lbaas

 

[service_providers]

service_provider=LOADBALANCER:Haproxy:neutron.services.loadbalancer.drivers.haproxy.plugin_driver.HaproxyOnHostPluginDriver:default

 

vi /etc/neutron/lbaas_agent.ini

verbose = True

interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver

device_driver =neutron.services.loadbalancer.drivers.haproxy.namespace_driver.HaproxyNSDriver

 

[haproxy]

user_group = haproxy

重启相关服务

service neutron-plugin-openvswitch-agentrestart

service neutron-lbaas-agent restart

 

3 计算节点: 不需要配置

4 Dashboard上显示’负载均衡器’

openstack dashboard node: 我们的dashboard安装在controller节点上

vi/etc/openstack-dashboard/local_settings.py

OPENSTACK_NEUTRON_NETWORK = {

'enable_lb': True

重启服务

service apache2 restart

service memcached restart

(2)    测试验证

创建两台同样的机器同时运行tomcat服务，工作在8080端口

基本的使用步骤为：

1 租户创建一个pool，初始时的member个数为0；

2 租户在该pool内创建一个或多个 member

3 租户创建一个或多个 healthmonitor

4 租户将health monitors与pool关联

5 租户使用pool创建vip

6 vip绑定floating ip

 

其中vip绑定Floating IP Dashboard中暂时不支持，只能通过命令行去做

为vip绑定一个floating ip

 

查找vip的端口号

neutron port-list | grep vip

| 9d2ccba8-8436-4e37-a519-3b365934ac25| vip-8a9c768b-fd41-4cf2-8373-25a637f25244| fa:16:3e:e1:8e:68 | {"subnet_id":"011ae103-3ee6-4bef-975a-b6c8a5e91c9d", "ip_address":"192.168.1.102"} |

 

创建一个floating ip

neutron floatingip-create ext-net

Created a new floatingip:

…

| floating_ip_address | 10.17.48.175                       || id                  | d4b24ee4-fbda-4253-b1c4-1ac81d37e4ff|…

执行绑定

neutronfloatingip-associate d4b24ee4-fbda-4253-b1c4-1ac81d37e4ff  9d2ccba8-8436-4e37-a519-3b365934ac25

 

查看haproxy配置

ps -ef | grep haprox

haproxy -f/var/lib/neutron/lbaas/a6886bb4-becd-44ba-86f0-9e388b1942a0/conf -p/var/lib/neutron/lbaas/a6886bb4-becd-44ba-86f0-9e388b1942a0/pid -sf 20917

 

查看配置/var/lib/neutron/lbaas/a6886bb4-becd-44ba-86f0-9e388b1942a0/conf

global

       daemon

       user nobody

       group haproxy

       log /dev/log local0

       log /dev/log local1 notice

       stats socket/var/lib/neutron/lbaas/a6886bb4-becd-44ba-86f0-9e388b1942a0/sock mode 0666level user

defaults

       log global

       retries 3

       option redispatch

       timeout connect 5000

       timeout client 50000

       timeout server 50000

frontend8a9c768b-fd41-4cf2-8373-25a637f25244

       option tcplog

       bind 192.168.1.102:8080

       mode http

       default_backend a6886bb4-becd-44ba-86f0-9e388b1942a0

       option forwardfor

backend a6886bb4-becd-44ba-86f0-9e388b1942a0

       mode http

       balance roundrobin

       option forwardfor

       timeout check 20s

       option httpchk GET /

       http-check expect rstatus 200

       cookie SRV insert indirect nocache

       server 7a55068e-6da9-4da0-bfb8-96a97ee1617c 192.168.1.241:8080 weight100 check inter 10s fall 3 cookie 0

       server 24948b51-81e2-40b0-b1ca-cc01159623e8 192.168.1.242:8080 weight100 check inter 10s fall 3 cookie 1

1.      在“frontend” 下的“bind 192.168.1.102:8080 ”是VIP, “backend” 下的“cookie SRVinsert indirect nocache ” 和“server” 行中的”cookie”对应着VIP对象的持久性方法HTTP_COOKIE。“server” 行中的”cookie”值表示Haproxy用来记住某个客户端正在访问哪个后台服务用的。

2. 在“backend”下的“timeoutcheck 20s ”和“option httpchk GET /”是monitor对象的内容；

3. 在“backend”下的“server” 代表Member对象；

4. 在“backend”下的“balance roundrobin ”代表Pool对象的负载均衡方法。

（3）验证Haproxy 的负载均衡，负载均衡方式可以在创建pool时设定

 

使用curl方法

curl 10.17.48.175:8080/index.jsp --usertomcat:tomcat -D - -o /dev/zero –s

结果：

HTTP/1.1 200 OK

Server: Apache-Coyote/1.1

Content-Type: text/html;charset=UTF-8

Transfer-Encoding: chunked

Date: Thu, 19 Mar 2015 08:02:45 GMT

Set-Cookie: SRV=1; path=/

Cache-control: private

再次执行

HTTP/1.1 200 OK

Server: Apache-Coyote/1.1

Content-Type: text/html;charset=UTF-8

Transfer-Encoding: chunked

Date: Thu, 19 Mar 2015 08:02:51 GMT

Set-Cookie: SRV=0; path=/

Cache-control: private

再次执行

HTTP/1.1 200 OK

Server: Apache-Coyote/1.1

Content-Type: text/html;charset=UTF-8

Transfer-Encoding: chunked

Date: Thu, 19 Mar 2015 08:02:52 GMT

Set-Cookie: SRV=1; path=/

Cache-control: private

 

观察到SRV=0 SRV=1 交替出现，验证结果是roundrobin均衡生效