Pacemaker+Haproxy实现高可用和负载均衡

1.配置高级的yum源(server1、server2)

[root@server1 yum.repos.d]# vim rhel-source.repo

name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.61.250/rhel6.5
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

[LoadBalancer]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.61.250/rhel6.5/LoadBalancer
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

[HighAvailability]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.61.250/rhel6.5/HighAvailability
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

[ResilientStorage]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.61.250/rhel6.5/ResilientStorage
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

[ScalableFileSystem]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://172.25.61.250/rhel6.5/ScalableFileSystem
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

[root@server1 yum.repos.d]# yum clean all
[root@server1 yum.repos.d]# yum repolist
[root@server1 yum.repos.d]# scp rhel-source.repo server2:/etc/yum.repos.d/

2.下软件，提供crm命令行接口，配置心跳节点，同时启动

[root@server1 yum.repos.d]# yum clean all
[root@server1 yum.repos.d]# yum repolist
[root@server1 yum.repos.d]# scp rhel-source.repo server2:/etc/yum.repos.d/

3.安装软件

server1：

yum install pssh-2.3.1-2.1.x86_64.rpm  crmsh-1.2.6-0.rc2.2.1.x86_64.rpm -y
yum install pacemaker -y
 cd /etc/corosync/
 [root@server1 corosync]# cp corosync.conf.example corosync.conf
[root@server1 corosync]# vim corosync.conf
 10                 bindnetaddr: 172.25.61.0	#同网段
 11                 mcastaddr: 226.94.1.1	
 12                 mcastport: 5413		
 13                 ttl: 1
 35 service {
 36         name:pacemaker
 37         ver:0
 38 }

[root@server1 corosync]# scp /etc/corosync/corosync.conf server2:/etc/corosync/

[root@server1 corosync]# scp /etc/corosync/corosync.conf server2:/etc/corosync/
##给sever2发一份

4.server1和server2开启服务

[root@server2 corosync]# /etc/init.d/corosync start
Starting Corosync Cluster Engine (corosync): [ OK ]
[root@server1 corosync]# /etc/init.d/corosync start
Starting Corosync Cluster Engine (corosync): [ OK ]

5.设置集群资源

[root@server2 corosync]# crm
crm(live)# configure
crm(live)configure# show
node server1
node server2
property $id="cib-bootstrap-options" \
	dc-version="1.1.10-14.el6-368c726" \
	cluster-infrastructure="classic openais (with plugin)" \
	expected-quorum-votes="2"ww
crm(live)configure# 				####初始化

crm(live)configure# verify 
   error: unpack_resources: 	Resource start-up disabled since no STONITH resources have been defined
   error: unpack_resources: 	Either configure some or disable STONITH with the stonith-enabled option
   error: unpack_resources: 	NOTE: Clusters with shared data need STONITH to ensure data integrity
Errors found during check: config not valid

01.将fence设备关闭
crm(live)configure# property stonith-enabled=false
crm(live)configure# verify
crm(live)configure# commit

02.先设置集群资源VIP，再设置apache服务
crm(live)configure# primitive vip ocf:heartbeat:IPaddr2 params ip=172.25.61.100 nic=eth0 cidr_netmask=24
crm(live)configure# verify 
crm(live)configure# commit 

6.server1和server2安装http，撰写默认发布页

[root@server1 corosync]# cd /var/www/html/
[root@server1 html]# vim index.html
[root@server1 html]# cat index.html 
server1

7.启动脚本

crm(live)configure# primitive apache lsb:httpd op monitor interval=10s
crm(live)configure# verify 
crm(live)configure# commit 

注意：动态监控下看到此时的VIP在server1上，httpd在server2上

8.设置资源组

crm(live)configure# group website vip apache 
crm(live)configure# verify 
crm(live)configure# commit 

9.测试

[root@foundation61 Desktop]# curl 172.25.61.100
server1
[root@foundation61 Desktop]# curl 172.25.61.100
server1
[root@foundation61 Desktop]# curl 172.25.61.100
server1
[root@foundation61 Desktop]# curl 172.25.61.100
server2
[root@foundation61 Desktop]# curl 172.25.61.100
server2
[root@foundation61 Desktop]# curl 172.25.61.100
server2

用客户主机访问，server1的corosyna服务停掉之后，有访问到了server2节点