-------web设置-----------------------
listen webcluster
bind 0.0.0.0:80
mode http
#option httpchk GET /index.html
log global
maxconn 3000
balance roundrobin
cookie SESSION_COOKIE insert indirect nocache
server web01 192.168.111.142:80 check inter 2000 fall 5
#server web01 192.168.111.143:80 cookie web01 check inter 2000 fall 5
//启动haproxy，配置haproxy.service服务单元文件
[root@LB ~]# vim /usr/lib/systemd/system/haproxy.service
[Unit]
Description=HAProxy Load Balancer
After=syslog.target network.target
[Service]
ExecStartPre=/usr/local/haproxy/sbin/haproxy -f /etc/haproxy/haproxy.cfg -c -q
ExecStart=/usr/local/haproxy/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid
ExecReload=/bin/kill -USR2 $MAINPID
[Install]
WantedBy=multi-user.target
[root@LB ~]# systemctl daemon-reload
//配置日志信息
[root@LB ~]# vim /etc/rsyslog.conf
local0.* /var/log/haproxy.log
[root@LB ~]# systemctl restart rsyslog
[root@LB ~]# systemctl enable rsyslog
[root@LB ~]# systemctl restart haproxy
[root@LB ~]# systemctl enable haproxy
2.Haproxy搭建http负载均衡
//LB、RS1、RS2都关闭防火墙和selinux
//RS1和RS2部署httpd
#RS1
[root@RS1 ~]# yum -y install httpd
[root@RS1 ~]# echo RS1 > /var/www/html/index.html
[root@RS1 ~]# systemctl enable --now httpd
#RS2
[root@RS2 ~]# yum -y install httpd
[root@RS2 ~]# echo RS2 > /var/www/html/index.html
[root@RS2 ~]# systemctl enable --now httpd
//修改LB的内核参数
[root@LB ~]# vim /etc/sysctl.conf
net.ipv4.ip_nonlocal_bind = 1
net.ipv4.ip_forward = 1
[root@LB ~]# sysctl -p
net.ipv4.ip_nonlocal_bind = 1
net.ipv4.ip_forward = 1
//修改haproxy配置文件
[root@LB ~]# vim /etc/haproxy/haproxy.cfg
global
daemon
maxconn 256
defaults
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
frontend http-in
bind *:80
default_backend servers
backend servers
server web01 192.168.111.142:80
server web02 192.168.111.143:80
[root@LB ~]# systemctl restart haproxy
//客户端验证
[root@client ~]# curl http://192.168.111.141
RS1
[root@client ~]# curl http://192.168.111.141
RS2
[root@client ~]# curl http://192.168.111.141
RS1
[root@client ~]# curl http://192.168.111.141
RS2
//使用WEB网页访问测试
[root@LB ~]# vim /etc/haproxy/haproxy.cfg
global
log 127.0.0.1 local0 info
#log loghost local0 info
maxconn 256
#chroot /usr/local/haproxy
pidfile /var/run/haproxy.pid
#maxconn 4000
user haproxy
group haproxy
daemon
#---------------------------------------------------------------------
#common defaults that all the 'listen' and 'backend' sections will
#use if not designated in their block
#---------------------------------------------------------------------
defaults
mode http
log global
option dontlognull
option httpclose
option httplog
#option forwardfor
option redispatch
balance roundrobin
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
timeout check 10s
maxconn 60000
retries 3
#--------------统计页面配置------------------
listen admin_stats
bind 0.0.0.0:8189
stats enable
mode http
log global
stats uri /haproxy_stats
stats realm Haproxy\ Statistics
stats auth admin:admin
#stats hide-version
stats admin if TRUE
stats refresh 30s
#---------------web设置-----------------------
listen webcluster
bind 0.0.0.0:80
mode http
#option httpchk GET /index.html
log global
maxconn 3000
balance rou