记录一下，全程照着神仙教程做的，感谢CSDN的大佬带路！
附上来源链接以示感谢：https://blog.csdn.net/mushuangpanny/article/details/126354803
首先部署了NTP，bbr，yum update一下，接下来就开始做下面的步骤了
wget https://github.com/haproxy/haproxy/archive/refs/tags/v2.7-dev0.tar.gz 先下载
yum -y install make gcc pcre-devel bzip2-devel openssl-devel systemd-devel 安装依赖
tar xf v2.7-dev0.tar.gz 解压缩
useradd -r -M -s /sbin/nologin haproxy 创建用户
cd haproxy-2.7-dev0/ 进入目录
make clean
make -j $(grep 'processor' /proc/cpuinfo |wc -l) \
> TARGET=linux-glibc \
> USE_OPENSSL=1 \
> USE_ZLIB=1 \
> USE_PCRE=1 \
> USE_SYSTEMD=1
make install PREFIX=/usr/local/haproxy 编译、安装软件完成
下面开始验证安装
cd /usr/local/ 进入目录
ll 看是否有haproxy
cd haproxy/
ll 看是否有sbin
cd sbin/
ll 看是否有haproxy
vi /etc/sysctl.conf 配置系统参数
net.ipv4.ip_nonlocal_bind = 1
net.ipv4.ip_forward = 1
sysctl -p
mkdir -p /etc/haproxy 创建配置目录
cd /etc/haproxy 进入目录
vi haproxy.cfg 创建并配置配置文件
#--------------全局配置----------------
global
log 127.0.0.1 local0 info
#log loghost local0 info
maxconn 20480
#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 10s
timeout client 10s
timeout server 10s
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 roundrobin
cookie SESSION_COOKIE insert indirect nocache
server web01 192.168.232.134:80 check inter 2000 fall 5
server web02 192.168.232.128:80 check inter 2000 fall 5
#server web01 192.168.80.102:80 cookie web01 check inter 2000 fall 5
vi /etc/rsyslog.conf 配置日志
local0.* /var/log/haproxy.log 加入这条配置
systemctl enable --now rsyslog 开启日志
systemctl restart rsyslog 重启日志
vi /usr/lib/systemd/system/haproxy.service 配置编写
[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
[Install]
WantedBy=multi-user.target
systemctl daemon-reload 重新载入
systemctl enable --now haproxy 启动haproxy
ss -antl 查看端口状态