HAProxy-1.8.x版本源码编译

 源码编译HAProxy：　　

 官网下载HAProxy包，并解压包，切换到haproxy包目录下

[root@centos17haproxy-1.8.20]#tar xvf haproxy-1.8.20.tar.gz && cd haproxy-1.8.20

 安装相关依赖包

[root@centos17haproxy-1.8.20]#yum install gcc gcc-c++ glibc glibc-devel pcrepcre-devel openssl openssl-devel systemd-devel net-tools vim iotopbczip unzip zlib-devellrzsztree screen lsof tcpdump wget ntpdate

  开始编译

[root@centos17haproxy-1.8.20]#make ARCH=x86_64 TARGET=linux2628 USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 USE_SYSTEMD=1 USE_CPU_AFFINITY=1 PREFIX=/usr/local/haproxy

  指定安装路径

[root@centos17haproxy-1.8.20]#make install PREFIX=/usr/local/haproxy

  将可执行程序haproxy复制/usr/sbin/目录下

[root@centos17haproxy-1.8.20]#cp haproxy  /usr/sbin/

　创建haproxy启动脚本　vim  /usr/lib/systemd/system/haproxy.service

[Unit]
Description=HAProxy Load Balancer
After=syslog.target network.target

[Service]
ExecStartPre=/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg   -c -q
ExecStart=/usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg   -p /run/haproxy.pid
ExecReload=/bin/kill -USR2 $MAINPID

[Install]
WantedBy=multi-user.target

 创建启动脚本目录

[root@centos_17haproxy]#mkdir /etc/haproxy

创建haproxy服务启动目录及基本的配置文件

[root@centos_17haproxy]#vim /etc/haproxy/haproxy.cfg 
global
maxconn 100000
chroot /usr/local/haproxy
#stats socket /var/lib/haproxy/haproxy.sock mode 600 level admin
user haproxy
group haproxy
daemon
nbproc 2   绑定两个cpu就开启下面两个，绑定四个就开启四个
cpu-map 1 0
cpu-map 2 1
#cpu-map 3 2
#cpu-map 4 3
pidfile /usr/local/haproxy/run/haproxy.pid
log 127.0.0.1 local3 info

defaults
option http-keep-alive
option  forwardfor
maxconn 100000
mode http
timeout connect 300000ms
timeout client  300000ms
timeout server  300000ms

listen stats
 mode http
 bind 0.0.0.0:9999
 stats enable
 log global
 stats uri     /haproxy-status
 stats auth    haadmin:q1w2e3r4ys

listen  web_port
 bind 0.0.0.0:80
 mode http
 log global
 server web1  127.0.0.1:8080  check inter 3000 fall 2 rise 5

 创建一个haproxy用户，并设置为系统不能登录的shell类型

[root@centos_17haproxy]#useradd -s /sbin/nologin haproxy

 启动haproxy服务

[root@centos_17haproxy]#systemctl start haproxy

 查看haproxy启动的线程数

[root@centos_17haproxy]#ps -ef |grep haproxy  可以看到此时用户名是nobody启动双线程，并都属于一个父进程
root 13270 1 0 21:59 ? 00:00:00 /usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid
haproxy 13272 13270 0 21:59 ? 00:00:00 /usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid
haproxy 13273 13270 0 21:59 ? 00:00:00 /usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid
root 13278 12621 0 21:59 pts/0 00:00:00 grep --color=auto haproxy