实现 KeepAlive + Haproxy + Nginx 七层负载均衡 + 动静分离

﹏ヽ暗。殇╰゛Y 2022-10-19 01:59 199阅读 0赞

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*   试验环境：
 *  系统统一使用  CentOS 7.6
 *  192.168.2.6    KeepAlived + Haproxy
 *  192.168.2.10  KeepAlived + Haproxy
 *  192.168.2.4   Nginx     静态服务器1
 *  192.168.2.7   Nginx     静态服务器2
 *  192.168.2.11  Nginx + php    动态服务器
 *  192.168.2.12  Nginx + php   动态服务器2
 *  Firewalld 、iptables 以及 SElinux 均为关闭状态
 *  
 *  **首先配置 Keepalived + Haproxy**
 *  **在 192.168.2.6 和 2.10 上配置好互为主备**
 *  安装过程请参考：[https://blog.csdn.net/gaofei0428/article/details/104454894?spm=1001.2014.3001.5501][https_blog.csdn.net_gaofei0428_article_details_104454894_spm_1001.2014.3001.5501]
 *  
 *  添加（VIP）虚拟网卡
 *  ifconfig ens33:0 192.168.2.168 netmask 255.255.255.255 up
 *  
 *  ### **下面只列出配置文件和运行状态** ###
 *  ### **192.168.2.6** ###
 *  ### vim /etc/keepalived/keepalived.conf   ! Configuration File for keepalived  ###
    
    global\_defs \{  
       \#notification\_email \{  
        \# acassen@firewall.loc  
        \# failover@firewall.loc  
        \# sysadmin@firewall.loc  
       \#\}  
       \#notification\_email\_from Alexandre.Cassen@firewall.loc  
       \#smtp\_server 192.168.200.1  
       \#smtp\_connect\_timeout 30  
       router\_id LVS\_DEVEL  
       vrrp\_skip\_check\_adv\_addr  
       \#vrrp\_strict  
       vrrp\_garp\_interval 0.001  
       vrrp\_gna\_interval 0  
    \}
    
    vrrp\_instance DR\_1 \{  
        state **MASTER**  
        interface ens33  
        virtual\_router\_id **51**  
        lvs\_sync\_daemon\_inteface ens33  
        **priority 100**  
        advert\_int 1  
        authentication \{  
            auth\_type PASS  
            auth\_pass 1111  
        \}  
        virtual\_ipaddress \{  
            **192.168.2.168**  
        \}  
    \}
    
    vrrp\_instance DR\_2 \{  
        state **BACKUP**  
        interface ens33  
        virtual\_router\_id **53**  
        lvs\_sync\_daemon\_inteface ens33  
      **  priority 100**  
        advert\_int 1  
        authentication \{  
            auth\_type PASS  
            auth\_pass 1111  
        \}  
        virtual\_ipaddress \{  
            **192.168.2.169**  
        \}  
    \}
 *  ### **192.168.2.10** ###
 *  **cat /etc/keepalived/keepalived.conf**  
    ! Configuration File for keepalived
    
    global\_defs \{  
       \#notification\_email \{  
        \# acassen@firewall.loc  
        \# failover@firewall.loc  
        \# sysadmin@firewall.loc  
       \#\}  
       \#notification\_email\_from Alexandre.Cassen@firewall.loc  
       \#smtp\_server 192.168.200.1  
       \#smtp\_connect\_timeout 30  
       router\_id **LVS\_DEVEL**  
       vrrp\_skip\_check\_adv\_addr  
       \#vrrp\_strict  
       vrrp\_garp\_interval 0.001  
       vrrp\_gna\_interval 0  
    \}
    
    vrrp\_instance **DR\_1** \{  
        state **BACKUP**  
        interface ens33  
        virtual\_router\_id **51**  
        lvs\_sync\_daemon\_inteface ens33  
      **  priority 90**  
        advert\_int 1  
        authentication \{  
            auth\_type PASS  
            auth\_pass 1111  
        \}  
        virtual\_ipaddress \{  
            **192.168.2.168**  
        \}  
    \}
    
    vrrp\_instance **DR\_2** \{  
        state **MASTER**  
        interface ens33  
        virtual\_router\_id **53**  
        lvs\_sync\_daemon\_inteface ens33  
        **priority 110**  
        advert\_int 1  
        authentication \{  
            auth\_type PASS  
            auth\_pass 1111  
        \}  
        virtual\_ipaddress \{  
            **192.168.2.169**  
        \}  
    \}

--------------------

*  下面开始安装配置 Haproxy
 *  官网 ： https://www.haproxy.com    （访问比较慢）
 *  github : [https://github.com/haproxy/haproxy/releases/][https_github.com_haproxy_haproxy_releases]
 *

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*  **首先要安装 lua5.4.3**
 *  wget [https://www.lua.org/ftp/lua-5.4.3.tar.gz][https_www.lua.org_ftp_lua-5.4.3.tar.gz]
 *  tar xf [lua-5.4.3.tar.gz][https_www.lua.org_ftp_lua-5.4.3.tar.gz]
 *  cd lua-5.4.3
 *  make linux
    
    make install INSTALL\_TOP=/usr/local/lu

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*  **下面开始安装 haproxy**
 *  
 *  安装依赖
 *  yum install  vim iotop bc gcc gcc-c++ glibc glibc-devel pcre pcre-devel openssl  openssl-devel zip unzip zlib-devel  net-tools lrzsz tree ntpdate telnet lsof tcpdump wget libevent libevent-devel bc  systemd-devel bash-completion traceroute -y
    
    yum install libtermcap-devel ncurses-devel libevent-devel readline-devel  -y
 *  
 *  下载  haproxy ，这里做实验使用最新测试版本，生产环境请选择稳定版本 （2.4）
 *  wget https://github.com/haproxy/haproxy/archive/refs/tags/v2.5-dev1.tar.gz
 *  tar xf v2.5-dev1.tar.gz
 *  
 *  **make -j $(nproc) TARGET=linux-glibc USE\_OPENSSL=1 USE\_ZLIB=1 USE\_LUA=1 LUA\_LIB=/usr/local/lua/lib/ LUA\_INC=/usr/local/lua/include/ USE\_PCRE=1 USE\_SYSTEMD=1**
 *  
 *  **make install PREFIX=/usr/local/haproxy**

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![20210709105343575.png][]

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*  ** cp /usr/local/haproxy/sbin/haproxy /usr/sbin/    复制 haproxy 运行脚本**
 *  
 *  **cp ./examples/haproxy.init /etc/init.d/haproxy    复制 haproxy 启动脚本**
 *  **修改如下**
 *  \#!/bin/sh
    
    \# chkconfig: - 85 15
    
    \# description: HA-Proxy server
    
    \# processname: haproxy
    
    \# config: /usr/local/haproxy/etc/haproxy.cfg
    
    \# pidfile: /usr/local/haproxy/run/haproxy.pid
    
    \# Source function library.
    
    if \[ -f /etc/init.d/functions \]; then
    
    . /etc/init.d/functions
    
    elif \[ -f /etc/rc.d/init.d/functions \] ; then
    
     . /etc/rc.d/init.d/functions
    
    else
    
     exit 0
    
    fi
    
    \# Source networking configuration.
    
    \#. /etc/sysconfig/network
    
    \# Check that networking is up.
    
    \#\[ "$NETWORKING" = "no" \] && exit 0
    
    **\# This is our service name**
    
    **BASENAME=\`haproxy\`**
    
    **BIN=/usr/sbin/haproxy**
    
    **CFG=/usr/local/haproxy/etc/haproxy.cfg**
    
    **\[ -f $CFG \] || exit 1**
    
    **PIDFILE=/usr/local/haproxy/run/haproxy.pid**
    
    **LOCKFILE=/usr/local/haproxy/run/haproxy**
    
    RETVAL=0
    
    start() \{
    
     quiet\_check
    
     if \[ $? -ne 0 \]; then
    
     echo "Errors found in configuration file, check it with '$BASENAME check'."
    
     return 1
    
     fi
    
     echo -n "Starting $BASENAME: "
    
     daemon $BIN -D -f $CFG -p $PIDFILE
    
     RETVAL=$?
    
     echo
    
     \[ $RETVAL -eq 0 \] && touch $LOCKFILE
    
     return $RETVAL
    
    \}
    
    stop() \{
    
     echo -n "Shutting down $BASENAME: "
    
     killproc $BASENAME -USR1
    
     RETVAL=$?
    
     echo
    
     \[ $RETVAL -eq 0 \] && rm -f $LOCKFILE
    
     \[ $RETVAL -eq 0 \] && rm -f $PIDFILE
    
     return $RETVAL
    
    \}
    
    restart() \{
    
     quiet\_check
    
     if \[ $? -ne 0 \]; then
    
    echo "Errors found in configuration file, check it with '$BASENAME check'."
    
     return 1
    
     fi
    
     stop
    
     start
    
    \}
    
    reload() \{
    
     if ! \[ -s $PIDFILE \]; then
    
     return 0
    
     fi
    
     quiet\_check
    
     if \[ $? -ne 0 \]; then
    
     echo "Errors found in configuration file, check it with '$BASENAME check'."
    
     return 1
    
     fi
    
     $BIN -D -f $CFG -p $PIDFILE -sf $(cat $PIDFILE)
    
    \}
    
    check() \{
    
     $BIN -c -q -V -f $CFG
    
    \}
    
    quiet\_check() \{
    
     $BIN -c -q -f $CFG
    
    \}
    
    rhstatus() \{
    
     status $BASENAME
    
    \}
    
    condrestart() \{
    
     \[ -e $LOCKFILE \] && restart || :
    
    \}
    
    \# See how we were called.
    
    case "$1" in
    
     start)
    
     start
    
     ;;
    
     stop)
    
     stop
    
     ;;
    
    restart)
    
     restart
    
     ;;
    
     reload)
    
     reload
    
     ;;
    
     condrestart)
    
     condrestart
    
     ;;
    
     status)
    
     rhstatus
    
     ;;
    
     check)
    
     check
    
     ;;
    
     \*)
    
     echo $"Usage: $BASENAME \{start|stop|restart|reload|condrestart|status|check\}"
    
     exit 1
    
    esac
    
    exit $?

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*   **chmod 755 /etc/init.d/haproxy**

创建运行用户  
       useradd haproxy -Ms /sbin/nologin

mkdir /usr/local/haproxy/etc

vim /usr/local/haproxy/etc/haproxy.cfg          \#新创建该文件  
global  
    log 127.0.0.1 local0  
    \#log 127.0.0.1 local1 notice  
    \#log loghost local0 info  
    maxconn 4096  
    chroot /usr/local/haproxy  
    uid 99  
    gid 99  
    daemon  
    \#nbproc 1  
    pidfile /usr/local/haproxy/run/haproxy.pid  
defaults  
    log global  
    log 127.0.0.1 local3  
    mode http  
    option httplog  
    option httpclose  
    option dontlognull  
    option forwardfor  
    option redispatch  
    retries 2  
    maxconn 2000  
    balance roundrobin  
    stats uri /haproxy-stats  
    timeout connect 5000  
    timeout client 50000  
    timeout server 50000  
    mode http  
    option httpchk GET /index.php  
frontend http  
    bind \*:80  
    default\_backend http\_back  
backend http\_back  
    server Ngxin\_html1 192.168.2.4:80 weight 3 check  
    server Nginx\_html2 192.168.2.7:80 weight 3 check  
    server Nginx\_php1 192.168.2.11:80 weight 3 check  
    server Nginx\_php2 192.168.2.12:80 weight 3 check  
\#server node1 192.168.179.131:8081 check inter 2000 rise 3 fall 3 weight 30  
 \# inter 2000 健康检查时间间隔 2 秒  
 \# rise 3 检测多少次才认为是正常的  
 \# fall 3 失败多少次才认为是不可用的  
\# weight 30 权重

*   关于负载均衡算法  
     \#source 根据请求源 IP  
     \#static-rr 根据权重  
     \#leastconn 最少连接者先处理  
     \#uri 根据请求的 uri  
     \#url\_param 根据请求的 url 参数  
     \#rdp-cookie 据据 cookie(name)来锁定并哈希每一次请求  
     \#hdr(name) 根据 HTTP 请求头来锁定每一次 HTTP 请求  
    \#roundrobin 轮询方式
 *  mkdir -p /usr/local/haproxy/run       创建 PID 文件存放目录及赋予权限  
    chown -R nobody. /usr/local/haproxy/  
    
    ![20210709110319409.png][]
 *  配置日志收集  
    vim /etc/rsyslog.conf  
    $ModLoad imuxsock \# provides support for local system logging (e.g. via logger command)  
    $ModLoad imjournal \# provides access to the systemd journal  
    **$ModLoad imudp  
    $UDPServerRun 514**  
    $WorkDirectory /var/lib/rsyslog  
    $ActionFileDefaultTemplate RSYSLOG\_TraditionalFileFormat  
    $IncludeConfig /etc/rsyslog.d/\*.conf  
    $OmitLocalLogging on  
    $IMJournalStateFile imjournal.state  
    \*.info;mail.none;authpriv.none;cron.none                /var/log/messages  
    authpriv.\*                                              /var/log/secure  
    mail.\*                                                  -/var/log/maillog  
    cron.\*                                                  /var/log/cron  
    \*.emerg                                                 :omusrmsg:\*  
    uucp,news.crit                                          /var/log/spooler  
    local7.\*                                                /var/log/boot.log  
    **local3.\*                                                /var/log/haproxy.log  
    local0.\*                                                /var/log/haproxy.log**

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*   修改完配置文件一定要重启服务或者 reload

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*   依次启动 keepalive 和 haproxy
 *  systemctl restart keepalived.service   
    /usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/etc/haproxy.cfg
 *  
 *  停止 haproxy
 *  killall haproxy 或者 pkill haproxy 
 *  没有 killall 命令？安装 yum -y install psmisc
 *  
 *  设置开机启动
 *  chkconfig --add haproxy  
    chkconfig haproxy on  
    chkconfig --list haproxy

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*  然后在另外一台 keepalive 上做同样配置

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*  打卡浏览器 访问 VIP

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 19][]

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*   rr 论循成功

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*  测试漂移
 *  首先停止 192.168.2.6 的 keepalive

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*  观察另外一台 192.168.2.10 的运行情况

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*  成功漂移，测试浏览网页

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*   停止 192.168.2.10 后 依次打开 192.168.2.6 和 2.10

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*  查看 HAproxy 的监控页面

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*  ### **下面配置 nginx 动静分离** ###
 *  修改配置文件
 *  vim /usr/local/haproxy/etc/haproxy.cfg  
    global  
            log 127.0.0.1 local0  
            \#log 127.0.0.1 local1 notice  
            \#log loghost local0 info  
            maxconn 4096  
            chroot /usr/local/haproxy  
            uid 99  
            gid 99  
            daemon  
            \#nbproc 1  
            pidfile /usr/local/haproxy/run/haproxy.pid  
    defaults  
            log global  
            log 127.0.0.1 local3  
            mode http  
            option httplog  
            option httpclose  
            option dontlognull  
            option forwardfor  
            option redispatch  
            retries 2  
            maxconn 2000  
            balance roundrobin  
            stats uri /haproxy-stats  
            timeout connect 5000  
            timeout client 50000  
            timeout server 50000  
            mode http  
    **frontend http  
            bind \*:80  
            acl url\_static       path\_beg       -i /upload/  
            acl url\_static       path\_end       -i .jpg .jpeg .gif .png .css .js  
            acl url\_php       path\_end       -i .php  
            use\_backend imgserver if url\_static  
            use\_backend php if url\_php  
            default\_backend static**
    
    backend static  
            \#cookie srv insert nocache  
            balance roundrobin  
            option  httpchk GET /index.html  
            server  web1 192.168.2.4:80 cookie web1 weight 3 check inter 2000 rise 2 fall 3  
            server  web2 192.168.2.7:80 cookie web1 weight 3 check inter 2000 rise 2 fall 3  
    backend php  
            balance roundrobin  
            option  httpchk GET /index.php  
            server  php1 192.168.2.11:80  check inter 2000 fall 3  
    backend imgserver  
            balance roundrobin  
            server  img1 192.168.2.12:80  check inter 2000 fall 3
 *  重启服务 
 *  pkill haproxy
 *  /usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/etc/haproxy.cfg

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 32][]

*   访问静态页面 html 就分配到 2.4 和 2.7 
 *  访问 动态页面 php 就分配到 2.11
 *  访问图片 jpg png等就分配到 2.12

![20210709135048539.png][]

![20210709135058279.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 33][]

![20210709135137260.png][]

*   测试  keepalive

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 34][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 35][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 36][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 37][]

--------------------

*  Zabbix 监控 Haproxy
 *  根据官方文档提示，在  ** /usr/local/haproxy/etc/haproxy.cfg** 末尾添加  
      
    **frontend stats  
        bind \*:8404  
        stats enable  
        stats uri /stats  
        stats refresh 10s**

![20210710105724284.png][]

*  重启 haproxy  服务，然后在 zabbix web 管理界面添加
 *  选择 haproxy 主机，左键-------配置-----模板-----
 *  搜索   [HAProxy by HTTP][]  -----更新

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 38][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 39][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 40][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 41][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 42][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 43][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 44][]

--------------------

*  # Zabbix  监控 KeepAlived #
 *  编辑 shell 脚本
 *  mkdir  /etc/zabbix/scripts
 *  vim /etc/zabbix/scripts/check\_keepalived.sh   
    \#!/bin/bash
    
    if \[\[ \`ip address show dev ens33 |grep -E "192.168.2.168/32|192.168.2.169/32"|wc -l\` == "0" \]\]; then  
            echo "0";  
    else  
            echo "1";  
    fi
 *  chmod +x /etc/zabbix/scripts/check\_keepalived.sh

![20210710202541337.png][]

*   在 配置文件末尾添加
 *  tail -n2 /etc/zabbix/zabbix\_agentd.conf   
    UnsafeUserParameters=1  
    UserParameter=check\_keepalived,/etc/zabbix/scripts/check\_keepalived.sh

![20210710202712908.png][]

*   重启 zabbix-agent 服务
 *  然后在 web 界面添加 监控项
 *  配置 ----主机----监控项----创建监控项

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 45][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 46][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 47][]

*  创建触发器

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 48][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 49][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 50][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 51][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 52][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 53][]

*   这里的问题和恢复表达式的值，就是基于 shell 脚本的判断值
 *  添加

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 54][]

*   测试 依次停止 2台服务器的 keepalive

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 55][]

*   查看 报表-----动作日志

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 56][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 57][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 58][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 59][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 60][]

*   停止另外一台

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 61][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 62][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 63][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 64][]

*   依次恢复

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 65][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 66][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 67][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 68][]

--------------------

*  静态页面缓存
 *  在配置文件中添加以下内容，开启缓存
 *  
 *  cache section  
    cache  
    声明cache区域，分配一个共享缓存名称。
    
    total-max-size  
    定义使用内存大小，这个块将会被分为1kb的小块，它的最大值为4095
    
    max-object-size  
    定义缓存对象的大小，不能大于total-max-size的一般。如果没有定义，将会等于256个cache size。当objects的大小大于该值后将不会被缓存
    
    max-age  
    定义缓存过期时间，默认60s，
 *  ## proxy section ##
 *  http-request cache-use \[\{if | unless\} \]  
    试着去发送中缓存的对象。
 *  http-response cache-store \[\{if | unless\} \]  
    将http-response缓存起来，
 *         
 *          http-request cache-use foobar  
            http-response cache-store foobar  
    cache foobar  
            total-max-size 4  
            max-age 240

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 69][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 71][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 72][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70]: /images/20221005/7ec6f5d4f58644e7b92e56c1ce953629.png
[https_blog.csdn.net_gaofei0428_article_details_104454894_spm_1001.2014.3001.5501]: https://blog.csdn.net/gaofei0428/article/details/104454894?spm=1001.2014.3001.5501
[https_github.com_haproxy_haproxy_releases]: https://github.com/haproxy/haproxy/releases/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 1]: /images/20221005/18032605711f451e9d26dd4776d4838a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 2]: /images/20221005/af9884e208694160b3342e52721ac7b6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 3]: /images/20221005/11156bbfd9424db2896c016ce8219f22.png
[https_www.lua.org_ftp_lua-5.4.3.tar.gz]: https://www.lua.org/ftp/lua-5.4.3.tar.gz
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 4]: /images/20221005/64053e7421f542b2b448eb9b2534fcca.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 5]: /images/20221005/1ea4e75f9f524a17967d592cfe4cab07.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 6]: /images/20221005/c429d34961af4a68a0a8cf18f0ef5498.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 7]: /images/20221005/a8edfef5afd94b26b3d31d70f021f039.png
[20210709105343575.png]: /images/20221005/5791551c6be3439fb48e92ebd7d85e0c.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 8]: /images/20221005/6b979c8a9ff14e819c1072f9d8ce2408.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 9]: /images/20221005/3917997a5ae34bcfbecda8a21e1794c5.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 10]: /images/20221005/abf886a54ae649b3b4536cb370883eff.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 11]: /images/20221005/80c8fcaeda7b4c308c78455ac0da3ba3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 12]: /images/20221005/f18114da2d0141b79b6afc004f4d9d11.png
[20210709110319409.png]: /images/20221005/2758f49c365d4b84b41cf2e0ff209022.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 13]: /images/20221005/8b22e1b96b44437285fcc68f1c2cbb19.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 14]: /images/20221005/73eb301ed51b4f058879b799d434e11b.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 15]: /images/20221005/c532f9fadb964c3a96cd1cc15a7da0ee.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 16]: /images/20221005/194a29c5f5df4549896dcf86fc5e4009.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 17]: /images/20221005/2351d8fe7ee84ae29efcd9029943222e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 18]: /images/20221005/66d5d222aec940e9bc729424fdab77c3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhb2ZlaTA0Mjg_size_16_color_FFFFFF_t_70 19]: /images/20221005/5ded1901f69e41469aa7e46e6f3da704.png
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[20210710105724284.png]: /images/20221005/b1624643a458455baa80cb6e17f0b2de.png
[HAProxy by HTTP]: http://192.168.2.3/zabbix/templates.php?form=update&templateid=10309
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实现 KeepAlive + Haproxy + Nginx 七层负载均衡 + 动静分离

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