最后，请按照以下步骤操作：

• 不要使用/etc/nginx/conf.d/下的配置文件，只使用1个配置文件/etc/nginx/nginx.conf，如下所示

# For more information on configuration, see:
        #   * Official English Documentation: http://nginx.org/en/docs/
        #   * Official Russian Documentation: http://nginx.org/ru/docs/

        user nginx;
        worker_processes auto;
        error_log /var/log/nginx/error.log;
        pid /run/nginx.pid;

        events {
            worker_connections 8192;
        }

        http {
            log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                              '$status $body_bytes_sent "$http_referer" '
                              '"$http_user_agent" "$http_x_forwarded_for"';

            access_log  /var/log/nginx/access.log  main;
            tcp_nopush     on;
            sendfile            on;
            keepalive_timeout   65;
            types_hash_max_size 2048;

            client_body_buffer_size 10K;
            client_header_buffer_size 1k;
            client_max_body_size 512m;
            large_client_header_buffers 2 1k;

            client_body_timeout 1200;
            client_header_timeout 1200;
            send_timeout 100;

            include             /etc/nginx/mime.types;
            default_type        application/octet-stream;

        server {
            listen       80;
            server_name  example.uni.edu;

            # note that these lines are originally from the "location /" block
            root   /usr/share/nginx/html;
            index index.php index.html index.htm;

            location / {
                root   /usr/share/nginx/html;
                try_files $uri $uri/ =404;
                index index.php;
            }
            error_page 404 /404.html;
            error_page 500 502 503 504 /50x.html;
            location = /50x.html {
                root /usr/share/nginx/html;
            }

            location ~ [^/]\.php(/|$) {
                root   /usr/share/nginx/html;
                fastcgi_split_path_info  ^(.+\.php)(/.+)$;
                fastcgi_index   index.php;
                fastcgi_pass    unix:/var/run/php-fpm/php-fpm.sock;
                #fastcgi_pass 127.0.0.1:9000;
                include         fastcgi_params;
                fastcgi_param   PATH_INFO       $fastcgi_path_info;
                fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
            }

            ###################### For Moodle Application ##################
            location /dataroot/ {
                internal;
                alias /var/moodledata/; # ensure the path ends with /
            }

            location /cachedir/ {
                internal;
                alias /var/moodledata/cache/; # ensure the path ends with /
            }

            location /localcachedir/ {
                internal;
                alias /var/moodledata/localcache/; # ensure the path ends with /
            }

            location /tempdir/ {
                internal;
                alias /var/moodledata/temp/; # ensure the path ends with /
            }

            location /filedir/ {
                internal;
                alias /var/moodledata/filedir/; # ensure the path ends with /
            }
            ###################### For Moodle Application ##################
        }
       }

字符串

• 请确保您使用一个有效的haproxy配置沿着2个不同的端口80是后端和8080是监测统计

#---------------------------------------------------------------------
    # Example configuration for a possible web application.  See the
    # full configuration options online.
    #
    #   http://haproxy.1wt.eu/download/1.4/doc/configuration.txt
    #
    #---------------------------------------------------------------------

    #---------------------------------------------------------------------
    # Global settings
    #---------------------------------------------------------------------
    global
        # to have these messages end up in /var/log/haproxy.log you will
        # need to:
        #
        # 1) configure syslog to accept network log events.  This is done
        #    by adding the '-r' option to the SYSLOGD_OPTIONS in
        #    /etc/sysconfig/syslog
        #
        # 2) configure local2 events to go to the /var/log/haproxy.log
        #   file. A line like the following can be added to
        #   /etc/sysconfig/syslog
        #
        #    local2.*                       /var/log/haproxy.log
        #
        log         127.0.0.1 local2

        chroot      /var/lib/haproxy
        pidfile     /var/run/haproxy.pid
        maxconn     10000
        user        haproxy
        group       haproxy
        daemon

        # turn on stats unix socket
        stats socket /var/lib/haproxy/stats

    #---------------------------------------------------------------------
    # common defaults that all the 'listen' and 'backend' sections will
    #use if not designated in their block
    #---------------------------------------------------------------------
    defaults
        mode                    http
        log                     global
        option                  httplog
        option                  dontlognull
        option http-server-close
        option forwardfor       except 127.0.0.0/8
        option                  redispatch
        retries                 3
        timeout http-request    10s
        timeout queue           1m
        timeout connect         10s
        timeout client          1m
        timeout server          1m
        timeout http-keep-alive 10s
        timeout check           10s
        maxconn                 10000

    #---------------------------------------------------------------------
    #HAProxy statistics backend
    #---------------------------------------------------------------------
    listen haproxy3-monitoring *:8080
      mode    http
      option forwardfor
      option httpclose
      stats   enable
      stats   show-legends
      stats   refresh           5s
      stats   uri               /stats
      stats   realm             Haproxy\ Statistics
      stats   auth              username:password
      stats   admin             if TRUE

    #---------------------------------------------------------------------
    # main frontend which proxys to the backends
    #---------------------------------------------------------------------
    frontend main
            bind *:80
            option http-server-close
            option forwardfor
            default_backend webapp-main

    # round robin balancing between the various backends
    #---------------------------------------------------------------------
    backend webapp-main
            balance source
            option httpchk HEAD / HTTP/1.1\r\nHost:\ example.uni.edu
            server  web1 10.10.1.21:80 check
            server  web2 10.10.1.22:80 check

型

• 现在您可以查找您的统计信息http://10.10.1.18:8080/或http://example.uni.edu:8080/

您也可以浏览您的应用程序http://example.uni.edu
注意：请确保您的公共ip指向您的haproxy服务器成功！