Ubuntu 16.04 haproxy 简单配置应用

global
        log /dev/log    local0
        log /dev/log    local1 notice
        chroot /var/lib/haproxy
        pidfile /var/run/haproxy.pid　　#haproxy的pid存放路径,启动进程的用户必须有权限访问此文件
        stats socket /run/haproxy/admin.sock mode 660 level admin
        stats timeout 30s
        user haproxy
        group haproxy
        daemon

        # Default SSL material locations
        ca-base /etc/ssl/certs
        crt-base /etc/ssl/private

        # Default ciphers to use on SSL-enabled listening sockets.
        # For more information, see ciphers(1SSL). This list is from:
        #  https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
        ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
        ssl-default-bind-options no-sslv3

defaults
        log     global
        mode    http　　　　#默认的模式mode { tcp|http|health }，tcp是4层，http是7层，health只会返回OK
        option  httplog
        option  dontlognull
        maxconn 60000
        retries 3
        timeout connect 5000
        timeout client  50000
        timeout server  50000
        errorfile 400 /etc/haproxy/errors/400.http
        errorfile 403 /etc/haproxy/errors/403.http
        errorfile 408 /etc/haproxy/errors/408.http
        errorfile 500 /etc/haproxy/errors/500.http
        errorfile 502 /etc/haproxy/errors/502.http
        errorfile 503 /etc/haproxy/errors/503.http
        errorfile 504 /etc/haproxy/errors/504.http

listen stats　　　　# 管理界面，统计信息参数配置
        bind 0.0.0.0:1080　　#监听端口
        stats refresh 30s　　#统计页面自动刷新时间
        stats uri /stats　　#统计url
        stats realm Haproxy Manager　　#统计页面密码框上提示文本
        stats auth admin:admin　　　　#统计页面登录的用户和密码

frontend main　　　　# 前端haproxy服务器配置
        bind 0.0.0.0:80
        acl url_static path_beg -i /static /images /javascript /stylesheets
        acl url_static path_end -i .jpg .gif .png .css .js
        use_backend static if url_static　　#满足策略要求，则响应策略定义的backend页面
        default_backend dynamic　　　　#不满足则响应backend的默认页面

backend static
        balance roundrobin　　#负载均衡模式轮询
        server static 127.0.0.1:80 check　　#后端服务器定义

backend dynamic
        balance roundrobin
        server websrv1 192.168.20.178:80 check maxconn 1000　　#后端web server
        server websrv2 192.168.20.179:80 check maxconn 1000　　#后端web server