一、问题

内网有一台服务器安装了MongoDB,因开发需要,要外网也能访问。查询资料后发现Haproxy可以解决。方法是,用外网的服务器代理内网TCP。

二、环境

  • 外网IP:xxx.xxx.xxx.xxx
  • Mongo数据库内网IP:192.168.100.3
  • Mongo数据库端口27017

三、实现步骤

1.宿主机下载docker镜像

docker pull haproxy

2.宿主机添加Haproxy配置文件(用于容器挂载)

mkdir /usr/local/etc/haproxy
vim /usr/local/etc/haproxy/haproxy.cfg
#配置的haproxy.cfg文件
global
    log         127.0.0.1 local2
    chroot      /usr/local/etc/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     4000
    #user        haproxy
    #group       haproxy
    daemon
    # turn on stats unix socket
    stats socket /usr/local/etc/haproxy/stats
defaults
    log     global
    log 127.0.0.1 local3
    mode    http
    option tcplog
    option  dontlognull
    retries 10
    option redispatch
    maxconn         2000
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout http-keep-alive 10s
    timeout check           10s
listen  mongo
    bind xxx.xxx.xxx.xxx:27017
    mode tcp
    balance roundrobin
    server mongo1 192.168.100.2:27017

3.创建且运行容器

docker run -d --name haproxy --net=host -v /usr/local/etc/haproxy:/usr/local/etc/haproxy haproxy

4.在宿主机测试

mongo 127.0.0.1:27017

done


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