使用 Nginx 制作内网 yum mirrors proxy

[TOC]

1. 背景

公司内网服务器不能直接通过 Internet 上网，但为了与外网通信和同步时间等，会指定那么几台服务器可以访问 Internet。这里就是通过能上网的机器作为 mirror proxy，制作内网使用的 yum 仓库。

2. 环境需求

内网 dns（推荐，非必须，因为可使用 IP 代替）
一台能上 Internet 的服务器 A
不能上 Internet 的服务器能与 A 服务器通信
这里示例为 CentOS7 和 Ubuntu16

3. Nginx 安装配置

Nginx 安装在能上网的 A 服务器上，安装过程略。具体一个 nginx server 配置如下：

# mirrors
server
    {
        listen 80;
        #listen [::]:80;
        server_name mirrors.yourdomain.com;
        index index.html index.htm index.php default.html default.htm default.php;
        root  /home/wwwroot/html;

        location /ubuntu/ {
            proxy_pass http://mirrors.aliyun.com/ubuntu/ ;
        }

        location /centos/ {
            proxy_pass http://mirrors.aliyun.com/centos/ ;
        }

        location /epel/ {
            proxy_pass http://mirrors.aliyun.com/epel/ ;
        }
}

以上使用阿里云镜像，其镜像版本很全，速度也很快。 http://mirrors.aliyun.com/

CentOS7 系统镜像源： cat /etc/yum.repos.d/CentOS-7.repo

[base]
name=CentOS-$releasever - Base - mirrors.yourdomain.com
failovermethod=priority
baseurl=http://mirrors.yourdomain.com/centos/$releasever/os/$basearch/
        http://mirrors.yourdomain.com/centos/$releasever/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirrors.yourdomain.com/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$releasever - Updates - mirrors.yourdomain.com
failovermethod=priority
baseurl=http://mirrors.yourdomain.com/centos/$releasever/updates/$basearch/
        http://mirrors.yourdomain.com/centos/$releasever/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirrors.yourdomain.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.yourdomain.com
failovermethod=priority
baseurl=http://mirrors.yourdomain.com/centos/$releasever/extras/$basearch/
        http://mirrors.yourdomain.com/centos/$releasever/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirrors.yourdomain.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.yourdomain.com
failovermethod=priority
baseurl=http://mirrors.yourdomain.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.yourdomain.com/centos/$releasever/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirrors.yourdomain.com/centos/RPM-GPG-KEY-CentOS-7

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.yourdomain.com
failovermethod=priority
baseurl=http://mirrors.yourdomain.com/centos/$releasever/contrib/$basearch/
        http://mirrors.yourdomain.com/centos/$releasever/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirrors.yourdomain.com/centos/RPM-GPG-KEY-CentOS-7

EPEL 第三方扩展源： cat /etc/yum.repos.d/epel.repo

[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=http://mirrors.yourdomain.com/epel/7/$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7

[epel-debuginfo]
name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
baseurl=http://download.yourdomain.com/epel/7/$basearch/debug
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1

[epel-source]
name=Extra Packages for Enterprise Linux 7 - $basearch - Source
baseurl=http://download.yourdomain.com/epel/7/SRPMS
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7

Ubuntu16 apt 镜像源： cat /etc/apt/sources.list

deb http://mirrors.yourdomain.com/ubuntu/ xenial main restricted universe multiverse
deb http://mirrors.yourdomain.com/ubuntu/ xenial-security main restricted universe multiverse
deb http://mirrors.yourdomain.com/ubuntu/ xenial-updates main restricted universe multiverse
deb http://mirrors.yourdomain.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb http://mirrors.yourdomain.com/ubuntu/ xenial-backports main restricted universe multiverse
deb-src http://mirrors.yourdomain.com/ubuntu/ xenial main restricted universe multiverse
deb-src http://mirrors.yourdomain.com/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://mirrors.yourdomain.com/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://mirrors.yourdomain.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb-src http://mirrors.yourdomain.com/ubuntu/ xenial-backports main restricted universe multiverse