使用nginx代理centos yum 源

我们在安装centos 服务器时，可能会有以下情况：

　　局域网内有若干台服务器，但是只有一台服务器可以连接外网，其余服务器都不可以连接外网，但通过局域网与外网机器联通。

那么我们再使用 yum 安装软件时，可以采用以下方式

• 搭建本地 yum 源
• 使用nginx 代理 yum 源

其中方法1比较复杂且一旦需要第三方数据源时，更麻烦，因此我们这里介绍使用方法2。

1. 在有外网的服务器上安装 nginx

　　安装 epel 源

yum -y install epel-release

　　安装 nginx

yum -y install nginx

　　

2. 配置nginx 代理 yum 源

　　新增 nginx 配置文件

vim /etc/nginx/conf.d/centos-7-yum.conf

　　输入以下内容，这里添加了一些常用的yum源，如果需要其他yum源可以自行添加

    # centos 7 yum local source
    server {
        listen       7000;
        server_name  192.168.251.148;

        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Headers X-Requested-With;
        add_header Access-Control-Allow-Methods GET,POST,OPTIONS;

        location / {
            root   html;
            index  index.html index.htm;
        }

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

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

        location /mariadb/ {
            proxy_pass http://mirrors.ustc.edu.cn/mariadb/;
        }

    }

　　检查nginx 配置，并重载nginx配置

nginx -t
nginx -s reload

　　

3. 在没有外网的服务器上面配置 yum 源

　　备份以前的yum 源配置文件

cd /etc/yum.repos.d
mv CentOS-Base.repo CentOS-Base.repo.bak

　　根据上方代理的 yum 源，创建如下配置文件，注意将ip 192.168.1.100 换成对应的有外网服务器的局域网ip

　　CentOS-Base-nginx.repo

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://192.168.251.148:7000/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://192.168.251.148:7000/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$releasever - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://192.168.251.148:7000/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://192.168.251.148:7000/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://192.168.251.148:7000/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://192.168.251.148:7000/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
baseurl=http://192.168.251.148:7000/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://192.168.251.148:7000/centos/RPM-GPG-KEY-CentOS-7

　　epel-nginx.repo

[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=http://192.168.251.148:7000/epel/7/$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 - $basearch - Debug
baseurl=http://192.168.251.148:7000/epel/7/$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://192.168.251.148:7000/epel/7/SRPMS
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7

　　MariaDB-nginx.repo

# MariaDB 10.2 CentOS repository list - created 2017-07-03 06:59 UTC
# http://downloads.mariadb.org/mariadb/repositories/
[mariadb]
name = MariaDB
baseurl = http://192.168.251.148:7000/mariadb/yum/10.3/centos7-amd64
gpgkey=http://192.168.251.148:7000/mariadb/yum/RPM-GPG-KEY-MariaDB
gpgcheck=1

　　刷新 yum 源

yum clean all
yum makecache