因目前企业生产网络禁止联网，对于使用Linux的我们来说，非常不方便，想要使用yum源都很困难，挂dvd又不能完全满足要求，所以自建一个企业级的yum源，定时从公网同步到本地，然后生产网络直接配置在本地yum源，完美解决问题。当然如果网络允许，你也可以协调网络维护的兄弟开通生产网络访问公有的yum源，比如阿里云yum，网易yum，清华大学yum。本文仅介绍本地yum源的搭建和同步方法。
1、资源准备
- 准备一台Linux主机，磁盘不少于1T
- 在网络上面找个rsync共享的yum源，比如清华大学的yum，mirrors.ustc.edu.cn
- 编写同步脚本，下面为示例，各位兄弟可以根据自己的环境进行调整
- 客户端yum配置文件编写及测试
2、同步脚本编写
1）CentOS8 yum源同步脚本
#!/bin/bash #Script name:rsync_yumrepo.sh RsyncBin="/usr/bin/rsync" RsyncPerm='-avrt --delete --no-iconv' # RsyncPerm='-avzP --delete --no-iconv' Centos_8_base='/data/yum_repo/Centos-8/' LogFile='/data/yum_repo/rsync_yum_log' Date=`date +%Y-%m-%d` #check function check { if [ $? -eq 0 ];then echo -e " 33[1;32mRsync is success! 33[0m" >>$LogFile/$Date.log else echo -e " 33[1;31mRsync is fail! 33[0m" >>$LogFile/$Date.log fi } if [ ! -d "$LogFile" ];then mkdir $LogFile fi #rsync centos 8 echo 'Now start to rsync centos 8 base!' >>$LogFile/$Date.log $RsyncBin $RsyncPerm rsync://mirrors.ustc.edu.cn/centos/8/ $Centos_8_base >>$LogFile/$Date.log check
2）CentOS7 yum源同步脚本
#!/bin/bash
#Script name:rsync_yumrepo.sh
RsyncBin="/usr/bin/rsync"
RsyncPerm='-avrt --delete --no-iconv'
Centos_7_base='/data/yum_repo/Centos-7/Base/'
Centos_7_epel='/data/yum_repo/Centos-7/Epel/'
Centos_7_rpmforge='/data/yum_repo/Centos-7/Rpmforge/'
LogFile='/data/yum_repo/rsync_yum_log'
Date=`date +%Y-%m-%d`
#check
function check {
if [ $? -eq 0 ];then
echo -e " 33[1;32mRsync is success! 33[0m" >>$LogFile/$Date.log
else
echo -e " 33[1;31mRsync is fail! 33[0m" >>$LogFile/$Date.log
fi
}
if [ ! -d "$LogFile" ];then
mkdir $LogFile
fi
#rsync centos 7 base
echo 'Now start to rsync centos 7 base!' >>$LogFile/$Date.log
$RsyncBin $RsyncPerm rsync://mirrors.ustc.edu.cn/centos/7/os/ $Centos_7_base >>$LogFile/$Date.log
check
#rsync centos 7 epel
echo 'Now start to rsync centos 7 epel!' >>$LogFile/$Date.log
$RsyncBin $RsyncPerm --exclude=SRPMS/ --exclude=ppc64/ rsync://mirrors.ustc.edu.cn/epel/7/ $Centos_7_epel >>$LogFile/$Date.log
check
#rsync centos 7 rpmforge
echo 'Now start to rsync centos 7 x86_64 rpmforge!' >>$LogFile/$Date.log
$RsyncBin $RsyncPerm rsync://ftp-stud.fht-esslingen.de/dag/redhat/el7/en/x86_64/rpmforge/ $Centos_7_rpmforge/x86_64/ >>$LogFile/$Date.log
check
3）CentOS6 yum源同步脚本
#!/bin/bash
#Script name:rsync_yumrepo.sh
RsyncBin="/usr/bin/rsync"
RsyncPerm='-avrt --delete --no-iconv --bwlimit=1000'
Centos_6_base='/data/yum_repo/Centos-6/Base/'
Centos_6_epel='/data/yum_repo/Centos-6/Epel/'
Centos_6_rpmforge='/data/yum_repo/Centos-6/Rpmforge/'
LogFile='/data/yum_repo/rsync_yum_log'
Date=`date +%Y-%m-%d`
#check
function check {
if [ $? -eq 0 ];then
echo -e " 33[1;32mRsync is success! 33[0m" >>$LogFile/$Date.log
else
echo -e " 33[1;31mRsync is fail! 33[0m" >>$LogFile/$Date.log
fi
}
if [ ! -d "$LogFile" ];then
mkdir $LogFile
fi
#rsync centos 6 base
echo 'Now start to rsync centos 6 base!' >>$LogFile/$Date.log
$RsyncBin $RsyncPerm rsync://mirrors.yun-idc.com/centos/6/os/ $Centos_6_base >>$LogFile/$Date.log
check
#rsync centos 6 epel
echo 'Now start to rsync centos 6 epel!' >>$LogFile/$Date.log
$RsyncBin $RsyncPerm --exclude=SRPMS/ --exclude=ppc64/ rsync://mirrors.yun-idc.com/epel/6/ $Centos_6_epel >>$LogFile/$Date.log
check
#rsync centos 6 rpmforge
echo 'Now start to rsync centos 6 i386 rpmforge!' >>$LogFile/$Date.log
$RsyncBin $RsyncPerm rsync://ftp-stud.fht-esslingen.de/dag/redhat/el6/en/i386/rpmforge/ $Centos_6_rpmforge/i386/ >>$LogFile/$Date.log
check
echo 'Now start to rsync centos 6 x86_64 rpmforge!' >>$LogFile/$Date.log
$RsyncBin $RsyncPerm rsync://ftp-stud.fht-esslingen.de/dag/redhat/el6/en/x86_64/rpmforge/ $Centos_6_rpmforge/x86_64/ >>$LogFile/$Date.log
check
3、定时任务同步示例
crontab -e # 填入如下内容 8 2 * * * /data/yum_repo/rsync_yum_shell/rsync_centos_yum.sh > /dev/null 2>&1
4、客户端配置实例
[Base] name=CentOS-Base7-$basearch baseurl=http://yum.evs168.com/Centos-7/Base/$basearch enable=1 gpgcheck=1 gpgkey=http://yum.evs168.com/Centos-7/Base/$basearch/RPM-GPG-KEY-CentOS-7 [Rpmforge] name=CentOS-Base7-Rpmforge-$basearch baseurl=http://yum.evs168.com/Centos-7/Rpmforge/$basearch enable=1 gpgcheck=0 [Epel] name=CentOS-Base7-Epel-$basearch baseurl=http://yum.evs168.com/Centos-7/Epel/$basearch enable=1 gpgcheck=0
配置完成后，执行如下命令清除本地yum缓存，重新建立即可。
[root@yum-server01 ~]# yum clean all
Loaded plugins: fastestmirror, security
Cleaning repos: CentOS-6-Base Epel Rpmforge evunrpms
Cleaning up Everything
Cleaning up list of fastest mirrors
[root@yum-server01 ~]# yum makecache
Loaded plugins: fastestmirror, security Loading mirror speeds from cached hostfile CentOS-6-Base | 3.7 kB 00:00 ... CentOS-6-Base/group_gz | 226 kB 00:00 ... CentOS-6-Base/filelists_db | 6.4 MB 00:00 ... CentOS-6-Base/other_db | 2.8 MB 00:00 ... Epel | 4.3 kB 00:00 ... Epel/filelists_db | 7.7 MB 00:00 ... Epel/other_db | 2.9 MB 00:00 ... Rpmforge | 1.9 kB 00:00 ... Rpmforge/filelists_db | 2.3 MB 00:00 ... Rpmforge/other_db | 575 kB 00:00 ... localrpms | 2.9 kB 00:00 ... localrpms/filelists_db | 190 kB 00:00 ... localrpms/other_db | 8.8 kB 00:00 ... Metadata Cache Created
4、自定义rpm包加入yum源
实际生产过程中，我们可能要自定义各类的源码包，打包成rpm包，也可以将这些rpm包加入到本地yum源中
在yum服务器上面创建目录，使用如下命令创建本地yum仓库，然后使用http或ftp共享出去，在客户机配置下即可。
1）创建本地自定义rpm包存放目录
mkdir /data/yum_repo/Centos-8
2）删除repodata，如果有（第一次是没有这个目录的）
rm -fr repodata
3）创建新的repodata目录
createrepo .
4）客户端配置
[localrpms] name=LocalRepo baseurl=http://yum.evs168.com/localrpms enable=1 gpgcheck=0