How to Set Up Local Yum Repository Centos 7

Anyone who operates many Linux servers in their environment is also faced with the problem of system updates from time to time. Now everyone can carry out the updates during the night, but this does not avoid the problem of traffic on their Internet line. 

How to Set Up Local Yum Repository Centos 7

Similar to WSUS at Microsoft, Linux offers the option of running its own repo server. Updates, addons or extras are automatically downloaded at the selected time and stored locally on the server. The admin is responsible for the distribution or polling interval of the updates.

Preparation

The basic requirement is a running web server on our system. There we create the following directories:

# mkdir -p /var/www/html/centos/7/os/i386
# mkdir -p /var/www/html/centos/7/updates/i386

The path must of course be adjusted for the 64-bit community. :-)

Installing

Next we create the reference of our distribution with:

# createrepo /var/www/html/centos/7/os/i386/

The createrepo package must be installed for this.

# yum install createrepo

Configure

Master

Finally, we create a cron job which downloads the packages at the selected times:

/usr/bin/rsync -avrt rsync://ftp.riken.jp/centos/7/updates/i386 –exclude=debug/ /var/www/html/centos/7/updates/| /bin/mail admin@localdomain.de -s "New updates available"

So that we can also find out that new packages are available, we let ourselves be informed by e-mail.

Client

On our clients we edit the CentOS-Base.repo:

# vi /etc/yum.repos.d/CentOS-Base.repo

[base]

name=CentOS-$releasever - Base

baseurl=http://192.168.*.*/centos/$releasever/os/$basearch/

#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os 

#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/ 

gpgcheck=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7 

#released updates 

[update] 

name=CentOS-$releasever - Updates 

baseurl=http://192.168.*.*/centos/$releasever/updates/$basearch/ 

#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates 

#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/ 

gpgcheck=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7

Maybe that's all I can share with you guys, hopefully this article will be useful.

Thank You