Build a Centos 7 Repo

Install httpd

[root@www ~]# yum -y install httpd
# remove welcome page
[root@www ~]# rm -f /etc/httpd/conf.d/welcome.conf

Configure httpd. Replace server name to your own environment.

[root@www ~]# vi /etc/httpd/conf/httpd.conf
# line 86: change to admin's email address

ServerAdmin root@srv.world
# line 95: change to your server's name

ServerName www.srv.world:80
# line 151: change

AllowOverride All
# line 164: add file name that it can access only with directory's name

DirectoryIndex index.html index.cgi index.php
# add follows to the end

# server's response header

ServerTokens Prod
# keepalive is ON

KeepAlive On

[root@www ~]# systemctl start httpd
[root@www ~]# systemctl enable httpd

Install other required packages.

[root@dlp ~]# yum -y install rsync createrepo

Create directories for repository and copy data from CentOS official Repository.

Create directories

[root@dlp ~]# mkdir -p /var/www/repos/centos/7/{os,updates,extras}/x86_64
[root@dlp ~]# chmod -R 755 /var/www/repos

Copy from official repo

[root@dlp ~]# rsync -avz --delete --exclude='repodata' \
rsync://ftp.riken.jp/centos/7/os/x86_64/ \
/var/www/repos/centos/7/os/x86_64/
[root@dlp ~]# rsync -avz --delete --exclude='repodata' \
rsync://ftp.riken.jp/centos/7/updates/x86_64/ \
/var/www/repos/centos/7/updates/x86_64/
[root@dlp ~]# rsync -avz --delete --exclude='repodata' \
rsync://ftp.riken.jp/centos/7/extras/x86_64/ \
/var/www/repos/centos/7/extras/x86_64/

Create metadata repositories

[root@dlp ~]# createrepo /var/www/repos/centos/7/os/x86_64/
[root@dlp ~]# createrepo /var/www/repos/centos/7/updates/x86_64/
[root@dlp ~]# createrepo /var/www/repos/centos/7/extras/x86_64/

Add copy task to daily jobs.

[root@dlp ~]# vi /etc/cron.daily/update-repo

# create new
#!/bin/bash

VER='7'
ARCH='x86_64'
REPOS=(os updates extras)

for REPO in ${REPOS[@]}
do
rsync -avz --delete --exclude='repodata' \
rsync://ftp.riken.jp/centos/${VER}/${REPO}/${ARCH}/ /var/www/repos/centos/${VER}/${REPO}/${ARCH}/
createrepo /var/www/repos/centos/${VER}/${REPO}/${ARCH}/
done

[root@dlp ~]# chmod 755 /etc/cron.daily/update-repo

Configure Apache httpd to provide repository for other Client Servers.

[root@dlp ~]# vi /etc/httpd/conf.d/repos.conf

# create new
Alias /repos /var/www/repos
<directory /var/www/repos>
Options +Indexes
Require all granted
</directory>

[root@dlp ~]# systemctl restart httpd

If Firewalld is running, allow HTTP service.

[root@dlp ~]# firewall-cmd --add-service=http --permanent
success
[root@dlp ~]# firewall-cmd --reload
success

On Client Servers, Change settings of Yum to refer to Local Yum Mirror. It’s OK all.

[root@client ~]# vi /etc/yum.repos.d/CentOS-Base.repo
[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
baseurl=http://centos.bintel.com.bd/repos/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
baseurl=http://centos.bintel.com.bd/repos/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
baseurl=http://centos.bintel.com.bd/repos/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7