Hey good people. Today in this short tutorial I’ll share with you tips on how to create local CentOS 6 and CentOS 7 repository mirrors. This is beneficial when you have a good number of systems and you want to save on bandwidth, fasten package installations, network installations and systems updates.
This guide will use rsync to sync the mirrors from upstream. Path used to save sync contents is /var/mirrors/. Make sure you adjust the path to a filesystem that has enough space, or mount a new disk/partition.
Bash Scripts to sync CentOS 6 and 7 mirrors:
Below script will sync both CentOS 6 and CentOS 7 mirrors. substitute directory variables with your desired. Save script to a file, make
#!/bin/bash
if [ -f /var/lock/subsys/rsync_updates ]; then
echo "Updates via rsync already running."
exit 0
fi
base_dir="/var/mirrors/centos/"
centos_7_mirror_dir="/var/mirrors/centos/7/"
centos_6_mirror_dir="/var/mirrors/centos/6/"
touch /var/lock/subsys/rsync_updates
if [[ -d "$centos_7_mirror_dir" && -d "$centos_6_mirror_dir" ]] ; then
rsync -avSHP --delete rsync://mirror.liquidtelecom.com/centos/7/ "$centos_7_mirror_dir" && \
rsync -avSHP --delete rsync://mirror.liquidtelecom.com/centos/6/ "$centos_6_mirror_dir" && \
# sync keys
rsync -avSHP --delete rsync://mirror.liquidtelecom.com/centos/RPM-GPG-KEY-CentOS-7 "$base_dir" && \
rsync -avSHP --delete rsync://mirror.liquidtelecom.com/centos/RPM-GPG-KEY-CentOS-6 "$base_dir" && \
rm -rf /var/lock/subsys/rsync_updates
else
echo "Directories doesn't exist"
fi
Bash Script to sync Epel mirrors:
#!/bin/bash
if [ -f /var/lock/subsys/rsync_updates ]; then
echo "Updates via rsync already running."
exit 0
fi
epel6_mirror_dir="/var/mirrors/epel/6/x86_64"
epel7_mirror_dir="/var/mirrors/epel/7/x86_64"
base_dir="/var/mirrors/epel/"
touch /var/lock/subsys/rsync_updates
if [[ -d "$epel6_mirror_dir" && -d "$epel7_mirror_dir" ]] ; then
rsync -avSHP --delete rsync://mirror.wbs.co.za/fedora-epel/6/x86_64/ "$epel6_mirror_dir" && \
rsync -avSHP --delete rsync://mirror.wbs.co.za/fedora-epel/7/x86_64/ "$epel7_mirror_dir" && \
rsync -avSHP --delete rsync://mirror.wbs.co.za/fedora-epel/RPM-GPG-KEY-EPEL-7 "$base_dir" && \
rsync -avSHP --delete rsync://mirror.wbs.co.za/fedora-epel/RPM-GPG-KEY-EPEL-6 "$base_dir" && \
rm -rf /var/lock/subsys/rsync_updates
else
echo "Directories doesn't exist"
fi
if [[ $? -eq '0' ]]; then
echo ""
echo "Sync successful.."
else
echo " Syncing failed"
exit 1
fi
These scipts can be run in cron to keep the mirrors current.
Serve the mirrors with Nginx
After the sync is complete, you can begin using them by serving with nginx,
Install nginx:
yum -y install epel-release
yum -y install nginxThen add configuration files:
cat /etc/nginx/conf.d/centos.conf
server {
listen 80;
server_name centos.mirrors.domain.com;
root /var/mirrors/centos/;
location / {
autoindex on;
}
}
For EPEL:
cat /etc/nginx/conf.d/epel.conf
server {
listen 80;
server_name epel.mirrors.domain.com;
root /var/mirrors/epel;
location / {
autoindex on;
}
}
Start and enable nginx:
systemctl start nginx
systemctl enable nginx
Configuring CentOS Server to use the mirrors
CentOS Base mirrors:
cd /etc/yum.repos.d/
sudo mkdir old
sudo mv CentOS* old
sudo vim centos-local.repo
Add content below.
[base]
name=CentOS-$releasever - Base
baseurl=http://centos.mirrors.domain.com/$releasever/os/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://centos.mirrors.domain.com/$releasever/os/$basearch/RPM-GPG-KEY-CentOS-7
[updates]
name=CentOS-$releasever - Updates
baseurl=http://centos.mirrors.domain.com/$releasever/updates/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://centos.mirrors.domain.com/$releasever/os/$basearch/RPM-GPG-KEY-CentOS-7
[extras]
name=CentOS-$releasever - Extras
baseurl=http://centos.mirrors.domain.com/$releasever/extras/$basearch/
enabled=0
gpgcheck=1
gpgkey=http://centos.mirrors.domain.com/$releasever/os/$basearch/RPM-GPG-KEY-CentOS-7
[centosplus]
name= CentOS-$releasever - Plus
baseurl=http://centos.mirrors.domain.com/$releasever/centosplus/$basearch/
enabled=0
gpgcheck=1
gpgkey=http://centos.mirrors.domain.com/$releasever/os/$basearch/RPM-GPG-KEY-CentOS-7
Test that the repos work just fine by updating repo cache.
sudo yum clean all
sudo yum makecache fast
sudo yum -v repolist
Epel Mirrors:
$ sudo vim /etc/yum.repos.d/epel.repo
[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=http://epel.mirrors.domain.com/$releasever/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://epel.mirrors.domain.com/RPM-GPG-KEY-EPEL-$releasever
Also check:
