Create local CentOS repository

If you have to install a lot if machines with CentOS or you just play with kickstart script you should create a local repository to speed the process up. All you need as prerequisite is a configured web server and a script which copies the changes only from the public repository.
This script handles the CentOS and EPEL repository as well.

Here comes the script:

# cat > /usr/local/bin/repo-sync.sh
#!/bin/bash

rsync=/usr/bin/rsync
rsyncopts='--progress -avHSP --bwlimit=512 --delete'
rsyncexcl='--exclude=openoffice*.rpm --exclude=fonts-chinese*.rpm 
--exclude=fonts-japanese*.rpm --exclude=fonts-korean*.rpm 
--exclude=libreoffice*.rpm --exclude=firefox*.rpm 
--exclude=thunderbird*.rpm --exclude=ImageMagick*.rpm --exclude=/SRPMS/ 
--exclude=/headers/ --exclude=*.src.rpm --exclude=*.drpm 
--exclude=*-debuginfo-*.rpm --exclude=/debug/ --exclude=/repoview/'

if [ -f /var/lock/subsys/repo-sync ]; then
    echo "Updates via rsync already running."
    exit 0
fi

mirror=ftp.fsn.hu::linux/centos
verlist="6 5"
archlist="i386 x86_64"
baselist="updates os"
local=/var/www/html/mirror/centos/

for ver in $verlist; do
  for arch in $archlist; do
    for base in $baselist; do
      echo "==================================="
      echo "===== CentOS $ver/$base/$arch ====="
      echo "==================================="
      lrepo=$local/$ver/$base/$arch
      /bin/mkdir $lrepo 2> /dev/null
      /bin/touch /var/lock/subsys/rsync_sync
      remote=$mirror/$ver/$base/$arch/
      $rsync $rsyncopts $rsyncexcl $remote $lrepo
      newpkgs=`/usr/bin/find $lrepo -ctime -1 | wc -l`
      if [ $newpkgs -gt 0 ]; then
       /usr/bin/createrepo $lrepo #>> /dev/null
      fi
    done
  done
done

mirror=ftp.linux.cz::pub/linux/fedora/epel
verlist="6 5"
archlist="i386 x86_64"
baselist="."
local=/var/www/html/mirror/epel/

for ver in $verlist; do
  for arch in $archlist; do
    for base in $baselist; do
      echo "==================================="
      echo "===== EPEL $ver/$base/$arch ====="
      echo "==================================="
      lrepo=$local/$ver/$base/$arch
      /bin/mkdir $lrepo 2> /dev/null
      /bin/touch /var/lock/subsys/rsync_sync
      remote=$mirror/$ver/$base/$arch/
      $rsync $rsyncopts $rsyncexcl $remote $lrepo
      newpkgs=`/usr/bin/find $lrepo -ctime -1 | wc -l`
      if [ $newpkgs -gt 0 ]; then
       /usr/bin/createrepo $lrepo #>> /dev/null
      fi
    done
  done
done

Ctrl-D

Some explanation:
- there are some exclusions at the beginning of the script because I do not need any graphical programs for servers
- you should replace mirror hosts and path with one which is closer to you
- be sure that you choose a mirror which supports rsync protocol. http and/or ftp is not necessary for this script. - you can select which version (verlist) and which architecture (archlist) to sync